US687659A - Distributing-roller for printing-presses. - Google Patents

Description

No. 687,659. Patented Nov. 26,1901. 6. A. SCHRIVER.

DISTRIBUTING ROLLER FOR PRINTING PRESSES.

(Application filed Apr. 5, 1901.) (No Model.)

INVENTOI? UNITED STATES PATENT rrrcn.

GEORGE ALBERT SOHRIVER, OF BROOKLYN, NEl/V YORK, ASSIGNOR OF ONE-HALF TO ALFRED H. SOHRIVER, OF BROOKLYN, NElV YORK.

DISTRIBUTING-ROLLER FOR PRlNTlNG-PRESSES.'

SPECIFICATION forming part of Letters Patent N 0. 687,659, dated November 26, 19-01. Application filed April 5, 1901. Serial No. 64,456. (No model.)

To ztZZ whom it may concern:

Be it known that I, GEORGE ALBERT Sonar- VER, a citizen of the United Statesgand a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Distributing-Roller for Printing-Presses, of which the following is a full, clear, and exact description.

The object of the invention is to provide certain new and useful improvements in printof a distributing-roller F, and a similar roller ing-presses to insure a thorough and equal distribution of the ink on the inking-rollers.

The invention consists of novel features and parts and combinations of the same, as will be fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding partsin all the views.

Figurel is a front elevation of the improvement as applied. Fig. 2 is a side elevation of the same. Fig. 3 is an enlarged front view of the distributing-roller mounted 011 a spin dle, parts being shown in section. Fig. 4 is a plan view of the bearing for the distributingroller and its. support, and Fig. 5 is an enlarged front elevation of a modified form of the improvement.

Inking-rollers A A A of usual construction are journaled in an inking-roller frame B, connected by a link (J with an arm D on a rock-shaft E, so that when the printing-press is actuated a reciprocating movement is given to the frame B, and thus the inking-rollers A A A are supplied with ink and distribute the same over the type in the usual manner. The peripheral surfaces of the inking-rollers A A are engaged by the peripheral surface F engages the rollers A A Each of the rollers F F is mounted to turn and to slide lengthwise on a spindle G, having its flattened end G loosely engaging an elongated slot in a head H of a bearing H, .yieldingly mounted on a support I, fastened by a set-screw J to the inking-roller frame B, as is plainly illustrated in Fig. 2. Each bearing H is pressed on by a spring H resting with one end on the support I and with its other end on a pin H carried in the bearing H. Thus the spring H serves to pull on the bearing H and draw the spindle G and the distributing-roller F or F inward to hold the said distributing-rollers in firm contact with the inking-rollers A A Plus G are secured in the flattened ends G of the spindles G inside of the bearings H to hold the spindles against movement in the direction of their length.

On the inside of each distributing-roller F F is formed a nut F engaging a screw-thread G on the corresponding spindle G, so that when the press is in operation and the inkingrollers A A A 'rotate then a corresponding rotary motion is given to the distributingrollers F F, and by the nuts F and the threads G the said distributing-rollers are moved in the direction of their length, so that a further uniform and equal distribution of the ink on the inking-rollers A A" A is had. The threads G and the nuts F of the rollers F F extend in opposite directions, so that when the press is in motion then the distributing-rollers F F travel in opposite directions to their length to insure a perfect distribution of the ink on the inking-rollers.

In one end of each of the distributing-r011- ers F F is arranged a spring K, pressing with one end against a collar or flange F in the outerend of the corresponding roller, so as to insure a ready return movement of the roller F or F in case the nuts F have moved out of engagement with the threads G at the time the distributing-roller F or F has trav eled to an extreme outermost position on the corresponding spindle G. The flattened ends of the spindles G have movement in the heads H of the spring-pressed bearings to allow the distributing-rollers to readily adjust themselves relatively to the inking-rollers A A and A A The above-mentioned collar or flange F besides serving as a stop for the spring K acts also as a journal-bearing, whereby the inkcylinder is supported upon the spindle G and is properly spaced therefronn This feature is very important, because as the threads become worn by use the inking-cylinder normally tends to leave its proper position, and should therefore be held in place by some additional part independently of the threads.

Moreover, this collar or bearing is easily replaced when worn out and saves the more expensive parts from excessive wear. It is lubricated like any other hearing.

The connection between the spindle and its hearing may be differently arranged-for instance, as shown in Fig. 5, by having the flattened end i of the spindle formed with an elongated slot G through which extends a bolt L, carried by a support I, fastened to the inking-roller frame B by the set-screw J.

It is evident from the foregoing that the means for moving the distributing-roller in the direction of its length on the corresponding spindle G are completely out of sight, as they are contained within the distributingroller, and the means are not liable to get out of order. It will further be seen that by the construction set forth the spindles are held against movement in the direction of their length and cams and like devices heretofore employed for shifting the distributing-rollers bodily with their spindles are entirely dispensed with, and said spindles are free to yield, so as to readily hold the distributingrollers in proper contact with the inking-rollers. By having the supports I removably connected with the inking-roller frames it is evident that my device can be readily applied to any existing machine or removed therefrom whenever desired.

Having thus fully described my invention, I claimas new and desire to secure by Letters Patentl. Inaprinting-presshavinginking-rollers, a distributing-roller comprising two concentric members, one fixed and the other free to rotate, and a spring engaging both of said members, as and for the purpose set forth.

2. In a printing-press, a composite distributing-roller comprising a central spindle fixed against rotation, an outer cylinder threaded upon said spindle, a journal-bearing between said spindle and said cylinder, and a spring engaging said spindle and said cylinder.

3. A printing-press havinginking-rollers, a distributing-roller in peripheral contact with the inkingrollers, a spindle held against movement in the direction of its length and on which the said distributing-roller is mounted to turn and to slide in the direction of its length, means between the distributing-roller and its spindle, to cause the distributingroller to travel in the direction of its length when rotated by said inking-rollers, and bearings held on the inking-roller frame and engaged by the ends of said spindle, said bearings having elongated openings for the flattened ends of the spindle to slide in, as set forth.

4. A printing-press havinginking-rollers, a distributing-roller in peripheral contact with the inking rollers, a spindle held against movement in the direction of its length and on which the said distributing-roller is mounted to turn and to slide in the direction of its length, means between the distributing-roller and its spindle, to cause the distributingroller to travel in the direction of its length when rotated by said inking-rollers, bearings for the ends of the spindles, supports on the inking-roller frame, and springs pressing the hearings to hold the distributing-roller in firm contact with the inking-rollers, as set forth.

5. Inaprinting-presshavinginking-rollers, a composite distributing-roller comprising two concentric members provided respectively with male and female threads, a journal-bearing connecting said members independently of said threads, and a resilient member adapted to hold said concentric memhere in a position where the said threads will engage each other, substantially as described.

6. A printing-press having inking-rollers, a distributing-roller in peripheral contact with the inkingrollers, a spindle held against movement in the direction of its length and on which the said distributing-roller is mounted to turn and to slide in the direction of its length, and means between the distributingroller and its spindle, to cause the distributing-roller to travel in the direction of its length when rotated by said inking-rollers, said means comprising a thread on the spindle, a nut on the distributing-roller, and a spring in the distributing-roller, for pressing the latter in the direction of its length, as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE ALBERT SOHRIVER.

Witnesses:

SPENCER M. SCHRIVER, WILLIAM J. DRIVER.

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