US575643A - Sheet-delivery mechanism for printing-presses - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

I R. W. JAMIE-SON. SHEET DELIVERY MECHANISM FOR PRINTING PRESSBS.

NOP575I6431 Patented Jan. 19, 1897..

iEI\/\/\A ii v I; 8 :1: ll :1 5:: .v

*cQQ

"w 1 u n t" :J'If iiii" L w F .w u a:

I 204%. ff W 42. M. J-X@% ATTORNEY.

(No Model.) 3 Sheets-Sheet 2 v R. W; JAMIESON. SHEET DELIVERY MEGHANISM FOR PRINTING PRESSES.

No. 575,643. Patented Jan. 19, 1897.

WITNESSES I/VVE/VTOR v (No Model.)

B. WJJAMIESON.

3 Sheets-Sheet 3.

SHEET DELIVERY MECHANISM FOR PRINTING PRBSSES.

a E Patented Jan. 19, 1897. R I

afjdazbg ATTOH UNITED STATES PATENT OFFICE.

ROBERT \V. JAMIESON, OF ROCHESTER, NEYV YORK.

SHEET-DELIVERY MECHANISM FOR PRINTING-PRESSES.

SPECIFICATION forming part of Letters Patent No. 575,643, dated January .19, 1897.

Application filed September 30, 1896. Serial No. 607,510. (No model.)

To all whont it may concern.-

Be it known that 1, ROBERT W. J AMIESON, a citizen of the United States, and a resident of the city of Rochester, county of Monroe, and State of New York, have invented certain new and useful Improvements in Sheet- Delivery Mechanisms for Printing-Presses, of which the following is a specification, ref erence being had to the accompanying drawings, in which Figure 1 is a top plan view of a device embodying my invention. Fig. 2 is a side elevation of such a device. Fig. 3 is another side elevation thereof. Fig. 4 is an enlarged side elevation of the end of the traveling carriage in Fig. 2. Fig. 5 is an endelevation of the traveling carriage. Figs. 6, 7, and S are enlarged cross-sections on the lines 6 6, 7 7, and 8 8 of Fig. 2. Fig. 9 is a cross-section 011 the line 9 9 of Fig. 3. Figs. 10, ll, and 12 are diagrams showing the operation of the machine.

The object of my invention is to produce an accurate and easily-managed sheet-delivery apparatus of the dropper type; and my invention'consists in the combinations hereinafter described and claimed.

In the drawings, A is the frame of the machine.

Ct is the feed-table.

A is the impression-cylinder.

a are the usual stripper-fingers for stripping the sheet from the impression-cylinder.

B, C, and D are three rollers having axes parallel to the axis of the impression-cylinder. Two of these rollers, B and O, are set in fixed bearings adjacent to the periphery of the impression-cylinder A. The third roller, D, is set in hearings on a traveling carriage to move to and from the other rollers. A delivery-table Z is provided, as usual.

On each side of the frame A is a rod E E, which runs in guides e e e 8, attached to the frame of the machine, so that the rods E E may slide in and out with reference to the impression-cylinder and the rollers B and C and move parallel to each other. The ends of these two rods E E are fastened together by a crossbar F, (shown most clearly in Fig. 5,) whereby they move together. On the ends of these rods are bearings d (l for the axle d of the roller D. On one end of said axle is a ratchet-wheel d (See Figs. 2, 4, and A pawl (2 pivoted to the bar E, as at cl", engages the teeth of the ratchet-wheel (Z to hold the ratchet-wheel and the roller D against rotation when the pawl is in engagement. On one side of the pawl is a lug d having two flat-sided faces which are so adjusted that a spring (1, fastened to the bar E, holds the pawl in either of two positions, one of engagement with the ratchet-wheel (Z and the other of complete disengagement therefrom. To the pawl (Z is attached a rod (1 which slides in guides (1 upon the bar E, so that the rod (Z moves with the bar E. The end of the rod (1 has a lug d on it, which, just before the roller D reaches its position most remote from the iinpression-cylinder A", strikes a stationary stop (1 and holds the rod stationary while the carriage moves forward, thus disengaging the pawl (1 from the ratchet-wheel (1 The pawl is moved into engagement with the ratchet-wheel by striking against a stationary stop or pin (7. on the frame of the machine. I

