US1693986A - Feeding magazine for printing presses - Google Patents

Description

Deb. 4, 1928.

- 1,693,986 A. KLUGE ET AL FEEDING MAGAZINE FOR PRI NTING PRESSES Original Fi led Nov. 11. 0' 4 sheets-sheet 1 I fizonibrs Qbel h zu ge Ezra/ Ll Zzcgg Dec. 4, 1928. 1,693,986 4 A.KLUGE ET AL FEEDING MAGAZINE FON PRINTING PRESSES QN 'O j? v e riz ors abel Kluge I'rceval Kluge dfforneys Dc.'4, 192s.

. 1,693,986 A. KLUGE ET AL FEEDING MAGAZINE FOR PRINTING PRESSES- Original Filed Nov. 11, 1920 4 sheetsgheet 3 Qlae Z iCZuge Eneval Kluge Dec. 4, 1 928.

- 1,693,986 A. KLUGE ET AL FEEDING MAGAZINE F'OR PRINTING PRESSES Original Filed Nov. 11. 1 I 4 Sheets-Sheet 4 aii'rvz gys Patented bee. 4, 19 28."

UNI-TED STATES PATENT OFFICE.

ABEL KLUGE ANIJ ENEvAI. KLIIGE, on ST. PAUL, MINNESo'rA, ASSIGNORS, BY ivIEsNE ASSIGNMENTS, r0 ERA DTJEN & KLUGE, INCORPORATED, OF ST. PAUL, MINNE- SOTA, A CORPORATION OF MINNESOTA.

FEEDING MAGAZINE FOR PRINTING PREssEs.

Application-filed November 11, 1920, Serial No. 423,447. Renewed December 11, 1925.

A further object is to providea feeding magazine, having an elevator and easily pro polled mechanism for advancing the same; also means for quickly retracting said elevator.

Another object is to supply in a device of this nature, adjustable automatic means for regulating the lifting movement of the elevator, whereby the stock in the magazine is advanced in such manner asto prevent the feeding of the first sheet beyond a predetermined position.

A further object is to provide a magazine, as above, designed to advance a pack of uneven stock, such as pamphlets and the like, so that the first pamphlet of the pack will assume correct receiving position, regardless of the quantity or structure of said pamphlets in the pack.

With the foregoing and other objects in view, which will appear in the following description, the invention resides in the novel' combination and arrangement of parts and inthe details of construction hereinafter described and claimed. 7

In the drawings, Fig. l'is a front elevation of our'improved device Fig. 2 is a-plan View thereof; Fig. 3 is a sectional view taken on the line 3 3 of Fig. 2; Fig. 4 is .a similar view taken on the line;44-of Fig. 2; Fig. 5 is a detail elevation of the blower pipe and valve thereon; Fig. 6 is a sectional view taken on the line 66 of Fig. 1, said view illustrating a section of said pipe and particularly the opening therein and valve therefor; Fig. 7 is a perspective view in detail of the auxiliary lifting-plate and supporting reach therefor and Fig. 8 is an elevation of thesame as applied in use.

Our improvement includes an inclined table, an'inclined liftenplate slidable with respect to said table, mechanism for advancing the lifter-plate, means for retracting the same and mechanism for interrupting the operation of said lifter-plate advancing mechanism.

The table lO is carried 'at one end by an arm 11 pivoted horizontally on a post 12 adapted to be mounted upon the frame of a printing press. Legs 18 on the opposite end of the table 10 are provided to rest upon the press and support said end of said table,

when the same is in operative position. The table 10 is supported at an angle substanstially as shown in Fi 3, ribs or slides 14 on the face of said hlile being designed to receive a pack of sheets upon edge and slidably support the same. Upright frame members 15 and 16 are secured upon the table 10 near the ends thereof, said frames being formed with inner ways 17 to receive blocks 18, which areformed integrally with the elevator lifter-plate. 19. Said plate is held substantially at right angles with respect to the table 10 and forms a sliding back rest for a pack of sheets. The rear extremities of the frame members 15 and 16 carry a shaft 20 upon which guides 21 are adjustably secured. Said guides extend forwardly of said.,s'haft and pass through slots 22 in the lifter-plate 19. These guides are adjusted to suit the stock employed and are set to direct the sheets toward desired feeding posit-ion atthe forward. etlge of the table 10. r

