US708741A

US708741A - Sheet-delivery mechanism.

Info

Publication number: US708741A
Application number: US68885498A
Authority: US
Inventors: Walter Scott
Original assignee: Individual
Current assignee: Individual
Priority date: 1898-08-18
Filing date: 1898-08-18
Publication date: 1902-09-09
Anticipated expiration: 1919-09-09

Description

Patented Sept. 9, |902.

W. SGUTT. VSHEET DEL| VERY MECHANISM.

(Application filed Aug. 18; 189B.)

4 Sheets-Sheet l.

(No Model.)

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Im4708141. Patented sept. 9, |902.

; w. scoTT. y

s HEET DELIVERY MEGHANISM.

(Application med Aug. 1e, 1139s.) (No Model.) f '4 sheets-sheet 2.

www awe@ No. 708,74I. Patented Sept. 9, |902.

W. SCOTT. SHEET DELIVERY MECHANISM.

(Application led Aug. 18, 1898.)

4 sheetssheet 3.

(No ModeL) I Mventoi M12/@fd lt/minuit @VH1/leones aan l 4 No. 7o8,74|. Patented Sept. 9, |902.

' w. scoTT. SHEET DELIVERY MEGHANISM.

(Applimmn mea ng. 1s', 169s.)

dgl/1 N UNITED STATES.

- PATENT OFFICE.

WALTER SCOTT,v OF PLAINFIELD, NEV JERSEY.

SHEET-DELIVERY MECHANISM.

' sPnCIFmAToN forming part of Letters Patent No. 708,741', dated september 9, 1902.

Y Application led August 18, 1898. Serial llo. 688,854. No model.) y

To 'all when@ t may con/cern: Be it known thatI, WALTER SCOTT, 'a'citizen of the United States, and a residentuof Plainfield, in the county of Union and State of New Jersey, have invented certain new and nsefnllmprovementsin Sheet-Delivery Mechanism, of which the following is a specification.

Thisinvention relates to mechanismV for' delivering sheets on delivery-boards,and more especially that class of mechanism wherein the sheets are run out dat and then dropped devices hereinafter'more fully described, and

` more particularly pointed out in the claims y elevation in Fig. 8.Y

concluding this specification.

The preferred form of the invention is illustrated in the accompanying drawings, forming part of this specification, in which- Figure 1 is a side elevation of part of a machine, showing a sheet-stop, `upper and lower movable grippers, a sheet-support, and operating mechanism for the parts. Fig. 2 is a cross-section of one sideof the frame shown in Fig. 1 and showing certain of `the parts shown in Fig. 1 and also part of the operating mechanism. Fig. 3 is a diagrammatic side view showing the position of the grippers and sheet-stop at the moment a sheet is run in between the grippers. Fig. 4 is a 'like view showing the positions of the parts when the grippers close to grip the sheet between them. Fig. 5 is a side elevation, partly broken away, to show the working parts behind of a mechanism embodying the automatic slip-inserting feature of my invention. Fig. Gis a plan view of certain features of one form ofmy invention. Fig. 7 is a detail View of certain features shown in side Fig. 8 isa side elevation, partly broken away to showworking 'parts behind of a modification of themechanism shown in Fig. 5. Fig. J is a side elevation showing an arrangement of gearing for driving the feed-cylinder shown in Fig. 8.' Fig. 10 is a cross-section of a pulley and a shaft, showing a yielding connection between the pulley and' shaft. Fig. llis a longitudinal section of the same device. Fig. 2 is aview,

partly in cross-section, -of a modification. V

Fig. 13 is-a longitudinal sectionalview showing a modification of the same. Fig. 14 is a diagrammatic View showing a modification of Vthe sheet-stop and gripper mechanism.

Fig. 15 is a diagrammatic View showing a different relative arrangement of the gripper mechanism.

