US1834382A - Sheet feeding device - Google Patents

Description

Dem l, 1931. E CHESHlRE 1,834,382

SHEET FEEDING DEVICE Filed Aug. 16, 1924 8 Sheets-Sheet l D'ec. 1, 1931.

E. CHI-:SHIRE 1,834,382

SHEET FEEDING DEVICE a sheets-sheet 2 Filed Aug. 16, 1924 DeC. l, 1931. E CHESHlRE 1,834,382

SHEET FEEDING DEVICE Filed Aug. 16, 1924 8 Sheets-Sheet 5 Dec. l, 1931. E. CHESHIRE 1,834,382

HEETFEEDING DEVICE Filed Aug. 16, 1924 8 Sheets-Sheet 4 Dec. l, 1931.

E. CHESHIRE SHEET FEEDING DEVICE 8 Sheets-Sheet 5 67 93 75 Filed Aug. 16, 1924 jizz/@HE7 De@ 1, 1931- E. CHEsHlRE 1,834,382

y SHEET FEEDING DEVICE Filed Aug. 16, 1924 8 Sheets-Sheet 6 Dec. l, 1931. E. cHEsHIRE SHEET FEEDING DEVICE 8 sheets-sheet 7 Dec. l, 1931. E. CHI-:SHIRE SHEET FEEDING DEVICE Filed Ag. 1e, l1924 8 Sheets-Sheet 8 Patented Dec. l1, 1931 cierren srars PATENT ori-ice i EDWARD oiiEsiiiaE, or MILWAUKEE, WrscoNsiN" VV'siiiiE'i EEEDiNG DEVICE Application led August 16, 1924. Serial No. 732,443.

Y My invention pertainsito.sheet-feedingdevices, and relates especially to devices for feeding sheets to the platen of a platen printing press. *i5 An `object of my invention is to provide a feeding device in which the member which carries the sheets is given a movement of a smooth and easy nature, so as to minimize wear and vibration of the parts and to allow Y "-f) of feeding at relativelyhigh speeds wit-hout damage to the mechanism or loss of vaccuracy in its functioning. Itis another'object to 'produce a feeding device for platen presses in y, which there will be a high degree of accessi- 5 bility. both to the feeding device and to the press, and which will permitsucli operations as the hand-feeding of sheetsand the makei'eady of the press to be performed with great facility. It is afurther object of my vinven- '20 tion to produce a feeding device which will be an improvement on othersheretofore produced and proposed in simplicity .and ruggedness of construction, ease of adjustment and operation, and 'general cliiciency in the. perform,-

J' K25 ance of its work. And-still other and further '30 ccinpanying drawings, and described in the vfollowing specification,` a feeding device constructed in accordance with my invention. It is to be understood however that my invention may be embodied in other forms, and v 5 that changes may be made in the form described and shown, without exceeding the scope thereof as dei'ined in the appended claims. As this application relates particu- Vlai'ly to means for feeding sheets, the means for delivering the printed sheets from the "press described below, and the feed and delivery tables with the automatic means for actuating the saine, are not shown in detail, or described at length, herein. Such delivery di means, however, is described in my co-pending application, Ser. No. 26,972, vfiled April In the drawings: i

Figure l is a side elevation of. a platen press having a sheetfeeding device embodying my invention applied thereto, the feed grippers being in their rear, sheet-receiving position, and the fly-wheel being removed;

Figure 2 is a plan of the same; VFigure 3 is a front view ofthe same; Figure l is .asection on the linev 4-4 of Figure 3, looking in the direction-of the arrows; r

Figure 5 isa section on the line 5 5 of Figure 3, looking' in the direction of the arrows; G0

Figure; 6-.is an enlarged side View of the feed arm and associated parts, parts being broken away to" show the means. for effecting the closure of the feed grippers; f o

. Figure 7. is a view similar ,to Figure 6, but p, showing a different position of theparts; y

Figure 8 is a section on the line 8-8 of Figure f 3,'y showing the mechanism in a position in which the feed grippers are just about to seize a sheet; 'im

