US642806A - Sheet-delivery apparatus for printing-presses. - Google Patents

Description

No. 642,806. Patented Feb. 6, I900.

W. SCOTT. SHEET DELIVERY APPARATUS FOR PRINTING PRESSES.

(Application filed Feb. 2, 1897.) (No Model.) 4 Sheets-Sha et 2,

N WITNESSES; N OR: 7

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No. 642,806. Patented Feb. 6, I900.

W. SCOTT.

SHEET DELIVERY APPARATUS FOR PRINTING PRESSES.

(Application fi led Feb. 2, 1897'.)

4 Sheets8heet 3.

(No Model.

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No. 642,806. Patented Feb. 6, I900. W. SCOTT.

SHEET DELIVERY APPARATUS FOR PRINTING PRESSES.

{Ap lication filed Fab. :2, 1897.) (No Model.) 4 Sheets-Sheet 4.

WITNESSES: INVENTOR:

By lzzx AZ/omey I UNITED STATES PATENT OFFICE.

\VALTER SCOTT, OF PLAINFIELD, NEW JERSEY.

SHEET-DELIVERY APPARATUS FOR PRINTING-PRESSES SPECIFICATION forming part of Letters Patent No.'642,80 6, dated February 6, 1900.

Application filed February 2, 1897. Serial No. 621,676 (No model.) i

To alZ whom it may concern.-

Be it known that I, WALTER Soorr, a citizen of the United States, and a resident of Plainfield, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Sheet-Delivery Apparatus for Printing-Presses, of which the following is a specification.

This invention relates to mechanism for delivering sheets of paper or the like upon flat tables or receivers.

The invention is intended for use in conjunction with a printing-press which delivers printed sheets, the object of the invention-being to lay the sheets on the table or receiver with the freshly-printed side uppermost.

To this and other ends the invention consists of combinations of devices hereinafter described, and more particularly pointed out in the claims concluding this specification.

The preferred form of the invention is illustrated in the accompanying drawings, forming part hereof, in which Figure 1 is a side elevation of one end of a printing-press in which the invention is embodied. Fig. 2 is a plan View of the mechanism shown in Fig. 1. Fig. 3 is a view, partly in section, from the delivery end of the press, showing certain details, enlarged, of the mechanism shown in Figs. 1 and 2; and Fig. 4 is a view from the side of the press, showing some of the details shown in Fig. 3. view, partly in section, taken on a plane between the left-hand carrier G and the ratchetwheel 0 in Fig. 3.

In all the figures of the drawings no more of the press and its mechanism is shown than is necessary to indicate the positions and relations thereof to the present invention.

I have illustrated the invention in conjunction with a bed and cylinder printing-press whose cylinder 0 revolves continuously, though it is immaterial to the invention what may be the kind of press used for printing. The impression-cylinder 0 shown is provided with grippers 33, which take the sheets fed from the feed-board 34, and with lifting-fingers 35, which lie under the head of the sheet while the latter is receiving the impression and lift the head of the printed sheet onto the guides 32. These guides 32 are borne by a rod or shaft 31, which is fixed in the frame- Fig. 5 is awork F of the machine and project therefrom to near the impression-cylinder, as shown, in position to receive the sheets from the fingers 35 and guide them to flexible sheet-bearer 25. The sheet-bearer 25 is composed of a sheet of fabric or, by preference, of a set of ribbons, and has. its ends attached to a roller S, which is journaled in the frame F underneath the guides 32, and to the traveler-roller T.

The roller S is intended for winding up the bearer 25 periodically or when the parts of the invention are in certain positions, and for this purpose it may be operated by any suitable means. I prefer to make the roller S self-operating or automatic, which may be conveniently done by constructing it in the form of a hollow cylinder 27, which is provided at one end with the journal 28, which rests in a suitable bearing in the frame F, and at the other end with a hollow bearing or journal which fits over the stud-bearing 29 on the frame F. Inside the cylinder 27 is placed a spiral spring 30, whose ends are fast, respectively, to the stud 29 and to the solid head or journal 28, and is arranged to turn the top of the cylinder 27 toward the cylinder 0. The bearer 25 may have one end fast to the cylinder 27 or to collars 26 on said cylinder.

