US1512967A - Machine for booking sheet-rubber stock - Google Patents

Description

Oct. 28. 1924. 1,512,967

- E. E. WINKLEY MACHINE FOR BOOKING SHEETRUBBER STOCK Fi1ed Jan. 26 1920 9 Sheets-Sheet 1 WITNESS INVENTUR 9 Sheets-Sheet 2 WINKLEY Filed Jan. 26

MACHINE FOR BOOKING SHEET RUBBER STOCK Ot. 2s 1924.

Oct. 28 1924. 1,512,967

E. E. WINKLEY MACHINE FOR BOOKING SHEET RUBBER STOCK Filed Jan. 26 1920 9 Sheets-Sheet 5 a 1 WITNESS it; INVENTOR- W ZWe/mefi Oct. 28 1924.

E. E.-WINKLEY MACHINE FOR BOOKING SHEET RUBBER STOCK Filed Jan. 26 1920 9 Sheets-Sheet 4 INVENTOR @4254 5, W" v f WITNESS Wfl/zver:

Oct. 28. 1924. 1,512,967

E. E. WINKLEY MACHINE FOR BOOKING SHEET RUBBER S TOCK Filed Jan. 26 1920 9 Sheets-Sheet 5 WITNESS INVENTO Fe Wfi/mez 6? W6; ,v

5 VWM Oct. 28 1924. 1,512,967

E. E. WINKLEY MACHINE FOR BOOKING SHEET RUBBER STOCK Filed Jan. 26 1920 9 Sheets-Sheet 6 2 f \g Q VVITNESS I VENTUR Oct. 28. 1924. 1,512,967

E. E. WINKLEY MACHINE FOR BOOKING SHEET RUBBER STOCK Filed Jan. 26 1920 9 Sheets-Sheet '7 WITNESS NVE O Oct. 28 1924.

' 1,512,967 E. E. WINKLEY MACHINE FOR BOOKING SHEET RUBBER ,STOCK Filed Jan. 26 1920 9 Sheets-$heet 8 paw '1 T \/\/ITN E55 i INVENTUR Oct. p

E. E. WINKLEY MACHINE FOR sooxmesnnmr RUBBER STOCK Filed Jan. 26 1920 9 Sheets-Sheet 9 nlllrillllflalll III! lllxlillll ill..-

Patented Oct. 28, 1924,

UNITED STATES PATENT OFFICE.

ERASTUS E. WINKLEY, OF LYNN, MASSACHUSETTS. ASSIGNOR TO UNITED SHOE MA- CHINERY CORPORATION, OF PATEBSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR BOOKING SHEET-RUBBER STOCK.

Application filed January 26, 1920. Serial No. 354,038.

To all whom it may concern: I

Be it known that I, ERASTUS E. IVINKLEY, acitizenot the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Machines for Booking Sheet-Rubber Stock; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to a machine for booking sheet rubber stock.

Sheet rubber stock such, for instance, as stock to be used for the soles of rubber shoes, is usually cut into sheets as it comes from the shaping and calendering rolls and these sheets, which are in a plastic, sticky state, are stacked or booked and allowed to shrink for a suitable length of time before the soles or other blanks are out therefrom. Heretofore the sheets have been stacked orbooked by' manually piling them one above another upon boards and interposing sheets of canvas or other suitable fabric between the sheets to separate their adjacent faces.

It is the primary object of the present invention to automatically effect the booking of the sheet rubber stock, and thereby increase the speed of the operation and reduce the expense incident to the usual hand booking. To this end the invention contemplates the provision of means for automatically stacking sheets of stock and for placing separating sheets of canvas or other suitable material between adjacent faces of the sheets to form a book which may thereafter be handled or manipulated in the usual or any suitable manner.

In embodying the invention in a machine adapted to operate upon a continuous web of stock as it comes from the calendaring or shaping rolls mechanism is also provided for cutting the web of stock into sheets, and the stacking mechanism is constructed to take the sheets from the cutting mechanism and deliver them'one above another upon a booking plate or board, the separator sheets being automatically placed over each sheet or layer of sheets on the board before the stacking mechanism delivers the succeeding stock sheet or layer of sheets.

In some plants the separator sheets for each book or stack of sheets are secured at one end to a rib extending along one side of the booking board, the ends of the separator sheets being spaced to receive the stock sheets between them, and the form of invention which is preferably used in a machine adapted to utilize this form of booking board in booking the sheets is shown in the accompanying drawings.

