US407730A - Peters - Google Patents

Description

(No Model.)

GQL. HEALY.

PRINTING TE LE GRAPH.

No. 407,730. Patented July 23, 1889.

UNTTED STATES ATENT OFF CE.

CLARENCE L. HEALY, OF BROOKLYN, ASSIGNOR TO THE COMMERCIAL TELE- GRAM COMPANY, OF NEWV YORK, N. Y.

PRINTING-TELEGRAPH.

SPECIFICATION forming part of Letters Patent No. 407,730, dated July 23, 1889.

Application filed December 27, 1887. Serial No. 259,139. (No model.)

To all whom it may concern.- part hereof, Figure 1 is an illustration, prin- Be it known that 1, CLARENCE L. HEALY, of cipally in diagram, of the parts of a printing- Brooklyn, in the countyof Kings and State of telegraph transmitter necessary for the un- New-York, have invented a certain new and derstanding of my invention, showing the pre- 5 useful Improvement in Printing-Telegraphs, ferred arrangement when the transmitter has of which the following is a specification. a locking-magnet for locking the circuit in- The objectlhave in viewis to produce such dependent of the key; and Fig. 2, a similar an arrangement of circuits and controlling view showing the preferred arrangement devices at a printing-telegraph transmitter when there is no locking-magnet, and show- 10 that the shifting-circuit cannot be affected ing also in dotted lines the arrangement hereexcept when the trailing arm of the transmittofore employed. ter is on the shifting-segment of the sun- With reference more particularly-to Fig. 1, flower. A is the key-board, having the usual letter or The invention is applicable to any system figure printing keys a, and having also the [5 of printing-telegraphs employing printers shifting-keys b 0. These keys I) c in practice with two type-wheels, the shifting-circuit at are marked, respectively, figure and letthe transmitter acting, through relays or diter, the former being depressed to release rectly, to shift the printing-pads of the printthe figure-wheel and the latter to release the ers from one type-wheel to the other, or to reletter-wh eel. From the base of the key-board 2o verse the current in the printing-circuits of a connection 1 runs to the dynamo or other the printers, or for throwing a definite resistsource of electrical energy B, for illustration, ance into and out of the type-wheel circuit. to the positive pole thereof, while from insu- The invention while applicable to any of lated contacts (1, under the points of the printthose well-known systems, will be specifically ing-keys a, connections 2 (shown in dotted 25 described in connection with the Field syslines) run to the segments of the sunflower C. te As will be understood, the sunflower is sta- It has heretofore been possible for the keytionary, its segments being swept over by a board operator in transmitting for printers trailingcontact-arm D, which, with a clutchemploying two independently-rotating typewheel E, is fixed to a rotating shaft 6. From 3 wheels to release the locked wheel at other the shaft 6 a circuit-connection 3 is made points than the unison-dot, thus throwing the back to the other or negative pole of the dywheel released out of unison. To avoid this namo B, including the clutch-magnet F,which it has been necessary that the key-board opcontrols the clutch-lever F, and also includerator should always wait until the transmiting the magnet G. The shifting-keysb ctouch,

35 ter stops on the last letter or figure before dewhen depressed,insulated contacts f f, which 8 5 pressing the unison-dot key to shift to the are connected together and with a sunflower other wheel. This necessity is annoying to segment. by a wire 4. the operator and causes some delay in trans- The shifting-keys b c carry two contactmitting, unless he fails to observe due care, rods g h, which are insulated electrically from 40 which results in throwing the released wheel the keys Z) c and from the base of the key- 0 out of unison. board, and touch insulated contact-springs 9 By my invention I introduce an additional 7t at the same time that the stems of the circuit-controller for controlling the circuit keys I) o touch the contacts ff. A wire 5 of the shifting-relays, which circuit-controller connects the two rods g h with the negative 45 is itself controlled at the unison-dot segment pole of the dynamo, while wires 6 and 7 ex- 5 of the sunflower as well as at the key-board, tend from the contacts g h.

so that the shifting-relays are not affected un- H and I are two electro-magnets, between til the trailing arm reaches the unison-dot which playsapivoted armature-lever K. The segment of the sunflower. lever K at its upper end plays over plates ll,

50 In the accompanying drawings, forming a of 1netal and insulation, respectively. This this segment, while the magnet G will draw,

