US270267A - yan allen - Google Patents

Description

(No Model.) 2 Sheets -Sheet 1..

G. W. VAN ALLEN. DELIVERY MEGHANISM FOR PRINTING PRBSS BS. No. 270,267. Patented Ja.11.9,1883.

WITNESSES: y gggw ATTORN EY.

Nv PKTERS. mlo-umo wlw, Wash nginn. DC.

(No Model.) 2 Sheets-Sheet 2.

' G W. VAN ALLEN.

DELIVERY MECHANISM FOR PRINTING PRESSBS.

No. 270,267. Patented Jan. 9,1883.

(f1 INVENTOR g w 7 Ara-$660 4 M a. fazzzr m ATTORNEY.

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UNTTED STATES PATENT .EErcE.

GEORGE W. VAN ALLEN, OF NEW YORK, N. Y.

DELIVERY MECHANISM FOR PRINTING-PRESS ES.

SPECIFICATION forming part (if Letters ratent No. 270,267, dated January 9, 1883.

' Application filed June 24,1881. (No model.)

i I do hereby declare that the following specification, when taken in connection with thedrawings which accompany and form part of the same, isa description of my invention, s'ufficient to enable those skilled in the art to practice it. p

My invention relates to improvements in the means or mechanism for delivering sheets of paper from cylinder-presses after the same have been printed; and the object of my invention is to provide a positive means for the delivery of such sheets of paper from the impressioncylinder. I attain this object by the mechan ism illustrated in the accompanying drawings, in which Figure 1 is a side elevation of the machine. Fig. 2 is a longitudinalsectional elevation there of. Fig. 3 is a plan view thereof. Fig. atis a top view of one of the delivery-grippers as atfixed to one of the belts. Fig. 5 is a sectional side elevation of one of the delivery-grippers.

0n the frame A is mounted the impressioncylinder B in the usual manner, said impression-cylinder being provided with grippers operated by suitable mechanism, and so adjusted that they take their hold on the sheet at the .able bearings and parallel with the axis of the impression-cylinder. Upon the shaft is secured a spur-gear, E, which. meshes with the driving-gear F on the shaft of the impressioncylinder, and by means of these gears the said shaft D, with its attachments, is rotated in a direction opposite to that in which the impression-cylinder turns. The operation of the adj ustable spur-gear E is such that when it is desired to delive r a sheet of paper with a, wide margin the set-screw of the adjustable spurgear E is loosened, which releases the gib-key and allows the shaft to which the delivery-pulleys are attached to be turned back to a sufflcient distance, so that the grippers on the delivery-belts will take the edge of the sheet as it is delivered by the grippers of the impression-cylinder, and vice versa if the margin is narrow. The set-screw is then tightened, and the delivery mechanism is ready for operation. This method of adjustment of the spur-gear wheel E circumferentially on the shaft to which the pulleys of the delivery-cylinder are attached enables themachine to be adjusted readily to deliver any desired width of margin. The hubs of the pulleys or-wheels composing said delivery-cylinder are provided with setscrews, by means of which said pulleys are secured longitudinally on the shaft D. This arrangement enables the said pulleys or wheels to be set and secured at any desired point on the shaft, so as to properly deliver any width said flier. The fly-fin gers of the sheet-flierH are held by means of adjustable clamps, furnished with set-screwsforsecuriu g them to the grooved stock or shaft, as shown in Fig.3 of the drawlngs.

I are endless delivery-belts, carrying independent grippers K, said grippers being provided with cranks and springs for opening and closing the same, as shown in Figs. 4: and 5. At the proper time the said grippers are opened by their cranks passingover suitably-arranged cams N and O, and are automatically closed by their springs. These delivery-belts are also provided with a series of buttons, L, secured to their surfaces, said buttons having points on which the sheet rests while being delivered .to support it above the surface of the belt and grippers on the impression-cylinder, and 0 are 1. In a cylinder,printing-press,thecombina- 25 similarly-adjustable cams for opening the delivery-grippers and releasing the sheet at the proper time, in order that the sheet-flier may deposit it on the delivery-tal'ile.

The operation of this improved machine is such that the sheet is fed into the press in the usual way. The grippers ofthe impression-cylinder take the sheet, hold it during the operation of printing, and at the proper time deliver it to the independent grippers K, affixed to the delivery-belts, which instantly close upon it and carry it over the delivery-cylinder to and over the sheet-flier, when the cams 0 open the grippers, thereby releasing the sheet, which is deposited by the flier on the receiving-table. Owing to the positive action of this delivery mechanism, there is no possibility of the sheet slipping on the belts, and it is also kept entirely above the surface of the belts by the action of the buttons L, thereby removing all possibility of smutting.

WhatI claim as myinvention, and desire to secure by Letters Patent, is-

tion of an impression-cylinder provided with grippers, a delivery-cylinder, consisting of a series of adjustable recessed flanged wheels, a series of belts carrying grippers, chucks, and buttons or rests, a second series of flanged and recessed wheels or pulleys arranged in close proximity to asheet-flier, so that the belts pass ing over the two series of pulleys are above the plane of rest of the sheet-flier, and a sheetfiier, all arranged and combined as specified.

2. In a cylinder printing-press, the combination of a sheet-flier, a receiving-cylinder provided with belts carrying grippers and buttons or rests, and an impressioncylinder provided with grippers, but withouttapes, all arranged and combined as specified.'

G. W. VAN ALLEN.

Witnesses:

'l. H.G. MErNERs, PHILLIPS ABBOTT.

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