The mechanism for advancing the lifterplatc 19'includes a drum 23 revolubly mounted upon a spindle 24 secured at its lower eX trernit-y to one endof the table 10. This drum is turned in reverse directions, as will soon appear, to wind in and pay out a chain 25, one end of which is secured to. said drum 23 near its upper end. Said chain is passed forwardly from the'drum 23 around a pulley 26 on the frame 10, thence rearwardly through an opening 27 in the lifter-plate 19 to, and around a pulley 28 mounted at the rear and on the end of Said lifter-plate adjacent to the frame 15, thence to a similar pulley 29 on the opposite end of the lifter-plate, thence around said pulley and forwardly through an opening 30 inthe lifter-plate 19, thence forbetween the head 36 ofsaid pin and the bottom of the pulley 26 yieldingly holds said chain bet'weenthe pulley26 andthe drum 23, thus minimizing the loss of power by friction, between said chain-and pulley.

The drum 23 is formed'with an upper re duced end orsleeve 37, upon which a ratchet wheel 38 iskeyedgl A disc 39 revoluble on the hub of said rateli'et wheel carries a pawl 40 on the lower margin thereof in position to engage the teeth of the ratchet wheel 38.

' An arm 41 on the disc 39 is attached toa rod 42, which is reciprocated by any suitable means in synchronism with the movement of an associated sheet feeding element such, forexample, as shown at X'in Figs. 1 and-'2. The rocking of the disc 39 by said rod 42 normally results in a step by step movement of the ratchet wheel 38 by the pawl 40, an anti-backing pawl 43 being mounted on the frame 15 and arranged to normally engage and lock said ratchet wheel against backward rotation. This step by step forward movement (counter clock-wise, Fig. 2) of the ratchet wheel 38 causes the drum 23 to rotate and the chain 25 'to be wound thereon. The winding in of this chain on said 'drum carries the lifter-plate 19 forward and advances a pack of sheets leaning-thereagainst. To retract the lifter-plate 19 for any reason, the usual object beingto replenish the magazine, we supply the following mechanism: Thls mechanism includes a spiral spring 44 turned twice upon a drum 45 freely revoluble upon the shaft 20. One end of this spring is, attached to the rear of the lifter-plate19 and the other end thereof is secured to the table 10.

9 Forward movement of the lifter-plate 19 is had against the tension of this spring th'roughoutits entlre length. We release the pawls 40 and 43 from the ratchet wheel 38 by means of a trip lever 46. This lever swings on the sleeve 37 of the drum 23 between stop pins 47 on a bracket 48 carried by the frame 15. said lever 46 being fittedwith two lifter-slides 49 and 50, one for each of the pawls 40 and 43, lVith said pawls removed from engagement .with the ratchet wheel 38, thespring 44 is free tooperate and draws the lifter-plate 19 rearwardly upon the table 10 to such extent as is permitted by the length of the chain 25. lVe supply means for unwinding the drum 23 to pay out the chain 25 and thereby relieve the spiral spring 44 of such work, when the ratchet 'wheel 38 is released. ,A coiled spring 51, "housed [within a knob 52 fixed to the sleeve 37 of the drum 23, is secured at its innerend tothe spindle. 24 and at its outer end to said knob 42. Rotation of the drum 23 to wind in and covering the spring compartment 54 in theknob 52 retains the spring 51 in said compartment. the drum 23, by hand, in a direction to wind in the chain and advance the lifter-plate. Such provision is advantageous since it permits of quick and easy adjustment of a pack to position, wherein the front sheet thereof rests closely adjacent to front guides 55 and 56 at the forward edge of the feeding table 10. Said feeding table is placed for use so that the first sheet of a packresting adjacent to said front guides 55 and 56 will stand in desire-d receiving position for a sheet feeding clement. Theguide'. 55 is permanently fixed to the forward edge of theta'ble 10, midway Said knob 52 serves also to turn 7 are mounted upon slides 57 adjustably secured upon a blow-pipe 58 carried beneath the forward margin of the table 10. Said blow-pipe is formed with an opening 59 in the upper side thereof, which opening registers with an opening 60 in thetable 10. A