Figure 9 is aplan of the parts shown in Figure 8'; A

Figure 10 is a sectional view similar to Figure 8, but showing the-mechanism in a position in which the feed grippers liaveyjust deposited a sheet upon the platen; Figure 11 is a plan .of the parts shownin Figure l0; A zf Figure V12 is a section onf the line 12-.12 of Figure l0; and A, 299

Figure 13 is an enlarged. vertical section of one of the feed grippers.v I

' Referring now to the drawings, the main frame of the machine comprises a left-hand side casting 20 and a right-hand side casting i 21 which are connected together so as to forni a solid framework for thensupport of the mechanism. Each of these castings is formed with a web which overlies the ordi- `the lower ends ofthebushings 22`rest, and are .threaded into the horns a.

Y Nuts 24 are provided on the upper ends'of the studs 23, and washers are. interposedl between these nutsgloo* and the webs of the side castings 2O and 2l. It will be seen that by this means the castings 20 and 2l are connected securely to the press; and that any slight adjustment of the )osition of the main frame may be obtained y adjusting the threaded bushings 22 before tightening the nuts 24. Bolted between the side castings 20 and 21 is a ribbed front plate 25 which is disposed so as to be slightly inclined forward from the vertical. The front plate is also bolted between the horns (a of the press, and serves as a girt to stay the press frame in substitute for parts which are removed in applying the present feeding device. It also forms a guide for the front face of the pile of stock to be fed, as will be later described. A bottom plate 2G is also bolted between the side castings 20 and 2l.

To the outside' of the right-hand side casting 2lfthere is bolted a housing 27 (Figs. 3 and formed with bearings 28-23 for a short shaft L19, the bearings being so positioned as to align the shaft 29 with the press shaft 5 which carries the usual bull-wheel c connected by the crank-arm CZ with the pressbed c. On the inner end ofthe shaft 29 is secured a cam 30, which is connected (Fig. 4) to the pin which connects the crank arm (Z to the bull-wheel c, to which latter the cam 30 stands adjacent. Thus the .shaft 29 is caused to rotate with the press-shaft 5.

A. downwardly and forwardly inclined stock-table 3l is located between the side castings 2Ov and 2l, with its front edge adjacent the front plate 25, and is provided with a stem 32 which has a bearing in the bottom plate 26. Upon this table is placed the pile of sheets to be fed, the front face of the pile engaging the front plate 25, and the side faces bei-ng engaged by suitable side guides. Automatic means are provided forelevating the table step by step as sheets are removed therefrom, but are not shown or described herein, as they form no part ofthe present invention.

Extending between the sideV castings 2O and 21, at a short distance from the front plate 2o is a separator bar 33. VThis is carried by a pair of arms 34, one of which is pivoted to the left-hand side casting 20. The other arm 34 is secured to a shaft 35 having its bearing at one end in the right-hand side casting 2l, and at the other end in a member 36 secured to the housing 27 (Figs. 2', 3 and 4) ln the drawings, the shaft l is shown as former with an ofset'portion. This is to provide clearance for other parts of the machine, not shown herein. Near its outer end, the shaft 35 is provided with an arm 37 which is connected by a link 33 with a cam-lever 39 pivoted to the housing 27 and actuated by a cam 40 on the shaft 29.

Mounted on the separator bar 33, so as to be Vadjustable lengthwisethereof, are a pair of pneumatic separator' feet 4l.V These are connected by suitable hose with cach other and with a shut-off cock 42. The cock 42 has a hose connection with a valve 43 (Fior. 4) which also connects with a suitable vacuum pump (not shown). rlhe valve 43 has a stem 44 which engages a cam-arm 45 actuated by a cam 46 on the shaft 29.

is the cam 40 revolves, the separator bar 33 is caused to descend until the feet 41 rest upon the'top sheet of the pile of stock. At this time the cani 46 has opened the valve 43, so'that suction is applied at the separator feet, whereby the top sheet is caused to adhere to the latter. Shortly afterwards, the cam 40 causes the separator bar 33 to rise again, the top sheet rising with it, adhering to the separator feet 41. The sheet is held in this elevated position until its front edge is seized by the feed grippers to be described below. l/Vhen the sheet is thus seizedthe cam actuates the valve 43, to shut off vacuum from the sheet, thus releasing the latter, to be carried forward. to the platen by the feed grippers.

