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Publication numberUS2202883 A
Publication typeGrant
Publication dateJun 4, 1940
Filing dateDec 15, 1937
Priority dateDec 15, 1937
Publication numberUS 2202883 A, US 2202883A, US-A-2202883, US2202883 A, US2202883A
InventorsYoder Leonard A
Original AssigneeYoder Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for operating on coiled sheet material
US 2202883 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

June 4, 14940. L. A. YODER l2,202,883

APPARATUS Fon @mamma oN coman SHEET MATERIAL Filed Dec. 15, 1937 4 sheets-sheet 1 J ATTORNEY.

BY hn-vm June4, 1940. 2,202,883


Filed Dec. l5, 1937 4 Sheets-Sheet 2 l mm.

Pyflvl. X



Jime 4,1940. L'. A. YQDER* y 2,202,883



June 4, 1940. L.. A. YODER- 2,202,883



Patented June 4, 1940 PATENT oFF-ICE APPAR'ATUS FOR OPERATING 0N SHEET MATERIAL COILED Leonard A. Yoder, Lakewood, Ohio, assignor to The Yoder Company, Cleveland, Ohio, a corporation of Ohio Application December 15. 1937, sei-iai No. 17am 1 claim; (ci. 24a-55) This invention relates to lapparatus for operating on sheet material which is handled in vcoil form; that is, the material is supplied to or mounted on the apparatus in wound up or coiled form and'then conducted to and through an operating mechanism and re-wound or re-coiled, whereupon itis removed from the apparatus.

The apparatus herein disclosed has been applied by me to sheet metal, but it is obvious that the apparatus may be used for other kinds of materials.-

One object of the invention is to provide an improved apparatus of this type wherein provision is made for loading or mounting on the apparatus a'coil of material which is to be operated upon and unloading or removing therefrom' another coil of material which has been finished, during the operation of the apparatus on one coil, whereby both time and labor are saved.

Another object of the invention is to provide an apparatus of this type which is relatively simple and readily operated. l

Other objects of the invention wili be apparent to those skilled in the art towhich my invention relates from the following description taken in connection with the` accompanying drawings, wherein Fig. 1 is a plan view of an apparatus embodying my invention.

Fig. 2 is a section on the line 2--2 of Fig. 1.

. Figs. 3, 4 and 5 are sections on the lines 3 3, 4-4 and 5-5, respectively, of Fig. 2.

Fig. 6 is a section on the line 6-6 of Fig. 1.

Fig. 7 is a section on the line 'I-"l of' Fig. 6.

Fig. 8 is a section on the line 8-8 of Fig. '7.

Fig. 9 is afragmentary section on the line 9-9 '0f Fig. 6.

Fig. 10 is a section yon the line III-I0 of Fig. 9. Fig. 11 is a fragmentary plan view showing a.

ymodiiied form of construction.

In the drawings, indicates as an entirety a mechanism for loading one coil of material A and simultaneously uncoiling a separate coil of material. 2 indicates as an entirety a mechanism for operating on the material as it uncolls'from the mechanism l|. 3 indicates a mechanism for re-coiling the material as it feeds from the operating mechanism 2 and supporting the previously re-coiled material and permitting the unloading thereof while the coil of material being operated upon is being re-coiled.

Of the mechanism I. 4 indicates a suitable base supporting an upright shaft 5 on which rotates a head 5, the head resting on' the upper end of the base and held thereon by a cap plate 1 suitably bolted to 'the upper end of the shaft 5. By

