US650579A - Margin-roller for rotary printing-machines. - Google Patents

Description

No. 650,579. Patented ma -29, I900.

A. COLE. I

MARGIN ROLLER FOR ROTARY PRINTING MACHINES. (Application filed Mai 11, 1899.) (No Model.) 3 SheeIsv-Sheet I.

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No. 650,579. Patented May 29, I900.

' A. COLE.

MARGI N ROLLER FUR ROTARY PRINTING MACHINES.

' (Application filed May 11, 1599. (No Model.) 3 Sheets8hee 2.

@12 7: eweqn 172061222 WQ W 60% No. 650,579. Patented May 29, I900.

A. COLE. I v

MARGIN ROLLER FOR ROTARY PRINTING MACHINES.

(Application filed. May 11., 1899.) (No Model.) 3 Sheets$heet 3.

%Znessea fizz/6212221 UNITED STATES PATENT Orrin.

AROHIBALDCOLE, OF PLAINFIELD,'NE\V JERSEY, ASSIGNOR TO THE ALUMINUM PLATE AND PRESS COMPANY, OF SAME PLACE'AND NEW YORK, N. Y.

MARGlN-ROLLER FOR ROTARY PRINTING-MACHINES.

SHECIIEICATION forming part of, Letters Patent No. 650,579, dated May 29, 1900.

Application filed May 11, 1899. Serial No. 716,430. (No model.)

To all whom it may concern:

Be it known that I, ARCHIBALD COLE, a citizen of the United States,residin g at Plainfield, in the county of Union and State of New Jer- 5 sey, have invented certain new and useful Improvements in Margin-Rollers for Rotary Printing-Machines, of which the following is a specification.

This invention relates to the mounting of t the small pressure rollers or pulleys which are employed to grip the margins of sheets by pressure on the cylinder by which they are carried, so as to compel the proper movement of the sheet with the cylinder on which it is' r carried after the spring-grippers let go their hold of the forward edge of the sheet to permit its delivery from the delivery-cylinderto the flies or from one cylinder to another. The improvement consists in mounting such margin-rollers on yielding arms to enable them to rise sufficiently to permit the passage beneath them of the grippers or other projections on the cylinder. This is especially adapted to delivery-cylinders with grippers 2 5 closing on pads or any raised surface on the cylinder when the margin of the sheet comes directly over the deliverygripper. The margin-rollers after yielding to permit the passage of the grippers engage automatically and eifectively with the margins of the sheet.

The invention is primarily designed for use in connection with the delivery-cylinder of a rotary printing-press, and in order that it may be clearly understood it will suffice to show and describe it in this connection, though it may be applied to other cylinders.

In the accompanying drawings, Figure 1 is a plan view of a portion of the delivery-cylinder of a printing-press with my invention applied. Fig. 2 is an end view thereof,partly in section, showing the normal position of the parts, with the margin-roller in contact with the surface of the cylinder. Fig. 3 is a similar View showing the margin-roller lifted by the passage of the gripper beneath it.

1 represents a part of the delivery-cylinder of a rotary cylinder-press, and 2 2 grippers carried thereby mounted on an oscillating shaft 3 in customary manner by which the grippers are released at the proper time, caused to engage the edge of the sheet, and are lifted at the proper time to discharge it.

4 4 represent pads on which the points of the grippers rest in holding the edge of the sheet. The pads 4 4 are for the purpose of providing surfaces coincident with the surface of the impression-cylinder at the point of transfer of the sheet to the delivery-cylinder, said pads spanning the space between the impression and delivery cylinders, which is provided to allow the impression-cylinder to be moved away from the plate-cylinder toward the delivery-cylinder.

6 represents one of the margin-gripping rollers, having a rim 7, of suitable yielding material and mounted in hearings in a frame 8, oscillating on a fulcrum-pin 9 in an adjustable bracket 10. The bracket 17, in which the bracket 10 has longitudinal adjustment, is capable of angular adjustment on a'fixed 7o supporting-rod 18 and is held in the required position by a set-screw 19. 20 is a set-screw by which the bracket 10 is fixed in any posi tion in which it is set. By these two adj ustments I am enabled to set the pressure-rolls in position to suit any desired change in point of delivery. A spring 11, mounted on the bracket 10 and bearing at its free end on a nut 12, by which the fulcrum-pin 9 is secured, or on any other suitable attachment to the frame 8, enables the margin-roller to rise to permit the gripper to pass beneath it and at other times presses it down into effective contact with the surface of the cylinder 1.

A set-screw 13, working in the projecting heel 14 of the oscillating frame 8 and provided with a jam-nut 15, serves to limit the movement of the oscillating frame by contact with a shoulder 16 on the bracket 10.

- When a fixed margin-roller arm is used, 0 the grippers and pads have to be removed, thus causing inconvenience and loss of time and the probability that the grippers and pads may not be replaced in proper position. With the automatically yielding margin- 5 roller arms the grippers and pads do not have to be disturbed.

Having thus described my invention, the

following is What I claim as new therein and desire to secure by Letters Patent:

1. The combination of the cylinder 1, projecting gripper, margin-roller, oscillating arm or frame 8 and spring-pressing the marginroller down on the cylinder, as explained.

2. The combination of thecylinder 1, grip-- 11, and set-screw 13, substantially as and for the purposes set forth.

4. In combination with the cylinder 1 the margin pressure-roller 6, oscillating springpressed frame or arm 8 in which said roller has its bearings, adjustable bracket 10 in Which the oscillating frame or arm 8 is fulcru med and the an gularly-adj-ustable bracket 17 in which the bracket 10 is adjustably mounted, substantially as and for the purposes set forth.

AROHIBALD COLE. Witnesses:

WM. E. KNIGHT, M. V. BIDGOOD.

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