A series of discontinuous tapes G are fastened at one end to the roller B and at the other end to the roller O, passing over the roller D. These tapes constitute a traveler for supporting and carrying the sheets of paper from the impression-cylinder to the delivcry-table. The roller B is set close to the periphery of the impression-cylinder A, and the stripper-fingers a are so arranged as to guide the sheets X from the impression-cylinder to rest upon the tapes G. The tapes wind and unwind on the rollers B and O, and the movement of the roller D to and from the other two rollers serves to extend the tapes so as to carry the sheet which is thereon to the delivery-table Z. The roller B is provided with a ratchet-wheel b, fixed on the axis of the roller, and upon a fixed pivot on the frame A of the machine is 'the dog 19, which engages with the teeth of the ratchet-wheel b. This dog is actuated by two pins 19 ('1 upon the sliding bar E, which at proper times move the pawl so as to engage and disengage the same and the ratchet-wheel b. A spring I), attached to the frame A adjacent to the pawl, presses upon two fiat surfaces of said pawl, so as to hold it in the position of engagement or that of disengagement with the ratchet-wheel ICO I). On the same side of the machine with the side bar E are two rack-rods II ll, formed to slide in the guides c c parallel to said rod E. 011 the ends of these rack-rods are collars h h, to which are fastened coiled springs 7L2 7L3, which pass around the rods and press against the guide-bracket e nearest to the end of the rods, so that as the rods are ex tended by movement to the right in Fig. 3 the springs 7L2 7L will be compressed. Upon the axles of the rollers B and O are spurwheels B C, (shown in Fig. 3,) which spurwheels mesh with the racks on the rack-bars 11 II.

Let us now suppose that the parts are in the position shown in Fig. 12, the rods E E being retracted to their limit, the rack-bars II II being also retracted to their limits, the dog I) having been moved by the pin Z) out of engagement with the ratchet-wheel b and thus leaving the roller B free to revolve, the tapes G being equally wound upon the rollers B and O, and the roller D being in its greatest proximity to the other two rollers. A sheet X is delivered from the impression-cylinder over the upper surface of the tapes G on the roller 13. The roller D has been locked from rotation by the abutment of the pawl d with the stop (Z and the engagement of the pawl with the ratchet-wheel d and now moves away from the impression-cylinder A, the rod E being driven by mechanism hereinafter described. As the roller D moves away from the other rollers the tapes G are unwound equally from each roller B and O, and said tapes being therefore without rotation with reference to the locked roller D will move with said roller and carry the sheet X upon them, in the positions shown in Figs. 2 and 10, until the travcling carriage and traveler have reached the extreme position shown in the figures just mentioned. This outward movement of the traveling carriage revolves the rollers B and (J, as stated, and through the spur-wheels 13 and C and rack-bars H and H compresses the springs 71 70 lVhen the extreme outward position is reached, the stop (1 strikes the lug d" on the rod (1 thereby disengaging the pawl (Z from the ratchet-wheel d and releasing the roller .D. As soon as the extreme outward position is reached the pin b strikes the pawl 11 and moves it into engagement with the ratchetavheel b and locks the rollerB against rotation. At this time the whole traveling carriage begins its return movement and the tapes begin to wind upon the roller 0, rolling over the roller D. As the roller D begins to return toward the impression-y]inder A the spring 7L3 begins to move the rack-bar 71- backward to rotate the spur-wheel C, and thereby the roller C, so as to wind the tape G upon the roller C.

\Vhile the roller D is returning and during the period while the roller C is revolving in the direction of the arrow shown in Fig. 11 the roller B is restrained from rotation and the roller D revolves in the direction of the arrow shown in the same figure, and thereby the sheet X is fed ott the tapes and upon the delivery-table Z. The springs 7L2 7L3 of the rackbars II II are so adjusted by means of their collars h it that they are equal in tension when equal portions of the tapes are wound on the rollers B and C. I-Ience as the roller D returns toward the impression-cylinder the retraction of the rack-bar H winds the tapes on the roller 0 until the parts reach substantially the positions shown in dotted lines in Fig. 12, when the sheet will have been fully delivered to the delivery-table and about onehalf of the total length of the tapes will have been wound upon the rollerC. At this point the pin 11 strikes the tail. of the pawl b, disengaging it from the ratehet-wheel b, and releases the rollcr B, whereupon the spring W, being new in greater tension than the spring h, comes into action, and through the rackbar Hand spur-wheel B turns the roller 13 in the direction indicated by the arrow in Fi 12 and winds the tapes upon it, while this operation winds a portion of the tapes off the roller C, rotating said last-mentioned roller in a direction opposite to the direction of retation of the roller B until the springs 7L2 7L3 have equalized their tension and the tapes are equally wound on the rollers 13 and O. The roller D continues its return toward the imprcssion-eylinder, while the ends of the traveler or tapes continue to be independently retracted by the springs 7L2 711' and wind upon the rollers 13 and C, thus equalizing the retraction of the ends and securing the winding of an equal amount of the tapes upon the rollers l3 and O. V hen the parts reach the position shown in full lines in Fig. 12, they are ready for another operation.