valve 61 comprising anaperturcd collar 62 onsaid pipe 58 is set by a thrust rod 63. and controls the escape of air from the opening 59 in thepipe. Air, admitted under pres sure to the pipe 58 from any suitable source, 7 may be permitted to escape upwardly beneaththe first few sheets of a pack in such quantities as is necessary to separate said sheets.

Our pack lifting mechanism is designed to advance sheets of different stock to continuously supply the ordinary feeding mechanism, interrupting means being employed to dis continue the action of said lifting mechanism and thereby avoid advancing the pack too rapidly. A post 64 on a bracket 65integral a with the frame member 15 supplies a pivotal support for a lever 66, one end thereof passing in front of a pack of sheets on the feeding table 10, while the other end tern'linates in front of the disc 39. An auxiliary lever 67,

pivoted at one end upon said post64, is supplied at its free end \vitha roller 68 arranged to ride against a depressed cam surface 69 on the periphery of the disc 39. 70, threaded in vthe lever 66 and bearing against said auxiliary lever 67, provides for adjusting'the inner end of said lever 66 for- A set screw ward and backward. A spring 75 stretched between a pin 66 on the arm 66 and an an choring lug 76 near the center of the disc 39 operates through the screw 70 and lever 67 to yieldingly hold the roller 68 against the cam surface 69. 'A bell crank 71 is-also pivoted on the post 64. common tolsaid levers 66 and 67, and has a short arm 72 and a long arm 73. Said latter arm 73 is connected with the pawl 40 on the disc 39 by means of a link 74.

lill) pawl 40 and the consequent winding of the drum 23. This rocking of the disc 39, fur-- The shorter arm 72 is joined through a link 77 with an arm 78 on a gauge 79, said gauge being pivoted on the inner end of the lever 66. A stop 80 on said gauge limits-the rearward throw of the gauge paddle 81 and a bar spring 82, fixed to the lever 66 and bearing against said paddle, yieldingly holds said stop 80 in engagement-with said-lever 66. The rocking of the disc 39 normally causes the rotation of the ratchet wheel 38 through the j ther, causes the inner end of the lever 66 to swing forwardly from a pack on the table,

then rearwardly toward said pack. The forwardthrow of said lever, being timed with respect to themovement of the sheet feeding the operation of the pack lifting mechanism,

said pawl being thereby disengaged from the the first sheetof a pack reaches its predetermined forward limit, said sheet abuts against the paddle 81, upon the rearward throw of the lever 66, and results in the tilting of the gauge, which action is transmitted through the link 77, bell crank 71 and link 74 to the pawl 40,

ratchet wheel 38. By thus disengaging the pawl 40 from the ratchet wheel 38, the r0tation of'the drum 23 is arrested and the ad-' resumption of operation of the pack lifting mechanism. Aside from its operation in interrupting the action of the pack advancing nechamsm, thegauge-paddlc 81 tends to sepa- 7 rate the first sheet from the second sheet of a pack. Upon the rearward throw of the lever 66. preparatory to the taking of the first sheet,

