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Publication numberUS2252733 A
Publication typeGrant
Publication dateAug 19, 1941
Filing dateAug 25, 1938
Priority dateAug 25, 1938
Publication numberUS 2252733 A, US 2252733A, US-A-2252733, US2252733 A, US2252733A
InventorsRatchford Raymond G
Original AssigneeKatherine M Sherman, Sherman, Wellmore B Turner, William C Sherman
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Form bursting and stacking apparatus
US 2252733 A
Images(5)
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Description  (OCR text may contain errors)

1941- J. Q. SHERMAN ETAL 2,252,733

FORM BURSTING AND STACKING APIARATUS Filed Aug. 25, 1938 5 Sheets-Sheet 1 IN\IIENTORS 1/ QJHERM/I/V ix mmiizzi 1941- V J. Q. SHERMAN EI'AL ,2

FORM BURSTING AND STACKING APPARATUS Filed Aug. 25, 1938 s-sheets-shet 2 INVENTORS .SHEKM/i/V [/67 Q S 6 farm/wen I ORNEY Aug. 19, 194.1. 4]. 5. SHERMAN EIAL FORM BURSTING AND STACK ING APPARATUS Filed Aug. 25, 1938 5 Sheets-Sheet 3 INVENTOR5 1/6? .fiflERM/W Y 56 Farm/ am TTORNEY Aug. 19, 1941. J. Q. SHERMAN E'I'AL 2,252,733

l FORM BURSTING AND STACKING APPARATUS Filed Aug. 25, 1 938 5 Sheets-Shet 4 Aug. 19, 1941. .1. Q. SHERMAN ETAL FORM BURSTING AND STACKING APPARATUS Filed Aug. 25, 1938 5 Sheets- Sheet 5 INVENTORS z/AZSM/WA/V BY Rd F 7'6HFOK5 I to ivmmwjmm "synchronized with the strip severing device.

Patented Aug. 19, 1941 UNITED STAT Es "PA EN orricai roam, nuss'rmo sivn s'racimvc Arenas-ms mm o. Sherman me as... G. Ratchford, DaytomOhio; said Batehford asstlnor'to said the estate of said lolm Q. Application August :5, 193a, s i-aim. 226,780

43 (cuss-s1) ceeding impressions into individual sheets, slips,

or forms.

A further object of the invention is to provide for automatic stacking of thesevered sheets in an orderly fashion without the necessity of turning or reversingthe individual sheets.

A- further object of the invention is to provide .means for insuring the complete separation of successive portions of the stock strip, leaving clean edges thereon and on the severed sheet.

' A further object of the invention is to provide an apparatus of the present character having means for removingfrom the ultimate sheets any evidence, marking or configuration incident to To facilitate division of a strip or web into a succession of individual sheets such printed web or strip may be transversely scored or weakened intermediate succeeding impressions taneously with the imprinting operation or subsequent thereto, as most convenient, preparatory to being separated on such transverse division line. or in lieu of such preliminary scoring or weakening the strips may be sheared or cut between succeeding forms without such preliminary weakening.

In the present invention there is contemplated either bursting or shearing the strips transversely at predetermined spaced intervals into individual sheets, and in order that the strip and severing apparatus may be properly synchronized, the strip is preferably positively advanced to the strip severing means by pin type feeding devices operatively engageable in marginally punched holes in the strips, which punched marginal areas are progressively trimmed therefrom as the strips advance, after which the severed sheets are automatically stacked either one upon the other or one behind the other in orderly succession.

The object of the invention is to provide a strip feeding, severing and sheet stacking apsimulparatus which may not only be economically con-.

'structed and operated, but which will be highly efficient in use, rapid and automatic in its action,

uniform in operation, of relatively simple construction having comparatively few operating parts and unlikely to get out of repair.

'A" primary object of the invention is to pro- I A further object of the invention is to enable the advancement ofthe strips to be accurately their passage through the machine and the effect of the strip feeding operation.

I A further-object of the invention is to provide a strip severing and sheet stacking apparatus embodying the advantageous structural features and inherent meritorious characteristics herein disclosed.

With the above primary and other incidental objects in view as will more fully appear in the specification, the invention intended to be protected by Letters Patent consists of the features of construction, the parts and combinations thereof, and the mode of operation, or their equivalents, as hereinafter described or illustrated in the accompanying drawings.

Referring to the. accompanying drawings, wherein is shown the preferred but obviously not necessarily the only form of embodiment of the invention, Fig. 1 is a perspective view of an assembled apparatus embodying the present invention.

Fig. 2 is a top plan view thereof.

Fig. 3 is a longitudinal sectional view on line 3--3 of Fig. 2;

Fig. 4 is a side elevation from the right of Figs. 1 and 2; illustrating the-gear train for transmitting diflerential speed to the different operating devices. I 1

Fig. 5 is a fragmentary detail viewof the gear transmission train located at the opposite side of the machine for driving the bursting o'r severing rolls in unison. v

Fig.. 6 is a front elevation of the bursting or severing rolls partly in section.

Figs. 7 and 8 are respectively front elevation and sectional views of a frictional type feeding means for advancing. the stock strips to the severing devices, Fig, 8 being taken on line 8-8 of'Figfll.

Fig. 9 is a'detail view of the trimmer or slitter' device "for removing the marginally punched areas of the strips.

1 Fig. 10 is a side elevation illustrating an alterrial, which may be located trating the successive operations performed thereon.