It is obvious that various means of rceipro eating the traveling carriage, consisting of the said bars E E and cross-bars F, with the roller D, may be employed. One means of operating them is shown in Figs. 2 and 6. The printing-bed Y reciprocates, as usual and by the usual means, under the impression-cylinder A. A rack Y is fixed to said bed Y and meshes with a gear-whee1 y, journaled in the frame A of the machine. On the same shaft with the gear-wheel y is another equal wheel 3 one being inside the frame and the other outside the frame in the form of device shown. The wheel y meshes with an equal wheel 4 which meshes with a rack E on the side bar E. As the bed Y reciprocates, the traveling carriage reciprocates in the same direction and at the same time with it. This mechanism may of course be duplicated 011 the other side of the machine, if desired.

\Vhat I claim is- 1. In a sheet-delivery apparatus, the combination ofan impression-cylinder, a deliverytable, and a delivery mechanism comprising a discontinuous traveler, two rollers having fixed bearings and to which the ends of said traveler are attached, mechanism for winding said traveler on said two rollers, and a mov- ICO able roller engaging said traveler and adapted to extend the same from said impression-cylinder and to unwind said traveler from said two rollers.

2. In a sheet-delivery apparatus, the combination of an impression-cylinder, a deliverytable, and a delivery mechanism comprising a discontinuous traveler, two rollers having fixed bearings to which the ends of said traveler are attached, mechanism for winding said traveler on said two rollers, and means for unwinding said traveler from said two rollers and at the same time extending the same from the impression-cylinder to the delivery-table.

3. In a sheet-delivery apparatus, the com bination of an im pression-cylinder, adeliver table, and a delivery mechanism comprising a discontinuous traveler, two rollers having fixed bearings and to which the ends of said traveler are attached, mechanism for winding said traveler on said two rollers, mechanism for locking one of said rollers against rotation, means for unwinding said traveler from said two rollers and extending the same to the delivery-table from the impression cylinder without movement with reference to the means for so extending the same.

4:. In a sheet-delivery apparatus, the combination of an impression-cylinder, a d eliverytable and a delivery mechanism, comprising a discontinuous traveler, two rollers having fixed bearings to which the ends of said traveler are attached, a traveling carriage having a roller thereon engaging said traveler and adapted to extend the same to and from said two rollers, means for intermittently holding one of said two rollers with fixed bearings against rotation, and means for holding the roller upon said traveling carriage against rotation.

5. In a sheet-delivery apparatus, the combin ation of an impression-cylinder, a deliverytable and a delivery mechanism comprising a discontinuous traveler, two rollers having fixed bearings to which the ends of said traveler are attached, a traveling carriage having a roller thereon engaging said traveler and adapted to extend the same to and from the impression-cylinder, means for intermittently holding one of said two rollers with fixed bearings, means for intermittently holding the roller onsaid carriage against rotation, and means for revolving said two rollers with fixed bearings to wind said traveler thereon.

6. In a sheet-delivery apparatus, the combination of an impression-cylinder, a deliverytable, a discontinuous traveler, two rollers adjacent to said impression-cylinder having fixed bearings and to which the ends of said traveler are attached, mechanism for winding said traveler on said two rollers, and a traveling carriage having a roller thereon engaging said traveler and adapted to extend the same to and from the impression-cylinder by winding the said traveler off said rollers with fixed bearings.

7 In a sheet-delivery apparatus, the combin ation of an impression-cylinder, a deliverytable, a discontinuous traveler, two rollers adjacent to the impression-cylinder having fixed bearings and to which the ends of said traveler are attached, spur-wheels on the axes of said rollers, rack-bars engaging said spur-wheels, springs for actuating said rackbars to rotate said spur-wheels to wind said traveler upon said rollers, a traveling carriage having a roller thereon engaging said traveler adapted to extend the same from the impression-cylinder and to unwind said traveler from said two rollers, means for holding the roller upon said traveling carriage against rotation while the same is moving from the impression-cylinder, and means for holding the upper one of said two rollers having fixed bearings against rotation during a part of the return of said movable roller and While the sheet is being delivered from said traveler upon the delivery-table.