" the gauge-paddle engages said sheet and,

wardly from a medial point on the uppcrmarginlof said plate, said arm being formed with a series of apertures 86 therein. A support for said plate comprises a curved reach 87 having a yoke 88 at its lower end, the branches of said yoke being notched to fit, as at 89, over the shaft 20. The upperend of said reach 87 is formed with an ear 90 having a threaded bore therein. A knobbed pin 91 having its .end threaded to fit said bore is adapted to pass through any one of the apertures 86 in the arm and pivotally join said arm with the reach 87. The yoke 88 straddles the pulley 15 and tilts upon the shaft 20. The

hooks 84 are caught beneath the-lower edge of the lifter-plate 19 and ride in grooves 92 between the ribs 14 on the table 10. The connection between therea ch 87 and arm 85 is made to obtain the desired inclination of the auxiliary plate 83, whereby upon its forward sweep,'caused by the' advance of the lifter-plate 19, the folded sheets, about to be received by the feeding mechanism, will assume proper receiving position.

In feeding light stock in high speed m'achines, the second sheet of a pack has a tendency to cling to the first sheet. In the absence of preventative devices, this second sheet, at

times, is lifted slightly and then clings to'the third sheet in elevated position as the first sheet is carried from the table. Said second sheet, at other times, is removed from :the table together with the first sheet. We. have supplied our feeding magazine with a sheet holder a to cause the first sheet of a pack, in the act of removal, to "be effectually freed from the second sheet and to prevent such displacement and removal of said second sheet. This holder employs as a support, the

upper end of the post 6 1, which is square in cross section, as will be observed in Figs. 1, 2 and 4. A block 93, slidable vertically on said post and adj ustably secured thereon by means of a set screw 94, is formed at its upper end with a journal 95. A collar 96, fitted to turn on said journal, carries an arm 97 reaching over the table 10 above its forward margin. A guide a, formed at the extremity of said arm, has an upper flange 98 and a forward depending flange 99. The block 93 is adjusted so that the guide a will embrace the upper forward edge of a pack of sheets (Fig. 3), the flange 98 resting above the first few sheets of the pack and the flange 99 resting in front of the first sheet. A spring 100, stretched between a pin 101'on the collar 96 and a pin 102 on the block 93, operates to yieldingly hold the-flange 99-against the face .of a pack of sheets. .A stop pin 103 in the block93, in the path of the pin. 101 on the collar 96', limits the movement of the arm 97 by the spring 100, so that said arm will not interfere With the replenishing of the magazine. Our holder functions best with theuse of a feeding mechanism adapted to first grasp the lower margin of the first sheet in a pack,.then lift the same slightly beforethe commencement of its throw toward the printing couple. In

such an operation as this, the flange 98of the guide a prevents the vertical displacement of the second sheet, thus insuring its subsequent proper engagement with the grips of the feeding mechanism and its consequent proper placement on the receiving member of the printing couple. Said flange 98 also-acts as a stop for the upper edge of the first sheet and causes said first sheet to buckle, as its lower margin is raised, preparatory to the removal of said sheet from the magazine. This buckling of the first sheet effectually frees it from the second sheet, a substantial air $ace being formed between the two sheets. he guide a yields forwardly and compensates for different feeding positions of the fiist sheets and may be raised or lowered to suit sheets of different Width by the adjustment of the block 93 on the'post 64.

Changes in the specific form of our inven tion, as herein disclosed, may be made Within the scope of what is claimed without departing from the spirit of our invention.

Having described our invention, whatwe claim as new andde'sir'e to secure by Letters Patent is:

'- 1. The combination with a sheet feeding element adapted to receive and" take, sheets from a given receiving position, of a support for a pack of sheets, a plate for advancing the v pack on said support, mechanism for moving the plate and tripping means, operative during the intervals between the taking of sheets.