Like parts are of reference throughoutthe several views.-

The apparatus forming the subject matter hereof is of relatively small and compact construction. It is preferablyn ounted on a pedestal f or table 1 and is adapted to be 'motor driven'by an electric motor 2. operated upon may be supplied from stock rolls or from supply packets of zig-zag folded mate- 4 onvthe shelf 4 at the front of the supporting table ;,I.

' other by transverse 6 which forms a guide over which the supply adjustable thereon The operating parts. of the apparatus located on top of the table are frame including upstanding parallel side plates -5, which are fixedly interconnected with each tie rods at spaced intervals.

At the front of the frame is a transverse tie rod which carries guide fingers a into and out of overhanging relation with the margins of the strip. By to and fro adjustment of the guide fingers l the apparatus may be accommodated to strip material of different widths, or the path of travel of the material into and through the apparatus may be laterally varied. Immediately beyond the rod 5 is a transverse rotary shaft 8 journaled strip is drawn and in the sideframes 5 and carrying the strip feedper se, forms no'part of but is of acharacter similar to that shown, de-

ing means. The strip feeding means may be frictional and comprise a frictional roller a carried upon the shaft 8, with whichcooperates a pressure roller was shown in Fig. 8. In such case the strip material 3 passes between the rollers 9 and to, where it is subjected to frictional contact thereof and is advanced by the rotation of such rollers. However, lieu of such frictional feeding means, positive pin type feeding mechanism is preferred. Such positive feeding means insures the accurate presentation of succeeding transverse weakened division lines H of the stock strip 3 at the strip severing position. To this end there is mounted upon the transverse feed shaft 8 a pair of relatively spaced pin wheel units I2 circirmferentially spaced pins 13 progressively engageable in marginally punched feed holes it in the strip material 3. The sole purpose of such marginally punched areas of the strip is to afford positive feeding engagement with the pin type feeding device l2. 1 when having performed its feeding function, the marginal areas of the strip 3 may be longitudinally severed from the body of the strip by means of slitter discs l5 coacting with the pin wheel units I! at the inner side of the pins l3 and the The slitter or trimmer discs ii are carried by arms l6 adjustably mounted upon a transverse tie rod I1 for to and fro lateral adjustment in conformity with the adjustment of the pin, type units 12.

the present invention scribed and claimed in copending' applications Serial Nos.'1l5,804 and 116,552.

Passing beyond the feeding means, whether 0:

indicated by similar characters having radially projecting marginally punched holes l4.

The particular trimmer mechanism,

frictional or positive pin type character, the advanced portion of, the strip passes.intermeand operate ascutting' strip; If, however, as

's'ti ip} has been diate a pair of severing rolls l8 and IS.-- The roll 18 has embedded in and forming lines 'of demarkation between succeeding sections or sheets to be severed therefrom, the Harlem blades 20 of the roll l8 are sharpened blades for severing the is preferable, the stock previously provided with a suc- 'c'ession of longitudinally disposed transverse The strip material to be journaledin a supporting severing blade 20.

" ing edge.

weakenedlines, then the blade 20 of the rolll8 c is preferably dulled or rounded upon its engag- This blade'2il is preferably embedded in a body of rubber or other resilient yielding material 2! which is compressible-as such-portion enclosing the blade engages under pressure with the strip and the opposing roll |.9.- The roll I8 is preferably provided with a longitudinal groove or recess in its periphery in which is received a channel shaped mountingZZ having at the middle thereof a longitudinal slot formed by upstanding flanges 23 in which isseated the Seated within the channel mount 22 at opposite sides of the blade zfl'are longitudinal strips 2| of compressible or resilient yielding material such as rubber, or'a yieldingly I. mounted pressure strip. The opposing roll I9 is The engagement of the likewise formed with longitudinal grooves or recesses 24 therein in which are seated strips 25 of yielding resilient material,- preferably, although not necessarily, provided in their peripheral faces with shallow register with the severing blade 20 as the rolls are rotated. The feeding unit I: and the severing rolls l8 and it are so timed and synchronized with each severing blade or blades 28 engage the strip coincident with the division lines between succeeding portions to be severed. If the strip has not been previously scored or weakened intermediate succeeding sections to be separated, the sharpened edge of the blade 28 cuts the strip. However, if, as is preferred, the strip has been previously weakened by scoring, perforating or otherwise upon the transverse division lines, the dull blade 20 performs a breaking or bursting operation by forcibly pressing the strip coincident with its weakened transverse division line against the yielding abutment 25 of the opposing roller i9.

However, as the severing blade 20 in rotation of the roll l8 engages the strip 3 adjacentto a division line on which it is to be severed, the extreme forward end of the strip is simultaneously engaged between apair of take-off rolls 2! and 28. The rolls 21 and 28 are actuated at a greater peripheral speed than the rolls l8 and i9. terminal end of the-strip between these mor rapidly rotating take-0K rolls 2'! and 28 tends to accelerate the advancement of the terminal portion of the strip while the stock portion thereof is momentarilygripped under pressure between the severing blade 20 and its yielding abutment surface 25. As result thereof, theterminal portion of the J strip is preferably simultaneously subjected to-bursting pressure between the rollers I8 and'ldand to a longitudinal pulling strain by the iinfluence of the rolls 2! and 23, which greatly inmates" the I the periphery thereof one; or mor severing blades which project slight- 1y beyond the periphery of the-roll. If the strip of material is not previously provided with trans-c verse weakened division lines by scoring, perforating, or otherwise weakening the strip grooves 26 which other that as the rolls rotate the 2,252,733 severance of the strips by the severing blade 28 whether it performs a cutting action or merely a bursting operation. Y

The strip having been severed intermediate y the rolls and I9, thereby forming -a terminal sheet 28, this severed sheet portion is advanced by the rapidly rotating rolls 2'! and 28 at accelerated speed and thus moves away from the stock portion of the strip. In practiceit has been found expedient to transmit to the takeof! rolls 2'! and 28 a peripheral speed of--a'p-' proximately one and one-half times that of the severing rolls I8 and I 8.

