US1124680A - Selective signaling device. - Google Patents

Description

J. A. WOTTON.

SELECTIVE SIGNALING DEVICE. APPLICATION FILED AUG.31,1911.

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J. A. WOTTON. SELECTIVE SIGNALING DEVICE. APPLICATION PILEID'AUGJI, 1911.

Patented Jan. 12,1915v SHEETS-SHEET 2.

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JAMES A. WOTTON OF CRANFORD; NEW JERSEY, ASSIGNOR TO wESTEfiN El-ECTfilfi COMPANY, OF NEW YORK, N. Y., A CGBPOBATION OF ILLINOIS.

SELECTIVE SIGNALING DEVICE.

i ea-sec.

Specification of Letters Patent.

patented Jan. is, ieis'.

Application filedAugustM, 1911. Serial No. 647,080.

and a slow acting magnet adapted'to receive current in series, a' movable contact-making device, and stepping and holding pawls controlled by said quick and slow-actingmagnets for causing the advance of said movable contact-making device,

The invention relates more particularly to a selective signaling device of this class for us'ein a system wherein selection is made by advancing all of theselectors simultaneously until certain ones comprising a group have closed contacts individual to each selector which causes the release of the selectors of that group and again advancing all of the selectorsuntil the particular one of a released group closes a signaling contact. I

The object of the invention is to provide a simple and efiicient combination of contacts on the selector for accomplishing this pur- I pose, and consists specifically in,;providing two contact: arms of diiferentlengths preferably secured to a ratchet wheel andlocating adjacent to the ratchet wheel and in the path of the movement of said contact arms two spring contact. members, one of which cooperates with either of said arms. to close a releasing circuit for the, selector, the other of which is brought into operation only in conjunctionwith the longer of-said arms and closes a signaling circuit.

In the drawings illustrating this invention-Figure 1 is a front elevation of the selector with parts broken away;'Fig. 2 is a schematic of the selector illustrating the position of the parts and circuits completed with one of the contacts closed; Fig. 3 is a schematic of the selector illustrating the position of the parts and the circuits completed with the other of said contacts closed; Fig. l is a fragmentary detail view showing the arrangement of the selector contact springs.

In the drawings, 1 designates a base upon which. is mounted an inverted U-shaped frame having side members 2, 2, a top memher 3 and supporting, lugs 4, 4.

Suspended from the top member .3 of the U-shaped frame are two electromagnets 5 and 6 each comprising two coils.

Pivotally supported near the lower end .of the U-shaped frame are armatures 14 and 15', the armature It being responsive to electromagnet 5 and armature-15 being responsive to electromagnet 6, said electroe magnet 6 being made slow-acting, as more clearly indicated in Figs. 2 and 3. The ar matures 1d and 15 are provided with arms 25 and 26 respectively which are brought, out through openings in the frame and are extended upwardly along the end of said frame.

Attached to the upwardly extending arm 25 is an arm 27 carrying at its upper end-a pivotally mounted spring pressed pawl 28 adapted in the movement of the armature 14 to engage the teeth of a ratchet wheel 29 carried in an auxiliary frame 30 mounted upon the U-shaped frame. A holding pawl 31 mounted upon the frame of the selector is adapted to be drawn into engagement" with the ratchet wheel 29 by the action of a spring 32.

Secured to the armature 15 are two angularly disposed arms 33 and 34:, the arm 33 being-normally in engagement with the pawl 28 and the arm 3,4: with the pawl 31. The.

position upon the-withdrawal of the pawls therefrom. Springs 38 and 39 are adapted to return the arms 27 and 34 to normal position whenthe corresponding magnet isdcenergized.

Mountedupon a projecting lug 37 carried by the magnet frame, are two flexible spring contact members 40 and 4-1. 40 is the shorter and is in mechanical engagement with the arm 27- through a laterally projccting arm i2(see Fig. 4) on saidspring which engages an insulating pin 43 carried by said arm 27. The tension of the spring 40 being in a'direction to force it against the arm 27 said spring will partake of the movement of said arm. during the operation of the magnet 5. The contact spring The member 41 which is mounted tothe rear and in line with the spring 40 is provided with a proection 44 which normally bears against an insulating pin 45 on the outer-end of the arm 27 when. the selector parts are in their normal or inoperative position,

and against an insulating button 46 on the outer end of the arm 33 of the holding magnet armature when the two armatures are in their attra'cted position. I

Carried by the ratchet wheel 29 are two contact arms 50.and 51 adapted'in the rinsulating pin '45-on the jtheformer case,

. the insulating tation of saidratchet Wheel 'to be brought into engagement with the contact spring 40.

