US1681652A - Duplicating-machine drive and feed - Google Patents

Description

Aug. 21, 1928. 1,681,652

l u. lK. ALDRlcl-i D UPLILCATING MACHINE DRIVE ND FEED Filed Jan. 5. 192'? 4 Sheets-Sheet 1 .Ll/mz mm,

afm?,

A TTORN E Y.

Aug.- 21, 19211.A 1,681,652

1 .,K. ALDmcH DUPLICATTING MACHINE DRIVE AND. FEED Filed Jan. 5, 1927 4 Sheets-Sheetv 2 ATTORNEY.

jAug. 21, 192s;

1,681,652 L. K. ALDRICH DUPLICATING MACHINE DRIVE AND FEED D 1 N VEN TOR.

D @M M7 A TTORNE Y.

Aug. 21, 1928. 1,681,652

L. K. ALDRlcH DUPLICATING MACHINE DRIVE AND FEED Filed Jan'. 5. 192'? 4,sneets-sheet 4 y {Nl/ENTOR. L Liri/Mum, BY

@ C 'ATTORNEY Patented Aug. 21, 1928.

LESTER KYLE Annalen, or SIDNEY, OHIO.

DUFLICATIIlG-MACHINE DRIVE AND FEED.

Application filed January The invention relates to mechanism for driving and feeding a duplicating machine and for counting the printed sheets.`

` The object of the present invention is to enable an ordinary duplicating machine to be associated with afeeder and to be fed by the saine and to be diivenby the motor for driving they feederand to provide simple, practical and ecient mechanism of strong,

durable and comparatively inexpensive construct-ion adapted for automatically operating the throw oifmechanism of the duplicating machine for returning the impression or 7 platen roller to its printing position after the throw off mechanism has operated and moved the impression or platen roller to its inoperative position. i

A further object ofV the invention is to provide simple, practical and eilicient mechanism cooperating with and controlled by the throw on mechanism for actuating a counter for counting the printed sheets.

JAnother object of the invention is to provide counter actuating mechanism which will be automatically thrown into andy out ofop eration by the throw off and throw on inechaf nism whereby the counter will be operated onlywhen a. sheet isprinted so that the nuinber of printed "sheets willv be accurately7 counted. v v i i lAnother object of Ithe invention is to relieve the duplicating machine of the slight disturbances and wear on the gears thereof incident to driving the duplicating machine by interineshing a` gear of the driving mecha nism with a gear of the duplicating machine and thereby afford better printing.

lith these and other objects in view, the invention consists in the construction 'and novel combination and arrangement ofparts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the claims hereto appended, it being understood that various changes in the form, proportion and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings i Figure l is a side elevatio-n of` a feeder pronv videdwith duplicating machine driving and throw on and counter actuating mechanism constructed in accordance with this invention, parte of the feeder being removed for 5, 1927. semi No. 159,137.

convenience of illustrating the ,devices of the present invention.

Fig. 2 is an enlarged detail transverse sectional view partly in elevation illustrating the construction for connecting the driving mechanism with the ordinary operating liandlcr of a duplicating machine.

Fig. 3 is a side elevation partlyin section illustrating the construction ofthe throw. on mechanism for returning the rotary platen to its operative position.

Fig. 4 is anienlarged detail side view illustrating the construction of the counter actuating mechanism.

Fig. 5 is a detailsectional view illustrating the con struction ofthe ratchet device for connecting the driving shaftowithits pulley.

Fi g. (i isa detail sectional viewfillustrating the construction of the sectional sprocket wheel of the duplicating machine drive.

Fig. 7 is a partial side elevation of the opposite side of themachine from that` illustrated in Figure l.

Fig. 8 isa plan view of the duplicating machine receiving portion of the extension frame.

In the accompanying drawing in which is illustrated the preferred yembodiment of the invention l designates an electric motor for driving the feeder andfor operating the vacuum pump 2 thereof and for also actuating the duplicating machine drive forming a part of the present invention. The feeder is preferably of the continuous rotary suction noz zle type such as is illustrated and described in my co-pending application No. 146,499. As the particular construction of the feeder is not claimed in the present invention only so much 1of the construction thereof as is necessary to a full and complete understanding of the present invention will be shown and described.