8. In a sheet-delivery apparatus, the combination of an impression-cylinder, a deliverytable, a discontinuous traveler, a movable roller engaging said traveler intermediate its ends and adapted to extend the same from the impression-cylinder to the delivery-table, and means adjacent to the impression-cylinder for alternately retracting the two ends of said traveler and for permitting the traveler to be extended by said movable roller.

9. In a sheet-delivery apparatus, the combination of an impression-cylinder,a deliverytable, a discontinuous traveler, a movable roller engaging said traveler intermediate its ends and adapted to extend the same from the impression-cylinder to the delivery-table, means adjacent to the impression-cylinder for alternately retracting the two ends of said traveler and for permitting the traveler to be extended by said movable roller, and means for holding said movable roller against rotation while the same is moving toward the delivery-table.

10. In a sheet-delivery apparatus, the combination of an impression-cylinder,a deliverytable, a discontinuous traveler, a movable roller engaging said traveler intermediate its ends and adapted to extend the same from the impression-cylinder to the delivery-table, means adjacent to the impression-cylinder for alternately retracting the two ends of said traveler and for permitting the traveler to be extended by said movable roller, means for holding said movable roller against rotation While the same is moving toward the deliverytable, and mechanism for holding said traveler stationary at the points where the sheet is resting thereon while said movable roller is moving toward the impression-cylinder.

11. In a sheet-delivery apparatus, the combination of an impression-cylinder,a deliverytable and a delivery mechanism comprising a discontinuous traveler, two rollers having fixed bearings and to which the ends of said traveler are attached, one of said rollers being set in a higher plane than the other, a movable roller over which said traveler runs from one of said two rollers to the other, means for moving said movable roller to and from the two rollers having fixed bearings, mechanism for holding the movable roller against rotation while the roller is moving from the impression-cylinder, means for releasing said roller to permit it to rotate during its return toward the impression-eylinder, mechanism for holding the upper of said two rollers against rotation while the movable roller is making the first portion of its return movement toward the imprcssion-cylinder an d then for releasing the same, and means for rotating said two rollers having fixed bearings to wind said traveler thereon.

12. 111 a sheet-delivery apparatus, the combination of an im pression-cylinder,a deliverytable, and a delivery mechanism comprising a discontinuous traveler, two rollers B and C having fixed bearings and to which the ends of said traveler are attached, a movable roller D over which said traveler runs, means for moving said movable roller to and from the rollers B C, a ratchet-wheel d and dog (1 for holding the roller D against rotation, means for throwing said dog into engagement with the ratchet-wheel when the roller D begins to move from the impression-cylinder, means for disengaging said dog from said ratchetwheel when said roller D reaches its extreme position of extension, at ratchet-wheel b and a dog I) for holding and releasing the roller 13, and means for holding said dog Z) in engagement with said ratchet-wheel b while the roller D is making the first portion of its return movement toward the impression-cylinder, means for disengaging said dog I) from said ratchet-wheel h during the latter part of the movement of said roller D toward the impression-cylinder, a spur-wheel upon the axes of each of said rollers having fixed bearings and a spring-actuated rack for engaging each spur-wheel.

13. In a sheet-delivery apparatus, the combination of an impression-cylinder,a deliverytable, and a delivery mechanism comprising a discontinuous traveler, two rollers B and C having fixed bearings and to which the ends of said traveler are attached, a movable roller D over which said traveler runs, means for moving said movable roller to and from the rollers B O, a ratchet-wheel (1 and dog d for holding the roller D against rotation, means for holding said dog in engagement with the ratchet-wheel while the roller 1) is moving from the iinpression-cylinder, means for disengaging said dog from said ratchetwheel when said roller D reaches its extreme position of extension, a ratchet-wheel b and a dog I) for holding and releasing the roller 13, and means for holding said dog I) in e11- gagement with said ratchet-wheel Z) while the roller D is making the first portion of its return movement toward the impression-cylinder, means for disengaging said dog I) from said ratchet-wheel Z) during the latter part of the movement of said roller D toward the impression-cylinder, and means for rotating said rollers 13 and O to wind said traveler thereon.

