US591223A - north - Google Patents

Description

`(No Model.) 6 Sheets-Sheet 1.

T. M. NORTH. SHEET DELIVERY APPARATUS POR PRINTING MACHINES.

No. 591,223. Patented Oct. 5,1897x Il IIII ll Vl Il l x me Nonms Perses co. wnovoimo wAsrmcmw. c. u

(No Model.) 6 Sheets-Sheet 2.

T. M. NORTH. sIIEET DELIVERY APPARATUS PoR PRINTING MACHINES.

No. 591,223. IPatented Oct. 5,1897.

6 Sheets-Sheet 3.

(No Model.)

T. M. NORTH'. sIIPPPDPLII/'PNY APPARATUS P0P PRINTING MACHINES. No. 591,223'.

Patented Oct. 5, '1897.

v6 Sheets-Sheet 4.

(No Model.)

T. M. NORTH. SHEET DELIVERY APPARATUS POE PRINTING MACHINES.

. No. 591.223. Patented Oct. 5,1897.

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(No Model.) V A 6 Sheets-Sheet 6'. T. M. NORTH. SHE-ET DELIVERY APPARATUS IOR PRINTING MACHINES.

No. 591,223. Patented oct. 5,1897;

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THOMAS M. NORTH, OF BROOKLYN, NEW YORK, ASSIGNOR TO ROBERT HOE, THEODORE H. MEAD, AND CHARLES YV. OARPEN TER, OF NEW YORK, N.l Y.

SHEET-DELIVERY APPARATUS FIOR PRINTING-MACHINES. v

SPECIFICATION forming part of Letters Patent No. 591,223, dated October 5, 1897.

Application lled February 6, 1895i. Serial No. 537,532. (No model.)

To all whom t 11mg concern:

Be it known that I, THOMAS M. NORTH, a subject of the Queen of Great Britain, residing at the cityof Brooklyn, county of Kings, and State-of New York, have invented certain new and useful Improvements in Front Sheet-Deliveries for Cylinder Printing-Machines, fully described and represented in the following speciiication and the accompanying drawings, forming a part of the same.

This invention relates to that class of printing-machines in which printed sheets received from an impression-cylinder require to be delivered flat upon a piling-table.

The object of the invention is to provide a delivery apparatus for such a printing-machine by which the sheets are not only delivered printed side up, but without the freshly- 'printed surface having had contact with delivery-tapes or other mechanism whereby smutting might occur.

The invention consists in a sheet-deliveryprinting-machine 'as is necessary to illustrateVV this invention. Fig. 2 is a plan view of the same. Fig. 3 is an elevation on section-line 3 4, showing the sheet-carriage at the end of the outward stroke. Fig. 4 is a similar view on section-line 3 4, showing the carriage returning and depositing the sheet on the pile. Fig. 5 is an enlarged side View of part of the carriage, showing it at `the end `of its return stroke toward the cylinder. Fig. 6 is a similar View showing the carriage with the paper after having traveled a short distance in its delivery stroke. Fig. 7 is a plan view of the parts shown in Fig. 5. y

So much of a cylinder or flat-bed printingmachine as is necessary to illustrate these improvements is shown in the drawings, and beyond pointing out that' the impression-cylinder O and form-carrying reciprocating flat bed D are similar to like devices in this wellknown class of lprinting-machines no further description thereof is required for thoseV two opposite heads A B, which slide on 1ongitudinal guide-rods 21 31, supported by the framework, said heads A B `being connected together by rods 40 44 and shafts 41 42 43.'

The rod 44Asupports projecting fixedly from it a number of horizontal fingers 46, which descriptively maybe said to constitute a horizontal carrying-frame, said fingers, extending both sides of the said rod 44, having heels long enough to reach into recesses in the delivery-roller 50 on the shaft 43 and whose points project toward the impression-cylinder. Above these fingers there are companion guides 51, that are hung upon the rod 40, which guides extend rearwardly over the heels of said fingers and forward toward the impression-cylinder for a considerable distance over the fingers. The delivery-roller 50 is mounted on the shaft 43, which is provided at one end with a pinion 60, that is geared with an intermediate 61, mounted on a stud, and which carries pivoted on one face a pawl 9, that engages with a ratchet-wheel 62, fast to a Vwheel 63, the sleeve carrying which wheels 62 63 turns freely on the stud of the intermediate 61, the wheel 63 engaging with a rack 64, supported by the framework, by which arrangement said wheel 63 is rotated in a direction corresponding with the travel of the delivery-carriage, and moving in one direction drives the roller 50 through the ratchet-wheel 62, ratchet 9, intermediate G1, and pinion 60.

