US169532A

US169532A - Improvement in oscillating printing-presses

Info

Publication number: US169532A
Authority: US
Publication date: 1875-11-02
Anticipated expiration: 1892-11-02

Description

W. C. EVANS.

OSCILLATING PRINTING-PRESS.

No. 169,53Z. Patenta& Nov. 2,1875.

UNITED STATES PATENT OFFICE WILLIAM C. EVANS, OF PHILADELPHIA, PENNSYLVANIA IMPROVEMENT IN OSCILLATING PRlNTlNG-PRESSES.

Speeification forming part of Letters Patent No. 39,532, dated November 2, 1875; application filed July 14, 1875.

To all whom it moyconcern:

Be it known that I, WILLIAM G. EvANs, of Philadelphia, Pennsylvania, have invented certain Improvements in Printing Presses, of

which the following is a specification:

My invention relates to that class of printin g-presses in which a vertical or inclined bed is combined with a hinged platen; and the object of my invention is Simplicity and economy of Construction-an object attained in the :manner which I Will now proceed to describe, reference being had to the accompanying drawing, in which- Figure lis a side view ot' a printing-press with my improvements Fig. 2, a vertical seotion, and Fig. 3 a perspective view of parts of'the press. 4

A represents one of the two opposite side frames of the press; B, the bed, and D the platen, the latter being Secured to or formin g part of arms M, which are hinged at m to the frame of the press. To suitable bearings in the opposite frames is adapted the shaft b, and to each end of this shaft is Secured an arm, e,'each arm being connected by a rod, f, to a pin, n, on the platen, to which the desired vibrating motion can be imparted either by the vibration or rotation of the said shaft b. Two arms, F, carrying the inking-rollers, are hung loosely to the shaft b, each arm being connected by a rod, d, to apin, n, of the platen, so that the latter, when the press is in opera` tion. imparts the desired vibratin g movement to the said roller-carrying arms.

It will be evident to those familiar with the constructiou of printing-presses of the class to which my invention relates that, by making the shaft b available as a medium for carrying the roller-arms F, Simplicity and econinvention has to be operated by hand the shaft b may be provided with a suitable lever and handle, by manipulating which a vibrating motion may be imparted to the said shaft; but for power-presses I use a supplementary driving-shaft, i, carrying a pinion, h, which gears into a wheel, p, on the shaft b.

I do not de'sire to claim, broadly, a printingpress in which a hinged platen is connected to cranks on the driving-shat't, and also to an inking-frame hung to the said shaft; but

I claim as my invention- The combination of the shaft b, having cranks e, connected to a pin, n, on the hinged platen D, with theinking-frame F, hung loosely to the shaft d, and connected to the said pin n of the hinged platen, all as set forth.

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

W. U. EVANS.

Witnesses:

EDWARD H. ECKFELDT, HARRY SMITH.