The traveler-roller T (shown in the drawings) consists of the hollow shaft 18 and a series of collars 24 on said shaft, the collars being equal in number to the ribbons forming the bearer 25 and the ends of the latter being fast to the collars. The shaft 18 may be journaled at both ends in blocks G, which are slidable upon and guided by the frame F or some part attached thereto, or the shaft 18 may be journaled as hereinafter set forth. The shaft 18 is preferably provided with a boss or collar u, whose periphery is provided with a spiral groove or worm 23. This boss is placed near one end of the shaft 18. That one of blocks G which is adjacent the boss u is provided with the guide 22, on which the stop 21 slides to and fro, the stop engaging with IOO f. This pawl fmay be provided with an anti- The mechanism shown for operating the roller T includes the shaft 17, which is placed within the hollow shaft 18 and is journaled at one end in said shaft 18 and at its other end in one of the blocks G. At its latter end the shaft 1'7 forms the bearing for the shaft 18. The shaft 17 is provided with two pinions a and b, of unequal sizes, which are fast thereto. The larger of said pinions, as b, is provided with a pawl j", which is pivoted thereto, as at g, and the catch h, which is also pivoted thereto, as at i. A spring (shown as a leaf-spring Z, fast to the pinion) pushes the catch 72. toward the tooth orpin k on the pawl friction-roller e at one end, the other end of the pawl being intended for coaction with the ratchet-Wheel c, which is fast on the shaft 18, above named. When the pawl fcoacts with said wheel 0, the two shafts 17 18 are connected together, so that the rotation of the first in onedirection also causes the rotation of the second in the same direction. The frame F, near'one, extreme of the excursion or roller T, is provided with a pin or projection (1, against which the catch h impinges and by which the catch is moved from under the tooth 7c, thus allowing pawl f to fall or be thrown by a suitably-placed spring (not shown) into gear with ratchet c. The frame F is provided with the cam surface or incline m opposite the point where the inner end of the receiver 36 is placed. This incline m is for the purpose of throwing the pawlfout of gear with the ratchet-wheel c, the roller e running up on said incline m and allowing catch h to engage under the tooth is. In order to give the catch 77. ample time for engaging under the tooth is, the surface m may be continued as a dwell or horizontal surface it that block G, which is adjacent the boss to, may have a brake-shoe p pivoted thereto, as at q, for coaction with the said boss for the purpose of stopping or slowing the rotation of roller T at times. This brake-shoe is thrown into contact with the boss u by suitable means, as the incline T, which is pivoted to the frame F, as at s, and rests on the adjustable pin 15 on the frame. The brake-shoe 19 may have an antifriction-roller 0 thereon for coaction with the incline r.

There are by preference two equal pinions b on the shaft 17, and these mesh with the two-part rack 20, which is fast to or forms a part of the frame F. In effect the two pinions and the shaft on which they are fast constitute but a single pinion, and the two racks 20 constitute but a single rack. The pinion a meshes with the movable rack 16, which is suitably guided on the frame F, so as to have a to-and-fro motion parallel with the rack 20. The rack 16 is driven to and fro by the ion 14, with which it is in mesh, the; n which carries said pinion 14 and th gear 13, the miter-gear 12, the shaft 1f to which gear 12 is fast, the pinion 10, mat on shaft 11, the reciprocating rack 9, connectingrod 7, which is pivotally attached to rack 9, as at 8, and to the crank-pin 6, which is borne by the crank 5. A revoluble shaft or stud at carries the crank 5 and is preferably operated by means of elliptical or lobel gears 3, one of which is fast thereto and the other of which is fast to the revoluble shaft 38. The pulleys (not shown) by which the press is driven may be carried by said shaft 38. A train of gearing 2 connects shaft 38 with the impression-cylinder C.

