US88835A - Improvement in printing-presses - Google Patents

Description

Sti-niiet tatet @mail @film wm/123 me HENRY BETTS, OF NORWALK, CONNECTICUT, ASSIGNOR TO HIM- SELF AND HART Z. NORTON, OF SAME PLACE.

Letters Patent No. 88,835, dated April 13,1869; anteclated April 3, 1869.

IMPROVEMENT IN PRIN TIN G-PRESSES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it lma/y concern Be it known that I, HENRY BE'r'rs, of Norwalk, in the county of Fairfield, and State of Connecticut, have invented a new and improved Printing-Press; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make 'andV use the same, reference being had to the accompanying drawings, forming part of this specification.

' This invention relates to a new and improved plinting-press, of that class which is provided with a rotary printing-cylinder, and prints from a continuous roll.

The invention consists in a peculiar construction land arrangement of the parts, as hereinafter fully shown and described, whereby duplicate forms may be used on one and the same cylinder, and each form properly inked, so that perfect 'work will be produced.

In the accompanying sheets of drawings- Figure 1, Sheet N o. 1, represents an elevation of my invention;

Figure 2, Sheet N o. 2, a side sectional view of the same;

Figure 3, a side view of the part pertaining to the same' Figure 4, a front view of iig. 3.

Similar letters of reference indicate corresponding parts.

A represents a'framing, having at each side -a circular xed portion, B, at the centres of which are the bearings for Athe shaft C of a printing-cylinder, D.

E E represent the rods, which are fitted radially, one in each circular portionB of th`e`frame, and on each rod E, near its lower end, there is secured, by a set-screw, a, a head, F.

These heads F are formed with guides b, in which the vbearings c of the shaft d of a pressure-roller, G, are fitted, said hearings having spiral springs e pressing upon them, which cause the roller G to press the paper properly upon the form, or cylinder D.

On the upper parts of the rods E E there are secured, by set-screws f, cross-bars H, which extend about equal distances'. from opposite sides of the rods, a roller, I, being fitted between the bars at oneend, and a roller, J, fitted between them at the other end. Y

The paper to be printed is wound upon the roller I in a continuous roll, and extends down underneath the pressure-roller G, and thence up to roller J, on which it is woundas printed, K being a guideroller, against which the paper bears while being moved.

, The roller J is rotated by a belt, g, from a pulley, b? at one endof the shaft ofthe cylinder D.

By this arrangement the paper is printed from a continuous roll, the operation being -a continuous one.

The pressurerollerG presses the paper properly upon the form on cylinder D,s0 as to insure good impressions being made, and said pressure-roller is ro tated by gearing LX from-cylinder D.

The form on cylinder D is inked by the following means:

L L are two rods, which are secured radially in the circular xed portions B B'of the frame A, and have the bearings h attached to them of a'series of ink-rollers, i i fl M N jj, and an ink-reservoir, vO, the latter resting upon the rollers t' i. (See, more particularly, 2.)

'gThe ink-reservoir O is a metal cylinder, perforated with small holes, and is nearly equal in diameter to the rollers t' fi.

This reservoir is covered with hair-cloth or other suitable material, which will admit of the requisite discharge of ink Vupon the rollers i l,which, in connection with roller t, distribute it upon roller M, the latter conveying it to roller N, and N conveying it to the rollers j j, which ink the form as the cylinder D rotates.

These rollers, as well as the ink-reservoir O, are all rotated by a b'elt gx from pulley bx.

The mechanism above described may be duplicate, and this constitutes thegreat advantage of the'inyention.

The whole exterior surface of the cylinder D may be covered with type forms, an inking-device and paper-rollers being employed for each form, and these 'devices may be very readily applied, as the necessary rods E I for their support may be inserted in the circular xed portions B, without any trouble or diiiculty I whatever. l

There is no single-cylinder printing-press arranged with inking-devices and paper-roller supports, in the manner herein shown and described, and none which will admit of being so compactly built and in such a simple manner.'

To illustrate this, suppose the cylinder D to be six feet in diameter, six forms, thirty-six by forty-eight inches, may be seated or secured on its periphery, and this4 cylinder, if run at the rate of twenty revolutions per minute, would throw oi seven thousand two hun dred impressions per hour.

I do not claim, broadly, asingle-cylinder printingpress, nor do I claim the printing of paper from a continuous roll; but,

Having thus described my invention,

What Ido claim as new, and desire to secure by Letters Patent, is-.

1. The application of a series of forms to the roller D, and a seriers of stands E, carrying the paper and pressure-rollers, whereby impressions of different inatter are taken from one cylinder in regular succession and delivered to separate stands, as herein described, for the purpose specified.

2. rlhe heads F, adjustable upon the radial rods E, and provided with the guides b, having spring bearings c for the pressure-roller G, as herein shown and described.

3. The described arrangement of the radial shafts E, yielding pressure-roller G, arms H, paper-rollers I J, and guide-roller K, with relation to the form-cylinder D and perforated portion B, as herein described for the purpose specied.

HENRY BETTS.-

Witnesses:

JOSEPH F. FOOTE, IsAAo H. CAMPBELL.

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