For cooperation with the delivery-roller 50 the rock-shaft 4l is provided with arms 80, at the forward ends of which are carriedfriction-rolls 90, that press the margins of the sheets upon the delivery-roller 50, and thus, cause the Vsheets to be moved thereby, which Ioo sitions through a rock-arm 81, that collides for that purpose with a stop 19, xed to the framework, their raised position being secured by a locking-lever 82, pivoted to the delivery-carriage and gravitating into position to engage said rock-arm, as in Fig. 5, said locking-lever 82 being tripped to free the rock-arm 81, and thus allow the margin-rolls to descend and rest upon the delivery-roller 50 by means of a tappet 6, fixed to the frame, engagement with which tilts said lever, as in Fig. 6, these operations being performed at proper times, according to the positions which the delivery-carriage attains in its reciprocatory movements.

The shaft 42 supports forwardly-projecting sheet-stops 3, whose forward ends are bent downward, so that they may intercept the pathway of the sheets and act to temporarily arrest their forward movement. This shaft 42 is supported in arms 22, fast upon the shaft 41, and hence is raised and lowered by its rocking movements, and the shaft 42 is rocked to raise and lower the stops 3, as required, by means of an arm 8, fast to the shaft 42 and having its ends playing in an elongated hole in a detent-arm 2, rising from the carriage.

This carriage is reci rocated b means of l racks 35 36, attached to pairs of running sleeves 2O 30, which slide on the guide-rods 21 31, being driven by pinions 37 at opposite -sides of the carriage, the shaft 5 on which said pinions are mounted being-rotated by bevel-wheels 38 39 through a vertical shaft 71, which in turn is driven by bevel-Wheels 72 73 from a pinion 74, rotated in opposite directions by suitably-timed movements of a swinging segment-rack 75, actuated bya rod 76 from a crank-wheel 77. For cooperation with this delivery-carriage there are provided near the impression-cylinder C conductors or guides 7, which are supported by a rod 1S and extend from near the surface of the impression-cylinder outward to a point at or near that at which the fingers reach when they nearest approach the impression-cylinder, thus forming with the said lingers a continuous guide for the sheets from the impressioncylinder to the stops 3.

For carrying' the sheets outward from the impression-cylinder into position on the iingers 46 or up to the stops 3 carrying-tapes 1 are stretched from pulleys 16 near the cylinder to pulleys 17, mounted on the shaft 45, which tapes are driven at an appropriate speed by means of a' pinion 12 on the shaft of tape-pulleys 16 and an intermediate 11 geared with a toothed wheel 10 on the cylinder-shaft. Each printed sheet as it leaves the impression-cylinder C is guided by the conductors 7 onto the tapes 1, and by the latter is moved outward in a slightly-inclined plane over the lingers-46 until it reaches the stops 3, which are then in their depressed position, as seen in Figs. 1 and 5. The leading ends of the sheets thus arrive directly beneath the margin-rollers 90, which are then raised so as to be non-operative and so held by the levers S2.

' As soon as the sheet has reached this posi- 'tion the delivery-carriage begins its outward stroke, during which, although the rack 64 rotates the ratchet-wheel 63, the pawl 9 drags inactively over the same. During the initial movement of the outward stroke of the carriage the arms S0, which support the marginrollers 90, are held in their upper position by reason of the rock-arm 81 being locked in its forward position by the detent or locking lever S2. ment has proceeded for ashort distance or before the outward stroke of the delivery-carriage is completed, the lever 82 is raised by contact with the tappet 6, thus tripping the lever and causing it to release the rock-arm 81, which then being free to rock permits the margin-rolls 90 to drop upon the deliveryroller 50, upon which they nip the sheet, so that it will partake of the movement of the said delivery roller when the same takes place. The shaft 4l rocks downward simultaneously with the descent of the rolls 90, thus causing the rock-arm 8, by reason of its confinement in the detent-arm 2, to move the shaft 42 slightly upward, thus raising the stop 3 out of the pathway of the sheet, which is then free to move beyond them.

When, however, this outward move- When the outward stroke of the delivery- Y carriage has been completed, the sheet will be in a position overlying the piling-table, as in Fig. 3. A reverse movement of the carriage then being made, the delivery-roller 50 will be rotated by means of the wheel 63, then driving 'the same by engagement of its ratchet-wheel 62 by the pawl 9, carried by the intermediate 61, which latter drives the pinion 60 on the shaft of the delivery-roller, the result of which is, as seen in Fig. 4, that the sheet theretofore transported by the iingers 4G is carried off from the fingers by being rolled out between the margin-rolls 90 and the delivery-roller 56, being thus laid upon the piling-table 99 or the previously-printed sheets accumulated thereon. As the delivery-carriage again approaches the impressioncylinder to receive another sheet the rockarm 81 will contact with the stop 19, thus raising the margin-rolls 90 and dropping the stops 3, while the lever 82, passing beyond the tappet 6, gravitates to lock the arm Sl and hold said rolls in their raised position. Thus each succeeding sheet delivered by the impressioncylinder C is guided therefrom by the conductors 7 and is propelled over or onto the fingers 46 by the tapes 1, which movement is suspended by contact with the stops 3, when the sheet, which is thus laid upon the fingers 46 printed side up, is nipped by the marginrolls 90, carried outward over the piling-table by the moving carriage, and there deposited by the rolling action of the delivery-roller 50, no mechanism or device having contacted with its freshly-printed surface, which is uppermost.