rlhe side castings 2O and 21 are formed with bearings for receiving arock shaft 47, the end of which extends outwardly of the left-hand side casting 2O and has secured to it the lower ond of a feed-arm 43'. rt its front part, near the top, the feed-arm 48 is formed with a boss 49 in. which is' cut a slot 50. rlhis slot is curved upon the arc of a circle, the center of which is on the axis of the pin f which connects trie left-hand crank arm (Z with the bed c, in the position which said pin assumes when the bed is in impressionrposition (Fig. l). Secured in the slot 50 by a nut 5l is a pin 52, to which is rockably connected one end of a link 53. The other end of the link passes through a socket 54 rockably mounted on the pin f, and is normally secured against sliding in said socket by means of a latch-pin 55 adapted to enter a suitably placed hole in the link 53. rllhe latch-pin 55 is springpressed downwardly so as to be normally maintained in engagement with the hole in the link. Under these conditions the head 5G of the latch pin occupies a correspondingly shaped depression of the socket 54. Upon the latchI pin being manually lifted, however, and twisted so that its head cannot enter the depression of the socket 54, it will be maintained in a position out of engagement with the hole in the link 53, the link being then able to slide freely in the socket 54. By this construction, the to and fro rocking of the bed effects a corresponding movement of the feed-arm 48, the latter swinging rearwardly away from the stock pile as the bed rocks rearwardly away from its impression position, and winging forwardly toward-s the stock pile as the' bed rocks forward to its impression position. Upon the release of thc latch-pin 55, as above described, the feed arm can remain stationary while the press continues its movement.

withan'elongated bearing 57 Y, in which isv rockably mounted a gripper-bar 58, the latter being rectangular in lcross-section except for awr 65. Yready to receive a sheet.

the part which entersthe` bearing 57. TheV feed gripper-s 59, two of which 'are provided,

are mounted on thegripper'bar 58; `*Each I Agripper is formed with a Vchannel-shaped eenltralportion 60 adapted to fit on the square portion of the gripper bar 58, and to be secured against removal therefrom by a plate 6l attached to the bottom of such central por-v tion. A' withdrawablespring-pressed pin 62 is mounted in the portion V60 and is adapted to enter one or another of a series *ofv holes formed in the gripper bar 58, thereby to per* mit the gripper as a whole to be adjusted longitudinally of the gripper bar, to any desired position on the latter. Beyond the central portion'60, the gripper is of channel-shape Ain cross-section, so as to provide a pair of downward flanges 68, and is formed at its end with a cylindrical guide 64 for receiving the movable gripper-jaw 65, which latter is in the form of a cylindrical plunger adapted to close upon a fixed jaw 66 secured vto the guide 64 so asto extend beneath the same. An actuating lever 67 is pivoted between the flanges 63 and is bowed at one end so as to extend over andbeyond the central portion 60, at which end it is formedwith a notch 468. At its opposite end, the actuating'lever entersa recess 69 formed in the movable jaw, this recess being of such length` as to permit lost motion between the jaw and theend of the lever. A leaf spring 67a carried by the Vgripper presses downward upon the movable jaw 65 with a pressure which may be regulated by, manipulating an adjusting During the cycle ofthe machine, by means which will be described below, jtlielever 67 is moved successively into three effective pozg shaped that the jaws 66, during the last part sitions. In'the first position, Vshown in Figs. 8 and 13, it presses upwardly on the top end of therecess 69,7thereby raising the movable In this position the gripper open,

