US139360A - Improvement in rotary printing-presses - Google Patents

Description

s. H. BINGHAM. Rotary Printing-Presses.

-ADELPHIA, PENNSYLVANIA.

4 Specication forming part of Letters Patent No.

' January To all whom it may concern:

Beit knownthat I, SAMUEL H. BINS-EAM, of Philadelphia, in the county of Philadelphia and State of' Pennsylvania, have invented an Improved Printing-Press, of which the following is a specification:

The drawing represents a vertical transverse section of my improved printing-press.

The object of lthis invention is to so construct a printing-press that the exactly opposite sides of a sheet, or the outer sides of two sheets can be simultaneously printed 5 and `the invention consistswin constructing a press with two printing-cylindegs, which are in line. l y with each other and between which the sheet passes, so that each cylinder will apply its imprint to the side of the sheet with which it I` Vis in contact, whlethe same is passing through l the press.

The invention is applicable to all such presses not containing type, whose cylinders y are either lithographie stones, or covered with prepared zinc or `other metallic impressionplates.

In the accompanying drawing, the letter A represents the upper printing-cylinder, and B the lower,l They are hung parallel to each other in a frame, C, of suitable kind, and are both, or either one of them, adjustable in their bearings to be brought sufficiently close together to apply the requisite degree of press- UNITED STATES ure to the sheet passing between them. p

PATENT O FTFIGE. A'

SAMUEL H. BIN GHAM, OF PHILADELPHIA, PENNSYLVANIA, `ASSIGNOR TO 1HIMSELF, EDWARD B. BIN GHAM, OF NEWARK, NEW JERSEY, GEO. W.

VAN ALLEN, OF NEW YORK CITY, AND WILLIAM N.

STONE, oF PHIL- IMPROVEMENT IN ROTARY PRINTING-PRESSES.

139,360, dated May 27, 1873 application filed i 30, 1873.

These rollers are represented as covered with printing-plates a a, but may be made of stone or other material not containing type. Suitable inking-rollers b are used in connection with these cylinders for the purpose of applying ink to `their surfaces, and also suitable damping or wiping rollers d. A sheet passing between the two rollers A B will, it is evident, be printed on both sides; and the two cylindersmay be prepared to produce different impressions on the opposite sides of the sheet, or also the saine impression, as may be desired. And whenever it is not desired to print two sides of one sheet, I may pass two sheets between the two rollers A B, in which case the upper cylinder will print the upper face of the upper sheet, `and the lower cylinder the lower face of the lower sheet.

(Naim.`

The combination with each other of two lithographie or chemically-prepared printingcylinders A B, which are so arranged in one frame as to constitute pressure-cylinders for each other, for printing with their smooth and unengraved sufaces different or likelmatter upon opposite sides of. one or more sheets, substantially as specified.

S. H. BINGHAM. Witnesses: l

D. MIsELL, A. V. BRIEsEN.

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