Located beyond the take-oil rolls 3|! and 3| are disposed with their axes in a common plane inclined or divergent to that of the intermediate rolls 2! and 28. As shown in Fig. 3, the uppermost roll 30 is disposed slightly in advance of the perpendicular plane of its companion roll 3|. As result of this slight ofisetting of the third pair of feed rolls 30 and 3|, the path of travel of the detached sheet 29 is deflected into angular relation with the plane of its previous travel-by elevating the rear transverse margin of the detached sheet and depressing the forward transverse margin thereof. The

:1 and 2a is" a third set of feed rolls 3|l and 3|. These rolls,

. 13 lower roller- 3| at a somewhat slower rate of speed than theperipheral speed of the rollers 30 and 3| and the speed of delivery of thesevered ,sheets 39. Asresult thereof, the severed-sheets are received upon the traveling belt 34- in. slightly overlapped relation as shown in Fig. 11. Beyond the travelinglendless belt, is a pair ofauxiliary stacker rolls '31 by which the severed sheets. are

1 delivered into a suitable receiver 38. The stacker rolls 31 are actuated by a belt from the apron roll 35st a somewhat increased peripheral speed whereby they are delivered from'the: traveling apron belt 34 at a' greater rate of speed than r they travel on such belt conveyor. I

-timed sequence to the several operating parts may be employed. In Fig. 4 the. parts are shown rolls and 3| are preferably operated at slightly less peripheral speed than the intermediate feed rolls 2'! and 28. As the trailing edge of the detached sheet leaves the intermediate feed rolls 2I and 28 it is inclined to flip upward, due to the Various methods of transmitting'motion'in actuated by a continuing gear train wherein a gear 48 upon the feed shaft] intermeslies with an idler gear 4|, which in turn meshes with a gear 42 on the shaft of the lowermost severing roll IS. The severing rolls I l and i8 areintergeared for unison rotation with each other at "the opposite side of the machineas shownin the detail view Fig. 6. As there shown, the shaft of the lowermost roll l9 carries at its opposite end a gear 43 which intermeshes with a gear 44 on the shaft of the upper severing roll l8. This gear 44 is-adjustably secured by a slotted connection 45, Fig. 5, which enables sumcient relative adjustment of therolls I8 and I9 to synchronize the severing blade 28 in proper relation with the lower roll IS; The gear 42 on the lower severing roll l9 intermeshes with the primary driving gear 46, which is operated by the motor 2 to transmit motion to'the entire-train- It also intermeshes with an idler gear 41, which in turn drives a gear 48 upbn the shaft 28 at increased speed to accelerate the movement of the terminal portion of the strip as it is being severed from the supply portion thereof.- This gear 48 in tum-meshes close contacting vertical position as shown inFig.

3. To this end there is provided beyond the rolls 30 and 3| a shelf 32, which is preferably slightly inclined upwardly from horizontal and which supports thereon loosely a follower board or support 33. This follower or support 33 is slidingly adjustable on the shelf 32 and is shifted thereon by the accumulation of severed sheets 29. The severed sheet 29 being ejected by the feed rolls 3!! and 3| in a downwardly and forwardly in-.

clined direction contacts the face of the previously. deposited sheet and is diverted thereby downwardly until it too assumes a vertical position .as shown in Fig. 3. The accumulation of severed sheets 29 gradually pushes the follower board 33 outwardly upon the supportingshelf 32, but maintains them in compact orderly fashion.

If instead of depositing the severed sheets in vertical position as shown in Fig. 3, which isquite suitable and desirable if the stock material is suillciently heavy, such sheets if of thin material may be deposited horizontally by a continuing delivery apparatus as shown in Fig. 11. This de livery mechanism illustrated in Fig. 11 is supplemental to that shown in- Fig. 3 and provides a continuation beyond the rolls. 3!! and 3| which are shown at the left of Fig. IL This delivery device for relatively thin flexible materiahincapable of being vertically supported, comprises a traveling apron or belt 34 mounted on relatively spaced rollers 35 for endless travel thereabout.

The rollers 35 are driven by a belt 36 from the with an idler gear 48 and such idler 49 again meshes with the driving gear 50upon the shaft of the lowermost roll 3| of the stacker rolls or the third pair of feeding rolls. This gear, as will be noted, is of slightly larger size whereby these rolls will be driven at a lesser peripheral speed, The upper rolls 28 and 30 frictionally engage their companion rolls 2'! and 3| under pressure.