' from the support, said tripping means being actuated by the first sheet of the pack, in case actuated by the pack for interrupting the 210- tion of said mechanism. 7 v

2. The combination with a sheet feeding element adapted to'receivesheets at a given receiving position, of an inclined support ada ted to receive a. pack of sheets on edge, a 1i er-plate for advancing thepack on said support, ratchet driven mechanism for moving the lifter-plate, an intermittently operative, yielding gauge connectedwith said mechanism and adapted to render the same inoperative, said gauge bemg located so as to be that the operation of said mechanism advances said sheet beyond a predetermined position.

3; The combination with a sheet feeding element adapted to receivesheets at a given 7 receiving position, of an inclined support adapted to receive a pack of sheets on edge, a lifter-plate for the pack, mechanism for advancing the lifter-platest-ep by step, a

' gauge, a support for the gauge, saidgauge being adapted to be shiftedv by the pack to limit the advancement thereof, said gauge being connected with said -mechanism and designed to render the same inoperative, and means for swinging the support to withdraw the gauge from the pack when said feeding element is in receivingposition.v

4; The combination with a sheet feeding element adapted to receive sheets at a given receiving position, of an inclined table for carrying a pack of sheets on edge, an inclined lifter-plate-supplying a slidable back rest for said park, a rocker member, a revo- V luble element to which movement is imparted by saidrocker member, connecting means between said revoluble element and lifter-plate for advancing the latter and means for retracting said lifter-plate.

The combination with a sheet feeding .element adapted to receive sheets at a given with said sheet feeding element and designed to shift the pack advaneer, also to swing said gauge support toward and from the a pack, the removing throw of said support permitting ofthe removal of a sheet from the a pack by said feeding member, and connecting means 'between said gauge and mechanism for interrupting the'operation of the latter when said gauge is shifted by the pack upon said support.

6. The combination with a sheet feeding element adapted to receive sheets at a given receiving position, of an inclined tablefor carrying'a pack of sheets on edge, a sliding back rest for the pack designed to assume various angular positionsto suit the inclination of folded sheets of difl'erent stock and means for advancing the back rest to shift the pack and place the first unit thereof in receiving position, said back rest being adapted to approach parallelism with the given sheet'receiving position in its forward.

movement upon the table.

7. The combination with a sheet feeding element adapted to receive sheets at a given receiving position, of an inclined table designed to slidably support a pack of sheets on edge, an inclined lifter-plate supplying a sildable'bac'k rest for said pack and adapted to advance'thefirst sheet of the pack toward receiving position, a rockenmembeig'a revoluble element including a ratchet wheel fixed thereon, a chain connecting the revoluble element with the lifter-plate and adapted to advance the formerwhen wound in upon the latter, a pawl on the rocker member for driving the ratchet wheel, an anti-backing pawl also engaging said ratchet wheel, a tripping device for simultaneously disengaging said pawls from said ratchet wheels, a coiled spring connected with the revoluble element and energized by the rotation therco in ad vancing the lifter-plate, said spring being tion of the lifter-plat ed to advance the first sheet of the pack toward receiving position, a rocker member, a"

revoluble element including a ratchet wheel fixed thereon, connecting means between said revoluble element and lifter-plate for shifting the latter, a pawl on the rocker member for driving the ratchet wheel, an antibacking pawl also engaging said ratchet wheel, a tripping device for simultaneously disengaging said pawls from said ratchet wheels and a coiled spring connected with the revoluble element and energized by the rotation thereof inadvancing the lifter-plate, said spring. being adapted to turn said revoluble element in;a direction permitting the retrac- 9. The combination-with a sheet feeding element, adapted to receive sheets at a given receiving position, of an inclined table de-- signed to slidably support a pack of sheets on edge,an inclined hfter-plate supplying a slidable back rest for said pack and adapted to advance'the first sheet of the pack toward receiving position, a drum, a chain attached near one end of the drum and joining the same with the lifter-plate, pulleys to guide said chain, means for turning the drum in one direction to wind the chain thereon and advance said lifteiyplate, the pulley adjacent" said drum being fioatable upon an axis parallel with the axispf the drum, a spring to turn said drum in a dlrection to pay out said chain,

said) spring being arranged'to be tightened when the: drum is rotated to wind in said chain. v a