In the second position,- it presses downwardly on the rbottom end of the rrecess 69, thereby forcing the movrable jaw 65 firmly down on a sheet interposed between it and the fixed jaw 66, whereby the sheet is gripped'positively. ln the third position, shown'in Fig. 10, the movablejaw- 65 is pressed by the action of the 'leaf spring 67a alone against the sheet interposed between it andthe fixed jaw 66, the end of the lever 67 being` midway between the ends of therecess 69. tion, the sheet is gripped impositively, strongly enough to be moved by the gripper yet lightly enough to escape from the gripperjawsy upon its edge coming intoengagement with an abutment.V itis ,desiredl to 'inodifytlie strengthof the impositive gripstationary sheet ,receiving position. rearpart 83 of the cam-slot is shaped so that the jaws 66V of the feedgrippers can followv In this last posiping above referred'to, this may be effected by manipulating the screw V67".v

At its end opposite to'that which carries the jaws 65 and 66, and beyond the central portion 60, the feed-gripper is formed with a pair of arms 71,' in theends ofwhich are revolubly mounted bushings 72 having square holes therein (Fig. 13). Extending through the square holes of the bushings 72 'in the arms 7l of the feed grippers is a rock-shaft 78 of square cr0ss-section for ajportion of its length. Upon this rock-'shaft are mount` ed armsV 7e having square holes therein, so 'that they `rock with vthe sliaftl These arms 74 are located between the arms 7l of the feed grippers, and engage at their ends inthe notches 68 of the jaw-actuating levers 67; se that the rocking vof the shaftr' will effect the several movements of the .levers `'67.

Both` the arms 74: and the bushings 72 ofthe feed-,grippers can slide lengthwise of the rock shaft v78, which enables the feed-grippers, carrying with them the arms 74, to be-adjusted lengthwise of the gripper bar 58 as units.

Nea-r its end adjacent the feed-arm 48,`the

link 78v is connected to the rock-shaft 7 8 and extends downward lengthwise of the feed arm 48. its lower end, this link enters a guideway'on the feed arm and is Vprovided Vwithv acam-roll 79.v The cam-roll travels in agcamslot formed in a floating cam 8O pivoted at 8l to the left-hand side casting 20. As the feed arm swingsto and fro the link 78 causes the feed-grippers 59 and the gripper bar 58 to rock in such a manner that the fixed jaws 66 of the feed grippers will'follow a The front'part 82 of the cam-slot is so of their forward movement toward thestock pile land lthe first part of their return movement,`willfollow a path in which they clear the path followed by. the front edge of the platen f; as the latter rocks to and from its The a path parallel with the face of the platen, andlin close Aproximity thereto, from a point near the center of the platen to a point close to the rear edge of the same.

- Ashaft 84 extends across'the machine and Y has bearings in theside castings`2() and 21. At oneend, this shaft has secured to it an arm 85 whichl is connected by an adjustable link 86 with a lug extending downward from the floating cam 80. At its vother end, the

rying a roll which engages the edge of the cam S0. f The Ysaid edge is ofsuchconfigura- Vshaft 84 is provided with a cam-arm 87 cartion as to cause a drop of the cam-arm 87 when the feed=arm i8 and feed grippers 59 reach the end of their feeding movement. lflihen this drop of the cam-arm 8'? tal-es place, the shaft 84 rocks, and its arm 85, thro-ugh the link 86, effects a depression of the floating cam 80. This, through the link 78, causes a slight rais g movement of the front ends of the feed-` ppers, enabling the jaws 6G of thelatter, in their return movement, to clear the sheet just fed.

Secured to the end of the rock-shaft 73 is an arm 88 to which is pivoted a link 89, the pivot being located substantially on the axis of the feed-bar 58. The link 89 extends down beside the linlr 78 and is connected, by a pin 90 with an arm 97 pivoted to the feed arm 48. Upon the pin 99 is mounted a cam-roll 91, which,at one state ofthe cycle of the machine, is adapted to eng beneath a cam-flange 92 inwardly from the floating which extends cam 80. The cam-flange 92 is so located that itwill be engaged by, and remain in engagement with, the roll 9i at and for substantially the same time as the rear part 88 of the cani-slot is engaged by, and remains in engagement with the roll 79. fr torsion spring 98 connected between the arm 75 and a collar secured on the rock shaft 78, and tends to rock the shaft 78 in a clockwise direction, i. e. in a direction in which the arms 'Til and actuating levers 6'? hold the gripper jaws 65 firmly closed.