The motor l which may be of any preferred construction is mounted upon the frame 3 vof the feeder at the bottom thereof as clearly illustrated in Fig. l of the drawing andit has mounted on its motor shaft a pulley 4 which is connected by a belt 5 with a pulley 6 fixed to the vacuum pump shaft 7; The pulley Gis a two step cone pulley which is connected by a belt 9 with a two step conepulley 10 of a transverse drive shaft 1.1 liournaled in suitable bearings. of the frame of the feeder and located above the motor. The pulley 4 isof less diameter than the pulley 6 and the pulley 6 is .of less diameter than the pulley 10.` The diameter of these pulleys may, of course, be varied to secure the desired reduction of the speed and a proper application of the power of the motor to the drive shaft.

The drive shaft 11 is connected by a ratchet device with the pulley to permit turning the duplicating machine 12 without turning the pump and the motor. The pulley 10 is loose on a drive shaft and is arranged between a set collar 18 and an arm 14 secured to the drive shaft by a set screw 15 or other suitabley means and provided at its outer portion with a lateral extension 16 having a. bore or open'- ing 17 in which is mounted a spring actuated dog 1S adapted to engage a ratchet tooth 19 of the pulley 10. The dog preferably consists of a pin mounted in the bore or opening 17 and a spring 2O is interposed between the inner end of the pin and the end wall of the bore or opening 17. The bore or opening 17 extends from the inner face of the arm 14 outwardly to within a short distance of 'the outer end of the lateral extension 16 and it terminates short of the outer end thereof to provide a seat or abutment for the coiled spring 20. One or more of the teeth 19 may be provided and they form a shoulder at one end and are beveled to the opposite end to permit the dog to ratchet over the teeth when the drive shaft is rotated in one direction independently of the'pulley 10. The rotation of the pulley 10 by the motor engages the tooth 19 with thedog and actuates the drive shaft. The ratchet device will permit an adjustment of the press in the feeder Without turning the motor and the pump.V

rThe

sprocket chain 22 which extends upwardly from the drive shaft to a sprocket wheel 23 of the suction disk shaft of the feeder and the said sprocket chain extends horizontally from the sprocket wheel 23 to a sprocket wheel 24 of a short transversely disposed shaft 25 which carries means hereinafter de scribed for actuating the duplicating machine 12. The sprocket chain after passing around the sprocket wheel 24 extends horizontally from the underside thereof to an idler sprocket pinion 2G mount-ed upon the frame of the feeder and located above the sprocket pinion 21 of the drive shaft. The sprocket wheels 23 and 24 are of the same diameter and in order to enable the time of the feeder to be changed to correspond with any cha-nge or adjustment of the duplicating machine the sprocket wheel 23 is composed of a hub section 27 and a rim section 28.1` The hub section which is suitably secured to the section disk shaft 29 is provided with a circumferential recess 30 in its outer face and the rim section 28 is clamped in the recess by means of nuts 31 engaging the threaded ends of screws 32 mounted on the hub section of the drive shaft 11 has mounted on it av sprocket pinion 21 which drives a roller sprocket wheel 23 and projecting from the front face thereof as clearlyy illustrated in Fig. 6 of the drawings. In practice the hub section of the sprocket wheel 23 constitutes the crank element lfor operating the mechanism for raising the platform upon which the stack of paper is placed.` When any change in the time of the duplicating machine is made inthe usual well known manner it is only necessary to loosen the two nuts 31 and change the time of the feeder to correspond with the change in the time of the duplicating machine press. y When kthe rim section is removed the disk or hub section may be rotated independently of the rim'scction and in practice suitable time markings will be' provided on the disk. 'lhisadjustment will enable the duplicating machine to vprint on different yportions, of the sheet according to the margins desired and when the rim section is replaced the starting of the sheets on the two machines will be in unison.