The same part will be found designated byV preferably one such pin-and-hole connection at each side of the board. By lfting'up the end of` the board the pins are withdrawn from the holes, and the board may then be slid along on the bars, as toward the cylinder, the pins resting on the bars. This arrangement provides for getting at the inking apparatus 4without hindrance from the overhead delivery-board.

O indicates the impression-cylinder, which may be driven in any usual or suitable way. Y

It may oscillate, revolve continuously, or stop, as circumstances may require. The sheets may be fedto the cylinder C in any suitable or desired manner and are`then delivered thereby upon the `IiXed guides 4 and between the sets of tapes 5 6. The tapes 5 are carried by the rollers or pulleys 7 8, the rst of which are journaled in the frame ad- -jacent the impression-cylinder C and the second of which are journaled inthe fram'eat a distance from the cylinder C. In some cases yit is advisable to provide that the sheet shall not be lifted Ior blown from the tapes 5, and foi-'the purpose of preventing such mishap the'tapes G are provided. By preference the tapes 6 only bear upon the margins of the IOO sheets. The tapes 6 are carried by rollers or pulleys 9 10, the first of which are journaled over the pulleys 7 and the second of which are shown as being journaled in the frame over the pulleys 8. The tapes 5 6 are driven in any suitable way. (Not shown.) From the rollers or pulleys 8 1() the sheets are in the specific embodiment of my invention shown in the drawings, Figs. 1, 3, 4, and 5, run upon the web or ribbon 11, of fabric, one end thereof being fast to the cross-bar 12 on the fixed frame of the machine and the other end thereof being fast to a hollow roller 13 on a to-and-fro-movable carriage. This carriage is composed of end pieces 14, (but one is showin) which are tied together by means of a bar 15, fast at its ends to lugs 16 on the end pieces 14, and a bar 17, fast at its ends to the said end pieces. The end pieces 14 are provided with suitable bearings for a shaft 18, on which the roller 13 is loosely mounted, so as to turn independently thereof, and with bearings for the ends of a bar or shaft 19, which carries part of the sheet-gripping mechanism, as will presently appeal'. The shaft 19 lies between the roller 13 and the bar 15 and is provided with an arm 2O below it. The arm 20 is bent, as shown, and is provided with an antifriction-roller 2l and with astud or bearing 22, on which a bar 23 is provided. The adjacent end piece 14 is provided with a perforated lugr 24, through which the har 23 projects. A spring 25 is coiled around the bar 23 between the lug 24 and the enlarged end thereof, which is pivoted upon the stud 22 and acts to press the arm 2O away from the lug 24. The arm 2O is stopped when free to move by coming in contact with a lug 16 or an adjustable stop 26, passing through the bar 15 and the lug 16, or any other adjustable stop may be used. By preference the gripper carried by the bar or shaft 19 is in the form of a continuous bar or plate 27, though this may be replaced by two or more flat bars or grippers. The gripper 27 is in front of a sheetstop 28, which is secured to the bar 15 and projects above the same. When the bar 19 is free to movennder the influence of spring 25 and the arm 2O is stopped, as described, the top surface of the gripper 27 is flush with or slightly above the top of the stop 28, or it may be held Hush with said top and afterward be raised slightly above the same, all as will hereinafter more fully appear. By rocking the shaft 19in one direction the gripper 27 may be depressed below the top of the stop 28. Above the stop 28 is the gripper or set of grppers 29. This set of grippers is borne by a shaft 30, which is journaled in arms 3l from the shaftor bar 17. The shaft 3 0 is provided with an arm 32, to the end of which a rod 33 is pivoted. The other end of rod 33 passes loosely through a lug 34 on the adjacent end piece 14, between the enlarged end of the pivoted end of-the rod 33 and 'the lug 34, and tends to move the shaft 30 one way or the other, according as the pivot connecting the arm, 32 and the rod 33 is above or below the line joining the centers of shaft 30 and the hole in lug 34, as will be understood. The shaft 30 is also provided with an arm 36, by which it is moved or rocked when it is desired to open or to close the grippers 29. This arm 36 has a lug 37 at one side thereof for coaction with a xed or adjustable abutment 38 on the frame A and with an arm 39, to which an antifriction-roller 40 is attached. The abutment 38 acts to close the gripper 29 down upon the top of stop 28, and a lifter 41 coacts with the roller 40 to raise the grppers 29 from said stop-top. The lifter 41 is preferably an arm on a shaft 42, which is suitably journaled in bearings on or borne by the frame A. The shaft 42 is rocked at suitable times to cause the arm 41 to lift the roller 40 and so cause the shaft 30 to rock until the pivot-connecting arm 32 and rod 33 is above the line of centers referred to above, Whereupon the springr 35 completes the motion of the shaft 30. The shaft 42 is provided with an arm to which a rod 43 is pivoted. `The rod is connected with a suitable cam or other part, (not shown,) by which it is moved at the appropriate times to cause the arm 41 to rise, as above described.