preference, the base 4 and` shaft 5 are integral,

as will be understood from Fig. 5. 'I'he head 5 is provided with a plurality of hollow, radially extending bosses 8, into each of which is fltted` the 5 inner end of a shaft 9 carrying on its outer end a collapsible drum, indicated as an entirety at I0; I have, in Figs. 1 and 2, shown two shafts 9, each carrying a drum, in diametrical relation, but it will be obvious that provision may be made for a larger number of shafts each carrying a drum,l if desired. For sake of clearness in the description the drum in operative position is designated I0 and the other drum is designated I Il. Provision is made for locking the head 6 in predeterl5 mined operative positions, wherein each of the drums I0, I0', may be alined with the mechanism 2. By preference I provide a clamping-means and a registering means I2, to secure the head in each operative position. The clamping means consists in splitting the wall of the head C, as shown at ISfand providing on the wall at opposite sides of the split I3 devices capable of contracting the wall into engagement with the shat 5. The clamping devices consist of the following: I4 indicates a pair of integral lugs on the Wall of the head 6 at one side of the split and formed with openings through which extend bolts I5 having heads, preferably consisting of nuts I6 threaded on their outer ends, arranged to engage the outer sides of the lugs I4. The inner ends of the bolts I5 terminate in collars I1, the innerwalls of which form bearings for eccentrics I8 fixed to a shaft I9, which is rotatably supported in hollow bosses 20 formed integrally on the wall of the head 5 on the-other side the split I3. The shaft I9 is provided with tool engaging means for rotating it and the eccentrics. such rotation serving to draw ther walls of the split I3 together to clamp the head 5 to the shaft. The nuts I6 are preferably adjusted on the bolts I5 so that when the throw of the eccentrics I8 is in Iline with the axes of the bolts I5, the head 6 is clamped to the shaft 5 and the eccentrics being on dead center the shaft I9 is held against rotation and release of the head 5. The registering means I2 consists of 'the following: 2| indicates openingsformed in the lower end of the head 6, each corresponding to the operative position of one of the drums III. Each opening 2| is arranged to receive a plunger 22 when brought into registry therewith, the plunger beingslidably supported in an opening 23 formed in the olf-set portion of the base I. The plunger 22 is normally 'Jrg'ed upwardly into the openings 2| by 55 a coil spring 24 interposed between it and a portion of the base 4, such base portion being provided with an up-standing pin 25 which projects into the lower end of the spring to maintain it in position. The plunger 22 is providedwith oppositely disposed, lateral pins 25, which are engaged by the bifurcations on one vend of a bellcrank 21, the opposite end of which is pivoted to one arm of a foot pedal 28, the bell-crank 21 and pedal 28 being suitably fulcrummed on the base 4 (see Figs. 2, 5 and 6). As will be understood from Fig. 5, application of pressure downwardly on the outer end of the pdal 28, will effect a withdrawal of the plunger 22 from the adjacent opening 2|, following which the head 8 may be rotated to bring theeother drum l into operative position (provided the clamping means have been operated to unclamping position). The pedal 28 is fixed to its fulcrum 28, one end of which is extended to support a latch .38. The latch 30 is adjustably fixed to the fulcrum 29 by a set screw 30a (Fig. 4.) The latch 3U is adapted to be engagedandlocked by a shoulder on one arm 3| of a pivoted detent 3| a, the other arm 3|b of which serves as a foot pedal to release the detent arm 3| from the latch 30, The arm 3| is normally biased into latch locking position by a spring 30m. The lower side of the latch 30 adjacent its outer end is beveled or rounded (see dotted lines in Fig. so that .when the pedal 28 is forced downwardly to withdraw the plunger 22, the latch 38 rides the detent arm 3| to permit the shoulder on the outer end of the latter to engage the upper side of the latch, the effect of which is to lock the latch 30 against return movement under the influence of the spring 24 and hold the plunger 22 in retracted position. To release the latch 30, downward pressure is ap plied to the detent arm or pedal 3|b to release the latch 39, whereupon the spring 24 will move the plunger 22 upwardly.

The drums I0. are adapted to receive coils of material A and support them while the material of one coil is being un-coiled; that is, one drum is loaded with a coil of material and then the head 6 is rotated to position the drum and coil thereon in operative relation to the operating mechanism 2, as shown at I0 (Figs. 1 and 2); while the material of that coil is uncoiling, a separate coil of material is loaded on the other drum |0'; then when the material on drum I8 has been uncoiled and delivered therefrom, the head 6 is rotated to position the drum l0' in operative relation to the mechanism 2 and while the material of the coil thereon is uncoiling a separate coil of material is loaded on the drum I0. For this purpose, each drum comprises a shell 32 formed with spaced, longitudinally extending openings 33, in each of which a member 34 operates radially. With the members 34 in retracted or collapsed position, a coil A may be positioned on the shell; the members 34 are then operated or expanded radially simultaneously, the effect of which is to engage the inner convolution of the coil A and accordingly secure the coil to the drum. .The inner end of the shell 32 is provided with an inturned flange integrally connected to a'ring 35. The ring 35 is sweated onto a collar 36 which rotatably supports the inner end of the drum on the adjacent shaft 9. The collar 36 is held against the outer end of the adjacent boss 8 by a ring 36a xed'to the shaft 9 by a suitable set screw (see Fig. 2). The collar 36 is preferably integrally connected to a disk 31, the marginal Portion of which is provided with an annular wall forming a brake drum 38 for a brake band 39. One end of the band 39 is normallyxed, as later set forth, whereas its opposite end is connected to a rod 40, which is adapted to slide endwise in an opening formed on the outer end of a rod 4|, the latter being supported by a projection 42 formed integrally with the adjacent boss 8. The outer end of the rod 40 is provided with a head 43 (preferably consisting of a nut threaded -on the rod and a lock nut 43a therefor), between which and the rod 4| is provided an expansion spring 44, coiled around the rod and adapted to normally exert tension through the rod 48 on the brake band 39 to eect a predetermined frictional engagement with the drum 38, whereby the rotation of the adjacent drum I8 is retarded during the'uncoiling of the material therefrom. By adjusting the head 43, the braking effect of the band 39 on the drumr`38 may be readily inincreased or decreased. The normally fixed end of the band 39 is releasablyconnected to the projection 42, whereby the vband may be disengaged from the drum 38 when it is desired to permit the drum I0 to freely rotate on its shaft. For this purpose, the end of the band 39 remote from the rod 40 terminates in a loop or eye 44',

