US442536A - G ripper-perforator - Google Patents

Description

(No Model?) W. T. NIG KERSON.

V GRIPPER PBRFORATOR.

Patented Dec. 9-

IL-masses Etta r-ru w NITED STATES Futon.-

ATENT GRlPPER-PERFORATOR.

SPECIFICATION forming part of Letters Patent No. 442,536, dated December 9, 189 0.

Application filed August 9, 1890. Serial No. 361,576. (No model.)

i'lo aZZ whom it may concern.- Be it known that I, WILL T. NIOKERSON, a citizen of the United States of America, residing at W'orthingtomin the countyof Greene and State of Indiana, have invented certain new and useful Improvements in Gripper- Perforators, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention pertains to certain new and useful improvements in grippers for printing-presses, having for its object the production of simple and highly-efficient improved means for perforating the paper while being printed.

The invention comprises a convexed bar having a series of holes or openings and a gripper-arm having a perforated concaved portion and a yielding or spring-held bar or plate carrying perforating pins or teeth, substantially as hereinafter fully set forth, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in perspective showing my improvements attached to a portion of a printingpress. Fig. 2 is a view of the perforating gripper-arm. Fig. 3 is aview of the perforating convexed bar detached. Fig. 4 isatransverse sectional view on the line a: as, Fig. 2. Figs. 5 and 6 are details.

Referring to the drawings, A designates a bar or rod,which is convexed on its outer surface and provided throughout with a series of holes or perforations a. The under side of this bar is concaved to permit the punohings to fall freely to the floor. This bar is provided with widened flattened ends a a which have right-angular flanges a for fitting over the upper and lower ends of the platen P of a printing-press. Through the flange a of the upper end a work two thumb-screws B, by which the bar is secured in position. From the lower flattened end a project two short parallel lugs or studs 1).

O is the perforating gripper-arm. It comprises a bar D, which is concaved on one face, between two parallel flanges d. A series of and is slightly wider than the latter.

lugs or studs Z) of bar A when the parts are brought together, and thus cause the holes or perforations of bar A and arm or bar D to coincide. A slot d is formed in the lower end of bar D for the insertion therethrough of a screw eof a two-part clamp E, by which the same is secured to the gripper shaft S of the press, said parts being united by a thumb-screw 6, working in the ends thereof.

F is the movable bar or plate, provided with a series of perforating teeth or pins f, designed to pass through the holes or perforations of the arm or bar D and bar A. This bar or plate is secured at its ends on short screws or posts f of bar D, and it and its pins are normally held retracted by coil-spring f encircling said posts or screws and located between arm or bar D and bar or plate F. To the rear side of the latter is secured (or it may be formed therewith) a slug or block g, which extends to near the ends of said bar or plate This slug or block serves to make the parts the same height as the type, and thus insure the depression of the perforating-pins at each operation of the machine.

In practice the bar A is secured at the de sired point across the face of the platen, and the gripperarm is so adjusted on its shaft by the clamp E as to cause the holes or eyes thereof to coincide with the lugs or studs of bar A when the parts are brought together at each impression of the type. \Vhen the latter occurs, the bar or plate carrying the per forating-pins is depressed as against the action of the springs, and the pins thereof are forced through the coincident holes or perforations of the bar or arm D and the barA. Thus a series of holes is formed in the card or paper sheet previously placed over the outer convexed face of said latter bar. The punching-s or waste caused by the perforation are allowed to readily fall from the machine from beneath the concaved face of the bar A.

The advantages of my invention will be apparent to those skilled in the art to which it appertains, and it will be especially observed that a uniform pressure is secured throughout the length of the movable bar or plate, whereby all the perforating-pins are simultaneously depressed, thereby securing perfect results and holding the card or paper firmly in place while being printed and perforated. The parts are extremely simple, cheap, and durable, and not likely to readily get out of order or become deranged.

I claim as my invention 1. The herein-described improved gripperperforator, comprising the bar having an outer convexed face and a series of holes or perforations, the arm or bar having a concaved face and a corresponding series of holes or perforations, and the perforating-pins, substan tially as set forth.

2. The herein-described improved gripperperforator, comprising the bar having an inner 'concaved face, an outer convexed =face, andaseries of holes'or perforations, the-arm or=barl1avingan outer concaved face, parallelside fi'an-ges, and a corresponding seriesof holes onperforations, and themovablebar or plate=carry in g the perforating-pins, substantially asset forth.

The herein-described improved gripperperforator, comprising the bar having a series of holes or perforations and upper andlower widened ends and provided with short lugs or studs, the thumbscrews for securing said bar in place, and the perforating-arm having a lower extended flattened end provided With holes or eyes for the reception of said lugs or studs and carrying the spring-held bar or plate having the perforating-pins, substantially-as set forth.

4. Thecombinatiomwith the gripper-shaft of a printing-press and the bar secured tothe platen of such press and having a series of holes or perforations, of the perforating-arm 'havinga lower extended flattened end provided with a slot and the two-part clamp secured to said gripper-shaft and having a setscrew designed to be inserted 'ihrough said slot, substantiallyasset forth.

In testimony whereof -I affix my signature'in presence of two witnesses.

WILL T. NIOKERSON.

Witnesses: 7

WILLIAM H. COOPER, I. G. TOMLINSON.

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