The parts being in the positions indicated in the drawings, the cycle of operations is as follows: Shaft 38 being set in motion, the crank-pin 6 moves upwardly, and its motion transmitted through the described train of gearing causes the rack 16 to be moved to the right in Figs. 1, 2, and 4. Since the pinion b is larger than the pinion a, (the drawings show them in the proportion of two to one,) it follows that'shaft 17 is moved to the right in said figures faster than the rack 16 andcarries with it the roller Tand blocks G. With the proportions of pinions a and b, above named, these motions areas two to one. As the traveler-roller T is moved to the right the brake p is released, whereupon the roller T pulls the bearer off theroller S as it (T) moves away from the cylinder 0. The arrangement of the parts is such thatthe sheet from the cylinder C has beenreleased by thegrippers 33, has been lifted onto the guides 32 by the fingers 35,'and run out on the bearer25 until its head has reached the roller T, or nearly thereto, before the parts begin to move from the. positions shown in the drawings. The sheet remains on the bearer-until the roller T reaches the limit of its travel away from the cylinder 0, when the lug cl moves the catch h from under the pin or tooth 76, thus releasing the pawl f, which thereu pon' engages with the ratchet-wheel c. The crank-pin 6 having moved through one hundred and eighty degrees by this'time, the parts T a b 16 17 begin their return toward the cylinder 0, and the roller T winds up the bearer 25 as it (T) rolls away from under the sheet, which thereupon falls head first onto the board 36. The rollerT continues to wind up the bearer 25 until the roller e and the incline m moves thepawl font of mesh with the ratchet-wheel c, whereupon the roller S unwinds the bearer 25 from the roller T onto itself. At the beginning of the winding from rollerT onto roller S the stop 21 is near the frame Gand in the worm 23. The release of roller T permits roller S to rotate it through the medium of the tapes and the rotation of the roller T and the worm 23 during such unwinding and winding moves stop 21 outward on the pin 22. During the'win'ding and unwinding referred to the roller Tis moving toward the cylinder, and as these near completion the brake p is actuated by the cam or incline r and graduallychecks the speed of said winding and unwinding, and just as said winding and unwinding is almost completed the stop 21 strikes the buffer 21 Iio .ing rate of speed, rotating the while. is the preferred adjustment of these gears and stops the rotation of both rollers S T at the moment the rack 9 comes to rest.

It will be observed that the arrangement of the elliptical gears 3 is such that the roller T moves fastest to and fro when nearest the cylinder 0. 7 Thus it runs out at a decreasing rate of speed, not rotating the while, and runs in toward the cylinder 0 at an increas- This only. Of course the adjustment may be varied with corresponding effect on the speed of the roller T to and fro.

In so far as certain featuresof my invention are concerned it is immaterial whether an automatic roller S be employed. Thus the sheet may be shot out onto the bearer from the cylinder C as the roller T runs out fast under the operation of the gears 3, the bearer 25 being wound and unwound on the roller T only and being fastened to a member on the frame where the roller S is held in the drawings. The clutch audits operating means would be omitted in this case and the roller T be fast to the gear I). I do not, therefore,

limit myself to the forms of the invention hereinbefore described, since the same may be varied in many other ways without departing from the spirit thereof. 1

What I claim is 1. In a sheet-delivery, the combination of a spring-roller journaled in the framework, the traveler-roller, a sheet-bearer fast at its ends to said rollers, mechanism for moving said traveler-roller to and fro, a clutch for connecting said traveler-roller and its said operating mechanism, and mechanism for periodically throwing said clutch into and out of operation, substantially as described.

2. In a sheet-delivery, the combination of a roller journaled in the framework, a traveler-roller, a sheet-bearer fast at its ends to said rollers, mechanism for moving said traveler-roller to and fro, a clutch for connecting said traveler-roller and its said operating mechanism, mechanism for periodically throwing said clutch into and out of operation, and means for operatingsai d first-named roller to cause it to periodically wind up the said bearer, substantially as described. 3. In a sheet-delivery, the combination of a spring-roller journaled in the framework, a traveler-roller, asheet-bearer fast at its ends to said rollers, mechanism for moving said traveler-roller to and fro, and mechanism for periodically connecting said travelerfor operating said first-named roller to cause it to periodically wind up said sheet-bearer, substantially as described.

5. The combination of an automatic roller j ournaled in the framework, a traveler-roller, a sheet-bearer connecting said rollers, the toand-fro-movable rack 16, mechanism for operating said rack, the pinion a, meshing with said rack, the fixed rack 20, the pinion 12 (larger than pinion a meshing with rack '20, the shaft 17 to which said pinions ab are fast, a clutch for connecting said pinion b and said traveler-roller, and mechanism for periodically throwing said clutch into and out of operation, substantially as described.

