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Publication numberUS811270 A
Publication typeGrant
Publication dateJan 30, 1906
Filing dateNov 21, 1904
Priority dateNov 21, 1904
Publication numberUS 811270 A, US 811270A, US-A-811270, US811270 A, US811270A
InventorsHenry F Bechman
Original AssigneeDuplex Printing Press Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Web-looping mechanism.
US 811270 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

PATENTBD JAN. 30, 1906.




cylinder vaehq rintiug iriiov.

DUPLEX Pltlhlllihlli Illtltilfd .Eipecification of Letters Itatent.

Patented. Jan. 30, 1906.

Application filed November 21,190l. Serial No. 263,639.

To (all whom, 11!; may concern:

Be it known that l, HENRY F. BECHMAN, of Bzittlecreek, in the county of Call'ioun and State of iiliehigan, have invented certain new and useful improvements in l lelrliooping Mechanism; and I hereby declare that the lolhiiwiug is e. lull, clear, and erect descrip tion there of reference being had. to the accom" panying drawings, which form part oi this specification.

This invention is an improvement in vvchmanipulating mechanisms especially adept ed for imparting intermittent movements to parts oil in otherwise oontinually running web, and particularly designed for use in eonhectimi with :-.=tationarybed reoigirocatingv resses, known to the trade as duplex We" -perl'ecting llet-loed presses. The invention, however,is also use 'l'ul in connection with other machines o eratiiig upon webs.

The object of the present invention is to reduce the eccentricity of the looper-eams and slow up and lessen the movement of the loopingewllers b increasing the number of the lUUllllllii lOllQ-li and moving the upper and lower orientingliiopers in opposite directions.

"he invention oonsists in the novel eoIistruction end eombinations oi parts hereinafter dos r hed ltlltl elaimed.

in the eeeoiupauyiug drawings, Figure 1 is a diagrammatieal longitudinal section through a duplex weh-periecting llat-bed pres with my inigrovcd velwloopiug devises. his; 3.1mm on] ri'ced sectional v ew oi' the looping merhzi-nism nourished. l ig. 2: is a. similar vice: of a modified construction oi the looping miwhduislu; ilio. i, is a detail.

The r pe-beds t it" and their coacting cylinde s ll ll, we: ruidesfm m, wch-reeding n 1 es h a n lr l u l; in d we he el ivo v' meol'ianism 0 may be 'oiiwll'uizletl and o eted like similarly-lemmal parts in the Les. patent, No. 478,502 oi July 5, 1892. The looping de vices may be operated by roiviprocaiing bars ll lovers and owns 1 as in iloxs patent, No. 501 ,=i:3(3, oi J uly 1 'l 1893, and need no further oxph-imdiou h u-i-.i1 .,'the operation being such that the web it is led into the press continuously by the rolls K and delivered out th press commune by the rolls (1), and the part oi the iirb in the press is alternately stopped during the prii'ztiiu and then moved of the wehdoopiugg; devices between the feed and deliver said looping devices taking 11 J the Web for? in by rolls ll and giving up We to the rolls 0 during each printing 0 )eration and thereeiter quiolii' shifting t 1e Web forward all. substantial y as described in said patents.

As shown, a number of lower loopiug-rollers 1 '2 El and a corresponding nun'iher of upper loopiug rollers 4i 5 (i may be mounted on trensverse oross pleees L U, attached to bar L. The rollers l 2 3 are parallel and in a plene at right angles to the line oi movement of hair L, and the rollers 4 5 6 are similarly disposed above the others.

Below the rollers il 2 3 are cooperating rollers l. 2 3, and shove the rollers 4 5 (5 are coasting rollers i 5 6. All the rollers l 2 3 i 5 6 are supported on a movable frame or plate 7, which is movable parallel With bar L and is mounted in any suitable guides on the main fro-maul the machine. Frame '7 may get motion from bar L, but is moved oppositely thereto, so that the rollers 1 2 3 move oppositely to their coecting rolh ers 1 2 3, and, siiiiilarlvthe rollers 4- 5 6 move oppositely to their coasting rollers 4' 5 (5;

The desired opposite movements of the bar L and frame '7 may be imparted in various ways. in Fig. l the frai'ne 7 has a depending toothed part 'i (see Fig. 2) opposite a similarlytoothed part L on her L, and a pinion S, jourualed on s fixed stud 8, meshes with said toothed. parts on its opposite sides, so that the motion. of one gives a contrary movement to the other. In Fig. 3 the same result is obtained by means of an oscillating lever 9, pivoted on. a stationary fulcrum 9", one end of said lever being connected at 9 with the bar L and the other end of the lever being oonuectedat 9 to the lower endof alink h, attached to frame 7, so that the movement ol bar ii in one direction imparts an opposite motion to frame sets oi" rollers; but it is obvious that this is not essential and that the connections mav be arranged so as to impart diil'erent relative movements to the her and fran'i'e.

it should be uncharstood that the her and frame are dupliceted at eeoh side of the press,

forward with greater ra )iditv b T the action &) I

I prefer to give equal movements to both.

so as to properly support the rollers at each end. As shown, the roller 3 is arranged be low the plane of rollers 1 2 and performs the oliice of the stationary guide-roller ordinarily employed in the duplex machine, (shown at M in Coxs patent, No. 478,503.) Roller 4 also performs the o'llice of the stationary guide-roller ordinarily employedin the duplex press, (shown at M in said Cox patent.)