The duplicatingmachine is rigidly Ymounted uponcrossbars or members 33 and 34 or v frame members of an extension frame 35 formingan'extension of the feeder frame andy preferably composed of y side members and transverse connecting members. The side members are provided with suitable supporting legs 36 located at the outer or rear end of the extension frame. The extension frame which in practice will be provided vwith 'suitable vregister mechanism may be of any desired construction and is secured at its inner endy of the upper portion of the feeder frame by bolts 87iorother suitable fasteningdevicesl but the extension frame lmay be connected with the feeder frame in any other desired manner as will be readily'understood. The construction shown and described is advantageous in manufacturing, assembling and handling the feeder and the mechanism for driving andoperating the duplicating'ma-p chine. n

' The short transverse shaft 25 is journaled in a suitable bearing of a bracket 38 secured by bolts39 to one of the side members 35 of the'extension frame. yTheshaft 25 is "provided at its inner end with an arm 40 prefer'- abl consistin04k of a casing rovided at its inner end with a sleeve 41 to on the shaft 25 and havingspacedfianges or ears 42 at its'outer endforming an ,intervening recess to receive the hand crank 43 ofthe duplicating machine 12 whereby the drive mechanism is connected with the duplicating machine and is adapted to rotate the same. For convenience of adjustment and in order to enable the duplicating machine to be turned byA hand the shaft 25 is equipped at its outer end with ahand wheel 44. The hand wheel, the sprocket wheel and the driving arm 40 are suitably clamped to the shaft 25 and the bearing of the bracket which is extended laterally y as showniis equipped `with oil passages .for

igeelgesaf enabling the bearing to be lubricated. The, duplicating machine is readily mounted upon the extensionor register framefand its crank motor of the feeder isoperated motion will be t'ransmittedthrough sprocket gearing to th-e'shorttransverse shaft: andi the duplicat` I ing.- machine-will be positively driven witln out the use ofi` round.y belts or gearingmesh ing. with the gears of the-duplicating machine with the'resilient disadvantages ofsuchl a` drive connection where there is moreor less disturbances particularly when -tliegears begin to wear. Any wear or loosenessof thel gears will aifectthe printing andi all of this is eliminated byl the sprocket drive of the present invention;

The duplicating machinel 12 is equipped with the usualconstruction for moving the rotary platen' on impression roller toan= inoperative position to Vprevent itl f-romcoming in-` contact with the ribbonr or ink covered typewhenl the feeder fails to feed a sheet of paper t'o the duplicatingzmachinc. As thisis the ordinary construction with which the duplicating machine is equipped: a specific description:andfillustration ot the saine is unnecessary. The present invention contemplates meansfor returning the platen automatically to its operative position after vit has beenfmoved to an inoperative position by the duplicating machine when there isa f`aily ure to feed a sheet to the duplicating machine. This throw on mechanism,comprises in its construction a throw onuarin consisting. of a plate of cast metal or other suitable material secured tothe throw oil disk 461v of the duplicating machinev by the screws 47 which are employed infthe duplicating machine for securingthe Saidthrow oil' disk to the ratchet disk of the duplicatingmachine; The throw on. arm is'adapted tobe readily applied to the throw oil" disky by simply removing the screws 47 from the'throwf ofidislt. and then passing the. screvi'sxthrough suitable perforations 48=of thc'throw on arm.y The throwA on arm which is rigidly Connected with the throw olf; disk by the-said fastening4 devices 4'?I extends downwardly and rearwardly therefrom and is provided at itslower end with alaterally extending headed Stud 49-which is arranged in a longitudinal opening() of an operating rod 51 extending longi` tudinally of the machine and pivoted at its front en'dby a pin or bolt 52 to thelower end ofy an upright lever 53. The lever 53.' which is fulcrumed` intermediate of itsA ends on a suitable pivot 54-of` the feeder framev has upper andlower arms and theupperarm` carries a roller 55 mounted on a suitable `pivot 56 of the lever and engaged by a rotarycam 58 mounted on the suction disk shaft 29.

- rlhe roller 55 of the cam actuated' lever is maintainedl in` engagementA with the cam` 58` by a: coiledy spring 5S-)connected at one end tothe lower end of the lever andat its other,

end to one-of the side members 35 of` the extension` or register frame. llhe spring `1s preferablyl secured to the ypin or bolt 52`and toy a cross; shaft 60` of the extension frame.