.-In lieu of a continuing "gear train as illustrated in Fig. 4, the severaloperating parts may be actuated by a chain and sprocket drive as shown in Fig. 10. As therein shown, a continuous endless chain belt 5| engages successively the sprocket wheel 48' on the feed shaft 8 and the sprocket 42' on the shaft of the lower severing roll l8 and then engages progressively, an idler 41' and a sprocket 43" on the shaft of the lowermost intermediate feed roll 28.. Betwe n-this sprocket and the sprocket it"on the shaft of the lower roll 3| the chain passes beneath an idler sprocket 49'.,- The chain 5| is driven by sprocket 46' in turn driven by the actuating motor 2.

From the above description it will-be apparent that there is thus provided a device of the character described possessing f the particular features of adv ntage beforelenumerated as desirable, but which obviously is susceptible of modification in its form, proportions, detail construction and arrangement of partswithout de-.

Palm-Y e Principle involved or e c m ins 8310f its advantag j I I, I

Whil in order to comply with thestatute,

' the invention has been described in language more or lessspeciiic as to structural features,

' scope of the appended claims.

it-is to be understood that the invention is not limited to the specific features shown, but thatthe means and construction herein disclosed comprisethe preferred form of several modes of putting the invention into effect, and the in or modifications within the legitimate and valid Having thus described our invention; we

'claim: a v

1. In a strip severing apparatus wherein suecessive portions of a continuous strip ofmaative to advance the severed terminal portion of the strip at an inclination to the plane of its previous travel at a lesser rate of speed than vention is therefore claimed in any of-itsfornis .7

sheet is advanced at increased speed relative to the supply strip and subsequently tilted to enterial having therein a succession of transverse weakened division lines are advanced intostrip severing position, a pin type feeding, device engageable in marginally punched holes in the strip for positively advancing the strip, a slitter for trimming the marginallyv punched area from the strip before it reaches the strip severing position, a pair of pressure rollers between which the strip'is advanced, a-relatively dull pressure blade carried by one of the rollers, a resilient abutment area upon the companion .roll with which the blade cooperates to squeeze the striptherebetween with bursting pressure, a supplespective pairs of rollers'at diiferent peripheral speeds whereby the terminal portion of the strip is subjected to longitudinal pulling strain while the supply portion thereof is gripped between the blade and resilient abutment area, by which the terminal portion of the strip is detached as a separate'sheet, and ,a succeeding pair of feeding rolls to which the detached sheet is delivered by the intermediate supplemental rolls, said last mentioned rolls being disposed with their axes in a common plane inclined to the common plane of the axesof the supplemental intermeiate rolls, andmeans for driving the latter pair of rolls at a lesser peripheral speed, the construction and arrangement being such that the plane of travel of the detached sheet, through the latter rolls is divergent to. its plane of travel through the preceding rolls by elevating one edge and depressing the opposite edge thereby enabling the succeeding sheet being advanced at greater speed by the intermediate rolls to be projected into lapping relation with the trailing portion of the tilted sheet passing between the final rolls of the series. 2. In a strip severing apparatus wherein a continuous strip of material having therein a series of longitudinally spaced transverse weakened division lines is progressively divided into a succession of individual sheets, including a strip feeding means, a gripper device intermittently subjecting advanced portions of the strip to bursting pressure in proximity to a transverse weakened line thereof, a supplemental feeding tially coincident with the engagement therewith of said gripper device, means for actuating the initial 'strip feeding means and said supplemental able a following'detached sheet to advance into overlapping relation with a preceding sheet.

3. In a sheet forming and delivery apparatus, feeding means for progressively feeding a continuous strip of stock material having longitudinally spaced transverse weakened division lines,

a strip gripping device operable in unison with the feeding means to which the strip is advanced and operative to divide a predetermined 7 advance length .of material from the stock strip,

thereby forming an individual sheet, sheet feeding means advancing the severed sheet at an accelerated rate of speed beyond that of the stock strip, means for cocking the strip relative to its previous plane of travel whereby the leading edge of a succeeding severed sheet may advance into underlying lapping relation therewith and for depositing the severed sheet through a divergent path bf travel into close parallel relation with. previously deposited sheets. a

4. In a sheet forming and delivery apparatus, a pin type feeding device having operative engagement in longitudinally spaced holes in a strip of material for advancing the-strip to a strip severing device, slitter means for progresa strip severing device operable in timed relation feeding means at different speeds to diflerentially advance the terminal portion of the strip at a greater speed-than the supply portion thereofby whichthe terminal portion of the strip is subjected to longitudinal pulling strain to iacilitate the severance of the strip on a transverse,

-a succession of individual sheets including with the feeding device for dividing from the advancing strip a sheet comprising a terminal portion of predetermined length, sheet feeding means operable at an increased speed for advancing the severed sheet at increased speed, and a succeeding feeding device for the severed sheet operable at lesser speed feeding the severed sheet in a path of travel inclined to the plane in which it is advanced by the preceding feeding means, and a receiver in which the severed sheet is deposited thereby.

5.' The herein described method of dividing a continuous strip of material on longitudinally spaced transverse weakened lines thereof, into he steps of progressively advancing the terminal portion of the strip past a strip severing position, subjecting a portion thereof containing a transverse weakened line to longitudinal tension in the plane of the strip, subjecting the tensioned area thereof to pressure in a direction substantially perpendicular to the plane thereof and substantially; coincident with the transverse weakened line and subjecting the terminal portion of the strip beyond the weakened line to accelerated advancement.

