US564626A - Printing-press - Google Patents

Description

(No Model.) 2 sheets sheet 1.

S.-R. KRAMER.

PRINTING PRESS.

N0. 564,626. Patented July 28,1896.

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UNITED STATES PATENT OFFICE.

SAMUEL R. KRAMER, OF PERKASIE, PENNSYLVANIA.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent No. 564,626, dated. July 28, 1896.

Application filedDecemher 12", 1895. Serial No. 571,867. (No model.)

To all whom it may concern.-

Be it known that I, SAMUEL R. KRAMER, a citizen of the United States, and a resident of Perkasie, Bucks county, Pennsylvania, have invented certain new and useful Improvements in Printing-Presses, of which the following is a specification.

My invention relates to improvements in. printing-presses, and more particularly to improvements in that class of reciprocating printing-presses which are used for miscellaneous printing and generally known to the trade as job-presses. Printing-presses of this kind are constructed witha type-form carrier and platen, one or both of which are capable of being reciprocated, and are particularly adapted for printing upon separate sheets of paper which are ordinarily separately fed to the press by hand.

The object of my invention is to furnish an attachment for printing-presses of this class which will, when desired, enable the printing to be done upon a continuous sheet of paper, and the action of which will be entirely automatic.

In the accompanying drawings, forming part of this specification, and in which similar letters of reference indicate similar parts throughout the several views, Figure 1 is a sectional side elevation, taken on line 1 2, Fig. 2, of a Gordon job-press furnished with my attachment; Fig. 2, a plan of the press furnished with my attachment; Fig. 3, a perspective view of the upper or feed roller of my attachment, showing a device for perforating the continuous sheet of paper.

A is the main frame of a printing-press B,the type-form carrier; 0, the platen; andD,pivot upon which the type-form carrier and platen are carried. The press illustrated in the drawings is the one that is in general use for job purposes and is known as the Gordon jobpress. In this press the type-form carrier B and the platen O are at their lower ends carried upon a shaft or pivot D, upon which they can turn. Suitable mechanism (not shown) is driven by a main shaft E, by means of which the carrier 13 and platen O are caused to move toward and away from one another.

This

' or to extensions M on this frame, and thence mechanism is so well known as to need no further description or illustration here.

F F are frames which may form part of or be bolted or otherwise suitably secured to the main frame A of the machine.

G is a roll of paper carried upon a shaft H, 5 5 which is carried by suitable bearings in frames F F. V

I is a tension-roll carried by frames F F;

J, a feed-roller carried by frames F F.

The paper passes from roll G to and under roll I, thence up and over roll J, thence down, between type-frame carrier B and platen O, to and under a tension-roll K, which is carried upon arms L L, pivoted to the frame A to the roll N, upon which it is finally wound.

Upon the shaft J, which carries feed-roll J, is loosely carried a bell-crank leverO, the upper arm of which carries one end of a rod P, the other end of which is carried by an arm R, carried on the other end of shaft J.

S is a feed bar or finger carried by the rod P, the forward or operating end of which is forced down against the paper on roll J by means of suitable springs T, carried by rod P.

The lower or horizontal arm of the bellcrank O carries the upper end of a rod U, the lower end of which is pivotally attached to the platen O or to the casting which carries and moves with the platen. 1

Then the type-form carrier B and the platen O are separated, after having been in contact in order to take an impression from the type, the lowering of the latter draws down rod U, which causes the bell-crank 0 to turn forward upon shaft J and with it the feed bar or finger S, the forward end of which engages and forces the paper down against the roll J and causes the paper and roll J to move forward during the entire downward movement of the platen.

The movement of the bell-crank, in order to feed a greater or less amount of the paperforward, may be regulated by shifting the upper end of rod U in or out on the lower arm of the bell-crank, means for adjustably securing the former to the latter being shown.

When the platen reaches the end of its outward stroke and commences to rise, the bellcrank and its connected parts are moved backward. A spring V or other suitable device, carried by frame F, engages the end of roll J and prevents this roll from turning, and the feed-bar S simply slips back over the surface of the paper.

The paper having been fed forward, as described, the tension-roll K, which is carried on the arms L L, and under which the paper passes, falls and keeps the paper taut.

a is a pulley-wheel which is carried by an arm I), pivoted to frame M at 0. cl is a stud carried by arm b, which is adapted to be engaged and lifted by arm L of tension-roll K. e is a pulley on the shaft f, which carries roll N, upon which the paper is wound after having been printed. it is a pulley on main driving-shaft E. t' is a crossed belt connecting pulleys e and 72.

When the paper is fed forward and roll K falls, as above described, the pulley a falls until it comes in contact with belt a}. This belt is loose on pulleys e and h, and until the pulley a falls upon it it does not transmit the rotation of pulley h, which is constantly turning with shaft E, to pulley a. As soon, however, 'as pulley a falls on the belt it tightens it and the pulley e commences to revolve, turning roll N and winding the paper thereon. As the paper is wound on roll N the loop in the paper in which roll K is carried is shortened and this roll and its connected parts are raised. This continues until the arm L engages stud (l, lifting this stud up and the pulley at away from the belt 6, which then becomes inoperative and-the driving of the pulley ceases to be again brought into action when the paper is fed forward from the supply-roll G, and the roll K falls, as heretofore described.

The continuous sheet of paper having 'received the impression from the type may be sheared or cut into lengths in any suitable manner.

In Fig. 3 the forward or operative edge of the feed-bar S is shown furnished with a row of points or teethj, which, when the bar feeds the paper forward, are adapted to perforate the paper from side to side to facilitate tearingit into separate sheets.

My attachment may be readily applied to any job-press and may be almost instantly thrown into or out of action.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination in a printing-press of a reciprocating platen, a paper-feed roll, a paper-feed bar or finger adapted to force the paper against said roll, means for carrying said paper-feed bar or finger, means for forcing the forward edge of said bar orfinger against said roll, and means, operated by the movements of said platen, for causing said feed bar or finger to intermittently feed a continuous sheet of paper to the printing-point of the press.

2. The combination in a reciprocating printing-press of a reciprocating platen, a paperfeed roll, a bell-crank lever loose on one end of the shaft of said roll, an arm loose upon the other end of the shaft of said roll, a rod connecting the upper ends of one of the arms of said bell-crank and arm, a feed bar or finger carried by said rod, a spring for forcing the forward end of said bar or finger against said roll, a rod for connecting said bell-crank and platen, and means for preventing the retation of said feed-roll on the return or nonoperative movement of said feed bar or finger, all substantially as and for the purposes set forth.

3. The combination with a printing-press of the class described, of amain shaft, a pulley on said shaft, a shaft adapted tocarry a paper-roll, a pulley on said shaft, a loose belt connecting said pulleys, a tension-roll, arms upon one end of which said roll is carried and the other ends of which are pivotally connected to the frame of the press, a pulley adapted to be thrown into orout of contact with said belt by the lowering or raising of the arms which

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