US686718A - Printer's-ink fountain. - Google Patents

Description

No. 686,718. Patented Nov. l9, I90l. J. W. EGGLESTON.

PRINTERS INK FOUNTAIN.

(Application filed Sept. 20. 1900.)

2 Sheets-Sheat I.

(No Modal.)

ll/limssas N0. 686,7!8. Patented Nov. I9, IBM. J. W. EGGLESTDN.

PRINTERS INK FOUNTAIN.

(Application fiked Sept. 20. 1900.) (No Model.) 2 Sheets-Sheet 2.

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UNr'rnD STATES PATENT Oniucnt JAMES W. EGGLESTON, OF MINNEAPOLIS, MINNESOTA.

PRINTERS-INK FOUNTAIN.

SPECIFICATION forming part of Letters Patent No. 686,718, dated November 19, 1901.

Application filed geptember 20, 1900. Serial No. 30,569. (No model) To ctZZ whom it may concern:

Be it known that I, JAMEs W. EGGLESTON, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Printers- Ink Fountains; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention has for its object to provide an improved ink-feeding device for printing-presses; and to this end it consists of the novel devices and combinations of devices hereinafter described, and defined in the claims.

The invention is illustrated in the accompanying drawings, wherein, like characters indicating like parts throughout the several views, Figure 1 is a view in side elevation with some parts broken away, showing a portion of a printing-press of ordinary construction having applied thereto one of my improved ink-feeding devices. Fig. 2 shows the improved ink-feeding device in side elevation removed from the press, and Fig. 3 is a front elevation of the said ink-feeding device.

The numeral 1 indicates a portion of the framework of the press, and the numeral 2 indicates the rotary disk-like ink-pad or distributing-table, which is given a rotary motion in the ordinary or any suitable manner, not necessary for the purposes of this case to consider.

The numeral 3 indicates one of a pair of oscillating arms which carry spring-held rods 4, having suitable heads 5 and 6, in which the trunnions of the inking-rollers 7 are journaled. By the movement of the pair of the arms 3, but one of which is shown, the inking-rollers are moved from the positions indicated by full lines into the position indicated by dotted lines in Fig. 1 and back again, which movement, as is well understood, carries the said rollers over the face of the inking-pad or distributing-disk 2. So much is ordinary construction.

To suitably support my improved ink-feeding device in position for action, I provide a suitable bracket (1, which is preferably of the curved form shown in Fig. 1, the lower end of the same being detachably secured to the frame 1 by a set-screw a and the upper end of the same having, as shown, a flattened head a I I preferably employ an ink tank or receptacle b of segmental form, provided with a hinged lid 1), having a weight b The lid 1) is preferably made detachable, and for this purpose it is formed with open seat-s or hooks b ,which engage trunnions b, projected from the tank or receptacle 1) at or near its apex or angular corner.

To support the ink tank or receptacle 1), a rod fis shown as adjustably secured at its upper end by a set-screwf or other device to the head a at the upper end of the bracket a. At its lower end a supporting-rod f is provided with a head f through which and the lugs 12 of the tank I; a pin or bolt f is passed to mount the said tank with freedom for a limited oscillation in a vertical plane. The downward movement of the tank I) is normally limited by a stop projection f from the head f which engages its inclined under side, as shown in Figs. 1 and 2. In its under inclined side of the tank, near the lower portion thereof, is a feed passage or perforation 9, through which the ink is fed outward, as hereinafter described. To vary the feed, a cut-off, preferably in the form of a segment 70, pivoted to the tank 19 at 7c, is provided. This cut-off It has a perforation 70 which is adapted to register with the perforation g, as illustrated in Fig. 3. By means of this cut-ofi g the size of the ink-feed passage g may be varied or thesaid passage g may be entirely closed.

To produce a forced feed of the ink through the perforations g and 70 an ejector in the form of an arm on is secured at its upper end, preferably to the supporting-rod f, and with its lower end, which is in the form of a transversely-extended plate m',in line with the said perforations g and 70 The normal adjustment of the parts is as follows: The weight b on the cover I), as Well as the weight of the tank I) and its contents, holds the said tank against the stop f, as shown in the drawings, in which position considerable space is left between the perforation 9 and the head m of the ejector m. The

tank as an entirety is advisably set on that side of the rotary disk or plate 2 which is moving upward, and the lower edge thereof is so adjusted with reference to the movements of the inking-rollers that the upper roller 7 when moved to its extreme upward position (indicated by dotted lines in Fig. 2) will engage the pivoted ink-tank and force the lower inclined wall thereof rearward against the head m of the ejector m.

Printers ink is, as is well known, a heavy, pasty fluid which will not run through a small perforation unless subjected to considerable force. Hence it follows that under the action above described ink will flow or work between the ejector-head m and the perforation 9, but will not normally escape from the tank through the feed-perforation g. When, however, the tank is forced rearward by the upward movement of the rollers 7 as already described, the ejector-head m will positively force the ink between it and the perforation g outward through the said perforation g and the perforation k of the cutofi 7c, and the ink thus ejected will be carried by the upper roller 7 onto the pad or disk 2, and from thence will be distributed over the surfaces of the several rolls. By this positive feeding device determined quantities of ink are at each movement of the inking-rollers deposited on the pad or distributing-disk 2, and bymeans of the so-called cut-ofl the rate of feed may be varied at will. Hence an even flow of the ink in desired quantities is made possible.

It will of course be understood that the device above described is capable of many modifications within the scope of my invention.

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

1. In aprinting-press,the combination with a reciprocating inking-roller, of a pivoted inktank having a feed-passage, and a relativelyfixed ejector having a head within said tank cooperating with said feed-passage, which pivoted tank is oscillated by said inkingroller, substantially as described.

2. In a printing-press,the combination with an inking pad or plate and a traveling inking-roller, of a segmental gravity-held inktank pivotally mounted and provided witha feed-passage, and an ejector secured to a relatively-fixed support and provided with a head cooperating with said feed-passage within said tank, said tank receiving its oscillations from the said feed-roller at the limit of its upward movement, substantially as described.

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

' JAMES W. EGGLESTON.

Witnesses:

ANNE S. READ, F. D. MERCHANT.

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