In order to attain the highest speed, it is desirable that the tripping action whereby the margin-rolls are brought into active relation to the delivery-roller shall take place at IOO IIO

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some time during the outward stroke of the l carriage, but the mechanisms will be e'ective if the margin-rollsare suspended by contact of the arm 81 with the stop'19, as in Fig. 5, while the sheet is running, said marginroll's descendingat once to nip the sheet as the carriage takes up its outward stroke and the rock-arm 81 leaves the stop 19. This would dispense with the lever 82 and its operative devices.

What is claimed is- 1. The combination with a sliding sheetdelivery carriage, and means for reciprocating the same between its sheet-receiving position and over the piling-table, of a rotating delivery-roller 50 and margin-rolls 90 supported by the carriage andoperating rst'to' nip the sheet during the outward movement of the carriage, and then to positively roll the sheet therefrom during the return stroke of the carriage, onto the piling-table, substantially as described.

2. The combination with a sliding sheetdelivery carriage, carrying tapes propelling the sheet onto the carriage, and means for reciprocating the carriage from its sheet-receiving position to one over the piling-table, of means on the carriage operating by nipping contact to hold the front edge of the sheet during the outward movement of the carriage and to positively roll the sheet from said carriage, during its return stroke, onto the piling-table, substantially as described.

3. The combination witha sliding sheetdelivery carriage, and means for reciprocating the same between its sheet-receiving position and over the piling-table, of a rotating f delivery-roller 50 and margin-rolls 90 moving with the carriage and operating first to nip the sheet during the outward movement of' the carriage and then to positively roll the sheet from said carriage during its return stroke onto the piling-table, and a fixed rackA 64 and intermediate mechanism driven thereby to revolve the roller 50, substantially as described.

4E. The combination with a sliding sheetdelivery carriage, means for reciprocating the same between its sheet-receiving position and over the piling-table, a rotating deliveryroller 50, and margin-rolls 90 moving with the.

carriage and operating first to nip the sheet during the outward movement ofthe carriage, and to positively roll the sheet from said carriage during its return stroke onto the pilingtable, of a fixed rack 64, pinion GO revolved thereby, and a clutch mechanism intermediate of the rack 64 and pinion 60, whereby the latter is rotated in one direction only, substantially as described.

5. The combination with a sliding sheetdelivery carriage, means for reciprocating the same between its sheet-receivin g position and over the piling-table, and rotating devices supported by the carriage and operating by nipping contact therewith to nip and hold the sheet during the Outward movement of the carriage, and to positively roll the sheet from the carriage onto the piling-table, of means for bringing the same into coactive relation vto nip the sheet, substantially as described.

6. The combination with a sliding sheetdelivery carriage, means for reciprocating the same between its sheet-receiving position and over the piling-table, rotating devices for rolling the sheet from the carriage onto the piling-table, and means for bringing the same into coactive relation to nip the sheet, of sheet-stops and means for vibrating them, substantially as described. i

7. The combination with a sliding sheetdelivery carriage, means for reciprocating the same between its sheet-receiving position and over the piling-table, a delivery-roller and margin-rolls for rolling the sheet from the carriage onto the piling-table, of a rock-arm 81, and stop 19 whereby the margin-rolls are controlled in relation to the delivery-roller, substantially as described.

8. The combination with a sliding sheetdelivery carriage, means for reciprocating the same between its sheet-receiving position and over the piling-table, a delivery-roller and margin-rolls for rolling the sheet from the carriage onto the piling-table, of a rock-arm 81, locking-lever 82 and tripping device, whereby the margin-rolls are brought into coactive relation with the delivery-roller, substantially as described.

9. The combination with a sliding sheetdelivery carriage, means for reciprocating the IOO same between its sheet-receiving point and over the piling-table, a delivery-roller and margin-rolls for rolling the sheet from the carriage onto the piling-table, a rock-arm 81 and locking-lever 82,Y and a tripping device whereby the margin-rolls are brought into coactive relation to the delivery-rollenof a stop, as 19, for raising the margin-rolls, substantially as described.

` 10. The combination with an impressioncylinder and sheet-propelling tapes leading outward therefrom, of a reciprocating sheetdelivery carriage consisting essentially of fingers 4.6 for receiving and transporting the sheets, a delivery-roller, as 50, propelled in one direction only, and margin-rollers, as 90, substantially as described.

11. The combination with an impressioncylinder and sheet-propelling tapes leading outward therefrom, of a reciprocating sheetdelivery carriage consisting essentially of fingers 46 for receiving and transporting the sheets, vibrating sheet-stops, a delivery-roller, as 50, propelled in one direction only, and margin-rollers, as "90, substantially 'as described. l l v In testimony whereof I have hereunto set my hand in the presence of two subscribing F. W. H. CRANE, E. L. SPEIR.

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