In the drawings Fig. 1 is an end elevation of the machine, Fig. 2 is a partial end elevation on a larger scale, Fig. 3 is a side elevation looking toward the left in Fig. 1, Fig. 4 isv a similar partial elevation on a larger scale, Fig. 5 is a plan view, Fig. 6 is a detailed plan view showing a part of the cutter mechanism, Fig. 7 is an elevation looking toward the right in Fig. 6, Fig. 8 is a front elevation of the parts shown in Fig. 6, Figs. 9, 10, and 11 are detailed views of one of the stacking grippers. Figs. 12, 13, 14 and 15 are detailed views illustrating the picker mechanism for acting on the separator sheets and Figs. 16, 17 and 18 are detailed views of the gripper mechanism for placing the separator sheets in position over the stock sheets on the booking board.

The machine shown comprises a cutting mechanism for cutting a web of rubber stock into sheets, two sets of stacking grippers for taking alternate sheets from the cutting mechanism and delivering them in pairs side by side upon a booking board, mechanism which acts after a pair of stock sheets have been placed on the board and before the succeeding pair is placed thereon to lay one of the separator s eets over the sheets on the board, and a conveyor for bringing empty booking boards successfully into position to receive the stock sheets and for removing the filled boards.

The cutting mechanism shown is substantially the same in construction and mode of operation as the mechanism shown and described in Patent No. 1,118,460, Nov. 24, 1914, and comprises a continuously rotating drum 2 onto which the web of stock is delivered from conveyor belts 4, and a disk cutter 6 mounted to travel back and forth across the drum and to move with the drum during each cutting stroke. The disk is journaled in a cutter carriage 8 mounted to reciprocate on two transverse guide rods 10 and 12 which are secured in the upper ends of two arms 14 journaled on the drum shaft 16 at opposite ends of the drum. The cutter carriage is moved transversely of the drum by a reciprocating head 18 mounted on guide rods 20 and provided with a groove 22 enga edby a roll 24 on the cutter carriage. he head is moved backand forth by a sprocket chain 26 supported upon sprocket wheels 28, one of which is secured to the upper end of a shaft 30 which is actuated throu h a rack 32, engaging a pinion 34 on the lower end of the shaft and also connected by a link 36 with a lever 3 The lowerend of the lever is secured to a rock shaft 40 which also carries a cam lever engaginga cam groove in the disk 42 which is secured to'the shaft 16. The arms 14 are nominally held in retracted position against spring supported stops 44 by springs 46 and are moved forward with the drum 2 during the travel ofthe cutter carriageacross the drum by one of a series of spring pressed pins 48 which project from the ends of the drum into position to engage the arms 14. In the construction shown the length of the sheets cut from the stock is one sixth the circumference of the drum and there are, therefore, six pins 48, three pins being mounted in one end of the drum and the alternate three pins being mounted in the opposite end of the drum. When the cutter carriage completes its travel across the drum in either direction a projection in the form of an adjustable screw 50 strikes the upper end of a lever 52, which is pivoted on the arm. 14, and rocks the lever so that its lower end forces back the pin 48, which is in engagement with the arm 14, thus disengag ing the pin from the arm so that the arms and cutter carriage are returned to retracted position by the springs 46. Since the cutter carriage. should be moved across the drum, after the drum has made a sixth of the revolution, the drumis loosely mounted on the shaft 16 and is driven from the shaft through gearing 54 proportioned to turn the drum through a sixth of a revolution for each half revolution of the shaft.

The sheets are taken from the drum 2 by stacking gripperswhich seize the leading edge of each sheet and transfer it to a booking board. It has been found that comparati'vely sm'all sheets will shrink to final size and condition more quickly than the larger sheets into which the stock has usually been cut and for economy and convenience in theslibsequent handling of the smaller sheets and also to enable booking boards of the usual size to be used, the grippers are constructed and operated to deliver the sheets so that they are stacked in layers of two sheets arranged side by side.