The hollow roller 13 may be rotated in any suitable manner, as by means of the fabric 11 and a tape 44, which may be secured to the roller at one edge of the fabric and to a roller or pulley 45, which is journaled on the framework A and is connected therewith by a spring coiled about the shaft on which the pulley is journaled and having its ends fast to the frame and to the hpulley, (spring not shown,) as in my pending application for Letters Patent tiled the 19th day of May, 1897, Serial No. 637,173.

The carriage carrying the roller 13 may be reciprocated by any suitable mechanism, such as shown in several prior applications of mine, and one of which is partly shown herein. The end pieces 14 are provided with rollers 46, which run on the smooth backs of a pair of racks 47 (but one is shown) at the sides of the machine. The shaft 18 is provided with pinions 48 at its ends (but one such pinion is shown) which mesh with the racks 47. The shaft also has a pinion 49 fast thereto at one end, and this pinion 49 meshes with a reciprocating rack-bar 50, which is suitably guided on the frame A. The rack 50 is driven to and fro by means of a gear 51 on a shaft 52, journaled in frame A. The shaft 52 is provided with a second gear 53, which is driven by a reciprocating rack 54, working in a guideway 55, bolted t0 the frame A in an oblique position, and driven from a crank or cam. (Not shown.)

The operation of the foregoing devices is as follows: The sheets are run out by the tapes 5 o' onto the web 11 and between the

grippers

27 and 29, which atV this time are in the relative positions shown in Fig. 3 and against the stop 28. The sheets may reach the stop 28 at the moment the carriage is rc- IOO Droar-11 'versing its motion or at any time thereafter prior to the time when the roller 2l runs from under the cam 56, and so permits the spring Lotherend thereof.

25 to move the gripper 27 up against the gripper 29, as shown in Fig. 4. After the closing of the grippers the Vsheet `is drawn out over the supporting-Web 11 -until the carriage reaches the limit of its movement away from the impression-cylinder C. As the carriage comes to rest or While it is at rest the lifter 41 raises the-roller 40 and. rocks shaft 30, as described,vto open the grippers y29-that is,

these grippers are lifted from the.r top of the stop 28, and the sheet is now free to pass over the stop and onto the board B during the return movement of the carriage. Accordingly as the fabric `ll is now wound up on the roller lthrough the action of the tape 44 the sheet drops, head first, onto the boardB and against the end stop 57. reaches the end of'its` return movement the arm-36 or lug 37 is acted upon by the abutment 88, andthe gripper 29 is thrown down against the top of the stop 28, while the grip' per 27'is moved down by the cam 56 in ample time for the sheetto be run out, as in Fig. 3.