When the feeder is in operation thecam 584 rotates continuously and oscillatesthe lever 53` which reciprocates the operating rod 5l. When the rotary platen of the duplicating machine isiin operative positionand the operatingerod 5l' is at the limit of its rearward movement asv illustrated in F ig.. 3 of the drawing the stud 49 is spaced a shortdistance from the rear end of the longitudinal opening 50 of the operating rod to `permit thc necessary movement of the throw on arm and the throw off mechanism andthe operatopeifation o t thethrow off meehanismby the duplicating .machine mechanism. lVhen, however, the throw off mechanismisoperated bv the mechanism ofthe duplicating.` machine through failure vtofeed a sheet tothe duplicating machine the stud 49fwillb`e1carried from the position illustrated-in full lines 1 inFig. of the drawing to the position illus-` chine and the operation of the throw olf mechanism 1sl welly understood in the part,

specific description andy illustration thereof are unnecessary. rFhe operating rod is pivotally connected at its frontend to thelower end of the cam actuated lever and its rear portion-is adaptedA to move up and down with the stud 49 in the arcuate movement thereof to and from the dotted line position 'illustratedinl Fig. 4. While the longitudinal.

opening50 is shown in the accompanying drawing as formed by a bend or loop of the rod 5l such a slotfor opening may of course be provided in any other desired manner as will be readily understood.

The headed stud 49 of the throw on plate whenin its `normal operative position forms a fulcrum for the rear end of the lever 6l arranged approximately in a horizontal position and' extending longitudinally of the machine and` pivotally connected by a bolt 62 or other suitable pivot to the lower end of a rod 63 andthe latter extends upwardly from the lever 61 and is pivotally connected at 64 to an arm of a counter adapted to count the number of sheets printed by the duplicating machine.k The lever is pivotally connected in-` ing rod 5l reciprocates without affecting-the suitable form of pivot to a vertically reciprocating rod 67 pivotally connected' aty its upper end at 68 to an approximately horizontal cam actuated lever `69. The vertically reciprocating rod 67 is mounted at its upper portion in a guide 70 and is guided at its lower portion by a screw 71 operating in a slot 72 extending longitudinally of the rod (37. The rod 67 which maybe guided in any other suitable manner is urged upwardly by a coiled spring 78 disposed on the upper portion of the rod and interposed between the guidel 70 and a pin 7i or other suitable device carried by the vertical reciprocating rod 67. The spring 7 3 maintains the lever 69 in engagement with a cam 75 mounted on the shaft 25 and rotating with the dtuilicating machine so that the counter will be operated at each rotation of the printing drum of the press. When the platen is in its normal operative position 'the' lever 69 is moved downwardly by the cani 75 during each rotation of the printing drum and the downward movement of the cam actuated lever moves the rod G7 downwardly and the latter transmits movement to the lever 61 which is fulcrumed on the stud 49.' This operates the counter 76. The cam actuated lever is moved upwardly by the spring which returnsl the parts Aof the counter actuating mechanism to their initial position ready for a kSecond operation of the counting mecha-- nism. The cam actuated lever 69 which eX- tends longitudinally of the machine is pive oted at its rear end at 77 to an ear 78 of the bracket- 38 by a boltcor other suitable pivot and the said lever G9 is provided intermediate of its ends with a roller 79 arranged to bea-r against the cam and ladapted to be actuated by the same to swing the lever 69 downwardly for operating the counter. Should the feeder fail to feed a. sheet to the duplicating niachinefthe throw off mechanism of the latter will swing the arm 47 rearwardly beyond the rear end of the lever 6l and the latter will'r then fulerum on the pivot 62 and idle without operatingthe counter. The counter which may be of any desired construction will be operated only when the Stud is beneath the rear end of the lever 6l and the latter will its normal operative position. By thisconfr struction an accurate counting of the printed sheets is obtained and operation of the counter is prevented when a. sheet is not being` printed.