In the construction shown two sets of grippers are arranged and operated to take alternate sheets from the drum 2 and to deliver them side by side on a booking board 56, Figs. 1 and 2. The jaws of one set of grippers are carried on the lower ends of two arms58, the upper ends of which are secured to a hollow rock shaft 60, which is mounted in a bearing bracket. 62, Figs. 4, ,9, 10 and 11. One jaw, 64, of each pair of aws is fixed or formed on the lower end of an arm 58 and the path of movement of the arms is such that this jaw'will ass under the leading edge of a sheet on t e drum 2 as the arms reach the limit of their forward movement. The other jaws 66 of the grippers are pivoted on the arms 58 to swin toward and from the fixed jaws 64. lhach pivoted jaw is connectedb a link 68 with one end of a lever 70, the ot ier end of which is connected by a link 72 with a bell crank lever 74 mounted on an arm 58 and .con-

nected by a link 76 with a second bell crank lever 7 8 mounted on the arm near its upper edge. One of the bell crank levels 78 is'connected by an intermediate lever 80 with a rod 82, mounted to slide within the hollow shaft 60, while the other bell crank lever 78 is connected directly to this rod, as indicated at the right in Fig. 4. The rod is mov toward the right in Fig. 4 or in a direction to close the grippers by a spring 84' surrounding the rod within the shaft 60, and by a spring 86 connected with the end of the rod. The rod is moved in theopposite direction to open the grippers through a rod 88, mounted to slide in a bearing in the machine frame, and rovided at its innerend with a depending nger engaging the end of the rod. The other end of the rod 88 enga es an arm 90 projecting from the up ,r en of a vertical sleeve 92, the lower en of which is provided with an arm 94 connected by a link 96 with one arm of a bell crank lever 98, the other arm of which rides on a cam 100 secured to the shaft 16. The cam is timed to open the grippers as they reach their retracted position in Fig. 2 so that the sheet will be released as it is brought into pos tion close to the gage 102 at the edge of the booking board 56, Fig. 2. The cam is also timed to close the per after the fixed jaws 64 have passed under the leading edge of the sheet on the drum 2. As the sheet is transferred from the drum 2 to the booking board by the grip ' rs 64, and 66, it is carried over a guar which supports it during its movement over the left hand portion 0 the booking board and prevents its engagement with. the sheet Fl w 4 already deposited upon this part of the board, and insures its delivery into proper position upon the board.

The second. set of grippers is similar in construction to the set already described and is mo'unted'and operated in a similar manner. The fixed gripper jaws 106 are secured on the ends of arms 108 carried by a hollow rock shaft 110 and arranged to pass on opposite 'sides of the guard plate 104. The pivoted gripper jaws 112, of this pair of grippers, are connected by links 114 with bell crank levers 116, one of which is connected directly, the other of which is connected through an intermediate lever 118, with the rod 120 within the hollow shaft 110 which is operated in one direction by springs 122 and 124, and in the other direction by a slide 126, controlled by a cam 128 through a bell crank lever connected by a link 130 with a bell crank lever 132 engaging the outer end of the rod. Since the gripper jaws 1 12 in their advance movementtoward the drum 2 would otherwise engage the guard plate 104 the cam 128 is shaped to close the grippers during their advance movement and to open them as they come into 1 position to take the sheet from the drum '2. j Y

The two sets of grippersare alternately operated so that first one set'and then the other takes a sheet from the drum and deposits it upon the booking board by two cams 134 and136 secured to the shaft 16. The cam- 134 operates a cam lever 138, the upper end of which is connected by a link 140 with an arm 142 secured to a rock shaft 144, the inner end of which carries a gear segment 146, engaging a gear segment 148 on the hub of one of the arms 58. The other cam 136 operates a cam lever 150, the upper end of which is connected by a link 152 with an arm 154 formed on a sleeve 156 surrounding shaft 144 and provided at its inner end with a gear segment 158 engaging a gear segment 160 secured to the shaft 110 which carries the gripper arms 108.