The devices shown in Fig. 5 will now be described. The means for running out thev be fed by hand to the grippers 58 and bar 15X' a feed-board 59 is provided, and the shaft carrying the grippers 58 is placed so that the bar 15X is between it and the shaft 18X. theparts having the superior X are or may be identical with the like parts hereinbefore described and referred `to without the superior X to their references, and therefore do not need further description.) The carriage for'the slip-sheet-delivering mechanism may be driven independently or it may be connected at each side to the end piece 14, as by the bars 60 and the screw-bolts 6l, connecting the bars with the end pieces 14. The

grippers 58 may be opened and closed in any.` suitable way. Thus they may be connectedl with the grippers 29, as by a rod 62, which isv pivotally connected with arms on the shafts of the said,

grippers

29 and 58. `The slipsheets are dropped on the board B and against a stop 63 in substautially'th'e same manner as the sheets from the printing-press. It will be observed that the two mechanisms deliver' their sheets in alternation, one beginning at one end of the board B and .the other at' the printing-press vary in length.

As the carriage The feed-board 59 may and their carriage to have the proper position' to drop -the slip-sheets (of nearly the same length of printed sheets) upon the printed sheets on the board B. In Fig. 8 the feedboard 59 is replaced by a feed-cylinderv64, which is journaled in brackets 65, bolted to the top -of frame A at each side of the machine. The cylinder 64 is provided with grippers 66, which are operated at suitable intervalsbyanyappropriate means. (Notshown.) The sheets are fed to the cylinder 64 from a feed-board 67 above the same and pointing away from the cylinder C, (the board 59 points toward said cylinder 0,) thus saving space as `compared with the arrangement in Fig. 5.'

rThe slip-sheets are -fedby hand from the board 67 to the grippers of cylinder 64 and are delivered by the grippers 66 to the grippers 58 and bar 15 at the moment these begin to move toward the cylinder C. The cylinder 64 is driven by any suitable mechanism (not shown) and takes the sheets from the board 67 and delivers them to the grippers 58 and bar 15X, the cylinder being so'driven at this time as will secure that the slip or other sheets shall be taken byv the reciprocating delivery without undue strain being brought upon the sheets. For this purpose a cylinder 64'may be caused to move at the same speed as the 'reciprocating and delivery mechanism during the time it is delivering the sheet thereto. At other times the cylinder 64 may be at rest or move progressively, as may be desired. The cylinder 64 andV board 67 may `be adjusted toward and away from the cyllto another set of threaded yholes 69 and at'- taching the brackets there to the frame A and' Lalso changing rods 60 and 63 for others of the proper length.

In the modification illustrated-in Fig. 14 the stop-plate 28 is provided with notches 70, 0pposite the gripper-s 29-that is, thegrip'pers 29 are not stopped bythe `stop-plate, but by independent means, as a stop 71 in thefpath of the arm 36. The gripper 27is rfeplacedby a series of fingers 27X. lhedotted line indicates the position of a sheet before the grip- In the modification illustratedin Fig. 15 the

grippers

29 and 27 are not placed opposite each other, but the grippers of each set are placed opposite intervals between the grippers of the other'set, and-the parts have motion such that the upper surfaces of the grippers 27 rise somewhat above the plane of the lower Asurfaces of the grippers 29 when both sets are in position to `grip sheets,` thus bending the sheet, as indicated by the dotted line in said Fig. 15,',and holding it.

Itis stated abovethatV it is preferred that the tapes 6 shall bear only upon the margins IOO IIO

of the sheets. In order to provide for carrying out sheets of various widths between the tapes 5 and 6, I arrange to have the pulleys carrying one or more sets of such tapes 5 and 6 adjustable along their shafts. The means forming part of the present invention whereby this adjustment is readily secured are shown in Figs. 10, 11, 12, and 13. Inasmuch as the device is applicable to all the shafts and pulleys, I shall in these figures give independent reference-numerals to the parts. The shaft 72 is provided with a feather or spline 73, and this feather or spline is provided alongits length with transverse notches 74. The pulley 75 is provided with a groove 76 to fit over said spline, whereby the pulley is prevented from turning independently of theshaft. The pulley is provided witha perforation from its rim to its bore, said perforation opening into the said groove 76. Slidable in said perforation is a pin 77,having one end shaped to lit the notches 74 and the other end shaped to receive the end of a coilspring 78, lying behind the said pin in the said perforation. A screw 79, engaging the threaded end of the perforation, acts as an abutment against which the said spring 78 bears. Whenit is desired to adjust the tapepulley 75 along the shaft, it is only necessary to press with some force upon one side ofthe pulley, and thus cause the pin 77 to move radially outward of the pulley against the force of the spring and jump over into the next notch 74 as the pulley moves or is forced along the shaft. In this way the pulleys and their tapes may be adjusted along the shafts to suit any width of sheet and bear upon the margins or other parts thereof, ras may be desired.