in the operation of the duplicating machine feed and drive, when the motor is operated motion is communicated through the. drive shaftll to the sprocket wheels 23 and 24 and the sheet feeding mechanism of the feeder and the duplicating machine will be opera-ted in timed relation. The sheetfeeding mchanism of the feeder comprises the rot-ary suction nozzle 80 and the oscilla-tory winding arm 81 which as explained in the aforesaid applica-y tion picks up a sheet from the stack, winds the same as explained in the aforesaid application andf'delivers the sheet to the rotary suction nozzle 80rwhic-hfpulls off the sheet from the stack and feeds the same forward to the duplicating machine 'The' duplicating machine operates in the usual manner and the ythrow off mechanismlthereof will be unaf fected by the throw on mechanism of the present invention during the' ordinary vOperation of the duplicating machine as the Opening in the rear end of the operating rod 5l permits the necessary play or movement of the'throw off platein the ordinary operation of the duplicating machine. Should, however, the duplicating machine miss a sheet the throw off platefwill move backwardly and rearwardly to thc dotted line position shown in Fig.y 4 and will be returned automatically to its operative position by the throw on mechanism as soon as a sheet is fedv to the duplicating machine. t will 'also he clear 'that only thesheets actually `printed lwill be vcounted by the counter as the operation thereof depends on the operative position ofthe throw off mechanism of the duplicating machine. The extension rframe which lmay be readily attached to the main frame of the feeder is vequipped at its outer end'with a folding table 82. rlhe folding` table 82 which is adapted to be swung downwardly out of the wayas shown isv equipped with' suitable means for supporting itin ahorizontal position for use to receive theprinted sheets from the duplicating-machine. The duplicating` machine is firmly held in position 'on the extension frame ofy the feeder by any suitable fastening means. f What is claimed is 1*.In a duplicating l machine drive and feed, the combination of a feeder having a motor andsheetfeeding mechanism, a duplicating machinesupported by the feeder, and a 'duplicating machine drive actuated' by the motor of the feeder and including ashaft havinga driving arm located at one side ofthe duplicating` machine and provided with ymeans for engaging the hand crank ofthe duplicating machine. f

l2. In a duplicating machine drive and feed, the combination of a feederhaving a motor and sheet feeding mechanism, a duplicating machine'supported by the feeder, a duplicating machine" 3lrive actuated by the motor of the feeder-and including alshaft having a driving arm located'at oneside of the duplicating ymachine and provided with spaced lugs u forming a recessv to receive the lhand crank: of the duplicating machine. i

i 3; Inka duplicating machine drive and feed, the` combination of ,a feeder 'having a motorand sheet feeding mechanism, a duplicating machine supported by the feeder, a duplicating machine rdrive actuated by the motor of thefeeder and including a shaft loiioy catedlat one side ofthe duplicating machine and provided at its inner end with'a driving arm yhaving meansfor engaging the hand crank of the duplicating machine, a hand operated device mounted on the shaft at the outer end thereof and a gear on the shaft between the driving arm and the hand op erated device forrotating` the shaft.

4;. Ina duplicating machine drive and feed, the combination of a feeder having a motor and sheet feeding mechanism, a duplicating machine supported by the feeder, a duplicat ing machine drive vactuated by the motor of the feeder and including a bearing bracket located at one side of the duplicating` machine, a shaft journaled in the bearing brack-` et and provided at the inner side thereof'vvith an arm having means for engaging the hand crank of the duplicating machine, and a gear mounted'on the shaft at the outer side of the bracket for rotating the shaft.

5. In a duplicating machine drive and feed, the combination of a feeder having a motor and sheet feeding mechanism, a duplicating machine supported by the feeder, a duplicating machine dri've actuated by the mot-or of ythe feeder and including a bearing bracket located at one 4side of the duplicating machine, a short transverse shaft mounted in the bracket in alignment with the shaft of the printing drum of the duplicating machine, a driving -arm mounted on the inner end of the shaft and provided with means for engaging the hand crank of the duplicatd ing machine, a hand operated device mount ed on the outer end of the short transverse shaft, and a gear mounted on the short shaft and located between the driving arm and the hand operated' device for rotating the short transverse shaft.

6. Ina duplicating machine drive and feed,

the combination of a feeder having a motor and sheet feeding mechanism, an extension frame, a duplicating machine mounted on the extension frame, a bearing bracketsecured to the extension frame Land located at one side of the duplicating machine, a short trans verse shaft journaled in the bearing bracket and provided With means forconnecting it with thev duplicating machine, and a gear connecting the short! transverseshaft with the sheet feeding mechanism of the feeder.

7. In a duplicating machine drive and feed,`

the 'combination'of a feeder having a motor and sheet feeding mechanism, a duplicating f machine supported by the feeder, and a duplieating machine drive including a short transshaft with the duplicating machine, and sprocket gearing actuated by the motor and connected With the sheet feeding mechanism of the feeder and the short transverse shaft for driving ythe duplicating machine in timed relation With the sheet feeding mechanism of the feeder.