The booking board shown is provided witlrfour separator sheets of canvas, or other suitable fabrics, which are secured in spaced relation at the left hand edge of the board as indicated in Fig. 2, the board thus being adapted for the stacking or booking thereon of five pairs or layers of sheets taken from the cutter drum 2. After two sheets of stock have been deposited upon the board by the two sets of stack ing grippersone of the separator sheets is automatically carried over into position to cover the sheets before the stacking grippers deposit the next two sheets upon the board. When the booking board is in position to receive the sheets the separator sheets have previously been folded over into the position indicated in Fig. 2 with that sheet uppermost which is to be laid over the first two sheets of stock deposited on the booking board. The means for placing the separator sheets between the sheets of stock comprises means for separating the top sheet from the sheets beneath it, and for turning the sheet over onto the sheets on the board. In the construction shown this means comprises two pickers adapted to pick up the outer edge of a separator sheet and to deliver it to travelling grippers, which seize the edge of the sheet and fold the sheet over into position above the sheets on the booking board. In the construction shown each picker is provided with a foot 162 adapted to engage the sheets and provided with two picker points 164 adapted to enter the sheet and hold it against the bottom of the foot, Figs. 12, 13 and 14. The picker points are carried in the lower ends of two levers 166 which are provided with arms engaging an annular grcove in a block 168 which is mounted for vertical movement within a recess in the foot. The foot is secured on the lower end of a sleeve 170 which is mounted for vertical movement in a head 172 and the block 168 is secured to the lower end of a rod 174, which extends up through the sleeve 170 and the head 172, and is provided at its upper end with a collar 1'76. A spring 178 interposed between the bottom of a recess in the sleeve 170 and a collar 180 on the rod 174 tends to iold the block 168 against the upper end of the recess in the picker foot and thus hold the picker pins in retracted, inactive position. A spring 182, mounted within a recess inthe head 172, and act ing on' a pin 184, carried by the picker foot, tends to force the foot downwnrd with relation to the head, the downward movement being limited by the engagement of the collar 176 with. the upper end of the head. A sleeve 186 is mounted in the upper end of the head and a spring 188 arranged between the collar 180 and the sleeve tends to hold the sleeve in engagement with the collar 176. A spring pressed latch 190 is pivoted to the picker head and is arranged to engage a projection on the sleeve 186 and lock it in position in the head. A second spring pressed latch 192 is pivoted to the picker head and is arranged to engage a projection on the picker foot 162 and lock the foot in position in the head against the tension of the spring 182. The picker head is carried on a vertically movable slide 194 mounted in a guideway 196.

In Fig. 18 the parts of the picker are shown in the position which they occupy after a sheet has been engaged and the picker has been raised to its upper position. carrying the sheet with it, the parts of the picker being locked in the relative positions indicated by the latches 190 and 192. When the sheet is to be released the latch 190 is rocked to free the sleeve 186 so that the spring 178 may lift the rod 174 and block 168 to withdraw the picker points 164 from engagement with the sheet, the spring 188 at the same time moving the sleeve 186 up into engagement with the collar 176. lVhen the picker is'next moved to engage the succeeding sheet a pin 198 on the latch 192 rides over a can] 200 mounted on the guideway 196 and the latch 192 is operated to release the picker foot so that it is moved downward with relation to the picker head 172 until its downward movement is an rested by engagement of the collar 176 with the upper end of the head. This movement brings the sleeve 186 into position to be again engaged by the latch 1.90 so that it is again locked in position in the head. When the foot 162 engages the sheet its downward movement is arrested and continued movement of the head 172 tends to compress the spring 188 and as this spring is stronger than the spring 17 8 the rod 174 and block 168 are moved downward, thus operating the'levers 166 to force the picker points 164 into the sheet. The final clownward movement of the head 172, with re lation to the foot 162, brings the latch 192 into position to rev-engage the projection on the foot and thus again lock the foot in position in the head. The parts of the picker are now again in the relative positions indicated in Fig. 13 so that the sheet is retained against the bottom of the picker foot by the points 164 and is raised during the upward movement of the picker. During this movement the pin 198 rides against the-cam 200 which is carried by a spring pressed lever so that it may yield to allow the latch 192 to pass idly during the upward movement of the picker and may immediately move forward into active position after the latch has passed. The pickers are raised and lowered at proper intervals by a cam 202 secured to a cam shaft 204 and engaging one end of the cam lever 206, the other end of which is'conneoted by a link 208 to one arm of a lever 210, the other arm of which is connected by a link 212 with one of the picker slides, Figs. 1, 3, 4 and 5. The lever 210 is secured to a rock shaft 214 which carries an arm 216 similarly connected by a link to the other picker slide. The cam shaft 204 is timed to make one revolution for each complete booking cycle and since each book in the construction shown is provided with four separator sheets the cam 202 is shaped to operate the pickers four times during each revolution of the shaft 204.