The Web is fed in b r rolls K, then looped over roller 1, under roller 1, over roller 2, under roller 2, over roller 3, under roller 3, and passed forward through the printing mechanism, as in the Cox patent. Returning, it is looped over upper roller 6, under roller 6, over roller 5, under roller 5, over roller 4, under roller i, and then passed to the delivery O. This construction gives three upper and three lower loops in the Web, whereas in the ordinary duplex press but one upper and one lower loop is formed. This increase in the number of loops reduces the ordinary travel of the looping-frame two-thirds, and this travel is further reduced by making the rollers move in opposite directions, and if they move equal distances the travel of the loop ing-frame and rollers is reduced toone-s ixth the travel required in an ordinary duplex press while the same amount of web is taken up and given off. This lessened throw of the frames correspondingly reduces the eccentricity or throw of the cam, which desirable.

The movement of the rollers in opposite d irections also balances or tends to equalize the strain on the equalizer-cams or the weight of the rollers thereon, so that the movement is easier and more uniform in both up and down movements of the equalizer-levers.

I do not confine myself to the employment of any particular number of op ositely-mov ing looping rollers, nor to tlie particular mechanism for operating them in opposite directions shown in the drawings, except specifically mentioned in some of the claims which follow.

Having thus described my invention, h at I claim as new, and desire to secure by Letters Patent, is

1. In web-looping mechanism, the combination of a plurality of pairs of oppositelymovin rollers each pair of rollers cooperating to lorm a loop in the web, the web being directed over and under opposite rollers in alternation and means for operating said rollers. v

2. The combination with web feeding mechanism of two adjacent sets of web-rollers movable in opposite directions, the web being directed over and under the oppositelymoving rollers in alternation to form loops in the web, substantially as described.

3. The combination of two adjacent series of webr'ollers, the web being passed alternately over and under the successive rollers in each set; with means for simultaneously moving the sets oi -rollers in opposite directions to form loops in the web, substantially as described.

4. In a web-manipulating mechanism, the combination of oppositely-moving devices, adjacent looping-rollers respectively mounted on said devices, the web being directed over said rollers in. alternation, the opposite looping-rollers coacting to form a loop in the web, substantially as described.

5, in a web-manipulating mechanism, the combination. of oppositely-moving devices, a plurality of pairs of looping-rollers mounted on said devices,ea(-h pair of oppositely-moving rollers counting to take up or give out a loop of web, and means for operating said devices.

6. in combination menus lor feeding and delivering a web, a webdooping mechanism intermediate the feed and delivery devices, comprising oppositely-moving rollers, coac-ting to alternately take up and give oil a loop of web the web being directed over and under the opposite rollers in alternation, substan tially as described.

7. in combination a movable support, a looping-roller thereon, an adjacent movable support, a limping-roller thereon, and l'ncans 'wherebv one support moves the other in an opposite direction, said looping-rollers coacting to erm a loop in the web, substantially as mounted on a movable support, two other looping-rollers coaeting with the first-mentioned looping-rollers to form loops in the web and mounted on a second movable support; with means for moving the said supports simulianeously but in opposite directions, for the purpose and substantially as described.

9. in combination web-lending-in devices and web-delivery devices with. web-looping mechanism intermediate the iced and delivery devices, comprising two looping-rollers mounted on a movable support, and two other adjacent looping-rollers mounted on another adjacent movable support and cooperating with the first-mentioned rollers to form loops in the web, and means for simultaneously moving said supports in opposite directions, substantially as described.

10. In combination means for feeding and delivering a web, a web-looping mechanism intermediate the feed and delivery, con1pris ing two sets of oppositely-moving rollers, one set taking up loops in the web while the other set gives out loops, the sets taking up and (51in colnl'iination two looping-rollers giving off loops in alternation, substantially moves the other, but in an opposite direction, for the purpose and substantially as described.

12. In combination two sets of loopingrollers mounted on a common support, two sets of loo ing-rollers enacting with the firstmentione sets of looping-rollers, and mount. ed on another common support; with means for movin the supports of the first and sec- 1o 0nd sets 0 looping-rollers simultaneously but in opposite d1rections,. for the purpose and substantially as described.

13. The herein -'described Web looping mechanism comprising two sets of loopingrollers mounted on a common movable suptially as described.

port; and two other sets "of loopin -rollers mounted on another common move le sup- In testimony that i claim the foregoing as my own I affix my signature in presence of 25 two Witnesses.

A HENRY F. BECHIVLMT. In presence of-- CHARLES A. GRAMES, FRANK W. Dim'n'me.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2649867 *Feb 21, 1949Aug 25, 1953Western Electric CoApparatus for advancing filamentary articles
US2765527 *Jul 8, 1949Oct 9, 1956British Insulated CallendersSheathing of electric cables
US4033092 *Jul 25, 1975Jul 5, 1977Multivac Sepp Haggenmueller KgVacuum packaging machine for the production of packages from packaging material webs
US6378750 *Sep 15, 1999Apr 30, 2002Agra Vadeko Inc.Method and apparatus for applying stripes to a moving web
Cooperative ClassificationB65H20/24