9. In a duplicating machine drive andr feed, the combination of a feeder including a motor, a drive shaft, a pulley mounted on the drive shaft and actuated by the motor, a ratchetdevice connecting the drive shaft With the pulley and arranged to permit independent movement of the drive shaft, a duplicating -machine supported by the feeder and a `and a sprocket chain meshing With the sprocket gear of the drive shaft and with the said sprocket. Wheelsfor driving the duplicating.machine in timed relation With the sheet feeding mechanism of the feeder. Y l

ll.`In a duplicating machine drive `and feed, the combination of a feeder including` ing a motor located at t-he bottom of the feeder, sheet feeding mechanism, and a drive shaft located below the sheet feeding mecha- ,t

nism and actuated by the-motor, a duplicating machine mounted on the feeder, a short transverse shaft located at one side of the duplicating machine, sprocket Wheels connected with the sheet feedingmechanism'and with the transverse shaft, a sprocket gear mounted on the drive shaft and a sprocket chain meshing with the gear of the drive shaft and with thesaid sprocket wheels, and an idler sprocket gear located above the drive shaft and receiving the said sprocket chain. 12. Ina duplicating machine drive and feed, the combination of a feeder including a driveshaft and sheet feeding mechanism,

a duplicating machine mounted on the feed-` er, a short'transverse shaft located at one end of the duplicating machine and provided with means for connecting it With the same, sprocket Wheels of uniform size connected with the sheet feeding mechanismand with theshort transverse shaft, a sprocket gear connected with the drive shaft, and a sprocket chain meshing with the sprocket wheels and With the said sprocket gear for driving the duplicating machine in timed relation with the sheet feeding mechanism.

13. In a duplicating machine drive and feed, the combination of a feeder including icc Cil

sheet feeding mechanism, a duplicating machine having throw ofi" mechanism and mounted on the feeder, a duplicating machine drive connecting the duplicating machine with the sheet feeding mechanism and throw on mechanism actuated simultaneously with the sheet feeding mechanism and having a reciprocating member associated with the throw off mechanism and having means for engaging the same to return the platen to its operative position after it has moved to an inoperative position.

14. In a duplicating machine drive and feed,'the combination of a. feeder', a dupli-k cating machine having throw off mechanism,

a duplicating machine drive actuated by the feeder and throw on mechanism also actuated by the feeder and including ,a continuously reciprocating` member provided with means for engaging the throw ofi mechanism for returning the platen to its operative position after it has moved to an inoperative position.

15. In a duplicating. machine drive and feed, the combination of a feeder, a duplicating machine having throw off mechanism and throw on mechanism actuated by the feeder` and comprising a throw on plate connected with the throw off mechanism and a continib ously reciprocating member having means for engaging with thev throw onplate to return the platen to an operative position after it has moved to an inoperative position.

16. In a duplicating machine drive and feed, the combination of a feeder, a duplicating machine having throw1 off mechanism, a throw on plate mounted on the throw off mechanism and having a stud and ak continplate secured to the throw off mechanism of,

the duplicating machine, a reciprocating member provided at one end with means for engaging with the throw 0n plate lfor returning the platen automatically to its operative posit-ion, a rotary cam actuatedby the feeder and a lever engaged by the cam and connected with the reciprocating member for actuating the same. t i

18. In a duplicating machine drive and feed, the combination ofy a. feeder, a duplieating machine having throw off mechanism, a throw'on mechanism comprising a rotary cam actuated by the feeder, alever engaged` bythe cam, a Lreciprocating rod connected at one end withthe lever, and means'located at the other end of the rod and,cooperating with the throw' ofi' mechanism for autoinatii cally returning the same after the platen has moved to an inoperative'position. y

19. Iny ay duplicating machine drive and feed, the combination of a feeder, a duplicating machine yhaving throwfoff mechanism a throwion mechanism comprising a rotary cam actuated by they feeder, a lever engaged by the cam, a reciprocating operating rod pivv oted at one end to the leverk and provided at. its other end with a longitudinal opening, and a 'throw on platersecured tothe throw oifmechanism and having a stud operating in the said opening, said operating rod being arranged to return the platen to its operative position after the throw off mechanism has been operated. f

