US733883A

US733883A - Electrical annunciator.

Info

Publication number: US733883A
Application number: US13905703A
Authority: US
Inventors: John H Taylor
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-01-14
Filing date: 1903-01-14
Publication date: 1903-07-14
Anticipated expiration: 1920-07-14

Description

PATENTED JULY 14, 1903;

J. H. TAYLOR. "ELECTRICAL ANNUNGIATOR.

APPLICATION FILED JAN. 14, 1903.

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P'ATENTED JULY 14, 1903.

J. H. TAYLOR. ELECTRICAL ANNUNOIATOR.

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ELECTRICAL ANNUNGIATOR.

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UNITED, STATES Patented July 14, 1903.

, JOHN H. TAYLOR, OF SCHENEOTADY, NEW YORK.

ELECTRICAL ANNUNCIATOR.

SPECIFICATION forming part of Letters Patent No. 733,883, dated July 14, 1903.

Application filed January 14, 1903. Serial No. 139,057. (No model.)

' citizen of the United States,residing at Schenectady, in the county of Schenectady and State of New York, have invented new and useful Improvements in Electrical Annunciators, of which the following is a specification. My invention relates to annunciators for hotels, private houses, &c., and has as its essential feature a program-clockwhich is provided with means to automatically operate mechanism for closing a plurality of circuits at previously-determined times to ring alarmbells. A second device is also supplied whereby all of the circuits may be closed simultaneouslyto sound a general alarm,as in the case of fire.

The simple and no vel construction employed by me in carrying out my invention is fully described and claimed, and illustrated in the accompanying drawings, forming a part thereof, in which- 1 Figure l is-a front elevation of the casing containing the mechanical parts of my device. Fig. 2 is a detail perspective ofthe electromagnets and the related mechanism.

Fig. 3 is a detail section of the bearings. Fig. 4 is a front elevation of the casing with the front removed. Fig. 4" is a detail of the thermostat. Fig. 5 is a horizontal section on the line 5 5, Fig. 1. Fig. 6 is a vertical longitudinal section through the casing. Fig. 7 is a perspective of one of the conductingrings. Fig. 8 is a detail section through the rings and comb. Fig. 9 is a diagrammatic view illustrating the circuits. Like characters of reference designate lik parts in the different views of the drawings. The numeral 1 designates a casing which contains the mechanical parts of my device and which is generally located in the hoteloffice. Mounted within the casing lis a ciock 2 of ordinary construction, the face 3 of which is set into the casing and shows through an opening 4. The hour-hand'5 of the clock 2 is carried by a shaft 6, extending transversely the casing 1 and having a bevel-gear 7 secured on its inner end, which gear meshes with a like gear 8, rigidly secured on a shaft 9, extending longitudinally the casing. A ring-bearing 9 supports the upper end of the shaft 9, while the lower end is coned out at 9 and engages a conical bearing 9, set in a cup 9, bearing an apertured lug 9 which serves as a-connection for a conductor, as will appear, to enable a' circuit to be completed through the shaft 9.

An arm 10 is carried by the shaft 9 to serve as a circuit-maker, and with that end in view conducting strips 11 are seated in the arm 10 and are flush with the end of the arm at their outer ends 11 and are in contact with the shaft 9 at their inner ends. Aset of'circular conducting-rings 12 are mounted in thecas- 'ing and located concentric with the shaft 9.

Standards 13, located in the corners of the casing, support transverse partitions 14:.and have disks 15, of dielectric material, therein, which form supports for the rings 12 and insulate them from one another. A springbrush 12" is carried by each of the rings 12 and is inclined inwardly to engage the ends 11 of the conductors 11 to complete a circuit through the corresponding ring 12. The outer face of each of the rings 12 hasa series of graduations 16 formed thereon, which correspond to the hours and five-minute divisions on the face of the clock 2. These graduations are visible through an aperture 17in the easing 1, and anin'dex 18, located adjacent thereto, enables each of the rings 12 to be set independently of all of the others. Aset of springbrushes consisting of a brush 19 for each ring 12 bear on the outer faces of the rings 12. These brushes are insulated from one another and are each connected to separate conductors 21, each of which connects with one terminal of an electric bell 22, one of which bells is located in each room in the house. The other terminal of each of the .bells 22 is connected by a conductor 23 to a single conductor 2*, to a conductor 25, which is in turn connected to one pole of a battery B, the other pole of which is connected by a conductor 26 to the lug 9 on the bearing-cup 9 By this arrangement'a circuit will be completed through one of the bells 22 whenever the arm 10 comes in contact with one of the conducting-springs '12 This circuit would trace as follows: battery 13, conductor 26, shaft 9, conductors 11 in arm 10, one of the springs 12, the corresponding ring 12,

the corresponding brush l9, conductor 21, bell 22, conductor 23, conductor 24, conductor 25, and back to the battery B.

