US173754A - Improvement in automatic roman-character telegraphs - Google Patents

Description

y C. BATCI-IELOR.

AUTOMATIC ROMAN-CHARACTER TELEGRAPH. N,173,754 Patenteareb. 22,1876.

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N- PETERSy PHOTO-.LITHOGRAPHER WASH NGTGN D C UrTED STATES PATENT OFFICE.

oEARLEs BATcEELoRoE NEWARK, NEW JERSEY.

IMPROVEMENT |N AUTOMATIC ROMAN-CHARACTER TELEeRAPHsQ Specitcationform'ng part'of Letters Patent No. 173,754. dated February 22, 1876; application tiled September la, 1875.

To all whom rit may concern ,and record Roman letters upon chemicallyprepared paper over several Wires,'at a distance, for the purpose of reporting the 4price Y of stocks, gold, Sto.

rlhe invention consists inthe combination of a roller for giving motion to the chemicallyprepared paper with a number ot recording points, Wires, or styluses, and a number of polarized relays placed in the various circuits, the tongues of which connect and disconnect they current from the local battery With the recordingpoints. It further consists in the arrangement of circuits for forming letters and numerals bythe transmission of positive and negative currents by groups of perforations in a strip of paper at the transmittingstation, Which currents give motion to the tongues of polarized relays placed in the several circuits which open and close a local circuit connected to the recording-pens.

In the diagram, Figure 1, a, is the drum, which serves to carry forward the chemicallyprepared paper, upon which the characters are to be recorded by chemical decomposition.

This drum is rotated by clock-Work, and con-v structed in the usual manner, with the exception that one of the, shafts, which rotates slower than the drinn, is provided with a Worm or cam, whereby the clock-worlc is automatically stopped after a has made a' certain number of revolutions, should the lever ot' the magnet c fail to arrest its rotations by coming in the path of the pin l16. b c d ej' are the recording-points, tipped, preferably, with platina, resting upon the chemically-prepared paper. b, d, and f are placed slightly in advance of c and c, the former recording by positive currents sent on the various circuits containin g thepolarized relays h lo l m n, and c c recording on negative currents, which imme diately follow the positive ones, and vice versa. The decomposition of the chemical in the moistened strip is effected by the current from a local battery, p, the positive pole of which is l connected to all. the tongues of the polarized relays, while the negative pole is connected to the drum a. The polarized relays h 1c are placed in one circuit, s, and are so adjusted that 4Vwhen no current is passing over the circuit the-tongues are not in`connection with 4theircontact-points. The--relayslm are placed in the main t, and their tongues 'also do not connect with their contact-points. The relay 4a is placed With the releasing-magnet a in the points ce in connection with the battery p,

recording a portion of theletter. Immediately the negative current is discontinued the tongues of 7c a tly away from their contactpoint, and at the instant the'marks made by c c have, by the rotation of the drum c, reached a point just opposite the points b alf, a series of positive'current-s are sent over s tu, and the tongues ot' h. l a, which do not respond to the previous negative current,.come in connection with the contact-points, placing the local battery in connection with b d f, recording another portion of the letter, and so on until the letter has been recorded.

I will now describe the method which I adopt to transmit positive and negative currents from perforated paper. r is the drum,

which serves to carry the paper forward.u Restv ing upon the drum are live contact-rollers. The roller 13 is connected to a battery, 2, with its positive pole to the line s. 12 is connected to a battery, 3, having its negative pole to' the line s. 9 and l() are'connected "to batteries 4 and 5, `With the poles connected, as 2 and 3, to the line t, while the roller 8 is connected to 1f, now, the rst portion of 4 on the polarizedmagnete', moves its arma- 1'1tnre,and allows the lclock-work to move the dium'w In Fig. 2 is shown a Roman letter formed "of groups of holes` the passage of which, un-

der the rollers upon i', will readily show the manner in which the alternatev positive and negative currents are sent, and corresponding letters made upon the chemical paper, as indicated'in Fig. 4. y The drum r may either be rotated by hand or any suitablevsource of power.

The circuits at the transmitting-instrlment, and the key to close the line-circuit and liberate the mechanism that rotates the receiving- (lrum, may be used with stylus-points and cirlcuits `adapted to receive without the relays yand local circuits.

'If the chemical paper is'dispensed with, and thelevers of the polarized relays massed to- 1 gether over the drum a, provided with ink- '.Wheels inked by an inking-disk, orin-any suit- !ahle manner, the record can be in ink,instead ot' vthe levers closing circuit and recording by chemical decomposition. y Fig. l3 shows a case made with a lid for hold#y ling theroll of moistened chemical paper, so as to lessen the evaporationand maintain thelpaperfin condition'for use.

I do not wish toconiine myself to any particular number of circuits, as the employment of an additional circuit will allow of the use of two more recording-pens` and consequently more perpect Roman characters can be formed.

I claim as my invention- 1. The receiving-drum for thechemical pav per, and the range of styluses, some of Which are in advance of the others7 in combination with the relay electro-magnets, local circuits,

' and line-connections, substantially as set forth.

' oHAs. BATcHELoR.

Witnesses:

GEO. T. PINGKNEY,

GHAs. H. SMITH.

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