6. The combination of an automatic roller journaled in the framework, the traveler-' roller, the sheet-bearer connecting said rollers, the ratchet-wheel c on said traveler-roller, the shaft 17, mechanism for rotating said shaft 17 alternately in opposite directions, the pawl f operated or carried by said mechanism, the spring-catch, the tooth is on said pawl with which the catch coacts, the lug d on the frame for operating said catch, and the incline m on the framework, substantially as described.

7. The combination of an automatic roller journaled in the framework, a traveler-roller, the sheet-bearer connecting said rollers, the ratchet-wheel c on said traveler-roller, the shaft 17, the fixed rack 20, the pinion b meshing with rack 20, the pawl f carried by pinion b, the tooth It on said pawl, the spring-catch, the lug d on the framework for-operating the catch, the incline m on the framework, the pinion a (smaller than pinion b) on the shaft 17, the to and-fro-movable rack 16 meshing with pinion a, and mechanism for operating rack 16, substantially as described.

8. The combination of an automatic roller journaled in the framework, atraveler-roller, the sheet-bearer connected at its ends to said rollers, the slide-stop 21, the worm 23 closed at one end for operating said slide-stop, the shaft 17, the ratchet-wheel 0 fast on said traveler-roller, the pawl f, the spring-catch, the tooth is on said pawl, the lug don the frame, the incline m, and mechanism for rotating said shaft 17 in opposite directions and operating said pawl, substantially as described.

9. The combination of an automatic roller journaled in the framework, a traveler-roller, the sheet-bearer connected at its ends to said rollers, the stop 21, the worm 23 closed at one end for operating said stop, mechanism for moving said traveler-roller to and fro, a clutch for connecting said traveler-roller and its said operating mechanism, and mechanism for pcriodically throwing said clutch into and out of operation, substantially as described.

10. The combination of an automatic roller in the framework, a traveler-roller, a discontinuous sheet-bearer connected to said rollers, the stop 21, the worm 23 closed at one end for operating said stop, mechanism for moving said traveler-roller to and fro, and mechanism for periodically connecting and discon- IIO ne'cting said traveler-roller-and its said operating mechanism, substantially as described.

11. The combination ofanautomaticspringroller in the framework, a traveler-roller, a discontinuous sheet-bearer connecting said rollers, and mechanism for moving said traveler-roller to and fro and winding said bearer on said rollers alternately, substantially as described.

12. The combination of an automaticroller in the frame, a traveler-roller, a discontinuous sheet-bearer connected to said rollers, and

traveler-roller-operatin g mechanism'provided with an automatically-operated clutch for periodically connecting said traveler-roller with its said operating mechanism to be rotated thereby and disconnecting it therefrom, substantially as described.

13. The combination of a roller in the framework, the traveler-roller, a sheet-bearer connected at its ends to saidrollers, mechanism for moving said traveler-roller to-and fro and winding said bearer alternately'on said rollers, a brake for said traveler-roller, and an incline for operating said brake, substantially as described.

14.. The combination of a roller in 1 the frame, a traveler-roller, the sheet-bearer conmeeting said rollers, mechanism for moving said traveler-roller to and fro and winding said bearer on said rollers alternately, a brake for said traveler-roller, an incline for operating the brake, the Worm closedat oneend on said traveler, and the movable stop coacting with said worm, substantially as described.

15. The combination of a roller in the frame, a traveler-roller, a sheet-bearer connecting said rollers, mechanism for moving said traveler-roller to and fro-andwinding said bearer on said rollers alternately, a brake for the traveler-roller, a pivoted incline for operating said brake, and means for adjusting the position of the incline, substantially as described.

16. The combination of-an automatic roller journaled in the frame,a traveler-roller, a sheet-bearer between said rollers, mechanism for moving said traveler-roller to and fro, an automatically operated'clutch for periodically connecting said traveler-roller with said mechanism to berotated thereby and disconnecting it therefrom, a brake for said traveler-roller, and means for operating said brake, substantially as described.