20, In a duplicating machine drive and feed, the 'combination of feeder having sheet feeding mechanism, ak duplicating mase i chine, a duplicating machine drive'connected withthe sheet feeding mechanism and with' the duplicating machine for operating the latter in timed relation withthe feeder, said duplicating machine having throw off mechanism, a `throw on mechanism comprising a continuously rotating cam connected with the sheet feeding mechanism,a lever engagedA by `the cam, a spring for Lmaintaining the lever in such yengagement anoperating rod i' pivoted at one end to the lever and provided atits other endwith a longitudinal opening and a throw on plate secured to the throw off mechanism of the duplicating machine and provided with a stud operating in the openreturning the platen to its operative position after the throw off mechanism has kbeen operated. f f y 21. In a duplicating machine drive and feed, the combination of a feeder, having sheet feeding mechanism, a duplicating may chine supportedvby the feeder, and a duplicating f, machine drive connecting the duplicating machine with the sheet feeding mechanism of the feederand includinga sprocket gear actuating the sheet feeding mechanism and` provided with a removable grim, section adapted to be'neplaced by a rim,

section of a differentk size to enable it vto correspondwith changes and adjustments of the duplicating machine. i y i 22. The combination of a duplicating machine having a throw off device, a counter, a counter operating mechanism actuated by the duplicating machine and lincluding a, lever, and a movable fulcrum carried by the throw off device andr arranged to be moved away from the lever tol permity the latter to idle wheny the duplicating machine is operated, and a sheet is not fed to the same.

ing of the operating rod, the latterbeing y continuously l reciprocated fory automatically y 23. The combination of a duplicating mad chine having a throw off device, a. counter', a counter operating mechanism comprising a lever connected with the counter, a movable ful-cram carried by the throw off device and normally receiving the said lever and arranged to be carried beyond the same by the throw off device in the operation thereof, a rotary cam actuated by the duplicating ma chine and means for transmitting motion from the rotary cam to thesaid lever.

24. The combination of a duplicating machine having a throw off device, a counter, a counter operating mechanism comprising a lever connected with the counter, a movable fulcrum carried by the throw off device and normally receiving the said lever and arranged to be carried beyond the same by the throw off device in the operationthereoia` rotary cam actuated by the duplicating machine, a reciprocating rod connected with the said lever and cam actuated lever connected withthe said rod and arranged to be engaged by the cam.

I25. The combination of a duplicating machine having a throw off device, a counter, a

counter operating mechanism comprising` a lever connected. with the counter, a movable fulcruni carried by the throw off device and normallyreceiving the said lever and ar- 'anged to be carried beyond the same by the throw off device in the operation thereof, a

reciprocating rod connected with the said lever, a cam actuated rod located below the said cam and engaged by the same and conn` nected with the reciprocating rod, and a coiled spring disposed on the rodand arranged to maintain the cam actuated leverin engagement with the cam.

26. The combination of a duplicating machine having a throw ofr" device, a rotary cam mounted on the shaft of the printing drum of the duplicating machine, a cam actuated lever engaged by the cam and pivoted at one end, a vertically reciprocatingrod pivotally connected with the other end of the said lever, means for yieldably maintaining the lever in engagement with the cam, a counter, an approximately horizontal counter actuating lever connected at one end with the counter and at a point intermediate of its ends with the reciprocating rod, and a movable fulcrum supporting the other end of the counter actuating lever and carried by the throw olidevice and movable therewith to a point beyond lthe counter actuating lever.

27. In a duplicating ymachine drive and feed., the combination of a feeder, a duplieating machine having a throw off device, a throw on element carried by the throw off device, throw on mechanism operated by the feeder for automatically returning the throw off device for an operation thereof, a counter, a counter operating mechanism actuated by the duplicating machine and controlled by the movement of the throw on element for throwing the counting mechanism into and out of operation.

QS. In a duplicating machine drive and feed, the combination of a feeder, a duplicating machine having a throw off device, a throw on element carried by the throw off device, throw on mechanism operated by the feeder for automatically returning the throw oli' device for an operation thereof, a counter, a counter operating mechanism actuated by the duplicating machine and including a lever normally fulcrumed on the throw on element, the latter being carried beyond the said lever by the throw off device in the operation thereof for throwing the counting mechanism out of operation.

In testimony whereof I affix my signature.

LESTER KYLE ALDRICH.

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