US407034A - John r - Google Patents

Description

(No Model.)

J. R. RANKIN.

PRINTING MAGHINE.

No. ,407,034. Patented July 16, 1889 l 7/ 77 Q J J 7 1 13.3 7 i i HE 5 I 6 1' 8 s 70 u M i: B 0

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N. PETERS. Plmlo-Lnhographm. Washington. a a

UNITED STATES PATENT ()EEICE.

JOHN R. RANKIN, OF INDIANAPOLIS, INDIANA.

PRINTING- MACHINE.

SPECIFICATION forming part of Letters Patent N0. 407,034, dated July 16, 1889.

Application filed May 5, 1888. Serial No. 272,879. (No model.)

To all whom it may concern.-

Be it known that I, JOHN R. RANKIN, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Improvement in Printing-Nachines, of which the following is a specification.

My invention relates to an in'iprovementin that class of printing-presses in which the types are set in flat forms in a plane-surfaced substantially rectangular type-carrier, which is arranged to be revolved in contact with a convex platen, and in which impressions are made upon a continuous web of paper.

The object of my improvement is to provide a press of this class which willbe simple in construction, may be operated by hand more rapidly than the ordinary platen-press, and which will cost less than the ordinary rotary press, all as hereinafter fully described.

The accompanying drawings illustrate my invention.

Figure 1 is a side elevation. Fig. 2 is a plan. Fig. 3 is a transverse vertical section at line a, Fig. 1.

A is a suitable bedframe, having about midway of its length a raised convex platen B, which extends transversely across the bedframe.

0 is a roller mounted in open bearings on one end of the bed-frame and carrying a continuous web of paper D, which passes under suitable guide-rollers c, f, and g to a roller (I, mounted on the opposite end of the bedframe, the arrangement being such that the web of paper is drawn smoothly over the convex surface of the platen.

II is the type-carrier,havingplanc surfaces 3, 3, and i. Surface 1 of the type-carrier is of the same width as the convex surface of the platen, and is recessed to receive the t-ppes '1', leaving, however, blank surfaces j j at each end of the carrier, which blank surfaces rest upon corresponding slightly-raised bearing-surfaces 7.; 7. at each end of the platen when the type-carrier is revolved, thus preventing the crushing of the types. The surfaces 2, 3, and at of the type-carrier are simply flat surfaces, which serve as ink-carriers, the ink being distributed on the surfaces by the ink-roll Z, and from thence to the types by means of the ink-rolls m and n, as hereinafter explained. For the purpose of controlling the rolling movement of the type-carrier, so that the type-surface 1 shall always register properly with the platen, I secure to the bed-frame at each end of the platen curved rack-bars o o, and to the bed-frame on each side of the platen at each end,in line with the bearing-surfaces 707. I secure the curved rack-bars p p and r r. The rack-barso 0 intermesh with straight rack-bars s s, secured to the type-carrier at each end of and parallel to surface 1, and the rack-bars p and r intermesh, respectively, with corresponding straight rack-bars t and u a, secured, respectively, to the surfaces 2 and 1 of the type-carrier. The arrangement is such that the type-carrier, when in the position shown in Fig. 1, rests 011 the rack-bars r r, surfaceet being downward and the type-surface 1 being toward the left. As the type-carrier is rotated toward the left by means of the crank E, which is secured to the shaftF, which passes lengthwise through the carrier, the angles a, formed by surfaces 1 and 4, enter and rest in the angles n, formed by the bearing-surfaces 7tand the ends of rack-bars 0*, thus holding the type-carrier exactly in register with the platen while rack-bars a are passing out of engagement with rack-bars r and rack-bars s are passing into engagement with rack-bars 0. As the type-carrier is further rotated, surface 1, carrying the types, is brought into contact with the paper, which rests on the platen, the impression is made, and the type-carrier is turned until it rests on rack-bars p, with surface 2 downward and surface 1 toward the right. The web of paper is now rolled on roller cl until the impression formed registers with a pointer 20, secured to the bed-frame, as shown in Fig. 2. The type-carrier is then turned toward the right to its former position, thus making a second impression. In turning toward the right the angle formed by surfaces 1 and 2 enters the angle 13 and insures the proper registration of the type-surfaces of the carrier with the platen.

The inking of the type may be accomplished by hand ink-rollers; but for the purpose of automatically inking them I mount on opposite ends of the shaft F a pair of frames, each consisting of a horizontal bar 5 and three vertical standards 7, 8, and 9, the shaft passing through the horizontal bars. Said frames are arranged to rest upon and to slide along a pair of guidebars 10 10, which are secured to standards projecting from the bed-frame. The ink-rolls m and n are mounted at each end in the lower ends of bars 11 and 12,which are pivoted at their upper ends to the upper ends of the standards 7 and 8, so that said ink-rolls m and n rest against the sides of the typecarrier as it revolves.

The ink-rolll is mounted in slotted hearings in the standards 0 and rests on the top of the typecarrier. Ink being spread on one of the fiat surfaces of the type-carrier is taken up by the rolls, and as the carrier revolves and-moves forward and back the frames which support the ink-rolls slide along the guide-bars, and the ink is distributed in an obvious manner.

I claim as my invention- 1. In a printing-press, the combination of the following elements, namely: a bed-frame, a convex platen secured to said bed-frame, and a type-carrier having a recessed plane surface in which types are set, all arranged to co-operate substantially as specified,whereby an impression from the types is obtained by rolling the type-carrier over the platen and along the bed-frame, as set forth.

2. In a printing-press, the bed-frame, the convex platen secured to said bed-frame, the type-carrier having a recessed plane surface in which types are set, the curved rack-bars secured to the bed-frame opposite the ends of the platen, the straight rack-bars secured to the type-carrier opposite the ends of the typesurface and arranged to intermesh with said curved rack-bars, and supports for the typecarrier arranged on each side of the platen to receive and support the carrier when off the platen, all combined and arranged to co-operate substantially as and for the purpose specified.

3. In a printing-press, the combination,with the bed-frame, the convex platen secured the rolling pressure of the type-carrier, as set forth.

4. In a printing-press, the combination of the bed-frame, the convex platen secured to the bed-frame, the curved rack-bars secured to the frame opposite the ends of the platen, the plane-surfaced rectangular type-carrier arranged to be rolled over and in contact with the platen, the rack-bars secured to the typecarrier opposite the type-surface and arranged to engage said curved rack-bars, the rack-bars secured to the bed-frame 011 each side of the platen at opposite ends and forming interior angles therewith, and forming also supports for the type-carrier when off the platen, and the rack-bars secured to opposite sides of the type-carrier and arranged to engage said rackbars, all arranged to co-operate substantially as and for the purpose specified.

5. In a printing-press of the class described, the combination, with the bed-frame and the type-carrier arranged to be rolled thereon, of the guide-bars secured to opposite sides of the bed-frame above and parallel therewith, a shaft projecting from opposite ends of the type-carrier, two frames mounted on said shaft at opposite ends of the type-carrier resting on said bars and carrying ink-rolls which rest on the surface of the type-carrier,whereby the ink-rolls are carried with the type-carrier along the bed-frame and in contact with the surfaces of the type-carrier, substantially as and for the purpose specified.

J OIIN R. RANKIN.

Vitnesses:

II. P. H001), V. M. 11001).

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