The latch 190 is operated to release the sheets as above described by an arm 218 secured to a rock shaft 220. arm 2% is secured to the end of the rocksha ft and is arranged to be engaged a pin 226 carried by one of the chains w ic'h operate the traveling grippers to which the sheets are presented by the pickers, Figs. 3, 4 and 15. The traveling grippers which take the sheets from the pickers are carried by slides 228, mounted in transverse ways 230, and connected by links 232 with chains 234, which are mounted on sprocket wheels and are driven in unison through gearing 1236 connecting sprocket wheels'at one end of the chains with a continuously rotating shaft 238, Figs. 1, 2, 5, and 16 to 18. Each gripper comprises a jaw M0 fixed to a rotary head 242 and a jaw 244 pivoted on the head and pressed toward the fixed jaw by a spring 246'. The rotary head 242 is formed on the end of a shaft 248, mounted in the slide 228, and provided on its inner end with an arm 250 carrying a roll 252 which travels in a groove 254 formed in the guideway 230. The pivoted jaw 244 is provided with a tail piece extending into line with the axis of the shaft 248 and engaged by one end of a lever 256 which is pivoted on the slide 228' and carries a roll 258" adapted to engage cam ribs 260 which are secured to the guideway 230 in positions to open and close the gripper at the proper times. The groove 254 is provided with a V-shaped depression 262 which acts to turn the gripper carrying head through 180 as. the roll 252 travels through it in either direction.

On the return travel of'the gripper slides the depression 262 in the groove 254 slots to turn the grippers through 180 from the position indicated in Fig. 17, thereby turning the grippers over so that the movable jaws will be above the fixed jaws, when the grippers are at the limit of their movement toward the left in Fig. 1 and are beyond the ends of the separator sheets. At this time the pivoted gripper jaws will be raised by the cam. ribs 260 which underlie the rolls on the ends of the gripper opening levers 256. After the pickers have raised the rear end of one of the separator sheets the forward travel of the gripper slides will bring the fixed gripper jaws 244 under the side edges of the sheet and as the rolls 252 ride off of the cam ribs 260 the movable grippers jaws will be closed to grip the edges of the sheet. At the same time, or immediately thereafter, the pickers will be operated as above described to release the sheet. During the continued travel of the gripper slides the depressions 262 in the groove 254 will turn the grippers through 180, thereby turning or folding the rear end of the sheet over so that it will be properly turned over and carried into p0 sition over the booking board by the continued travel of the grippers. As the grip per slides approach the limit of their travel toward the right in Fig. 1 the grippers are opened to release the sheet by cam ribs similar to the cam ribs 260 shown in. Figs. 16 and 17.

The booking boards are supported upon two flanged guide rails 264 arranged to underlie opposite edges of the boards, as indicated in Figs. 1 and 2. Empty boards are fed into position to receive the sheets of stock and the filled boards are moved away from receiving position by two conveyor chains 266, carried by two pairs of sprocket wheels 268 and 270, and provided with projecting lugs 272 arranged to receive the booking boards between them, Figs. 3 and 4. The booking boards are placed on the guide rails and between the feed lugs 272 at the right hand end of the machine in Fig. 3 and the separator leaves or sheets are turned back and are supported by an endless carrier, consisting of flat plates 274 connected by pivot joints and carried on supporting wheels 276. The supporting wheels 27 6 at one end'of the carrier are secured upon the shaft 278 which also carries the sprocket wheels 270 for the conveyor chains 266 so that the carrier will move in unison with the booking boards as they are fedalong the supporting rails. The means for intermittently feeding forward the conveyor chains and carrier is substantially the same in construction and mode of operation as the conveyor actuating means shown and described in Patent No. 1,181,091, April 25, 1916, and comprises grooved cam 280, secured to the shaft 204, and engaging a roll 282 on a cam lever 284, the upper end of which is connected by a link 286 with an arm 288 secured to a rock shaft 290, Figs. 1 and 3. The shaft 290 carries a gear segment 292, from which motion is transmitted to the shaft 27 8 through a rack segment 294 mounted to reciprocate on a frame 296, which is rocked to engage the rack segment with, and disengage it from, a gear 298 by a cam 300, cam lever 302, and link 304. The rocking frame 296 also carries a locking rack segment 306 which engages the gear 298, while the rack segment 294 is disengaged therefrom and is being given its return stroke by gear segment 292. Gear 298 is connected through gearing 308 with the shaft 278 so that the conveyor chains 266 and the carrier for supporting the leaves of the booking board are advanced to bring an empty booking board into receiving position and to carry a full board away from receiving position and are then looked in position during the delivery of the sheets of stock upon the board.