6. In an apparatus of the character described, a strip feeding device for'advancing a continuous strip of record material, severing means operating in timed sequence with the strip feeding device for transversely severing succeeding portions of the strip therefrom, take-oil means receiving the severed portion of the strip and advancing it at an accelerated speed, and stacker means for the severed sheet advancing the sheet in a divergent direction from that in which it leaves the take-off means and depositing the sively advancing a strip of material to a strip severing position, transversely severing a predetermined length of material therefrom, accelerating the speed of advancement of the severed portion of the strip, tilting the plane of the severed length of material into inclined relation with its previous plane of advancement, and depositing the severed sheet in a vertical position contiguous to other previously deposited vertically disposed sheets.

8. The herein described method of dividing a continuous strip of writing material into a succession of individual sheets, including the steps of positively advancing a strip of material into strip severing position, simultaneously trimming a longitudinal margin from the strip during its advancement, transversely severing the marginally trimmed strip at predetermined spaced intervals in timed relation with' its advancement, materially accelerating the speed of advancement of the severed sheet beyond the speed of advancement of the remaining stock portion of the strip, cocking the advanced severed sheet relative to the path of travel of the succeeding severed sheet, whereby succeeding sheets may advance in lapping relation with preceding sheets, and depositing the severed sheets in parallel continuing succession.

9. In an apparatus for separating a continuous strip of writing material having preformed longitudinally spaced transverse weakened division lines, into a succession of individual sheets upon said longitudinally spaced transverse weakened division lines, including two relatively spaced pairs of rollers between which the strips pass successive'ly, a device intermediate the pairs of rollers for subjecting the strip to pressure, and means for driving the respective pairs of said rolls at different peripheral speeds whereby succeeding portions of the strip are subjected to tension and to differential advancement as the terminal portions of the strip are successively separated from thesupply portion of the strip on succeeding transverse weakened division lines,

10. In an apparatus for separating a continuous strip of record material into a succession of individual sheets upon longitudinally spaced transverse weakened division lines, including a pair of rollers between which the strip is passed, a dull pressure blade carried by one of the rollers intermittently engaging the strip upon rotation of the rollers, a yielding abutment area upon the companion-roller against which the strip is intermittently pressed by the dull blade under bursting pressure, and a second pair of rolls located in spaced relation with the first rolls rotatable at an increased rate of speed and having intermittent engagement with the terminal portion of the strip substantially coincident with the pressure engagement of the blade with the supply portion thereof, the construction and arrangement being such that the terminal portion of the strip is subjected to accelerated advancement substantially coincident with its separation on a transverse weakened line.

11. In an apparatus for dividing a continuous of the supply strip therefrom as individual sheets, a pair of feeding rollers between which the successive sheets are advanced after separation from the supply strip, a second pair of feeding rollers between which the severed sheets are advanced from the first rolls, the second pair of rolls being disposed with their axes in a common plane divergent to that of the first pair of rollers, and

means for driving the respective pairs of rollers at different rates of speed whereby the first pair of rollers rotate at a peripheral speed greater than that of the second pair of rolls, the construction and arrangement being such that the sheet engaged by the second pair of rollers is advanced in a path divergent to its path through the first pair of rolls wherein its one edge is depressed and its opposite edge is elevated, thereby permitting the succeeding sheet to advance into lapping relation under influence of the first pair of rolls.

12. In an apparatus of the character described, feeding means for a strip of record material to be severed into succeeding sheets, a supplemental feeding means having engagement with the terminal portion of the strip for advancing a sheet of material severed therefrom, and a second feeding means receiving the severed sheet from the preceding feeding means and serving to tilt the severed sheet out of its former plane of travel into inclined relation with its path of travel to enable lapping relation of succeeding sheets for advancement away from the severing position.

13. An apparatus wherein a continubus strip of record material having therein longitudinally spaced transverse weakened division lines is progressively advanced from a source of supply into ripheral speed than the advancement of the strip under influence of the feeding means having operative engagement with a terminal portion of the strip beyond the transverse line of engagement of the severing blade and subjecting the severed portion of the strip to acceleration of its advancement.

' 14. In an apparatus of the character described, a strip feeding means for progressively advancing into strip severing position successive portions of a continuous strip of material having therein transverse weakened division lines, means for temporarily clamping the strip in close proximity to a weakened division line thereof, pressure means engageable with the strip substantially at the transverse weakened line, and means for subjecting the terminal portion of the strip beyond the weakened line simultaneously to advancement, by which the terminal portion is separated from the supply portion of the strip on said transverse division line.

15. In a strip dividing and sheet stacking apparatus, apin type feeding device for positively advancing a continuous strip of material having strip of material into a succession of individual sheets, a strip feeding means for progressively advancing succeeding portions of a continuous strip of material into sheet severing position, means for detaching successive terminal portions holes into strip severing position, trimmer means for removing from the strip the punched marginal area before the corresponding portion of the strip from which such area is removed reaches the strip severing position, means for transversely severing 5 a terminal portion of predetermined length from the supply strip, and means for advancing the sever d"sheet independently of the remainder of thesupply strip and depositing the advanced strip edgewise in upstanding position contiguous to precedin sheets.

16. Ina strip severing apparatus, strip feeding means for progressively feeding into strip severing position a continuous strip of material having longitudinally spaced transverse weakened division lines upon which the strip is to be divided into successive sheets, bursting means subjecting the strip to bursting pressure substantially coincident with successive weakened division lines, and pulling means for imparting to the terminal portion of the strip to be separated an accelerated advance movement simultaneously with the subection of the strip to bursting pressure.