No claim is made herein to the adjustable pulley illustrated in Figs. l0 to 13, inclusive, as' that subject-matter forms the basis of an application for Letters Patent, a division of this application, filed March 26, 1901, Serial No. 52,875.

In the modification shown in Fig. 13 the spline is omitted and the shaft 72 is provided with a groove 80, whose bottom is` notched at 74: to receive the pin 77. The pin 77 in this instance acts as a means of preventing the shaft and the pulley from rotating independently of each other-that is, the pin has a function making it the equivalent of the spline. By preference the notches 711C are Haring, as by being conical, and the pin 77 is shaped to lit them, or the notches 74 may be of the same width all the way across the spline or groove, and pin 77 may have a wedge-shaped end to lit them, or the notches may have other cross-sections and the pin be shaped to t them. The essential point is that the shaft and wheel shall have coacting locking members, at least one of which shall present a concave or convex surface to the other. i

What I claim as new, and desire to secure by Letters Patent, is-

1. In a sheet-delivery having a to-and-fromoving sheet support or carrier, a combined sheet stop and gripper comprising a relatively xed sheet-stop against which the sheet is fed, and two independently-movable gripper' members, coacting to grip the sheets between them, substantially as described.

2. In a sheet-delivery having a to-and-fromoving sheet support or carrier, a relatively fixed sheet-stop moving with said carrier or support and against which the sheet is fed, a gripper above said stop and adapted to move up and down, and a gripper in front of said stop adapted to be depressed below the said stop, substantially as described.

3. In a sheet-delivery having a to-and-fromoving sheet support or carrier, a relatively fixed sheet-stop moving with said carrier or support, a gripper above said stop adapted to move up and down, a spring for pressing the gripper downwardly, a second gripper in front of and adapted to be depressed below said sheet-stop, and a spring for pressing said second gripper upward, all in combination, substantially as described.

4. In a sheet-delivery having a to-and-fromoving sheet carrier or support, a relatively xed sheet-stop moving with said carrier or support, a gripper above said sheet-stop, means fori moving and holding said gripper in each of two positions, a second gripper in front of and adapted to be depressed below said sheet-stop, and mechanism for moving said second gripper toward and from the firstnamed gripper, substantially as described.

5. In a to-and-fro-moving sheet-delivery, the combination of a to-and-fro--moving sheet support or carrier, a sheet-stop iiXed thereto and moving therewith, a gripper above said stop, mechanism for operating said gripper to open and close the same, a second gripper in front of and adapted to be depressed below the said sheet-stop, and mechanism for depressing said second gripper while sheets are being run in over it and against said stop and for closing said gripper, substantially as described.

6. In a sheet-delivery, the combination of a to-and-fro-moving sheet carrier or support, a combined sheet and gripper stop moving with said support or carrier, a gripper above said stop and arrested in its downward movement thereby, a second gripper below the first-named gripper and in front of the sheetstop, mechanism for moving said grippers downwardly and holding them apart while the sheets are fedin between them and against said stop and for releasing or closing said second gripper, and mechanism for opening said first-named gripper to release the sheets for delivery, substantially as described.