The Various mechanisms and parts of the machine are driven from a main driving shaft 310, which carries a worm 312, engaging a worm wheel 314 on the shaft 204,

and also carries two sprocket wheels 3 16 and 318. The wheel 316 is connected by a chain 320 with a sprocket wheel on a sleeve 322 which is mounted to turn on the shaft 238 and also carries a sprocket Wheel which is connected by a chain 324 with a sprocket wheel secured to the shaft 16, through which the sheet cutting mechanism and the sheet stacking grippers are actuated. The sprocket wheel 318 is connected by chain 326 with a sprocket wheel secured to the shaft 228, through which the chains for reciprocating the separator sheet grippers are driven.

While it is preferred to employ the construction and arrangement of parts shown and described in embodying the invention in a machine adapted to sever sheets from a continuously moving web and to book said sheets on booking board to which the separator sheets are attached, it will be understood that this construction and arrangement is not essential to the broader features of the invention and may be varied or modified as found desirable or best suited to the con ditions under which the invention is to be utilized.

What is claimed is:

1. In a machine for. stacking sheets of unvulcanized rubber in plastic sticky condition with separator sheets interposed to prevent adhesion of the rubber sheets to each other, mechanism for moving sheets of rubber stock of the consistency described to stacking position and depositing them successively in side-by-side relationship to make layers in a stack, and mechanism for placing separator sheets between adjacent faces of the stock sheets.

2. In a machine for stacking sheets of unvulcanized rubber in plastic sticky condition with separator sheets interposed to prevent adhesion of the rubber sheets to each other, mechanism for severing sheets of rubber stock from a web of stock of the described consistency and successively depositing the sheets in side-by-side relationship to make layers in a stack, and mechanism for placing a separator sheet over each stock sheet prior to the delivery of the stock sheet superposed thereon.

3. A machine for handling sheet rubber stock having, in combination, mechanism for successively delivering a plurality of sheets of rubber stock upon a support to form a layer of a stack in which the adja-' cent faces of the stock sheets are separated by interposed separatorsheets, and mechanism for delivering a separator sheet upon the layer of sheets.

4. A machine for handling sheet rubber stock having, in combination, a support for a booking board, mechanism for delivering on the booking board layers of a plurality of stock sheets, arranged side by side in the direction of movement of the'sheets to the support, and mechanism for laying separater sheets between the layers of stock sheets 5. A machine for handling sheet rubber stock having, in combination, supports for a booking board and for turned back separator sheets attached to the board, mechanism for delivering stock sheets onto the board, and mechanism for turning the separater "sheets successively over onto stock sheets 1 h oard 6. A machine for handling sheet rubber stock havin in combination a support for a booking board, mechanism for feeding boards to and away from receiving position and mechanism for alternately placing sheets of stock and separator sheets on heboard,

i 7. machine for handling sheet rubber stock havin in combination, mechanism for feeding coking boards successively into receiving position and mechanisms for piling sheets of rubber stock and interposed separator sheets on the board.

8. A machine for handling sheet rubber stock having, in combination, mechanism for feedin booking boards into and removi'ng thfm f i'om receivingosition, and mechanism for piling a preetermined number 01 sheets of rubber stock and interposed separator sheets on eachboard whil in receiving position.

9. A machine for handling sheet rubber stock having, in combination, an intermittently operated conveyor for feeding booking boards into and out otreceiving position, mechanism for cutting sheets of rubber stock from a web, mechanism for piling sheets on the board in receiving position, andmechanism for laying separator sheets overstock sheets on the board.

10. A machine for handling sheet rubber stock having, in combination, mechanism for severing sheets from a web of rubber stock operative whilethe stock is moving, and mechanism for placing said sheets in a book with separator sheets between adjacent faces of the stock sheets.