1'7. In a strip severing apparatus, strip feeding means for progressively advancing a continuous strip of material having at longitudinally spaced intervals transverse weakened division lines, a dull pressure blade and a resilient abutment therefor between which the strip is presented with a weakened line of division substantially in registry with the strip severing position, means for subjecting the strip to pressure between the blade and abutment, and means for subjecting the terminal portion of the strip beyond its point of engagement by the blade to relative advance movement.

18. An apparatus wherein a continuous strip of material is progressively advanced past a severing position at which it is transversely divided into a succession of individual sheets, a strip severing device intermittently operative to transversely sever the strip at longitudinally spaced intervals, strip feeding means for advancing the strip in timed relation with the operation of the severing device to assure accurate registry of predetermined lines of division at the strip severing position, and supporting means whereon the strip feeding means is adiustably mounted for adjustment relative to the severing device transversely of the path of the strip to enable strips of different widths to be fed to the severing device in any one of several parallel paths.

l9. In a sheet severing apparatus wherein a continuous strip of material having therein a sion on the initial transverse division line thereof is facilitated.

aligning feeding device having operative engagement with the continuous strip of material for advancing the strip past a strip severing device, a trimming device for progressively removing from the stripe. marginal portion thereof, a strip severing device operable in timed relation with succession of longitudinally spaced configurations I for operative engagement of a positive strip feeding device is divided on longitudinally spaced transverse weakened division lines into a succession of individual sheets, a strip feeding device having progressive engagement with the longitudinally spaced configurations of the strip for positively advancing successive portions of the strip into strip severing position, a relatively spaced feeding device having intermittent engagement with remaining terminal portion of the strip after detachment of each successive terminal portion therefrom and tending to advance the engaged terminal portion at an accelerated rate of speed, a strip engaging device intermediate the respective feeding devices engageable with the supply portion of the strip beyond the initial line of division thereof to resist acceleration of the speed of such supply portion under influence of the acceleration of the terminal portion of the strip by engagement of the secondary feeding device therewith, the construction and arrangement being such that the portion of the strip intermediate the intermediate strip engaging deviceand the accelerated feed device is subjected to tensionin a. longitudinal direction by which divithe feeding device for dividing from the advanced portion of the strip a sheet comprising a terminal portion thereof of predetermined length, and sheet feeding means engageable with the terminal portion of the strip to tension such portion in advance of operation of the severing device and then advance the severed sheet at increased speed independently of the advancement of the remainder of the strip.

2'1. The herein described method of dividing a continuous strip of record material at longitudinally spaced intervals into a succession of individual sheets, including the steps of advancing a strip of material into strip severing position, simultaneously trimming a longitudinal margin from the strip during its advancement, transversely severing the marginally trimmed strip at predetermined spaced intervals in timed relation with its advancement by'simultaneous tension and pressure on the terminal portion thereof, and materially accelerating the speed of advancement of the severed sheet beyond the speed of advancement of the remaining stock portionof the strip.

22. In a strip dividing and sheet stacking apparatus for record material, a pin type feeding device for positively advancing a continuous strip of material having therein asuccession of marginally punched feed holes into strip severing position, trimmer means for removing from the strip the punched marginal area before the corresponding portion of the strip from which such area is removed reaches the strip severing position. means for transversely severing a terminal portion of predetermined length from the supply strip by tension and pressure, feed rolls engageable with the severed sheet for advancing the severed sheet independently of the remainder of the supply strip, and a receiver into which the severed sheets are delivered thereby.

23. An apparatus wherein a continuous strip of record material is progressively advanced past a strip severing position and there transversely divided at predetermined longitudinally spaced intervals into a succession of individual sheets. including a severing device operable in timed sequence to divide the strip at predetermined longitudinally spaced intervals, a positive feeding device having progressive engagement with the strip for progressively advancing the strip through successive measured distances in timed relation with operation of'the strip severing device, and means for subjecting the terminal portion of the strip to tension coincident with the operation of the severing device, the construction and arrangement being such that equal-longitudinal lengths of the strip are successively advanced past the severing position intermediate successive opera-' tions ofthe strip severing device and are progressively severed from the supply strips into a succ'ession ,of sheets of predeterminedsize.

24. An apparatus wherein a continuous strip of record material is progressively advanced past a strip severing position and there transversely divided at predetermined spaced intervals into a succession individual sheets, astrip feedingmarginal area thereof simultaneously with theadvancement'of the strip, and a strip severing device operable in timed relation with the advance ment of the strip for severing from the previously trimmed remainder of the strip a terminal portion of predetermined length, said severing device including means for subjecting the strip to tension and pressure simultaneously.

25. An apparatus wherein a continuous strip of record material havingtherein longitudinally spaced configurations is progressively advanced past a strip severing position and there transversely divided into a succession of individual sheets, including an intermittently operative strip severing device, actuating means for operating the severing device at timed intervals to sever successive terminal portions from the strip, means for subjecting the strip to tension coincident with the operation of the severing device, a strip feeding device having positive engagement with the longitudinally spaced configurations of the strip for advancing the strip in timed relation with the operation of the severing device, the construction and arrangement being such that the strip feeding device and the strip severing device are so synchronized that predetermined longitudinally spaced transverse lineal portions of the strip are presented in registry with the strip severing position simultaneously with the operation of the strip severing device. 26. An apparatus wherein a continuous strip of record material having therein longitudinallyspaced configurations is progressively advanced past a strip severing position and there transversely divided into a succession of individual sheets, including an intermittently operative strip severing device, actuating means for operating the severing device at timed intervals to sever successive terminal portions from the strip, means for subjecting the terminal portion of the strip to tension coincident with the operation of the severing device, a strip feeding device having positive engagement with the longitudinally spaced configurations of the strip for advancing the strip in timed relation with the operation of the severing device, and a slitting device for longitudinally dividing the strip progressively with its advancement, the construction and arrangement being such that the strip feeding device and the strip severing device are so synchronized that one portion of the slit strip is transversely divided at predetermined spaced intervals into individual sheets of predetermined size.