-which receives a pin 45. The pin 45 is mounted eccentrically on a disk 48 fixed to a shaft 41, the latter being mounted in an opening 48 formed in the projection 42. The disk 48 is provided with a handle 49, whereby it may be rotated, the operation of the handle 49 to the position shown in dotted lines in Fig. 3 serving to move the pin 45 about the axis of the disk and thus effect a release of the brake band 39 from its drum 38.

The disk 31 is provided with a plurality of radially extending slots 50, one for each expansible element 34. The rear end of each element l34 is provided with an extension 5|, which extends through the adjacent slot and is provided on the outer side of the disk 31 with wings 34a which co-operate with the inner end of the member 34 to slidably connect the latter to the disk for guided movement radially outwardly and inwardly.

The outer end portion of the shell 32 is preferably provided with a conically shaped wall 32a to facilitate loading of the coils of material thereon and an inwardly extending, annular wall 52, which is concentric to the drum axis and is adapted to slidably mount the outer end of a sleeve 53. on the shaft 8 to support the outer end of the drum |8 thereon. The outer end of the sleeve 53 is provided with an end wall 54 formed with an axial opening in which is xedly mounted a nut 55. A screw 56, which is threaded through the nut 55, is connected to a shaft 51 rotatably mounted in an opening formed in a cap plate 58, the latter being suitably secured to the shell 32 at the outer end of the wall 52. 'The outer end of the shaft 51 is shaped to take a suitable tool or crank (not shown) whereby it may be rotated. The shaft 51 is provided with collars 59, 59a, disposed on opposite sides of the cap plate 58, and serve to prevent endwise movement of the shaft 51 when rotated, whereby rotation of the shaft 51, through the screw 56 and -nut 55, will effect endwise movement of the sleeve 53. As the sleeve 53 is connected by pairs of links 6l to the expandible members 34, and the latter are' guided for movement radially, as already set The sleeve 53 is rotatably mounted i forth, movement of the sleeve 53 endwise in one 75 direction will move the members 34 outwardly andthe endwlse movement of the sleeve .53m the opposite direction will retract or move'the members 34 inwardly. In the arrangementof the links 60.'as' shown in Fig. 2.4 endwise movement of the sleeve 53 inwardly serves to expand the members 34. l

The mechanism 2 shown herein for illustrative purposes for operating-on the material A while it is feeding from an uncoiling drum I0 or I0' to are-coiling-drum |01: orl0x' of the mechanism 3, consists of a slitting mechanism which lmay be substantially similar to that shown in the application for Letters Patent Ser. No. 12,818, filed March 25, 1935, by Qarl M. Yoder, of Lakewood, Ohio, now Patent N. 2,160,9 99 of June 6,;1939, but it willbe understood` that any other type of mechanism for operating 'on the material may be employed; for examplefdevices for polishing the surface of sheet metal, mechanism for leveling the material or punching elements for various kinds of sheet material. In the form of construction shown, the mechanism 2 is provided with four sets of slitting elements 6I, 6I mo'unt-A ed on upper and lwer shafts 62 suitably mounted in standards and drivemby a motor 63, whereby the material Als slit intothree strips a; .but it will be obvious that the number of slits and width of the strips may be variedat will. As shown,

the slitting elements 6|' serve to trim the longitudinal edges of the vmaterial A, the resulting trimmed off edges being deflected downwardly by suitably mounted rolls Ela, whereas the slitting elements 6|, serve to slit the intermediate portion of the material. The strips a are fed or deliveredto one of the drums |035. |0x, of the mechanism 3 for re-coiling, as later set forth.