lever K and the metal plate Z are included in the circuit of the shifting-relays L, so that such shifting relay-circuit is closed when the lever K is swung to the left, but is opened when the lever K is swung to the right. This shifting relay-circuit also includes, as shown, the armature-lever of the magnet G and its front contact-point, so that this circuit is also controlled by the magnet G, it being closed when the armature-lever of the magnet Gr is drawn forward to its front point. The unisondot segment on the sunflower is divided into two parts m m, insulated from each other, but connected together by the trailing arm D when it passes over this segment. The part m is connected with the wire 4 from the keyboard contacts f f, while the part m is connected by the wire 8 with the two magnets H I, the other ends of whose coils are conn ect ed by the wires 6 and 7 with the contacts 9 z The drawings show the parts arranged for printing on the 1etter-wheel, the letter-releasing key 0 having last been depressed and the lever K swung to the right, opening the shifting-relay circuit. Now, if the figurereleasing key I) is depressed, the contact-rod g will touch the contact 9, closing circuit to the magnet H at the same time that the stem of the key 12 touches the contact f; but this has no effect upon the circuit-controller form ed by the magnets H I and the lever K until the trailing arm reaches the unison-dot segment and bridges the parts on m of which such segment is com-posed. The key 1) being still depressed, as soon as the trailing arm touches the unison-dot segment the operating-circuit of the transmitter will be closed from the positive pole of the dynamo by wire 1 to the base of the key-board by key I), contact f, and wire 4: to the part m of the segment, and by the trailing arm to the shaft 6, and by wire 3 through the clutch-magnet F and controlling magnet G. The clutch-magnet will stop the transmitter while the trailing arm is still on its armature to its front point. At the same time the circuit to wire 8 will be closed by the bridging of the parts an 'm' of the unison-dot segment. This will close the circuit to the magnet H through the contact 9', the rod g, and the wire 5, which magnet H will attract the lever K, swinging it to the left and making the final closure of the shifting-relay circuit.

To shift back to the position shown in the drawings, the key 0 is depressed, closing the circuit at the transmitter through the rod h and contact 72/ to the magnet I. Now, when the trailing arm bridges the parts m m of the sunflower, the magnet I will be energized, swinging the lever K to the right again and opening the shifting-relay circuit atthat point.

The arrangement shown in Fig. l and just described in detail is preferred when the transmitter is provided with the locking-mag net M, located in the operating-circuit and acting to shunt the key-board, since when the locker is used the circuit-controller H I K must be arranged to be independent of the locking-magnet; but when no locking-magnet is employed the arrangement may be somewhat simplified, as shown in Fig. 2. Vith this latter arrangement the rods g h and'extra contacts g h are omitted and the magnets H and I are controlled at the contacts f f of the unison-keys b c. The contacts ff are not connected together, but separate wires 9 10 run from them to the magnets H I, from the other ends of the coils of which a single wire 11 runs to the unisondot segment of the sunflower, which is a single undivided plate the same as the other segments of the sunflower. If this simple arrangement were used with the locking-magnet, the magnets H and I would be shunted by the locking-magnet before they had time to act, and hence they would not operate at all.

Heretofore the shiftingrelay circuit extended directly back to the key-board, being there controlled by the insulated tip 2' of the lever z" and the spring "L as shown, for purposes of explanation, by the dotted lines in Fig. 2. It will be readily seen from this that should a shifting-key be depressed before the transmitter is stopped by the key previously depressed the shifting-relays will act, although the trailing arm is not on the unison-dot segment of the sunflower.

, WVhat I claim is 1. In printing-telegraphs, the combination, with the key-board, the sunflower, the trailing arm, and the clutch, of a shifting-circuit, a switch controlling said shifting-circuit, and two magnets moving said switch in opposite directions, the circuits to such magnets being controlled both at the key-board and at the sunflower, substantially as set forth.

2. In printing-telegraphs, the combination, with the key-board, the sunflower, the trailing arm, and the clutch, of a shifting-circuit, a switch controlling said shifting-circuit, two magnets moving said switch in opposite directions, the circuits to such magnets being controlled both at. the key-board and at the sunflower, and an electro-magnet in the sun flower-circuit acting to close a break in said shifting-circuit at each stoppage of the trailing arm, substantially as set forth.

3. In printing-telegraphs, the combination, with the key-board, the sunflower, the trailing arm, and the clutch, of ashifting-circuit controlled both at the key-board and at the sunflower, substantially as set forth.

at. In printing-telegraphs, the combination, with the sunflower having a divided segment, the parts of which are bridged by the trailing arm, of a circuit broken at the sections of such segment and closed by the trailing arm, substantially as set forth.

5. In printing-telegraphs, the combination, with the sunflower haviu g a divided segment,

IIC

the parts of Which are bridged by the trailing arm, of a circuit broken at the sections .of such segment and closed by the trailing arm, the key-board having contacts also controlling said circuit, an electro-magnetic circuit-controller in said circuit, and the shiftingcircuit controlled by said circuit-controller, substantially as set forth.

6. In printing-telegraphs, the combination, with the unison-keys and the separate insulated contact-rods and contacts at the keyboard, and the sunflower having a divided segment, of a circuit controller composed of two magnets acting oppositely on a circuit-controlling armature lever, connections through the sections of the divided sunflowersegment to the windings of both magnets, and separate connections from the magnets to the contacts of the insulated rods of the keyboard, substantially as set forth.

This specification signed and witnessed this 10th day of December, 1887.

CLARENCE L. I-IEALY.

WVitnesses:

W. BERRIAN GREENE, CORNELIUS BLAUVELT.

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