US115391A - Improvement in printing-presses - Google Patents

Description

WILLIAM .PL RITQYE, `or PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN PRIN'fl'lNG-PRESSES.

` Specification `forming part of Letters Patent llo. 1l5,391, dated May 30, 1871.

` To all 'whom it may concern:

Be it known that I,WILLIAM H. R. Torn,

` of the city and county ofPhiladelphia and State of Pennsylvania, `have invented a new,

` and useful Improvement in Printing-Presses;

" andII do hereby declare that the following is a full, "clear, and` eiractdescription of the Acon- .i struction and operation of the same,reference being had tothe accompanying drawing and to the letters of reference marked thereon.

The object of my invention is to construct a press that will print in one or an indefinite number of colors at onerevolution of the machine, and will be capable 'of printing one or 1 y more distinct orl separate jobs in the same or different colors. Figure lis an end elevation of my improvement in printingpresses. Fig. 2 is a planview of "a portion of theV same. Fig. 3 is a trans- H l verse section through a portion ofthe press.

To enable those` skilled in the art to make and use my invention, I will now proceed to dey scribe its construction and operation.

The standard-frames A and Al are made in the shape as shown in Fig. Lof the' drawing,

` or of any other suitable form,"and are held at y the proper distance apart by means of therods B B, which are secured to and brace them in a vertical position. Two spur-wheels, Gand O,"are mounted on a shaft,D, with appropri- 2 ate bearings formed in the central portion of i the frames. Thefsaidwheels `are connected at a certain distance apart byjhorizontal rods E E, the ends of which Aare secured to the outer rim 'of the wheels. Placed at the lower part of the frames is ashaft, F, on which are se- "cured two pinions, Gr and G', which gear with and` transmit a rotary motion to the spurwheels when power-is applied to the pulley H. Between the wheels C and C', and fixed to the arms I Iof the same, is a platen-drum, J, a certain portion `of the circumference of which is 4brought alternately in contact with (while being carried around with the wheels) a flat sur.- H face formed on the bed-cylinders K, K1, and K2. A portion of theperiphery of each of the bed-cylinders K, K1, and K2`is made iiat, and

l" is adapted to receive the form of types: 'and termined according to the circle described by the outer periphery of the drum J. A rotary motion is also communicated to these cylinders through the .gear-wheels L L L, which tributing surface of each cylinder is enameled with porcelain, so as to protect the iiner colors ,fromA the injurious effects of oxidation of iron or other metallic surfaces. The platen-drum J is provided with one set of nippers, O, which consist of a horizontal shaft, a, on which the fingers or nippers b b are secured, these being operated from a cam, d, (secured to the outer end of the shaft,) which is brought alternately in contact with the projections e and e', and caused to make a partial rotation in 'one direc! tion, so as to raise the nippers to receive the sheet to be printed, and in an opposite direction to close them. A spring, s, attached to the inside of one of the spur-wheels and resting on a projection onV the shaft, holds the nippers with a rm gripe down on the sheet.

The motion of the-platen-drum J carrying the sheet or-material to be printed, and the motion of the bed-cylinders carrying the types "on a flat surface, being rotary, admit of printing with one set of nippers three'distinct colors on the same surface at one revolution of the press, inks of the colors desired being supplied to the types from the'distributing surface of each cylinder by the rollers M M M.

The ink-rollers are so arranged that any number of them can be used to each bed-cylinder, and their own gravity causes them to adhere closely to the form and to the distributing surface of the cylinders while passing over them, thus effectually laying and rolling the ink on the surface to be printed from. The various .parts of the machine are directly under the eye of the operator, and easy` access can be had to any particular part while the press is stationaryor in motion, and the speed of it can be regulated to feed fast or slow, as desired. The bed-cylinders for the reception of the types may consist of one or an indefinite number, so as to produce, at one revolution of the press, a printed surface of the same or of various colors.

One or more distinct or separate jobs can be printed at the same time by arranging the types on different parts of the at surface of the bed-cylinders. rIhe flat surface on the bedcylinders represents the faces of the types, a recess or depression being formed in each cylinder for the reception of the type, as shown in Fig. 3 of the drawing.

Having thus described my invention, its construction and operation, what I claim, and desire to secure by Letters Patent, is

witnesses.

WILLIAM H. R. TOYE.

Witnesses:

ISAAC R. OAKFORD, W. WooDoocK.

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