The mechanism 3 consists of a base 4 supporting a shaft 5', on which rotates a head 6', held in position by a cap 1'. The head 6 is provided with diametrically arranged hollow bosses 8' in which are fixedly mounted the inner ends of shafts 9'. These parts are substantially similar to like parts' of the uncoiling mechanism I. Each shaft 9 rotatably supports a drum, one drum being -idesignated |03: and the other drum |032'. The head 6 is held in predetermined positions each corresponding to the operative position for one of the drum |0:r, I0x, by clamping -means Il' and registering means I2', each said means being preferably similar inconstruction to that heretofore described, like parts of each lof said means shown in Figs. l, 6 and '1 being designated by the same reference characters,

respectively. I

Each re-coiling drum 10x, |032', comprises the following: 64 indicates a body or hub member rotatably fitting the adjacent'shaftw9' and heldthereon by a cap 65 suitably bolted' to the outer end of the shaft.J ,66 indicates a clutch element suitably fixed to the outer end of the hub member 64, axially thereof, and adapted to be engaged by and disengaged from a clutch element 66a, which is drivingly connected to a power mechanism, indicated as an entirety at 61, later referred to. The clutch element 66 is recessed on itsinner side to enclose the cap 65 and also cut 12a`and a collar or enlargement on the inner end 'the axis of the drum, said rods 19 being guided the outer face of the disk.68 is provided with an 5 annular-ratchet 69 adapted to be engaged by a pawl 10 to-prevent rotation of the drum in the strip unoiling direction, bt permits rotation thereof in the r'e-coi'ling direction. The pawl 10 isinounted on the inner end of a rod` 1| which is rotatably and slidably mounted in an opening 12 formed ina lug 12a on the adjacent. boss 8', a coil spring 13 being interposed'between the lug portionmf ,the rod 1I and normally tendingvto project the latter into engagement with the ratchet 69. One side of the rod 1| is provided with awng 14- which fits into4 an olf-jet recess leading from the opening 12. The wing 14 when lying in the recess as shown in Fig. 10, prevents the -rod 1| from rotating and insures a predetermined operative relation of'nthe pawl 10 with respect to the ratchet 69; but by retracting the rod 1-l against the tension of the spring 13 by means of ahead 11a onits outer end and then rotating the rod a short angular distance, the wing 14 may be lengaged with the outer face of the lug 12a, whereby the pawl 10 is held clearv of the ratchet 69 to permit rotation of the drum 10a: in either direction. Such free rotation of the drum may be desirable to facilitate tying and unloading or "removing each coiled strip a from the drum. The 'shell of the drum |01: consists of a stationary arcuate section 15 formed integrally with the -hub member 64, arcuate side sections 16valongeither side of the section 15 and pivoted thereto by related .knuckles 11 (see Fig. 8) and anintermediate movable section 18 provided with pairs of depending rods 19 'disposed upon opposite sides of and parallel to a radius of in openings 60 formed in the hub member 64, to permit the intermediate section 18 to move radially voutwardly and inwardly. The opposite side edges of the section 18 are inclined, downwardly and outwardly (see Fig. '1) and disposed in sliding lengagement with the outer edges of the side sections 16, so that when the section 18 is moved outwardly, by means later referred to. it simultaneously swings thesections 16 about the axes of the knuckles 11, whereby the drum is expanded, and when the section 18 is moved inwardly 4the sections 16 are free to swing inwardly under the influence of a spring (which is connected at its opposite ends to bolts 8l carried by the sections 16), whereby the drum is collapsed. The sections 16 and 18 are so arranged that when the latter is moved outwardly to the limit of its movement, the sections 15, 16, and 18 are substantially 'concentric to the axis of the; drum, in which position the sections are arranged when recoiing of the strips a thereon takes place. By collapsing the sections as above set forth the re-coiled material may be readily removed. The means for moving, the drum section 18 outwardly consists of the following: the opposite ends of the hub member 64 below the section 16 areprovided with upwardly and inwardly inclined surfaces 82 andin opposed relationfto each surface 82 the section 18 is provided with a reversely 7 inclined surface 83. 84 indicates a wedge block arranged between each said two related surfaces 82, 83 and having sliding engagement therewith. The wedges 84 are formed with alined threaded,

through openings, one right-hand threaded and v,


4 escasas the other left-hand'threaded, adapted to receive `correspondingly threaded portions adjacent the opposite ends of a shaft 85, the rotation of which in one direction serves to move the wedges 84 toward each other, the effect of which is to move the sections 18, 16, outwardly and rotation of the shaft 85 in the opposite direction serves to move the wedges away from each other, whereby the section 'i8 is free to move downwardly (which lo movement will take place normally by reason of the inward pressure of the re-coiled material) and permit inward movement of the sid'e sections 16. As shown in Figs. 6 and 8, the outer end of the shaft 85 is shaped to take a suitable tool or 15 crank (not shown), whereby it may be readily rotated in either direction.