11; A machine for handling sheet rubber stock having, in combination, mechanism for severin sheets from a moving web of rubber stoc lr, and mechanisms for stacking the sheets and for placing the separator sheets between adjacent faces of the stock sheets. i

12. A machine for handling sheet rubber stock having, in combination, mechanism for severing sheets from a web of rubber stock, supports for a. booking board and for turned back separator sheets attached to tlreiboard, mechanism for delivering the stock sheets in a pile, on the board, and mechanism for turning the separator sheets onto stock sheets on the board.

A machine for handling sheet rubber stock having, in combination, mechanism.

for piling sheets of rubber stock on a support, pickers for separating individualsheets from a pile of separator sheets, and means for carrying separator sheets over sheets of stock on the board,

14. A machine for handlingsheetrubben stock having, in combination, a support for a booking board, mechanism 'for cutting sheets from a. web of rubber stock, stacking grippers for taking the sheets from the cutting mechanism and piling them on the board, and mechanism for separating individual sheets from a pile of separator sheets and placing them between stock sheets.

15. A machine for handling sheet rubberstock having, in combination, a sup-port for of the sheet from the pickers, and means for thereafter turning the grippers to turn the edge of sheet bottom side up as thegrippers travel over the sheet.

17. A machine for handling sheet rubber stock having, in combination, mechanism for stacking a plurality of sheets of rubber stock in side-byside relationship to form superposed layers of stock, and mechanism for placinga singleseparator sheet over each layer of stock in the stack.

18. A machine for handling sheet rubber stock, having, in combination, mechanism for delivering sheets of rubberstock one-above another upon a support, and mechanism for carrying a separator sheet over each stock sheet after it has been delivered and be fore the delivery of the superposed stock sheet. i 19. A machine for handling sheetrubber stock having, in combination, asupport for a booking board, mechanism for delivering pairs of sheets of rubber stock thereon, one in front of the other, and mechanism forlaying separator sheets between superposedpairs of rubber sheets.-

20. A machine for handling'she'et rubber stock having, in combination, for

moving sheets toward stacking position and: stacking certain of them side by side'in the direction of movement to make a layer of sheets and to superpose layer upon layer, and mechanism for placing separator 'sheetsbetween adjacent faces of the stock sheets.

21. A machine for handling sheet rubber stock comprising mechanism for delivering the sheets of rubber stock one above another upon a booking board comprising a plurality of separator sheets, and mechanism for turning a separator sheet over each stock sheet after the latter arrives upon the support and prior to the delivery of the stock sheet to be superposed thereon.

22. A machine for stacking sheet rubber stock having, in combination, mechanism for delivering sheets of rubber stock one above another upon a booking board comprising a plurality of attached separator sheets, and mechanism for turning the separator sheets one at a time over each stock sheet after the latter has been delivered and before the delivery of the superposed stock sheet.

23. In a machine of the class described, a cylinder to which a web of rubber stock is fed, a cutter co-operating with the cylinder to cut sheets from the web of stock, and

grippers for taking successive severed sheets directly from the cylinder and depositing them upon a support side by side in the direction of movement of the sheets.

24:. In a machine of the character described, a'cylinder to which a web of rubber stock is fed, a cutter movable with the cylinder and also transversely thereof to cut the stock while the latter is moving, and a gripper for taking severed sheets directly from the cylinder and depositing them on a support.

25. In a machine of the character described, a cylinder to which a web of rubber stock is fed, a cutter movable with the cylinder and also transversely thereof to cut the stock while the latter is moving, and a plurality of grippers operating in succession to take severed sheets directly from the cylinder and depositing them upon a support.

26. In a machine of the character described, a cylinder to which a web of rubber stock is fed, a cutter co-operating with the cylinder to cut sheets from the web of stock while the latter is moving, a delivery table, and a plurality of sets of grippers for taking severed sheets in succession directly from the cylinder and depositing them upon the table in side-by-side relationship.

27. In a machine of the character described, a cylinder to which a web of rubber stock is fed, a cutter co-operating with the cylinder to cut sheets from the web of stock while the latter is moving, a delivery table, a plurality of sets of grippers for taking severed sheets in succession directly from the cylinder and depositing them upon the table in side-by-side relationship to form a layer of sheets, and means co-operating with one set of grippers for carrying the last sheet entirely over the first sheet deposited on the table so as not to displace the sheet first delivered in the layer.