14. In a sheet-delivery apparatus, the 00111- bination of an impression-cylinder,a deliverytable, and a delivery mechanism comprising a discontinuous traveler, two rollers 1:3 and 0 having fixed bearings and to which the ends of said traveler are attached, a movable roller D over which said traveler runs, means for moving said movable roller to and from the rollers B C, a ratchet-wheel (l and dog d for holding the roller D against rotation, means for holding said dog in engagement with the ratchet-wheel while the roller D is moving from the impression-cylinder, means for disengaging said dog from said ratchet-wheel when said roller D reaches its extreme position of extension, a ratchet-wheelb and a dog I) for holding and releasing the roller 13, and means for holding said dog I) in engagement with said ratchet-wheel Z) while the roller D is making the first portion of its return movement toward the impression-cylinder, means for disengaging said dog I) from said ratchetwheel 1) during the latter part of the move ment of said roller D toward the impressioncylinder, spur-wheels B and 0 upon the axis of said rollers 13 and C, rack-bars II and II engaging said spur-wheels and springs ]L2 h compressed by the unwinding of the traveler from said rollers B and G and winding said traveler upon said rollers by expansion of said springs.

15. In a sheet-delivery apparatus, the com bination of an impression-cylinder,a deli verytable and a delivery mechanism comprising a discontinuous traveler, two rollers having fixed bearings and to which the ends of the traveler are attached, a movable roller engaging said traveler between its ends and adapted to reciprocate to and from the impression-cylinder and to unwind said traveler from said two rollers, means for winding said traveler upon said two rollers, a reciprocating typebed, and means connecting said type-bcd and said movable roller for reciprocating the same.

16. In a sheet-delivery apparatus, the con1- bination of an impression-cylinder,a deliverytable and a delivery mechanism comprising a discontinuous traveler, two rollers having fixed bearings and to which the ends of the traveler are attached, a movable roller engaging said traveler between its ends and adapted to reciprocate to and from the impression-cylinder and to unwind said traveler from said two rollers, means for winding said traveler upon said two rollers, arack attached to said movable roller for reciprocating the same, a reciprocating type-bed, a rack on said typebed and gearing between said two racks.

17. In a sheet-delivery apparatus, the combination of an impression-cylinder,a deliveryelerand reciprocating means acting upon said traveler between its ends for extending the traveler from the impression-cylinder to the delivery-table.

18. In a sheet-delivery apparatus, the combination of an impression-cylindena deliverytable, a discontinuous traveler,means for independently retracting each end of the traveler, and positively-actuated reciprocating means acting upon said traveler between its ends for extending the traveler from the impression-cylinder to the delivery-table.

19. In a sheet-delivery apparatus, the combination of an impression-cylinder,a deliverytable, a discontinuous traveler, means forindependently retracting each end of the traveler,and reciprocating means acting upon said traveler between its ends for extending the traveler from the impression-cylinder to the delivery-table, a reciprocating type-bed, and means connecting said type-bed and said reciprocating means for operating the same.

20. In a sheet-delivery apparatus, the combination of an impression-cylinder,a deliverytable, a discontinuous traveler, a tension device for independently retracting each end of the traveler, and reciprocating means acting upon said traveler between its ends for extending the traveler from the impression-cylinder to the delivery-table.

21. In a sheet-delivery apparatus, the combination of an impressi0n-cylinder,a deliverytable, a discontinuous traveler, a stationary tension device for retracting each end of the traveler,and reciprocating means acting upon said traveler between its ends for extending the traveler from the impression-cylinder to the delivery-tab1e.

22. In a sheet-delivery apparatus, the combination of an impression-cylinder,a deliverytable, a discontinuous traveler, means for independently retracting each end of the traveler, reciprocating means acting upon said traveler between its ends for extending the traveler from the impression-cylinder to the delivery-table and devices cooperating with one of said retracting means whereby the same is alternately restrained from and brought into action.

23. In a sheet-delivery apparatus, the combination of an impression-cylinder,a deliverytable, a discontinuous traveler, means for independently retracting each end of the traveler, reciprocating means acting upon said traveler between its ends for extending the traveler from the impression-cylinder to the delivery-table, and devices for restraining one of said retracting means from operation during movement of said reciprocating means to the delivery-table and until the sheet is delivered from said traveler and then bringing said retracting means into operation whereby the retraction of the two ends of the traveler is equalized.

. ROBERT W. J AMIESON. Witnesses:

S. P. MOORE, E. H. MARSELLUS.

Images