US185827A - Improvement in stencil-pens - Google Patents

Description

A. E. HIX.

sTENcIL PEN.

Patented Jan. Z, 1877.

UNITED STATES PATENT @Errea ALBERT E. HIX, OF SYCAMORE, ILLINOIS.

|MPRovEMENT IN sTENclL-PENS.

Specification forming part of Letters Patent No. 185,827, dated January 2, 1877; application tiled July 29, 1876.

To all whom 'it may concern Be it known that I, ALBE aT EUGENE Hrx, of Sycamore, in the county of De Kalb and State of Illinois, have invented a new and useful Improvement in Stencil-Pens, which is fully set forth in thefollowing specification, reference being had to the accompanying draw ings, in which- Figure 1 represents a perspective view of the apparatus; Fig. 2. a vertical section taken on the line x x, Fig. l, a portion of the apparatus being broken away; and Fig. 8, 'a detail vertical section taken on the line y y, Fig. I.

My invention relates to mechanism for preparing paper stencils to be used in making copies in the same way as those prepared by what is known as the Electrical Pen.77

The invention consists in mounting the pen or needle on an arm which has both a horizontal and vertical motion, so as to give the needle the required freedom of movement and, also, in'the special devices for driving the needle, as will be hereinafter fully set forth.

In the drawings, A represents a portion of the desk or table, and B B two upright posts or standards rigidly attached to the table, and joinedtogether at their upperends, so astoconstitute a rigid and firm supporting-frame. The standards B B, instead of being attached to the desk or table, may be fastened to the wall of a room, or any other firm support which will enable the apparatus to be conveniently disposed for practical use. Between the standards B is secured a solid block, C, which is provided with a socket, as seen in Fig. 2 of the drawings. Within the socket in the block C is set a pin, D, the upper end of which is forked and bent outward, so as to receive one end of a swinging arm or light frame, E E, which is pivoted at its inner end to the ears of the pin D. The upper end of the tube F is pivoted to the outer end of the swinging frame E by means of a rectangular box, F', upon the upper end. An elastic cord, G, 1s attached to the swinging frame E, some distance in front of its pivotal connection, and also to the top of the support B B. This cord should be, sufficiently strong to prevent the frame E from falling by its own weight and the mechanism attached thereto, but at the same time should yield easily, soh as to permit the needle to be held down to the paper without the exertion of much force. Instead of an elastic cord, a spring or other suitable elastic support may be employed.

Upon the pivot connecting the pin D and the arms E is placed a driving-pulley, H, lo-

cated between the arms E E. A second small pulley, I, is mounted upon the pivot which joins the frame E and the needle-tube F. the pulley being within the box F. An eccentric or cam, K, is fastened to the pulley I and made a part thereof.

The needle-pitman L is forked at its upper end, as seen in Fig. 3 of the drawings. A cross-bar is fastened to the free ends ofthe forked pieces, so as to form with them a sultable bearing for the eccentric K, which they are arranged to surround. The pitman L extends down through the tube F, and a needle, M, is attached to its lower end, and projects slightly through the lower end of the tube F, which is pointed and contracted to iit closely around the needles, as seen in Fig. l of the drawings.

A band, Nz passes over the pulleys H and I, and it is evident, therefore, that if motion is communicated to the pulley H, a vibrating movement will be given to the needle M by means ofthe eccentric K and pitman L. A pulley, O, is mounted upon the same axis as the pulley H, to which it is secured, if the latter is a loose pulley; but if the pulley H is fastened to its journal-shaft, the pulley O may be separate therefrom, but secured to the journal-shaft. The pulley 0 is rotated by means of the band P, which passes around it, andis driven by an ordinary treadle and track, or any other simple device of like nature. This latter device I have not shown, as it is so common that its operation in this connection Will be readily understood. By the motion of the pulley 0 the necessary motion is given to the pulley H to reciprocate the needle M, the vibrations of which may be made as rapid as desired by arranging the drivingpulleys suitably with reference to their size. The ears of the pin D project in front of the standard B, and are sufliciently contracted to permit the swinging around of the frame E to a considerable extent.

It will be seen that with my device the needle may be moved in three directionsthat is to say, it may be moved in the are of 'a circle; by turning the pin D in its socket it may be swung back and forth in straight lines upon its own pivot; and it may be raised and lowered by raising and lowering the frame E on its pivotal connection. Sufcient freedom of motion is thus obtained for the needle to permit letters or other characters to be traced upon paper while the needle is vibrated, thereby forming a stencil, which is afterward used in making copies, in the usual manner.

By arrangement of the driving mechanism 'and supporting parts the needle is relieved from any great weight, and therefore can bc guided upon the paper to form the stencil with great ease. The elastic cord Gr also ass'ists in this direction, and acts to withdraw the puncturing-needle from the paper so soon as it is released.

I am aware that stencil-papers for copying have been prepared by an instrument called the Electrical Pen, by which the puncturingneedle is driven by a small electrical exigirle mounted upon the needle-arm, and therefore I do not claim, broadly, a vibrating needle for making' stencil-papers.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination of the swivel-pin D, swinging frame E, pivoted thereto, and needletuhe F, pivoted to saidframe, substantially as described.

2. The combination ot' the pulleys H and 0. bands N and P, pulley I., eccentric or cam K, pitman L, and needle M, substantially as and for the purpose set forth.

ALBERT EUGENE HIX. Witnesses:

ARTHUR M. STARK, C. W. MosHER.

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