28. In a machine of the character described, a cylinder to which a web of rubber stock is fed, a cutter co-operating with the cylinder to cut sheets from the web of stock while the latter is moving, a delivery table, a plurality of sets of grippers for taking severed sheets in succession directly from the cylinder and depositing them upon the table in side-by-side relationship to form a layer of sheets, and a support arranged to co-operate with one set of grippers in delivering the last sheet in a plane above the sheet first delivered in the layer so as not to displace the latter.

29. In a machine of the character described, a delivery table, a plurality of means for delivering sheets of rubber stock in sideby-side relationship to form layers of sheets and in superposed relation to form a stack, and means for depositing separator sheets between the layers of the stack.

30. In a machine of the character described, a delivery table, a plurality of sets of grippers for delivering sheets of rubber stock in side-by-side relationship to form layers in a stack, a stationary means co-operating with one set of grippers to carry one sheet of each layer completely over the sheet first deposited in each layer so as to avoid displacing the sheet first deposited, and means for interposing separator sheets be tween the layers of rubber stock in the stack.

31. In a machine of the character de scribed, a support for a booking board comprising a plurality of attached separator sheets, means for delivering sheets of rubber stock to the booking board, means for successively lifting the unattached ends of the separator sheets, and means for receiving the unattached end of each separator sheet from the lifting means and for turning the sheet over upon a sheet of rubber stock on the booking board alternately with the delivery of the rubber stock whereby a stack of rubber stock is built up with separator sheets interposed between the adjacent surfaces of the stock sheets.

32. In a machine of the character described, a support for the booking board comprising a plurality of attached separator sheets, means for delivering sheets of rubber stock to the booking board, means for seizing the unattached ends of the separator sheets one by one to interpose them successively between the stock sheets, and means for rotating the seizing means so as to efi'ect the proper turning of the separator sheets during the operation of superposing them upon the stock sheets.

33. In a machine of the character described, a support for a booking board comprising a plurality of attached separator sheets, grippers for depositing sheets of rubber stock upon the booking board, and means for turning the separator sheets one by one to interpose them between the stock sheets, the last mentioned means comprising penetrating members which engage the unattached end 01 each separator sheet to lift them one by one, and traveling grippers which take the separator sheets from the members and carry them by a turning movement to position them alternately with respect to the stock sheets whereby a stack of stock sheets and separator sheets is formed.

34. In a machine of the character described, a carrier intermittently operative to position a plurality of booking boards successively in position for receiving sheets of rubber stock, a plurality of grippers for receiving the sheets and depositing them upon the booking board at the time in receiving position, a continuously rotating cylinder for delivering the sheets of stock tothe grippers, and gripper members for delivering separator sheets alternately with respect to the stock sheets so as to interpose the separator sheets between the stoeksheets in a stack.

35. In a machine of the character described, a support for a bookingboard comprising aplurality of attached separator sheets, means for successively lifting the unattached ends ot' the separator sheets, and means for receiving the unattached end of each separator sheet from the lifting means and for turning the sheet over upon a sheet of rubber stock on the booking board alternately with the placing thereon of a rubber stock sheet whereby a stack of rubber stock is built up with separator sheets interposed between'the adjacent surfaces of the stock sheets.

36. In a machine of the character described, a support for the booking board comprising a plurality of attached separator sheets, and means for seizing the unattached ends of the separator sheets one by one and turning them to interpose them successively between sheets of rubber stock placed one at a time upon the booking board, whereby a stack of rubber sheets and separator sheets I and separator sheets is built up in the book;

38. In a machine of the character do scribed, a support for sheet material, and means for successively delivering a plurality of sheets upon the support in side-by-side relationship to form alayer of sheets.

39. In a machine of the character (16 scribed, a stationary support for shee material, and means for receiving sheets from a source of supply and depositing them on the support side by side in the direction of moveinent of the sheets.

a0. In a machine of the character described, a stationary support for a stack of sheet material, and a'plurality of means operating in succession to receive sheets from the source of supply. and to deposit them on the support one after the other in the direc tion of movement of the sheets to form a layer of the stack. o

41. In a machine of the character described, a cylinder and atraveling cutter'cooperating to sever sheets from a Web of stock while the latter is moving, a support for a stack of sheet material, and a plurality of grippers for taking the sheets successively from the cylinder and depositing them in side by side relationship on the support to form a layer of the stack.

ERASTUS WINKLEY.-

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