7. In a sheet-delivery, a to-and-fro-moving sheet carrier or support, a combined sheet and gripper stop moving with said carrier or support, a gripper above said stop adapted to be arrested in its downward movement thereby, mechanism for moving and holding IOO IIO

said gripper against and away from said stop, a second gripper below and in front of said stop, a spring for pressing said gripper upward against the first-named gripper, and a cam on the framework for depressing said second gripper to provide a space between it and the first gripper into which the sheets are fed against said stop said second gripper raising said sheets up against said first-named gripper in position to be delivered over said stop, substantially as described.

8. In a sheet-delivery, the combination of a to-and-fro-moving carriage, a sheet-stop fixed thereto, a sheet support or carrier connected with said carriage, a gripper intermediate the stop and the support or carrier adapted to lie in or slightly above the horizontal plane including the top of the stop and to be depressed below said top, a gripper above said stop adapted to be stopped in its downward movements by said stop and to coact with the lower gripper to grip sheets, springs pressing said grippers toward each other, and mechanism for separating said grippers to allow the sheets to be fed in between them and to allow the sheets to be dropped or moved from said support or carrier, substantially as described.

9. In a sheet-delivery, the combination of a to-and-fro-moving carriage, a sheet and gripper stop xed thereto, a sheet support or carrier connected with said carriage, a gripper between said stop and said support or carrier adapted to lie in or slightly above the top of said stop, a spring pressing said gripper upwardly, an adjustable stopv for limiting the upward motion of said gripper, a cam for moving said gripper against the force of said spring to move the gripper below said stop-top, a gripper above the stop adapted to be stopped in its down movement by said top and to coact with the lower gripper to grip sheets, and mechanism for moving and holding said upper gripper toward and away from said stop-top and lower gripper, substantially as described.

10. In a sheet-delivery havinga to-and-fromoving sheet support or carrier, a combined sheet stop and gripper comprising a relatively xed sheet-stop against which the sheet is fed, and two independently-movable gripper members, one of which is stopped by said sheet-stop and the other of which is stopped by the tirst-named gripper, substantially as described.

1l. In a sheet-delivery having a to-and-fromoving sheet support or carrier, a relatively fixed sheet-stop moving with said carrier or support and against which the sheet is fed, a gripper above said stop and adapted to be stopped thereby in its downward movement, a gripperin front of said stop adapted to be depressed -below thelsaid stop and to be stopped in its upward movements by the first-named gripper, substantially as described.

12. In a sheet-delivery having a to-and-fromoving sheet support or carrier, a relatively fixed sheet-stop moving with said carrier or support, a gripper above said stop adapted to move up and down, and to be arrested thereby in its downward movement, a spring for pressing the gripper downwardly, a second gripper in front of and adapted to rbe depressed below said sheet-stop and to coact with said first-named gripper to grip sheet-s, and a spring for pressing said second gripper upward, all in combination, substantially as described.

13. In a sheet-delivery having ay to-and-fromoving sheet carrier or support, a relatively fixed sheet-stop moving with said carrier or su pport,a gripper above said sheet-stop adapted to be arrested thereby in its downward movement, means for moving and holding said gripper in each of two positions against and away from said sheet-stop, a second gripper in front of and adapted to be depressed beldw said sheet-stop and coacting with said first-named gripper to grip sheets, and mechanism for moving said second gripper toward and from the first-named gripper, substantially as described.

14. In a to-and-fro-moving sheet-delivery, the combination of ato-and-fro-moving sheet support or carrier, a sheet-stop fixed thereto and moving therewith, a gripper above said stop and arrested by the top thereof as it moves downwardly, mechanism for operating said gripper to open and close the same, a second gripper below the first gripper and coacting therewith to grip sheets said second gripper being in front of and adapted to be depressed below the said sheet -stop, and mechanism for depressing said second gripper while sheets are being run in over and against said stop and for closing said gripper against the tiret-named gripper, substantially as described.

