US14907A - Printing-machine - Google Patents

Description

'2 sheets-sheet 1. J. H. COOPER. PRINTING IVIAGHUTL.A

N0. 14,907. Patented May 20,1856.

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UNITEDv STATES PATENT OFFICEG JOHN H'. COOPER, OF PHILADELPHIA; PENNSYLVANIA.

PRINTING-MACHINE.

Specification forming part of Letters Patent No'. [4,907, dated Mayf, 185:6.

To @ZZv whom it may concern:

Be it known that I, J oHN H. CooPER,of the city and county of Philadelphia and State of Pennsylvania, have inventedcertain new and usefnl- Improvements in Printing-Machines, andl do hereby declare' the following to be a full, clear, and exact description of the same,

reference being had to the accompanying drawings, in which- Figurel 1 represents a` perspective View. Fig. 2 represents a verticalsection; and Fig. 3 represents a top plan, with the top plate of Figl removed to show theparts underlying it.

Similar letters,where they occur in the sev.- eral figures, denote like parts in all.

To enable others skilled in the art to make and use my invention, I will proceed to describe the same with reference to the drawings. A represents a base upon which the ma-v chine is supported. The lower ring, B, is immovable, being attached to and forming apart of the base A. On column C, attached to the base, is supported a disk, D, upony the upper surface of which are arranged in a circular form the letters of the alphabet, the iirst nine numerals, and a zero-mark, as also such other punctuation characters as may be required in writing or printing. Each one of the characters upon the disk D has. in close proximity to it, so as to be readily seen by the operator, a conical countersink, a, into which aconical point, b, attached to a shaft, E, is pressed to designate the letter or other character that is to be printed. The shaft E has an upper bearing in the disk D and a lower bearing in the base A, so thatit may move vertically up and down through these bearings, andthe lower endvof said shaft is stepped in the lever F, which may be held up to said shaft by a spring underneath it.

On top of the shaft E is a crank,G,by which it is turned, and to a projecting portion, c, of said crank is-connected a spring-arm,d,which vreturns back underneath the crank and supports the conical point b. The object of the spring-arm d is to allow the shaft to be pressed down farther than the conical point and countersink would admit of if said arm were rigid.

Underneath'the diskD,and so connected with the shaft E as to freely turn with said shaft,is a

` type-wheel, H, furnished with a series of characters corresponding with those on the disk D, and so arranged in relation to them as that the frame for carryingthe paper.

whatever character the conical point indicates when pressed into its representative counter sink shall be brought intoa line of which the paper to be printed upon is the tangentwas, for instance, the point b is represented in Fig. 1 as in place tov represent aperiod, Now the period-type on the type-wheel H is on the opposite side of the circle from where 'its representative is placed on the disk D, and thus, whenever thepoint b may be pressed into a countersink which is the representativeof one of the characters, that character shall be in the exact position to impart its impress upon the paper which moves in a line tangential to the typewheel. l

A long slot, l, is cut through the base A for the carriage, which carries the paper to be printed upon, to traverse through. VUnderneath thisslot is hung a rock-shal't, J. to one end of which is attached the lever E, so that every time the lever F is vibrated o'n its fulcra, by the pressing down of the shaft E, a rocking motion will be imparted to the rockshaft J.

rlwo arms, K K, connected at their tops by a cross-piece, L, and freely sliding on the rockshaft J, and supported by a brace, M, form Within this frame is hung the two rollers N O, be tween'which the paper to be printed upon is first passed,- and thence said paper, as indi cated by the red line, Fig. 2, passes over a guide, e,- thence in a perpendicular (or nearly so) line down between a small-roll, f, and plate g,.to hold it properly stretched to be printed upon,in a manner that will presently be described. The top one of the pair of rolls,N,

has upon its journals h, which project beyond the arms K, two peculiarly-constructed rack'- wheels,P, the points of whose teeth are slightly rounded out or concave for receiving and'holding two pins, v1 i, which are set in the tops of two levers, Q Q, pivoted tothe frame'atj, the lower ends of said levers beingconnected by a cross-rod, k, immediatelybehind and in contact with the spring-brace M. 0n one of the extreme ends of one of the journals ,h is a thumbpiece, It, by which the roll N can be turned. The other roll, O, is turnedby the friction between it and the one N above it.

Upon the base A are pivoted two pulleys, S T, around which passes an endless cord or belt, Z, and on the top of one of these pulleys, S, is wrought a circular ratchet, m, into which a againstthetype, which has` previously been inked and brought intol that position, and receives the impress of said type, and so on as V often as a type is brought round to that point.

The presser may be covered with some yieldingmaterial, to prevent damage to the face of the type.

The carriage which carries the paper is not made fast to the endless belt l, although it is carried-forward by said belt. It could not be fastened to it, inasmuch as the belt travels in one continuous direction, while the carriage 'must travel forward and backward. The connection and disengaging of the two things are as follows: On the spring-brace M is a projecting piece, r, Fig. 2, which, when the pins i i. are in the spaces between the teeth of the latch-wheels l?, causes said projecting piece r toy jam the belt Ztight up against across-bar, fo, of thefrauie, and thus: the friction on the belt between the piece r andv the cross-piece 'o of the frame carries said frame with the belt. When the line .s printed out to the edge of the paper, or at whatever point it may stop, the pins i 'il are raised out of the space'betwee'n the teeth and rested in the concaves ou the pointsof the'teeth. Tlisdi'sngagetlie 'piece r from the beltand the carriage isfrun b ack, while the belt may remain stationary.r Before the new line is commenced the points i i are advanced between the next set' of' teeth by turning the roll N, and'this forms the space between the lines.

The type-wheel H is hung on friction-rolls u, to facilitate its movement, and the type, as they are turned round on the type-wheel, may pass in contact with an inking-roller, W, Fig.

3, to receive their supply of ink. Fig. drepresents a modification of the disk or wheel D, upon which the letters are arranged, and of the lever and conical point and recesses, said lever being swiveled at g2 to the shaft E, as represented in said figure.

Having thus fully described the nature o f vmy invention, I would state that I'am awarev that a type-wheel having upon it vertical type and moving to the paper to give the impression has been used. vThis I do not claim; but What Ido claim as new, and desire to secure byLetters Patent, is

1. In combination with a type-wheel having its types radiallyarranged thereon and operated as herein described, the presser-bar U,

for carrying the paper to the type to receive the impression, substantially as described.

2. The manner of connecting and disconnecting the paper-carriage and endless belt, together with the spacing, of the lines, by

' means of the points i, ratch-wheels P, brace M,

and its projecting piece r, so that the belt may run in one continuous direction, 4Whilethepapercarriage may be traversed back andforth, substantially as herein described.

.TGHN H. COOPER. Witnesses: J onN PEILLIPs, g C. R. HALLOWELL.

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