US400268A - Charles a - Google Patents

Description

(No Model.)

0. A. THOMPSON. APPARATUS r03 PRODUGING GHARAGTERS IN THEIR REVERSE.

No. 400,268; Patented Mar. 2 6, 1889-.

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ATTORNEY.

UNITED STATES V PATENT OFFICE.

CHARLES A. THOMPSON, OF NE\V YORK, N. Y., ASSIGNOR TO THE RAPID DUPLICATING AND COPYING MACHINE COMPANY, OF SAME PLACE.

APPARATUS FOR PRODUCING CHARACTERS IN THEIR REVERSE.

SPECIFICATION forming part of Letters Patent No. 400,268, dated March 26, 1889. Application filed September 18, 1886. Renewed February 8, 1889. Serial No. 299,225. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES A. THOMPSON, a citizen of the United States of America, and a resident of New York city, in the county and State of New York, have invented new and useful Improvements in Apparatus for Producing Characters in their Reverse, of which the following is a specification.

Under certain processes of copying writing, &c., in the obtaining from a single written copy reproduced copies therefrom the first writing from which reproductions are taken is reversed or written backward, presenting a corresponding appearance to type-face, and to obtaining a practical and correct placing or writing of such reversed characters on a sheet of paper or other suitable material is the object of the present invention; and the invention consists in the combination, with a fixed tablet or board of suitable size and shape, of a tracing-pencil or other point hung through suitable intermediate parts upon a jointed bar secured to said tablet, which pencil is permitted to be moved over the said tablet and to be lifted from and returned to such board, as ordinarily and usual in writing or printing, &c., and of arms or parts carrying a fountain or other pen controlled by and moved in conjunction with the parts directly supporting said pencil; which are at the opposite side of such tablet, and which simultaneously move in corresponding manner to parts carrying such pencil or point, whether on the surface of the board or away from and return to such surface thereof, all for the purpose of producing at the reverse side of the tablet, characters which are the reverse of those traced on the obverse side of said tablet, substantially as will fully appear, reference being had to the following detailed description and the accompanying sheet of drawings, in which Figure 1 is a front view of the tablet having applied to it the charactenproducing apparatus of this invention. Fig. 2 is a side view of Fig. 1 and partially in longitudinal section Fig. 3 is a representation of characters in the reverse as obtained under the operation of the apparatus of this invention.

In the drawings, A represents a tablet or board of suitable size and shape and, as shown, rectangular. This board A has a lug, B,rig-

idly attached to it, to which is jointed an arm,

C, which may be in one or more jointed parts to allow a swing of such arm and of the parts jointed, as hereinafter mentioned, in a plane close and parallel to the face of the tablet A.

D is an arm or bar pivoted at d, to which an arm, D is fulcrumed in bearings d of said bar D, at the outer end f of which is a suitable socket and clasp, in which a pencil, stylus, or other marking or tracing point, g, can be secured. At and secured to the outer end I) of said barD is a plate-spring strip, E, shaped, as shown, with an offset into a plane beyond that of the bar D and toward the opposite side of the tablet A, to which is secured a bar, F, of substantially the same extent as the bar D D but on the opposite side of said tablet A, but both preferably in the same plane at right angles to that of the tablet, and this bar E terminates in a socket or clasp, in which a pen or other suitable marking and ink-depositing device is secured.

At the end (1 of the bar D is hung, by a pivotal joint, 01*, a rod, G,which passes loosely through a hole, 71, in the bar D and through a hole, 70, in the bar F, the outer end of which is screw-threaded, and on which a thumb screw or nut, l, turns against said bar F, and when screwed down forces such bar F against the reaction of the plate spring-strip E toward the tablet and the bar D D on the opposite side thereof, and when said thumbscrew is turned in the opposite direction the bar F is allowed to assume a position farther from said tablet, but always in a plane sub- I stantially parallel thereto. The tablet A is preferably made chambered or hollowed, as at on, having straight slots at n near its upper end leading from each side thereof to such chambered portion, and within this chamber is a pair of guide and feed rolls, p p, for the paper, one of which bears with frictional contact upon the other, and is provided with an axial externally-projecting thumb-disk, t, the turning of which rotates the said feed or friction rollers. A roller, H, containing paper, q, on which it is desired to produce the characters as hereinabove denoted, is located near the bottom of the tablet and can be hung in brackets K, attached, as shown, to a stand, L, in which the tablet rests, or is attached directly to such tablet, and also a similar roller, H may be provided to carry and supply paper at the pencil or obverse side of the tablet.