As the feed-arm i8 swings towards. the platen g the cam roll 91 is not at first engaged f rnything; consequently the gripper aws Co held firmly closed by the action of the spiin 98, l/Vhen however, near the center of the platen, the feY d grippers come close to the platen and begin to move parallel therewith* which is the time 'the roll 7 9 enters upon the rear part 88 of its cam slot,-the roll 91 will engage beneath the cam-flange 92, and will thereby be depressed. This depression of the roll 9i and link 89 causes the shaft 78 to reclr, against the action of the spring 98, to a sufficient extent to raise the ends of the actuating levers 67 to a position midway in the recesses 69 of the movable gripper jaws 65. When this occurs, the movable jaws will engage upon the fixed jaws 66 by pressure of the leaf springs G7 only, as has been described above.

Pivoted on the pin 90 which carries the am roll 91, and resting against a lug 94 on the link 89, is a linger 95 connected by a tension spring 9G with a lug formed on the hub of the armi-97. Formed on the upper part of the flea-.ing cam' 89, towards the front of the latter, is a cam-lug 98 disposed in Va vertical plane somewhat within that occupied by the camflange 99, of the floating cam 80, the lower face of which lug is inclined downwardly and forwardly. When the feed-arm Vi8 swings forward' to a position where the 'feed-gripper jaws are approaching the sheet .held 'suspended from the separator feet 41,

register gage pins 7i, 7L and the side register pin e' will'have been placed in the proper positions o-n the platen. To adjust the throw of the feed-armI 48 (supposing sheets of a different length have been previously fed) j the press is turned over until the bed e is in its rearmost, open position, with the pins of the crank-arms CZ on their dead centers. The nut 5i is then loosened and the feed arm 48 moved forward or back (the pin 52 sliding in the curved slot 50) until the jaws 66 of the feed grippers 59 are a very slight distance to the rear of the line which the edge of the paper will occupy when it is in engagement vith the end-register pins L, h (Figures 10 and 11). The pile of stock is placed in the proper position with respect to the location of the side register pin z' on the platen, and the feed grippers 59 and separator feet il are appropriately adjusted on their bars 58 and 88, `fith respect to each other and with respect to the end-register pins L, 7L on the platen.V The machine can then be set in motion.

As the feed arm i8 swings forward towards the pile after the roll 91 has left the cam-flange 92, the jaws of the feed grippers are closed; but as soonas the finger 95 strikes the cam-lug 98 they will begin to open. By

this time the separatorl feet il will have raised a sheet into position to be embraced by the jaws of the feed-grippers (Figures 8 and 9). As the feed-arm completes its forward movement, the finger 95 passes beyond the cam-lug 98 and the aws of the feedgrip f f l pers snap shut upon the sheet (Figure 6). The valve i8 is then actuated to cut-off the suction and release the sheet from the separater feet 4:1. Thereupon the feed arm 48 begins to swing rearward, the feed grippers il.

carrying with them the sheet towards the platen g, which latter is rocking towards its open position. i During the first part of-this rearward movement the ends of the feedgrippersV are considerably above the platen, to

allow room for the front edge of the latter' to rock past. 1vVhen, however, the cam-roll 79 reaches the front end of the rear part 83 of the cam-slot, the Ijaws-66 of the feed grippers will have come into close proximity with -F' the platen and thereafter will travelparallel therewith. At the saine time, the roll 91 will have come into engagement beneath the cam-flange 92, whereby the gripper jaws will be relieved from the action of the spring 93 and will engage upon the sheet bythe action of the leaf springs 67a alone, thereby retaining the sheet impostively. J ust before the feed arm concludes its rearward movement, the front edge of the'sheet strikes the end-register pins rt, `The feed-grippers then proceed onward, slippingoff'lthe impositively held sheet and leaving the latter in engagement with the pins. After this, the feed arm moves just the slight distance further necessary tocarry-the feed gripper jaws clear of the sheet. As the rearward movement of the feed `arm 48 is thus completed, the cam causes the shaft 84: to rock slightly, whereby the link 86 swings the floating cam 8O slightly downward. This,

through the cam-roll 7 9 and link `78causes an upward tilting of the ends of the feedgrippers, allowing them to clear the newly .fed sheet in their return movement.