27. In an apparatus for trimming and transversely dividing a continuous strip of record material having longitudinally spaced configurations into individual sheets, a positive strip feeding device having engagement with relatively spaced configurations of the strip to advance the strip, a strip dividing device intermittently operable in timed relation with the advancement of the strip-to transversely divide the strip in accordance with the degree of advancement thereof, and including means for subjecting the strip to coincident tension and pressure, and a trimming device for removing from the material the feeding configurations thereof, the construction and arrangement being such that the dividing device and trimming device cooperate to produce individual sheets of uniform size.

28. In a strip feeding and severing apparatus, strip feeding means for positively advancing a continuous strip of material having at longitudinally spaced intervals transverse weakened di-- vision lines through successive measured distances to present succeeding transverse division linesin strip severing position, a pressure blade intermittently engageable with the strip substantially coincident with succeeding spaced transverse weakenedlines while positioned at strip severing position, and clamping means engageable with the strip in proximate relation with the positioned transverse weakened division line slightly in advance of the engagement with the strip of the dull pressure blade by which the strip is momentarily held'against the tension induced by engagement of the pressure blade until such tension exceeds the limit of resistance of said transverse weakened line to bursting strain.

29. In a strip feeding and severing apparatus, strip feeding means for positively .advanclng a continuous strip of material having at longitudinally spaced intervals transverse weakened division lines, through successive measured distances to present succeeding transverse division lines in at opposite sides of the transverse weakened line while positioned at strip severing position, and a pressure device exerting pressure upon the strip intermediate the gripping devices to increase the tension of the strip therebetween beyond the resistance of the transverse weakened line to bursting strain.

' 3D. The herein described method .of transversely dividing a continuous strip of material upon relatively spaced transverse weakened lines, including the steps of momentarily holding the strip at opposite sides of a transverse weakened line under sumcient engagement to resist tension strain thereon and subjecting the strip intermediate said held points to increased tension pressure beyond the limit of resistance of the transverse weakened line to bursting strain.

31. An apparatus wherein a continuous strip of material having longitudinally spaced transverse weakened division lines is automatically divided on said lines into a succession of sheets, including a pair of relatively spaced strip engaging devices having feeding engagement with the strip, means for driving one of the feeding devices at an accelerated rate of speed, and means intermediate the engaging devices of the pair for intermittently engaging the strip substantially at a weakened division line and momentarily resisting advancement of the strip by the strip engaging device driven at an accelerated rate of speed, to thereby increase the longitudinal tension of the strip and facilitate rupture of the strip at a transverse weakened line thereof.

32. An apparatus wherein a continuous strip of material having longitudinally spaced transverse weakened division lines is automatically divided onsaid lines into a succession of sheets,

division line within said intermediate portion. 33. An apparatus wherein a continuous strip 4 of material having longitudinally spaced transverse weakened division lines is automatically divided on said lines into a succession of sheets, including a strip feeding device, a strip grasping and tensioning means intermittently engageable with the terminal portion of the strip, and strip engaging means operative in opposition to--the strip tensioning .means to momentarily resist advancement of the strip thereby and tension a terminal portion-of the strip'having therein a transverse weakened division line to facilitate transverse rupture of the strip on said division line.

34. An apparatus wherein a continuous strip of material having therein transverse weakened division lines is automatically divided into successive sheets on said transverse weakened lines, including a strip feeding device, a pair of rolls between which the strip is advanced having peripheral speed equal to the rate of advancement of the strip by the feeding device and intermittently engageable with the strip substantially at each succeeding transverse weakened division line, and a strip grasping and tensioning means intermittently engageable, with the terminal end of the strip simultaneously with its engagement by said rolls for tensioning a terminal portion of the strip having therein a transverse weakened line to faoilitate transverse rupture of the strip at said weakened line upon which the tenninal portion of the strip is divided from the body thereof.

35. An apparatus for dividing a continuous strip of material on longitudinally spaced transverse weakened lines into a succession of individual sheets. including an aligning feed device having positive feeding engagement with the strip, trimming means past which the strip is advanced by the positive aligning feed device by which marginal traction portions are removed from the strip, strip tensioning means to which the trimmed portion of the strip is advanced. by which the terminal portion of the strip is tensioned to facilitate rupture of the strip at a transverse weakened line thereof, and protective means preventing subjection of the aligning feed device to the pulling influence of the strip tenslonlng means.

