US573592A - herzog - Google Patents

Description

2 Sheets-Sheet 1.

(N9 Model.)

F. B. HERZOG 8 8. S. WHEELER.

ELECTRIC SIGNALING APPARATUS- ted Dec. 22, 1896'.

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P. B. HERZOG & S. S. WHEELER.

ELECTRIC SIGNALING APPARATUS.

No. 573,592. Patented De0.-'ZZ, 1896.

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flail/ UNITED STATES PATENT ()FFICE.

FELIX BENEDICT I-IERZOG AND SOHUYLER SKAATS WHEELER, OF NEW YORK, N. Y.; SAID WHEELER ASSIGNOR TO SAID HERZOG.

ELECTRIC SIGNALING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 573,592, dated December 22, 1896. Application filedJanuary 29, 1886. SerialNo. 190,175. (No model.)

when the wheel is rotated step by step by the HEEzoe and SoHUYLEE SKAATS WHEELER,

citizens of the United States, and residents of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Electric Signaling Apparatus, (Case No. 30,) of which the following is a specification.

This invention relates to electrical signaling generally, and more particularly to the cooperation of apparatus at a receiving-station which is controlled from a sending-station by a transmitter adapted to transmit two or more separately variable signals at each transmission. 4

In the drawings, to which reference is hereby made, Figure 1 is a plan, and Fig. 2 an elevation, partly in section, of a type of transmitter adapted to the cooperation described. Fig. 3 is a plan, and Fig. 4 an elevation, of a type of the controlled apparatus at the receiving-station.

It is to be understood that although a single distant station is shown any number may be connected with one receiving-station, either in series or multiple or in oombin ations of these arrangements.

The transmitter may be of any suitable variety, the one described beingtypical only, and comprising the following elements, (shown in Figs. 1 and 2:) A shaft 18, suitably mounted in bearings 27 and 28, carries a head 24:, ending in sleeve 13, within which a rod-arm L may be pushed in and out. This arm ends in a spring-point M, of suflicient length to touch raised plate N, which is insulated from the dial. Rigidly fixed to the shaft 18 is the star-wheel R, carrying extension H and engaging with spring-click D, mounted on pin 30, fixed to ratchet-wheel G. This wheel is loose upon the bushing 26,which is fixed to the shaft. The ratchet G cooperates with click B and spring 15 on armature 16 and with engaging pawl E and its spring E, mounted on stud 25, and the cooperation of the'parts is such that the rotation of the arm may take place in either direction by hand by means of knob M, and when rotated in one direction the wheel G will be held by the clicks, so that it does not move with the shaft, whereas armaturethe arm is carried along. The dial is marked off in columns of spaces or suitable indications. Magnet A attracts armature 16, pivoted on insulated post 23, and by gravity of knob F or stress of spring 5 the armature normally causes its contact 22 to touch contact 3, mounted on a spring fixed to insulated stud S. The parts are inclosed in case 9, and the line connections are by way of insulated posts 1 and 2 to lines 10 and 11.

The operation of the transmitter is as follows: The pointer having been set over some indication and the circuit at any point in the line being closed to a distant station, the cur- I the click 13 causes wheel G, and hence thepointer, to move one step, and the circuit will also be again completed at 3 and 22. This operation continues until the extension H on wheel R has been rotated enough to cause it to touch spring 3, after which a closed-circuit pause will occur, because, although 22 has been carried away from the normal position of contact with spring 3, this spring has followed the armature-contact 22, being pushed by the extension II. This condition continues until a break occurs elsewhere. In the organization of receiver as here typified this break will be caused at the receiving-station, whereupon the armature will fall back and in its usual manner will impel the wheel G one step, and thus free the spring 3 as extension H passes beyond it. The relative adjustments of the retractile spring and of,

the spring 3 are such that the former will cause the wheel driven by it to overcome the erative end of extension H during each step of the wheel will be large enough to cause its position of rest at the end of the step which brings it into contact with the terminal 3 to be such that thearm willhave passed beyond the point at which it can neutralize this backward motion of the armature. The resultant of the forces tending'to retract the armature if expressed by a line indicating their direction may be opposed by the extension I-I, so that unless this were compressible it would block the armature retraction, orthe axis of resistance of this extension may make a smaller or a larger angle with that line, according to the relative adjustments and centers of motion of the extension and of the armature and of the yieldingspring support to the contact 3. In practice it i'sjvery simple to 7 get the'relative'adj ust'nrent's of the'degrees of motion and ofpower"andresistanc'e of the various parts, so that a very slight retractile force'wills'ufii'ceto cause the motion of 'the wheeltocontinue'after the break has been produced at the sending-station. Th'usthe step-by-step'm'otion'will continue until in the courseo'f thefu'rther roratio'nthe pin M on the pointer will-have been carried i'n to'contact with the plate N, which is insulated everywhere "excepting at its connection "to branch 14, and thus to the outgoing circuit by line 6.

