US386350A - Ink-fountain for printing-presses - Google Patents

Description

(No Model.)

G. W'. PROUTY.

INK FOUNTAIN FOR PRINTING PRBSSES.

No. 386,350. Patented July 17, 1888.

Wdnesses wag/54 WM rge WProuly. 1Z1, 0, 6 M y i/ Jlliorney.

FNETED STATES ATENT FFl' INK-FOUNTAIN FOR PRlNTlNG-PRESSES.

SPECIFICATION fon'ning part. of Letters Patent No. 386,350, dated July 17, 1888.

Application filed November 7, 1887.

To all whom it may concern.-

Be it known that I, GEORGE \N. PROUTY, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Ink Fountains for Printing-Presses,of which the following, taken in connection with the accompanying drawings, is a specification.

My invention relates to ink-fountains for printing -presses; and it consists in certain novel features of construction, combination, and arrangement of parts, which will be readily understood by reference to the description of the drawings and to the claims to be hereinafter given, and in which my invention is particularly pointed out.

Figure 1 of the drawings is an elevation of so much of a printing-press having my improved inlcfountain applied thereto as is necessary to the proper understanding of my invention. Fig. 2 is a front elevation of my improved fountain. Fig. 3 is an end elevation of the same, the ratchetoperating lever being cut away. Fig. 4 is a vertical transverse section of the same on line a: 00 on Fig. 2; and Fig. 5 is an end elevation of the fountain, drawn to an enlarged scale, with a portion of the adjusting mechanism shown in section.

In the drawings, A is the frame of the machine, B is the platen, O is the inking-rollercarrying frame, D is the ink-distributing table, a a are the inking-rollers, and E is one of the platen drawbars, all constructed and operating in a well-known manner.

My improved ink-fountain is composed of the plate I), ribbed upon its back side, and provided with the ears 0 c, by which it is pivoted to the ears d d of the bar (I, the end pieces, 6 e, pivoted to said plate at its upper edge, one at each end, and the roll f, mounted in bearings in said end pieces, as shown. The bar d is provided with a central hub, d upon the side opposite to the ears d, by which it is secured to the hub g, projecting from the stand which supports the inkdistributing table. The wider rib, Z), of the plate I) has secured to or formed upon its lower edge an ear or huh, I), to which is pivoted the bolt h, which projects through the ear h on the bar d, and is provided with the adjusting-nut i, by means Serial No. 254,480. (No model.)

of which bolt and nut the fountain may be adjusted to the desired position to insure contact between the roll f and the upper inkingroll, a, when said roll is at the extreme of its upward movement. The end pieces, 6 e, are movable about their pivots for the purpose of adjusting the roll f to a greater or less dis tance from the front edge of the shallow ribj, formed on the lower edge of the front face of the plate I), by means of the screws 7c, nuts Z, and the springs m, said screws being secured to said end pieces, one to each, and pass through slots in the cars it, projecting laterally from the ears 0 0 of the plate I), as shown. By removing the nuts Z the end pieces carrying-the roll f may be moved upward into the position shown in dotted lines in Fig. 4., to facilitate the cleaning of the parts. The roll fhas an intermittent rotary motion imparted thereto by the ratchet-wheel 0, secured to the shaft of said roll, the pawl o, the lever 19, carrying said pawl, and the rod q, connecting the free or movable end of said lever 19 to the inking-roller-carrying frame 0, all as shown in Fig. 1, said roller-carrying frame being vibrated in any well-known manner.

The operation of my invention is as follows: The parts being in the positions shown in the drawings, the ink is placed between the rollf and the inclined front face of the plate I), and as the machine is operated and the inking-rollers descend to ink the form the leverp is raised and the pawl 0 is carried over one or more teeth in the ratchet-wheel, and when the said rollers are moved upward again said pawl engages with the ratchet-wheel and imparts a partial rotation to the roll f in the direction indicated in Figs. 4 and 5 by the arrow shown thereon. The roll f, when so rotated, carries upon its surface a certain thin coating of ink, the thickness of which is regulated by the adjustment of said roll to or from the rib j,which serves as a doctonplate to gage the thickness of the film of ink upon said roll. The upper inking-roller a, when it reaches the extreine of its upward movement, comes in contact with the roll f and receives therefrom a portion of the ink upon its surface and deposits it upon the ink-distributing table D.

The advantages ofthis fountain are its cheapness ofconstruction, ready adjustment, and its adaptability to be easily cleaned and kept in order.

What I claim as new, and desire to secure by Letters Patent of the United States, is

1. An ink -f0untain for printingpresses, composed of an inclined plate, two pivoted and movable end pieces, and an intermittentlyrevoluble roll having its bearings in said movable end pieces, and arranged to be revolved with its periphery in near proximity to the lower portion of the front face of the said inclined plate, and forming one side of the inkreceptacle.

2. The combination of the plate I), the movable end pieces, ee, the roll f, mounted in bearings in said end pieces, the adjusting-screws k, the nuts Z, and the springs m. all constructed, arranged, and operating substantially as and for the purposes described.

3. The combination of the inclined and pivoted plate b, the end pieces 6 e, the roll f, the screw-bolt h, pivoted to the rear of said plate, the nut i, and the bar d, provided with the ears d d and h, all constructed, arranged, and adapted to operate substantially as described.

4. The combination of the pivoted inclined plate b, the pivoted and movable end'pieces, e e, the roll f, mounted on said end pieces, the screws k, nuts Z, and springs m, for adjusting the roll f relative to the plate I), and the screw it and nut i, for adjusting the roll f and plate b relative to the inking-rollers a, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 5th day of November, A. D. 1887.

. GEORGE W. PROUTY.

\Vitnesses:

N. O. LOMBARD, WALTER E. LOMBARD.

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