36. In a sheet severing apparatus wherein a continuous strip of material having therein a succession of longitudinally spaced conflgurations for operative engagement of a positive strip feeding device is divided on longitudinally spaced transverse weakened division lines into a succession of individual sheets, a strip feeding device having progressive engagement with the longitudinally spaced configurations of the strip for positively advancing successive portions of the strip into strip severing position, a relatively spaced strip engaging device having intermittent engagement with the terminal ortion of the strip and tending to advance the strip at an accelerated rate of speed, a strip engaging device intermediate the respective strip feeding devices cngageable with the supply portion of the strip substantially at the initial line of division thereof to resist acceleration of the speed of travel of the supply portion of the strip under influence of the relatively spaced strip engaging device, the construction and arrangement being such that the portion of the strip intermediate the intermediate strip engaging device and the relatively spaced accelerated strip engaging device is subject to tension in a longitudinal direction A by which division on the initial transverse division line thereof is facilitated.

37. In a sheet severing apparatus wherein a continuous strip of material having therein a succession of longitudinally spaced configurations for operative engagement of apositive strip feeding device is divided on' longitudinally spaced transverse weakened dlvision lines into a succession of individual sheets, a strip feeding device having progressive engagement with the longitudinally spaced configurations of the strip for positively advancing successive portions of the strip into strip severing position, a relatively.

tively spaced accelerated strip engaging device is subjected to pressure in a vertical direction and to tension in a longitudinal direction by which division on the initial transverse division line thereof is facilitated.

38. A strip feeding and dividing apparatus wherein a continuous strip of material having longitudinally spaced weakened transverse division lines therein is progressively advanced past a strip severing position, strip feeding means having operative engagement with the strip for advancing the strip in timed relation with the strip severing Operation, strip tensioning means for subjecting a portion of the strlpcontiguous to a transverse weakened line to tension to facilitate transverse rupture of the strip coincident with such transverse weakened line, and gripper means in advance of the strip feeding device and rearwardly of the strip tensioning means for momentarily clamping the contiguous portion of the strip in opposition to the tensioning influence while tension. is being applied to the strip and then releasing the strip.

39. In a strip feeding and severing apparatus, a strip feeding device for advancing a continuous strip of material having longitudinally spaced transverse weakened lines into a strip severing position, relatively spaced strip engaging members having intermittent simultaneous engagement with the strip at opposite sides of a transverse weakened division line thereof, including a pair of rollers engageable with the terminal portion of the strip and having peripheral speed greater than the speed of advancement of the strip by the strip feeding device, and a clamping device engageable with the strip substantially at the weakened line thereof.

40. An apparatus for dividing a continuous strip of material on longitudinally spaced transverse weakened lines into a succession oi. individual sheets, including an aligning feed device having positive feeding engagement with the strip, a strip engagin e e spaced from the aligning feed device and operative at increased speed, engageable with the terminal portion of the stripin spaced relation with the first feed means beyond a transverse weakened division line of the strip and coacting with the strip to exert advance movement thereon, and protective means preventing subjection of the feed means to the pulling influence of the second engaging means.

41. A strip feeding and dividing apparatus wherein a continuous strip of material having longitudinally spaced weakened transverse division lines therein is progressively advanced past a strip severing position, strip feeding means having positive engagement with a marginal portion of the strip for advancing the strip in timed relation with the strip severing operation, a trim- 'ming device for removing from the strip the marginal portion engaged by the feeding device, means for tensioning the strip beyond the tensile resistance of the strip coincident with the transfrom the tension influence upon the'strip.

42. In a strip feeding and dividing apparatus, a strip feeding device having positive engagement therewith to advance a strip having therein a succession of longitudinally spacedtranverse weakened division lines past a severing position, strip tensioning means, a strip gripper intermittently effective on the strip and interposed between the tensioning means and the strip feeding means, and common actuating means therefor operating the feeding device, gripper and tensioning means in timed sequence, the construction and arrangement being such that the strip is intermittently tensioned coincident with succeeding transverse weakened lines beyond the tensile resistance thereof while being held by the gripper in opposition to such tensioning influence whereby the portion of the strip engaged by the feeding device is not subject to the tensioning strain.

43. The herein described method of dividing a continuous strip of record material upon longttudinally spaced transverse weakened division lines into a succession of individual sheets, including the steps of progressively advancing the terminal portion of the strip having therein a transverse weakened line, past a severing position, grasping the advanced portion thereof at opposite sides of the transverse division Zine, applying pressure substantially perpendicularl: to the plane of the grasped area of the strip and substantially coincident with the transverse weakened line, and subiecting the terminal portion of the strip beyond the weakened line to accelerated advancement.

CERTIFlCATE OFVCORRECTION. Patent No. 2,252,755. August 19, 1.91 1.

JOHN Q. SHERMAN, ET AL.

It is hereby certified tnaterror appears in the printed specification of the aboire numbered patent requiring correction as follows: Page 2, second column, lir le 65, for "mor" read -more-; page 5, second column, line ii, for "59 read --29-; page 5, first column, line 50, claim 10, after "me.- terisl insert "having preformed longitudinally spaced transverse weakened division lines-;; line 51, same claim, after "upon" insert i P 6, first column, line 17, claim 16, for "subection" read subjection; and that the said Letters Patent should be reedwith this correction therein that the same may conform to the record oi the case in the Patent Office.

Signed and sealed this 21st day of October,- A. 1).. 19m.

Henry Van Arsdale, Acting Commissioner of Patents..

Referenced by
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Classifications
U.S. Classification225/4, 225/94, 83/139, 83/94, 83/674, 83/26
International ClassificationB41L1/08, B65H35/00, B65H35/10, B41L1/00
Cooperative ClassificationB41L1/08, B65H35/10
European ClassificationB65H35/10, B41L1/08