US846432A - Printing-press. - Google Patents

Description

No. 846.432.V PATENTED MAR. 5, 1907.

w. H. SMILEY. PRINTING PRESS.

UNITED sTATEs PATENT oEEIoE.

WILLIAM HATCH SMILEY, OF NILES, OHIO.

PRINTING-PRESS.

atented March 5, 1907.

Original application filed March 7, 1905, Serial No. 248,821. Divided and this application filed December 5, 1906. Serial Be it known that I, WILLIAM HATCH SMILEY, of Niles, in the county of Trumbull and State of Ohio, have invented certain. new and useful Improvements in Printing- Presses, 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.

The primary object of this inventionis to insure a firm imprint of the type and to secure great force on the impression for the purpose of embossing and to compensate for the delays between the imprints while stock is being positioned and ink is being applied to the type.

The invention will be hereinafter fully set forth, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in perspective of a portion of a press equipped with my improvements. Fig. 2 is a side view thereof with parts omitted. Fig. 3 is a central longitudinal sectional view. Fig. 4 is a view in perspective of the gearing. Fig. 5 is a detached view of the platen and its support.

This invention is primarily designed for use in connection with a bed-and-platen press of the character shown by Letters Patent of the United States No. 778,338, issued to me December 7, 1904, a further exemplification of which is embodied in my pending application, Serial No. 248,821, filed March 7, 1905. In the press to' which I refer the stock is fed over a stationary platen by endless conveyers, the travel whereof is periodically arrested while the stock is inposition on the platen to receive the imprint or embossing, after the completion of which the stock resumesits travel with the conveyer, from which it is later automatically released. Inasmuch as the means for feeding and positioning the stock has no necessary correlation to the subject-matter of the present invention, I have neither shown nor described the conveyer nor any of its adjuncts.

Referring to the drawings', 1 designates a stationary frame, and 2 a carrier movable back and forth on inclined guideways 3 of frame 1. The sides of the carrier are in line with the sides of the frame, and at its lower is movable toward and away from the stationary platen 5. The platen consists of a solid bed and a removable frame of rectangular formation, which frame rests upon stops 6 and is secured at its upper end by pivoted hooks 7, engaging posts 8 thereof. The frame is much lighter in weight than the bed and is designed to bear evenly against the latter at every point. By this means I am enabled to readily remove a portion of the platenfor convenience in the preparation of make ready. To replace the frame, it is only necessary to position it on stops 6 and to throw hooks 7 into rengagement with posts 8.

The sides of the type-bed carrier 2 at their upper ends are formed with bearings for a cross-shaft 9, which shaft at its ends has crank-pins 10, whereon are fitted the ends of links 12. These links at their lower forward ends engage cams mounted on shaft 13, having its bearings in frame 1. Through this connection the type-bed is given its reciprocation by the revolution of its shaft 9, and in each downward movement the type-bed will be brought sufficiently close to the platen to secure a firm imprint. An ordinary throwoff lever 14 is shown as connected to one of the cams on shaft 13. (See Fig. 1.)

The reciprocation of the type-bed carrier is effected by an elliptical gear-wheel 15, keyed on shaft 9 and meshing with an eccentric gear-pinion 16, whose short shaft 17is supported by cranked arms 18, (see Fig. 4,) secured at their upper ends to shaft 9 and at their lower ends loosely mounted on a main operating-shaft 19, which latter carries the ffy-wheel 20. (Shown in dotted lines, Fig. 2.) On the short shaft 17 is a gear-wheel 21, concentric to such shaft and which meshes with a pinion 22, fast on f shaft 19. The revolution of shaft 19 is communicated through pinion 22 to gear-wheel 21, and thus to shaft 17 and through the eccentric gearpinion 16 and elliptical gear-wheel 15 to shaftQ of the type-bed carrier.

By means of the elliptical and eccentric gears I am enabled to insure a firm imprint of the type and secure great force on the impression, and thereby squarely emboss the type on the stock, obtaining also dwells in the movements of the type-bed carrier not only atthe time of the imprint, but also when the forward end it carries the type-bed 4, which i type-bed is at the limit of its outward move- ICO ment, during which the inlring of the type is effected and fresh stock is positioned on the platen. By means of this construction an accelerated motion is obtained between the extremes of movement, thereby enabling me to secure rapid operation of the press, the time consumed in the dwells being more than compensated by the rapidity of motion imparted to the type-bed. I have neither shown nor described the means for actuating the ink-fountain or'for inling the type, since it is manifest that any suitable arrangement may be employed for this purpose.

Although my present invention is primarily designed foi use in connection with printingpresses of the type embodied in my beforenoted patent and application for patent, yet it is manifest that its use is not restricted, that it is applicable to any press wherein as between the platen and the type-bed in a printing-press an accelerated and differential motion is desired.

I claim as my invention* 1. A printing-press having a platen and a type-bed, one being movable relatively to the other, and means for operating the movable member comprising an elliptical gear and an eccentric gear intermeshing with` each other for imparting to the movable member a dwell at the extremes of travel and for accelerating its speedbetween such dwells.

2. In a printing-press having a movable bed, means for reciprocating the latter and imparting increased force to the imprints, comprising an elliptical gear-wheel and an eccentric gear-wheel intermeshing with each other.

3. A printing-press having a stationary platen, a movable type-carrying bed, and means for reciprocating the latter comprising shaft, apower-shaft, and an eccentricallymounted gear-wheel driven thereby and meshing with said elliptical gear.

5. A printing-press having a stationary frame, a type-bed carrier slidably mounted on said frame, a driven shaft mounted on p said carrier and having an elliptical gear, means connecting said shaft and the frame for imparting a reciprocatory movement to the carrier by the revolution of its shaft, a power-shaft, and an eccentrically-mounted gear-wheel driven thereby an d meshing with said elliptical gear.

6. A printingepress having a stationary' frame, a type-bed carrier slidably mounted on said frame, a driven shaft mounted .on said. carrier and having crank-pins at its ends, links connected to said crank-pins and to said frame, an elliptical gear on said shaft, a power-shaft, an eccentrically-mounted gear-wheel meshing with said elliptical gear, a short shaft for such eccentric gear, a gearwheel on said short shaft, and a pinion on said power-shaft meshing with said latter gear-wheel.

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

WILLIAM HATCH SMILEY.

Iitnesses ROBERT Weiss, MARY E. MOLEY.

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