It will be noted that the feed mechanism herein described permits the press to be made-ready for a job, and a short run of sheets to be hand-fed, with great facility. All that` is necessary is to lift and turn the latch-pin 55, whereupon the feed'arm may be manually pulled forward to a position a 'little in advance of the'normal extreme vforward position shown in Figure 6. When thus pulled forward, it automatically secures itself by the engagement of an ear 111, with which 'it is formed, behind a releasable latch 112 pivoted to a lug on the floating cam v80. lith the feed-armthus swung back, the press is fullyaccessiblefor make-ready from the operators usual position, and handfeeding may be performed easily and conveniently.

It will be noted, further, that the feed-arm 48 is driven by a crank-motion yand has the whole cycle o-f the press in which to perform its movement; A result ofthis is that the device may be run at high speeds without loss of feeding accuracy or undue wear ofthe parts. Moreover the act of depositing the sheet against the end register pins on the platen is performed when the feed grippers are travelling very slowly, having almost reached their dead-center position. This results in great accuracy, and an entire freedomfrom any tendency of the sheets to bounce back from the register pins when being fed at high speeds. Likewise, the seizing of the sheet from the separator feet is effected when the feed grippers are at their other dead-center position, thus giving plenty of time for this operation to be performed smoothly, and for the vacuum to be cut 0E from the separator feet 4l before the feed grippers begin to move again. I

Having thus fully described my invention,

what I claim as new, and desireto secured by Letters Pate1it,"is: i l. The combination with a press including a bed, a platen and a crank motion device for f rocking said bed' with'respect to'said platen',

of means for feeding sheets to said press l comprising a rockable feed arm, a link coniected between said crank motion device and said feed arm for rocking tlielatter between a sheet receiving position and a position over the platen, a sheet carrying member movably associated with said feed arm, and means for ineving said member with respect to said feed arm during the rocking of the latter, whereby said member clears the path traversed by the platen and subsequently comes 1 into proximity with the latter. ,l

2. A sheet feeding device for a platen iress, comprising a rockable feed arm, means for rocking said feed arm between a sheet receiving position anda position over the .i

platen, part of the rocking taking placev during the movement of the platen, a vmember movably associated with said feed arm, a sheet carrying device associated with. said member, said member being disposed so as to f,

clear thepath of the platenv during one portion of the movement of said feed arm, and means for moving said member with respect rto said feed arm so as tov cause said sheet carrying device to travel substantially parall- :'il

lel with the platen during another portion of themovement of said feed arm.

3. The combination with a platen press including a bed, a platen, and a crank motion device for effecting a rocking movement `of Vthe bed with respect tothe platen, of means for feeding sheets to said platen, comprising a rockable feed arm, connection means between said feed arm and said crank motion device to cause said feed arm to rock between f a sheet receivingposition and a position over -said platen, a member movably associated withsaid feed arm, a sheet carryingdevice associated with said member, said member vice clears thepath ofthe platen during the first part of the movement of said feed arm 'towards the platen, andV means for moving said member Awith respect to said feed arm, so

being disposed so that said sheet carrying deas to bring said sheetcarrying deviceinto proximity with the platen during the latter partV of the movement of said 4feed arm towards theplaten.' y

4. The combination with aV platen press iiicluding a bed, a platen and a crank motion associated withV said member, said member being disposed so that said sheet carrying device clears the path of the platen during the first part of the movement of said f-eed arm towards the platen, and means for moving said member with respect to said feed arm, so as to cause said sheet carrying` device to travel substantially parallel with the platen during the latter part of the movement of said feed arm towards the platen.