10, The combination with a sheet feeding element adapted to receive sheets at a given receiving position, of an inclined table designed to slidably support a pack of sheets on edge, an inclined lifter-plate-supplying a slidable back rest for said pack and adapted to advance the first sheet of the packtoward receiving position, a drum, a' chainjoining the drum and lifter-plate, pulleys to guide sa i'd chain, means for turning. the drum in one direction to wind the chain thereon and advance said lifter-plate, a spring'to turn said drum in the reverse direction to pay out said chain, said spring'being arranged to be tightened when the drum is rotated towindin said chain, and a spring interposed between the lifter-plate and table for retracting the former.

' 1,1. The combination with a sheet feeding element adapted to receive sheets at a given,

. said pulley receiving position, of an inclined table for carrying a pack of sheets on edge, an inclined lifter-plate supplying a slidable back rest for .said pack, a rocker member, a revoluble element to which movement is imparted by said rocker member, connecting. means between said revoluble element and lifter-plate for advancing the latter, an auxilia plate detachably connected with said li ter-plate and adapted to be swept forward and backward on the table by the movement of said plate, an upwardly and rearwardly extending arm on the auxiliary plate, a reach having a pivotal support at its lower end on the table and an adjustable pivotal connection at its upper end with the arm on the auxiliary plate, said auxiliary plate being adapted to swing from greater or less angles with respectto the lifterplate toward position parallel with said lifter-plate during 'its forward movement.

.12. The combination with a sheet feeding element adapted to receive sheets at a given receiving position, of an inclined table designed to slidably sup ort a pack of sheets on edge, an inclined li ter-plate supplying a slidable back rest for said pack and adapted I to advance the first sheet of the pack'toward receiving position, a drum, a chain joining the drum and lifter-plate, pulleys to guide said chain, means for turning the drum in one direction to wind the chain thereon and advance said lifter-plate,' and. a spring to turn said drum in the reverse direction to pay out said chain, said spring being arranged to be tightened when the drum is rotated to wind in said chain.

' 13. In a device of the class described, an inclined table designed to slidably support a pack of sheets on edge, an inclined lifterplate having slots therein, said lifter-plate supplying a slidable back rest for said pack,

guides adjustably mounted at the rear of the table and passing forwardly through the slots in said lifter plate, means for advancing the lifter-plate, a freely revoluble pulley at the rear of the table, a spiral spring attached at one end to the lifter-plate and at its other end to the table, said spring being passed around and adapted to retract said lifterplate. a

14;. In a device of the class described, an inclined table designed to slidably support a pack of sheets on edge, an inclined lifterplate, said'lifter-plate'supplying a slidable back rest for said pack, means for advancing the lifter-plate, a freely revoluble pulley at the rear of'the table, a spiral springattached at one end to the lifter-plate and at,

its other end to the able, said spring being passed around said pulley and adapted to retract said lifter plate.

15. The combination with a sheet feeding ios element adapted to receive sheets at a given receiving position, of an inclined table designed to slidably support a pack of sheets on edge, an inclined lifter-plate supplying a slidable back rest for said pack and adapted to thrust the first sheet of the pack toward receiving position, a rocker member, :1. revoluble element to which movement isu nparted in one direction by said rocker member, a

, flexible connecting medium between said revoluble element and lifter-plate and pulleys to guide said flexible medium so that the winding of the same upon said revoluble element advances said lifter-plate.

16. The combination with a sheet feeding element adapted to receive sheets at given sheet receiving position, of an inclined support adapted to receive a pack of sheets on edge, a lifter-plate for advancing the pack on said support, and a yielding, oscillatory stop carried above the upper edge of the first and adjacent sheets of the pack, said stop serving to prevent the vertical displacement of said sheets by said sheet feeding element.