Spring-strips i o are provided at each side of the tablet, to hold the paper strip closely against the tablet.

In the use of the apparatus described it is preferable to employ a strip of paper at the pencil or tracing side of the tablet, which may be drawn from the roll HF, as in the delineation of the characters with a pencil, &c., the same are denoted on such paper, and the writer is thus enabled to observe the appearance, excellence, and progress of his work, and in the event of his attention being di- "erted to determine how far he had proceeded. The paper strips to receive the reversed writing, and also that on which to trace with the pencil the characters, are led from their re spective rolls, passed under the springs i '0 over the face of the tablet to and through the slots 1241 and their ends are guided to the point where the rolls 1) p are in contact, and by the turning of the thumb-disk zin the proper direction the said strips are carried in between such rolls and held by them and by the plate-springs n v smoothly against the tablet. ()no line of writing having been ex.- ecuted by the thumb-disk I, the rolls 1) p are rotated and the paper strips drawn up into position for receiving another line of writing. The paper strip, which has been entered between and fed by the feed-rolls, is during the time of the delineation disposed in the chamber of the tablet, and is free from interference with or by the working parts of the apparatus. When the work has been finished, the strips can be drawn out of such chamber, as is plain. Thus it will be seen that the pencil-point g, hung to the jointed arm G through the bars D D, as described, is capable of being moved in any direction, and within reasonable limits permitting the marking or tracing of characters as desired, and that the bar F follows a corresponding and parallel course thereto on the opposite side of the tablet A, and that if the pen be suitably supplied with ink the same will flow therefrom, as usual, onto the sheet of paper or other material employed, and that whatever characters in the course of the tracingpencil are produced in the obverse on the front side of the tablet A the exact reverse of such characters will be produced on the paper on the opposite side of the tablet, and that in moving the pencil or tracing-point in marking out the desired characters, in the lifting of such pencil, &c., to space from one word to another, or to dot is or cross ts, the bar D carrying the pencil at the end f, is raised from the tablet, and the opposite end is depressed, moving, through its connection by thepin G, jointed, as described, the bar F, (carrying the pen,) but in a line away from and parallel with the plane of the tablet at its reverse side; or, in other words, the bar F, carrying the pen, at such times as just above mentioned, will be moved bodily away from the face of the tablet a suitable distance, with results too obvious to require further description, and is returned, when allowed so to do, under the reaction of the spring-plate E, by which it is connected to the bar D.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. In an apparatus for producing characters in their reverse, the combination, with a tablet, of an arm supported to be moved in a plane parallel to one face of the tablet, and having a tracing-point at its end, and an arm connected to the movable arm to move in a plane parallel to the other face of the tablet in conjunction with the tracing-arm, and having a marking-point at its end, as shown and set forth.

2. In an apparatus for producing characters in their reverse, the combination, with a tablet, of an arm supported to be moved in a plane parallel to one face of the tablet, and having a tracing-point at its end, and an arm having a marking-point at its end and connected to be moved in conjunction with the movable arm in a plane parallel to the other face of the tablet, and having a connection with the said arm for being moved toward and from the face of the tablet in a manner corresponding with the motion to and from the tablet of the same, as shown and set forth.

3. The combination, with a tablet or board, A, of bars D D the one pivoted to the other, and the bar D carrying at its end a pencil or tracing point, and the bar D hung to said tablet through a suitable joint, and of bar F, connected to said bar I) by a spring-strip, l, and a rod, G, hung to the end d of the bar D, passing to and secured in contact with the said bar F, substantially as described, for the purpose specified.

l. The combinat-ion,with a tablet or board, A, of bars D D the one pivoted to the other, and the bar D carrying at its end a pencil or tracing point, and the bar D hung to said tablet through a suitable joint, and of bar F, connected to said bar D by a spring-strip, E, and a rod, G, hung by a swivel-joint to the end (I? of the bar D passing to and loosely through the end of said bar F, and having a thumb-screw, Z, substantially as described, for the purpose specified.

5. A tablet made hollow or chambered and having a pair of feed-rollers, p p, a slot, '17., and a spring-strip, o, in combination with a stand, L, for supporting said tablet, provided with paper-roll l'I, substantially as described, for the purpose specified.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 15th day of September, 1886.

CHARLES A. THOMPSON.

\Vitnesses:

R. HAMILTON, WM. SEARS BELLows.

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