5. The combination with a platen press including a bed, a platen and a crank motion device for effecting a rocking movement` of the bed with respect to the platen, of means for feeding sheets to said platen, compri Aing a rockable feed arm, connection means between said feed arm and said crank motion device to cause said feed arm to rock between a sheet re'eiving position and a position over said platen, a member movably associated with said feed arm, a sheet carrying device associated with said member, said men'iber being disposed so that said sheet cai'- rying device clears the path of the platen during` the first part of the movement of said feed arm towards the platen, means for moving said member with respect to said feed arm, so as to bring said sheet carrying device into proximity with the platen during the latter part of the movement of said feed arm towards the platen, and means for effecting a further movement of said member to separate said sheet carrying device froni the platen during the first part of he movement of said feed arm away from the platen.

6. The'combination with a platen press including a bed, a platen and a crank motion device for effecting a rocking movement of the bed with respect to the platen, of means for feeding sheets to said platen, comprising a rockable feed arm, connect-ion means between said feed arm and said crank motion device to cause said feed arm to rock between a sheet receiving position anda position over said platen, a member movably associated with said feed arm, a sheet carrying device associatedA with said member, said member being disposed so that said sheet carrying device clears the path of the platen during` the irst part of the movement of said feed arm towards the platen, means for moving said member with respect to said feed arm, so as to cause said sheet carrying device to travel substantially parallel with the platen during the latter part of the movement of said feed arm towards the platen, and means for effecting a further movement of said member to separate said sheet carrying device from the platen during the first part of the movement of said feed arm away from the platen.

7. A sheet feedingdevice for platen presses comprising a movable feed member, a sheet carrying member associated with said feed member and movable with respect thereto,

connection means between the press bed and said feed member for actuating the latter, means for moving said sheet carrying member with respect to said feed member during a to said platen, comprising a member movy ableacross the platen towards the end stop thereon to deposite the sheet thereagainst, a link for connectingthe press bed with said member, to actuate the latter, and adjustable connection means for an end of said link,y

whereby the extent of movement of said member towards the end stop can be varied.

9. A sheet feeding device for a platen press,

'comprising a rockable feed arm, means for rocking said feed arm between a sheet rei ceiving position and a position over the platen, part of the rocking taking place during the movement of the platen, a` member movably associated with said feed arm, a sheet carrying device associated with said member, r9-5 said member being disposed so as to clear the path of the platen during one portion of the movement of said feed arm, means for moving said member with respect to said feed arm so as to bring said sheet carrying device T11-O0 into proximity with the platen at another portion of the movement of said feed arm, and means for adjusting said rocking means so as to vary the extent of movement of said feed arms towards the platen.

10. The combination with a platen press including a bed, a platen and a crank motion device for effecting a rocking movement of the bed with respect to the platen, of means for feeding sheets to said platen, comprising a iockable feed arm, connection means between said feed arm and said crank motion device to cause said feed arm to rock between sheet receiving position and a position over said platen, a member movably` associated withA said feed arm, a sheet carrying device associated with said member, said member icing disposed so that said sheet carrying device clears the path of the platen during the first part of tie movement of said feed;

arm towards the platen, means for moving said member with respect to said feed arm, so as to bring said sheet carrying device into proximity with the platen during` the latter part of the movement of said feed arm towards the platen, and means for adjusting said connection means to vary the extent of `iinovement ofl said feed arm towards the platen.

1l. The combination with a platen press including a bed, a platen and a crank motion device for eecting a rocking movement of the bed with respect to the platen, of means for feeding sheets to said platen, comprising a rockable feed arm, la link connected between said crank motion device and said feed arm for rocking the latter between a sheet receiving position and a position over said platen, an adjustable connection for an end of said link whereby the extent of movement 10 of said feed arm towards the platen may be varied, a member movably associated with said feed arm, a sheet carrying device associated with said member, said kmember beingl disposed so that said sheet carrying device 15 clears the path of the platen during the first part of the movement of said feed arm towards the platen, and means for moving said member With respect to said feed arm, so as to bring said sheet carrying device into prox- 20 imity With the platen during the latter part of the movement of said feed arm towards the platen. Y

EDWARD CHESHIRE.

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