US464485A - Printing-press - Google Patents

Description

(No Model.)

H. SWAIN.

- PRINTING PRESS.

No. 464,485. Patented Dec. 1, 1891.

fizz/enter:

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UNITED STATES PATENT OFFICE.

HADIVEN SIVAIN, OF SAN FRANCISCO, CALIFORNIA.

PRINTING-PRESS.

SPECIFICATION formingpart of Letters Patent No. 464,485, dated December 1, 1891.

Application filed October 16, 1889- Serial No. 327,253. (No model.)

jobbing presses, and has for its object improvement in the construction of the inking attachments to the bed-frame thereof.

, The present application embraces features consisting of .a throw-off, an oscillating bed, and an ink disk, fountain, and distributing roller, shown and claimed in a previous application filed by me the th day of February, 1888, Serial No. 263,561, and hence no claim is made to such features in the present case.

It consists of the several novel features of construction and new combinations of parts hereinafter fully described, and pointed out in the claims.

In the drawings, Figure 1 is a side View, Fig. 2 a front View, and .Fig. 4 a top or plan view, of, my improved bracket for the support of the ink-disk and its pawl-lever, the inkfountain, and the chase-hook and its operating devices. Fig. 3 is a side view of said pawl-lever; and Fig. 5 is a side view of aportion of the bed-frame of a press of the class referred to, with the ink-disk, the fountain, and the inking-rollers in position.

The bed-frame A, constructed in the usual manner to receive the form of types on its front face, is provided on its rear side, near the top, with a shelf A, to which is bolted the bracket receiving and supporting the parts hereinbefore mentioned. This bracket a has a base a, adapted to fit upon the shelf'on the bed-frame. From this base the body of the bracket rises and extends backward in an inclined direction, its upper part branching into two divergent'arms Z), terminating in two parallel bearings 19, Fig. 4, which are slotted longitudinally. Intermediate to these bearings and the base there is formed in the bracket a circular perforation e, and in a rearwardl'y-extending lug e is a smaller circular perforation t. In the bracket at the base is formed a recess opening outward, and

hook c, pivoted on a pin Z, and in the secondrecess lies the wedge h, working under the tail of the hook to force its front end down to clamp the chase to the bed. From one side of the brace of the bracket extends an arm m, having a lug 0 on its end, perforated for the passage of a hand-rod 25, connected to the wedge h. Between the lug o and the wedge is placed a spiral spring, acting to force the wedge inward under the tail of the hook. In the circular bearing e in the bracket is mounted the spindle of the ink table or disk B. On the lower end of this spindle is secured an annular ratchet, the teeth of which are engaged by the weighted pawl pivoted to the lever g. This lever has a bearing corresponding to the perforation e' in the lug c on the bracket whereon the lever is pivoted. The long arm of the lever is connected to or engaged by any convenient part of the press,

so as to actuate the pawl and give intermitting rotary motion to the ink-disk.

The ink-fountain j has on its under side lugs n, through perforations in which and the slots in the bearings I) pass bolts by which the fountain is secured in position. The fountain is thus rendered adjustable back and forth in the slots and also pivotally on the bolts, so that its position may be very accurately and very readily regulated.

The vibrating inking-roller frame 0 is of the usual construction, having at the ends of its spring-actuated sliding rods the saddles engaging the journals of the form-inking rollers r. In the upper one of these saddles k I have also mounted the transfer and distributing roller cl, the office of which is to take ink from the roller 3 in the fountain and distribute it upon the disk 13. In order that this duty may be efficiently performed without requiring the saddles to travel too far back, I have lengthened the rear arms of the upper saddles is, so that proper contact of rollers d and s is secured with a minimum backward movement of the roller-frame and its saddles and Without extreme tension on its spring-rods.

Having thus described my invention, what I desire to secure by Letters Patent is 1. For a printing-press, the supportingbracket having bearings for the ink table or disk and for the pawl-lever operating the same and for the ink-fountain above the disk, substantially as described.

2. For a printing-presss, the supporting bracket having bearin gs for the ink-fountain, for the ink table or disk, for the pawl-lever operating the latter, and for the chase-hook and its operating devices, substantially as described.

3. For a printing-press, the bracket having in its base recesses for the chase-hook and its wedge, at its upper end parallel bearings for i the ink-fountain, and intermediate bearings for the spindle of the ink table or disk and its pawl-lever, substantially as described.

4. In a printing-press, the combination, 1 with the bed-frame thereof having a shelf on its rear side, ofthe bracket having a base secured to said shelf and supporting the inkfountain and the ink table or disk and its pawl-lever, substantially as described.

5. In a printing-press, the combination, With the bracket having parallel slotted bearings, of the ink-fountain having perforated lugs whereby the fountain is secured to said bearings and is adjustable back and forth and pivotally, substantially as described.

6. In a printing-press, the inclined ink table or disk and the fountain mounted above I it, combined with the vibrating roller-frame, the form-inking rollers, and the saddles, the upper one of which has rearwardly-lengtheued arms bearing a transfer and distributing roller, substantially as described.

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

I IIADvVEN SIVAIN.

\Vitnesses:

C. E. PERKINS,

G. M. 5mm.

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