15. The combination of adelivery-board', a to-and-fro-moving sheet-delivering mechanism receiving printed sheets at one end of`its path of motion and delivering them as itreturns toward that end of its path on said board, and a second sheet-delivering mechanism adj ustably connected with said firstnamed sheet-delivering mechanism, whereby thelirst-named mechanism begins its delivery at one point and the point of beginning of the delivery by the second mechanism may be varied, substantially as described.

16. The combination of a delivery-board, a to-and-fro-moving carriage, a set of grippers carried thereby, a sheet support or carrier connected with said carriage, means for delivering printed sheets to said grippers and support or carrier, a second set of grippers andasheetsupportorcarrieradjustable along said carriage toward and from said first set and carrier or support, and an adjustable feed-board from which sheets are supplied to said second set of grippers and carrier or-support, substantially as described.

17. The combination of a delivery-board, a

sheet-delivering mechanism movable to and` roo IIO

fro over said board and provided with a set of movable grippers and delivering printed sheets on said board,a second sheet-delivering mechanism also movable to and fro over said board in the same direction as the first mechanism and also provided with a set of movable grippers,and a connection between said sets of grippers for moving them simultan eously,sub stantially as described.

1S. The combination of a delivery-board placed over the inking apparatus of a printing-press,a pai rof side supports for said board, and a pin-and-hole connection between said board and said supports, whereby the board may be disconnected from said supports and slid along the same, substantially as described.

19. The combination of a delivery-board, horizontal bars for supporting the same at opposite edges thereof, and connections for holding said board in place on said bars and disconnectible by lifting or tilting said board, whereby the board may be disconnected from and be slid along said bars, substantially as described.

20. In a sheet-delivery having a to-and-fromoving sheet supporter or carrier, a relatively fixed sheet-stop moving with said carrier or support and against which the sheet is fed, a movable gripper above said stop, and a movable gripper in front of said stop adapted to be depressed below the same while the sheet is being fed between the grippers, substantally as described.

21. In a sheet-delivery having a to-and-fromoving sheet supporter or carrier, a relatively fixed sheet-stop moving with said carrier or support and against which the sheet is fed, a movable gripper above said stop, and a movable gripper in front of said stop adapted to be depressed below the same while the sheet is being fed between the grippers and raised to grip the sheet after the delivery has commenced its outward stroke, substantially as described.

22. In a sheet-delivery having a to-andfromoving sheet support or carrier, a relatively fixed stop against which the sheet is fed, combined with a depressible gripper member in front of said stop and adapted to lie Hush with or slightly above the top of said stop, whereby the sheet is first arrested by the stop and is afterward lifted into position to be run out over said stop.

23. In a printing-press, the combination of two rotatable shafts each provided with a plurality of flaring notches along the same, a pulley for and mounted on each of said shafts to slide along the same, a spring-pressed pin for each slidable pulley adapted to engage with the notches of the corresponding shaft, whereby the slidable pulleys may be moved along their shafts by pressure applied to their sides, and a tape on and moved in two directions by said pulleys, substantially as described.

24. In a printing-press, the combination of two rotatable shafts each provided with a plurality of notches therealong, a pulley for and mounted on each of said shafts to slide therealong, a spring-pin for each of said pulleys adapted to engage with the notches of the corresponding shaft, the coacting parts of the pins and notches being oblique to the axes of said shafts and a tape on and moved in two directions by said pulleys, substantially as described.

25. In a printing-press, the combination of a rotatable shaft having a plurality of Iiaring notches therealong, a pulley slidable along said shaft, a spring-pressed pin on said pulley engaging with said notches, whereby the pulley may be slid along the shaft by pres-- sure thereon and the pin snap from one to another of said notches, and a sheet-moving tape on and moved in two directions by said pulley, substantially as described.

Signed at New York, in the county of New York and State of New York, this 15th day of August, A. D. 1898.

WALTER SCOTT.

Vitnesses:

CEAS. A. BRODEK, RICHARD W..BARKLEY.