.As shown in the drawings the contact arm 50 is shorter than the arm 51 and when this shorter arm is brought into engagement with the cpntact spring 40, as shown in Fig; 2, it pushes said contact spring away from engagement with thearm 27 and the contact made by engagement of said arm 50 with the spring completes a short circuit of the magnet 6. This will cause the deenergization of the magnet 6 and permit the 25- circuit and is brought about by the engage ment of the contact arm 51' with the spring 40.

As shown in Fig. 3 the engagement'of the arm 51 with the spring '40 will complete a short circuit of the holding magnet 6 as in but the arm 51 being longer than the arm the contact spring 40 will be held in aposition beyond the outer end of pin 45-so that as a 41 followsthe-arm 33 forward upon the re- 5 The lease of the, armature 15 it will into contact with the spring 40 be brought and a cir- "cuit will be completed for a signal 60,

In-"the equipment ozta system with selectors embodying this invention the selectors willbe arranged" in groups,

prising, say for example, three selectors although/anynumber within a reasonable of the se-.

limit may comprise a group. All lectors comprising one group will have their arms 50 arranged so that they will be brought into engagement with the corresponding contact springs in response to the same number of current impulses sent over the line but no gtwo groups will have the parts 5Q. and 4Q in contact at the same time. separate selectors of each group will be the spring each group com so arranged that a different number of impulses will be required to bring the contact arm 51 into-engagement with the spring 40 in the case of each selector. It will be noted,

however, that one selector of each group may be arranged to have its contacts 51 and 40 closed in response to the same number of impulseswithoutcausing confusion so long as no two groups are released by the'same number of impulses.

The battery current tor operating theselectors may be supplied" to the line wires from a central or through the operationofany well-khgwvn form of impulse transmitting apparatus.

lclaimr' bination with a movable circuit-closing member, of contact arms carried thereby, a contact spring adapted to be gaged by each. of said arms, a second contact spring and means controlling the movement of said second contact spring into engage ment with the first mentioned spring when said first mentioned spring is'in engagement with one of said contact arms. 1

2. In a selective switching device the combination with a movable circuit-closing ,despatching station separately 'en- 1. In a selective .switchingxdevice the commember, of two contact arms of different lengths carried thereby, adapted to be separately contact arms, and a a contact spring second contact spring engaged by said brought into engagement withvthe first mentioned spring only by the engagement of the longer of said arms with said first mentioned spring- 3. In a selective signaling device'the combination 'with a movable circuit-closing member, of electromagnets controlling the movement of said -circuit-closing member,

contact arms carried by said circuit-closing member, a contact spring adapted to be separately engaged by said contact arms, a second contact spring, and means actuated by one of said electromagnets for controlling the engagement of the second contact spring with the first mentioned spring in such manner that such engagement takes place only when said first mentioned spring is engaged by one'of said contact arms; 4. In a selective signaling device the combination with movable circuit-closing arms, of stepping and holding magnets for controlling the movementof said arms-in one direction, a contactspring adapted to be separately engaged bysaid contact arms, -.a

second contact spring, and means actuated by said holding magnet for controlling the engagement of the. second contact spring with the first. mentioned springin such manner that such engagement takes place only 'When said first mentioned spring is engaged by one of said c'ntact arms.

5. In a selective signaling device the combination with a toothed wheel and stepping mentioned spring when said first mentioned spring is engaged by the shorter of said arms and to permit the engagement of said springs when said first mentioned spring is engaged by the longer of said arms.

In witness whereof, I, hereunto subscribe my name this 30th day of August A. D. 30

J AMES A. VVOTTON.

Witnesses IRVING MAGDQNALD, MORGAN VVAsHBURN, Jr. v

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