The incoming circuit, after leaving the magnet, is connected by branch 19 with a metal of the 'movement fr'ame, and through this with pointer M, and hence when this contacts'w'ith M the circuit is as follows: 'ma'gnet A,-br'anch '19, movement-'arm'L, pointercontact M, plate N, branch 14 6, post 2, and out to-line, and this condition continues and in the type of transmitter shown marks the end ofa signal transmission.

Thep-late M is so shaped and placed with reference t'othe in'dic'ationsin each column of the dial that, taking any 'columnas 'zero -or normal, an additional column (and hence step of the wheeh'there being as many steps as columns or multiples of the same) will have to'be' passed over for each indication from the top of the column. For instance, the pointer 'is shown'at the topmost indication in a column. Then ifafter the-pause due tointerference'of H and 3 fo'urst'eps would have been required to bring the pointer in contact with the outer end of N it would take seven'ste'ps to bri'ng it in contact with the in-nerend of Nit thepointerhad been at rest on a fourth indication in its columninstead of on the first.

Thetransmitter just described thus transmits two'se'ries of current di'Eerent-iations, and these may be used to 'controlapparatus at "anotherstation, and one form of s'uch'app'a'ratuswill now be described. This consists of two progressive movements, hereinsho'wn 'as step-by-step wheels, the "first of which com prises wheel '48 on shaft "57," and, coeperating in a well-known wa'ywith parts47 46 and the pawl carried by'armature49 and retracted by spring 45 and moving around pivot 44, causes the wheel to rotate, and with it the dial 50, indications of which are arranged in columns and in general would. be so placed as to indicate corresponding indications to the transmitter, it being understood that the dial may be arranged to indicate in the same or in a reverse direction. The parts being in their normal position of rest, then if the transmitter has been set at some arbitrary signal and the circuit is closed by key 37 at the receiving-station then for every impulse before the closure ,(in the transmitter) between H and 3 a corresponding impulse will be given by magnet 38 of the receiving-station. It will be remembered that after the closure between H and 3 the transmitter remains at rest until a break occurssom'ewhere in line, and'this break will be given 'by the operatormanually by'mea'ns of key 37 or 34, or, a'ccording 'to the ultimate object of'the mechanism, it may begiven autom'aticallyas follows: The first attraction by magnet 38 *freed verge 42 of the springfimpelled'clocktrain 32 58 41,-"an'd'thi's'train isso timed that,

"either uninterruptedl y or interrupted at each retraction-of thearinature extension, it will run a length of'tim'e at least as great as'that required to transmit 'the maximum number 'of'impulses in the first part of the transmis- "sion,and then the wheel 32 will bring itspin 31 in position to rock arm 00, so that the "switch-key 34 will'leave the contact of the first branch 40 and will-also close the contact of second branch 35, and'this switchingwill bring magnet in circuit, and then thesec- 0nd step by-step movement willbe operated as many steps as the 'transmitterpro'duces between the pause due to contact of H and 3 and the final pause due to contact between M and N.

It-will'be seen that-by the organization de scribed the first movementatthe'receivingstation is directly controlledby the first part of the signal transmitted,'while the second part of the signal operates thesecond'move ment of the receivin g apparatus. shown, the only local eifect of these progressive movements was that-the first one' rotated the dial in such fas'hio'nas to bring its 001- umns successively into a given position, -'-and the second movementmoved'a pointer 51,30 that the proper one of the-several indications in'the selected column can be designatedby the pointer of the second movement, *but'we do not intend to 'c'onfine oursel'ves'tomerely "such-visual indications, but wish toc'over, broadly, the apparatus 'when' a'd'apte'd and organized to transmit two separate variablesi'g As herein nals at one transmission, and at a receivingstation an apparatus comprising two progressively-moving elements, each controlled by a magnet the first magnet being controlled by the first part of the transmission, and the second magnet by the second part.

2. At a sending-station, a transmitter organized to transmit two separate variable signals at one transmission and at a receivingstation an apparatus comprising two progressively-moving elements each controlled by a magnet, the first magnet being controlled by the first part of the transmission and the second magnet by the second part, together with a time-movement, acting to control the second element.

3. At a sending-station, a transmitter organized to transmit two separate variable signals at one transmission and at a receivingstation an apparatus comprising two step-bystep wheels, each controlled by a magnet, the first magnet being controlled by the first part of the transmission and the second by the second part,

4. At a sending-station, a transmitter organized to transmit more than one series of impulses at each transmission, and at a receiving-station apparatus comprising a separate moving part and a separate magnet for each of the parts of the signal transmitted.

5. A receivingestation apparatus comprising two wheels each controlled by its magnet,

the magnets being in branches of amain circuit, together with a time-switch controlling two of these branches.

6. At one station, means for producing two groups of impulses, together with a controlled device as a magnet, and at a second station a mechanism controlled by the first group and controlling the device at the first station at the termination of the first group of impulses.

'7. A signal-transmitter comprising means for setting it to transmit two sets of signals,

a magnet controlling the second set, means controlling a pause after the transmission of the first set, and at a second station, a switch controlling the subsequent energization of the

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