17. The combination of an automatic roller in the frame, a traveler-roller, asheet-bearer connecting said rollers, mechanism for moving said traveler-roller to and fro, an automatically operated clutch for periodically connecting said traveler ro1ler with said mechanism to be rotated thereby and disconnecting it therefrom, a brake for said trav-' eler-roller, and adjustable mechanism for operating said brake, substantially as described.

18. llhe combination of an automatic roller erated by said worm, substantially as described.

19. The combination of a roller in the frame, a traveler-roller, a discontinuous sheet-bearer connected at its ends to said rollers, the worm closed at one end and carried bysaid traveler-roller, the slide-stop coacting with said worm, and mechanism for moving said traveler-roller to and fro and winding said bearer on said rollers alternately, substantially as described.

'20. The combination of an automatic roller in theframe,a traveler-roller,-a discontinuous sheet-bearer connected at its ends to said rollers, the worm connected-with said travelerroller andv closed at one end, the movable stop coacting with said worm, and mechanism provided withanautomatically-operated clutch periodically connecting said travelerroller with said mechanism to be rotated thereby and disconnecting it therefrom for moving said roller to and fro, substantially as described 21. The combination of a roller journaled in the framework, a traveler-roller,adiscontinuoussheet-bearer fast to said rollers, mechanism for winding the bearer on said rollers alternately,a worm on said traveler-roller, a stop engagingand operatedby the worm, and a buffer for said stop, substantially as described.

22. The combination of an automatic roller in the'framework, a traveler-roller, a discontinuous sheet-bearer fastto said-rollers, the worm connected with said traveler-roller, a bufier insaidworm at one end thereof, amovable stop coactingwithsaidworm and buffer, and mechanism provided with an automat ically-operatedclutch periodically connecting said traveler-roller withsaid mechanism to be rotated thereby and disconnecting it therefrom for moving said roller to and fro, substantially as described.

23. The combination of a roller journaled in the framework, the hollow traveler-roller, a discontinuous sheet-bearerfast to said rollers, the shaft 17 within said hollow roller, the large and small pinions fast to said shaft 17, the fixed rack 20 meshing with the larger of said pinions, and mechanism for operating said roller in the framework and for'rotating said smaller pinion alternately in opposite directions, with mechanism including an automatically operated clutch for connecting and disconnecting the shaft 17 with the hollow roller, substantially as described.

24. The combination of the hollow travelerroller, the shaft 17 within said hollow roller,

the fixed rack 20, the large and small pinions b a on the shaft 17 the larger pinion meshing with the rack 20, the movable rack meshing with the smaller pinion, and mechanism for moving the movable rack to and fro, with a clutch for connecting the shaft 17 and the hollow roller, mechanism for periodically opening and closing said clutch, a roller journaled in the framework, means for operating the last-named roller, and a discontinuous sheet-bearer fast to the two said rollers, substantially as described.

25. The combination of the automatic roller S journaled in the framework, the hollow traveling roller T, the bearer fast to said rollers S T, the worm 23 on the roller T, the guided stop 21 operated by the worm, the buffer 21 in said worm, the shaft 17 within the roller T, the ratchet-wheel c on the shaft 17, the pawl f connected with the shaft 17, the spring-catch h and pin 70, the lug d on the framework, the incline m on the frame, and mechanism for moving the shaft 17 to and fro and rotating it alternately in oppo-' site directions, substantially as described.

26. The combination of an automatic roller in the framework, the traveler-roller, the discontinuous sheet-bearer fast to the said rollers, mechanism provided with elliptical gears for moving said traveler-roller to and fro and rotating the same said mechanism containing a clutch, and mechanism for periodically throwing said clutch into and out of operation, substantially as described.

-27. In an extensible collapsible sheet-delivery device, a to-and-fro-moving roller, the sheet-bearer fast to said roller, the fixed rack, the movable rack 16, the pinion connected with the said roller and meshing with the fixed rack, a second pinion smaller than and connected with the first-named pinion and meshing with the rack 16, and mechanism for moving said rack 16 to and fro, with a member on the framework to which the sheetbearer is also fast, substantially as described. Signed at New York city, in the county of New York and State of New York, this th day of January, A. D. 1897. V

I VALTER SCOTT.

Witnesses:

E. D. OBRIEN,

RICHARD W. BARKLEY.

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