17. A pack advancing support and a yielding guide for embracing one of the forward edges of a pack on said support, said uide bein adjustable to suit sheets of di erent widt s and adapted to prevent edgewise displacement of the first and adjacent sheets of a pack, when the former is removed from the pack in feeding.

18. A sheet feedin magazine including a tiltable packrest and means for advancing the rest, said means serving also to progressively adjust the rest angularly to suit diminishing packs of folded sheets and to present the uppermost unit of a pack in given feeding position. 19. A sheet feeding magazine including a pack rest and means for advancing the rest, said rest being initially angularly adjustable to suit a given pack of folded sheets, said rest advancing means serving automatically to progressively adjust said rest angularly to present the up ermost unit of a diminishing pack in given ceding position.

20'. A sheet feeding'magazine comprising an inclined table for carrying a pack of sheets on edge,an inclined lifter-plate supplying a slidable back rest for said pack, means for advancing the lifter-plate, a blow pipe open ing beneath the forward margin of the table and adjustable front guides slidably mounted on said blow ipe.

I 21. In a device of the class described, a

pack advancer, mechanism for moving the gange during gaging said member with said element on one throw of the former, connecting means between said revoluble element and rest for ad vancing the latter and tripping means actuated by the foremost sheet of the pack for rendering said engaging means inoperative, the position of said trippin means being controlled by said rocker member, whereby upon the return throw thereof the foremost sheet may be freely taken from the pack.

23. The combination with a sheet feeding element adapted to receive sheets at a given receiving position, of an inclined table designed to slidably support a pack of sheets on edge, an inclined lifter-plate supplying a 'slidable back rest for said pack and adapted to thrust the first sheet of the pack toward receiving position, a rocker member, a revoluble.element to which movement is imparted in one direction by said rocker member, and a flexible connecting medium between said revoluble element and lifter-plate, said me dium being adapted to be wound in by said revoluble element to advance the lifter-plate.

24. The combination with a sheet feeding element adapted to receive sheetsat a given position, of a movable member for advancing a pack of sheets, said member being designed to assume various angular positions to suit the inclination of folded sheets of dif- 'ferent stock, and means for advancing said member to shift the pack and place the first unit thereof in receiving position,';jsaid member being adapted to tilt, in moving'forward, and swing toward parallelism wi aid given sheet receiving position. a

25. The combination with a sheet feeding element adapted to receive sheets at a given receiving-position, of amovable' member for advancing a pack of sheets to present the first sheet thereof in such receiving position, a rocker-member, a revoluble element to which movement is imparted in one direction by said rocker-member, means countering the movement of said element in a reverse direction, a medium connecting said member with said revoluble element adapted to be wound in on the latter for advancing the former, and a device for rendering said countering meansinop'crative to permit ofthe unwinding of said medium from the revoluble element and the retraction ofsaid pack advancing member. v

26. In combination, an inclined table ios adapted to slidablyisupport a pack of sheets on edge, an inclined lifter-plate su l 'n a slidableback-rest for said pack, s id ba ckrest having a horizontal slot therein, a support at the rear of the back-rest, and a sideguide for the pack movable through said slot and adjustably mounted on said support;

27. In combination, an inclined bottom rest and an inclined back-rest for supporting a pack of sheets on edge, the back-rest being movable, a side-guide for the pack'land means 13 position, of an inclined bottom rest for movably supporting a pack of sheets on edge, an

inclined movable back-rest for the pack,

mechanism for advancing the pack, step by step, to present the foremost sheet thereof at said given sheet receiving position, and hipping means, operatlve during the intervals between the taking of sheets from the sup- 1 port, said tripping means being actuated by the foremost sheet of the pack for interrupt ing the action ofsaid mechanism.

- In testimony whereof, we have" signed our 20 names to this specification.

ABEL'KLUGE. ENEVAL KLUGE.

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