The power means 81 is shown as comprising a motor 86, the shaft of which through a suitable reduction gearing 8T, drives. a shaft 88, disposed 20 axially of each drum 10x when in its operative position, the shaft 88 in turn being providedl with a sleeve 89, which slides on the shaft but is keyed thereto. The outer end of the sleeve 89 is provided with the clutch element 66a, which is arranged to engage the clutch element 86 when the sleeve is moved outwardly. The sleeve 89 is provided with a pair of straps in which are formed elongated openings at diametrically opposite sides of the sleeve, these openings being arranged to receive inwardly extending pins provided on the arms of a yoke 90, which is preferably pivoted at its lower end on the block 92 fixed to the flooring, the upper end of the yoke being provided with a handle 93, whereby it may be 35 operated from one position to its other position.

Operation: the drums I0, I0', are collapsed and a coilof material is mounted on the drum I8, which is then expanded. The head 8 is rotated to dispose the drum I0 in operative position (Fig. 1), as indicated by the dotted line 1:. The mao terial A'is then positioned and fed through the slitting elements and the free ends of the strips a bent laterally (as shown at a') and inserted in a groove or recess 94 formed in each drum wall section 'I5- of each drum I 8.1:, with spacing rings 95 between them, therebyl connecting the strips a to the drum. The clutch element 66a is connected to the clutch element 66 and the motor 81 started. Fig. 1 shows a coil of material a portion of which has been uncoiled from the 5 drum I0 and coiled on one of the drums |0x; also the positioning of a separate coil A on the drum I0 while the material of the coil on the drum l0 is uncoiling therefrom. When the' material on drum I0 has been completely uncoiled, the il head 6 is rotated to dispose the drum I0' in operative position,the `free end of the material thereon connected to one of the drums l8r and while uncoiling takes place, a new coil of material is positioned on the drum I8. 'I'he drums 00 Im are operated in the reverse manner, since the material is re-coiledl on each thereof and removed. Fig. 1 shows the drum |012 loaded withl the coiled strips a thereon, and ready to be removed while re-coiling takes place on the drum lnx. Each coil of strip material, before removal, may be tied with one or more wire loops (indicated in dotted lines at a() for which purpose each of the drum sections 16 is formed with a 5 groove 96 to permit the wire a" tobe threaded around the coiled strip.

It will be understood that the drums for the uncoiling mechanism may be similar in construction to that of the drums for the re-coiling mech- 10 anism, yor vice versa, but in the preferred ar rangement the uncoiling drums are shaped on their outer ends to form a .guide for the coil in positioning it thereon, whereas the re-coiling drums are arranged to provide for the applical5 tion of power to their outer ends; but obviously the power means forv rotating the re-coiling drums may be mounted on the head 6'; also, each head 6, 6', may be arranged to support four shafts each supporting a drum I0", as shown in Fig. 11. In I0 the broader aspects of my invention, the number of drums mounted on one rotatable head may be greater than the number of drums on the head. since it is not necessary for the heads to support the same number of drums..

To those skilled in the art of making appa ratus of the class described, many alterations in construction and widely differing embodiments and applications of my invention will suggest themselves, without departing from the spirit In and scope thereof. My disclosures and the description herein are purely illustrative and are Anot intended to be in any sense limiting.

What I claim is:

In apparatus of the class described, the combiu nation of a head, a plurality of shafts rigidly mounted at their inner ends on said head in angular relation, an expansible drum rotatably mounted on each of said shafts and adapted to receive a coil of sheet material, 4said head being rotatably mounted whereby each of said drums may be swung to a predetermined position to permit the uncoiling of the material therefrom, a separatev head spaced from said first mentioned head, a plurality of shafts rigidly mounted at a their inner ends on said separate head in angular relation, an expansible drum rotatably mounted on each of said shafts and adapted to re-coil the material thereon, said separate head being rotatably mounted, whereby each of said last menn tioned drums thereon may be swung to a predetermined position in alinement with the rst mentioned,predetermined positioned drum,means for locking each head in each predetermined positon; separate means between the separate heady u and the inner end of each re-coiling drum for preventing the latter from rotating in the uncoiling direction, means between the first mentioned head and the inner end of each un-.coiling drum for retarding the rotation of the lat- .o ter, and power means arranged to be detachably connected to the outer end of each re-coiling drum when it is in re-coiling position.


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U.S. Classification242/533.6, 242/573.5, 242/574.4, 242/530.1, 242/559.2
International ClassificationB21C47/24
Cooperative ClassificationB21C47/245
European ClassificationB21C47/24B