To enable any one of the bells 22 to be rung by the hotelclerk independently of the clock mechanism, a conducting-comb 27is mounted within the casing 1, and the teeth 27 thereon consist of spring-brushes, which are normally out of contact with the rings 12. Push-but tons 28, mounted in apertures in the casing 1 and located to engage the teeth 27, enable contact to be made between one of the rings 12 and the corresponding brush by the use of the push-button. A pusher-rod 29 is also mounted in an aperture in the casing and carries a foot 30 of suificient length to make sim ultaneous contact with all of the teeth 27 on the comb. A spring 31 bears on the outer end of the pusher 29 and tends to hold the foot 30 in contact with the brush. To oppose this action, an elbow-lever 32 is fulcrumed on the casing, one arm 32 of which lever normally engages a notch 29 in the pusher 29,and the other arm 22 is located adjacent to the poles of an electromagnet 33 to serve as an armature to be attracted to disengage the arm 32 from the notch 29 in the pusher 29 to release it and permit the spring 31 to force the foot 30 against the teeth 29. A conductor 34 is connected to the comb 27 and to the conductor 26 to enable a circuit to be completed through the rings 12 independent of the arm 10, but through the brushes 19, conductor 21, bell 22, conductor 23, conductor 24, conductor 25, and battery B.

In order to enable an alarm of fire to be sounded should there be fire in any of the rooms, a thermostat 35 is located in each of the rooms, and these thermostats are connected to the junctions of the

conductors

23 and 24 and also to conductors 36, which are in turn connected to a conductor 37, which connects to one end of the coils of the electromagnets 33, the other end of which coils is connected by a conductor 38 to the conductor 26. By this arrangement a circuit can be completed through the coils of the magnet 33, which circuit is independent of everything but one of the thermostats and traces battery I3, conductor 38, coils of magnets 33, conductor 37, one of the conductors 36, the corrcspondingthermost-at 35, conductor 24:, and conductor 25, back to battery 13. Completing this circuit would release the plunger 29 and permit the spring 31 to operate it to bring all of the teeth 27 of the comb 27 into contact with all of the rings 12 to ring all of the bells 22.

When my device is in use, the casing 1 is set up in the 013503 or any other convenient place and wired up, as shown in Fig. 9, with a bell 22 and thermostat 35 in each room. Fig. 9shows my annunciator wired for seven rooms. When an occupant of one of the rooms wishes to be called, the ring 12 corresponding to the bell 22 located in his room is set, by means of the index 18 and graduations 16, at the time he wishes to get up. The

arm 10 will be carried around by the shaft 9, which is driven by the clock 2, and will come in contact with the corresponding brush 12, when a circuit will be completed throughthe bell 22, brushes 10, shaft 9, and battery B, as before described.

In case it is desired to ring one of the bells without going to the trouble of setting the corresponding ring by hand it is only necessary to press the corresponding button 28 to complete a circuit through the corresponding tooth 27, ring 12, brush l9, bell 22, and battery B, as fully set forth above.

In case of fire in one of the rooms the corresponding thermostat 35 would be operated and a circuit completed through the coils of the magnet 33, as previously set forth, which would operate the lever 32 to release the pusher 29 and complete circuits through all of the teeth 27 and all of the bells 22. Suitable switches may be provided to prevent ringing any of the bells 22.

I do not wish to be limited as to details of construction, as these may be modified in many particulars without departing from the spirit of my invention.

Having thus described my invention, what I claim as new, and desire to secureby Letters Patent, is--- 1. In an annunciator, the combination of a plurality of rotatable conducting-rings, a comb bearing a conducting-tooth corresponding to each of said rings but normally out of contact therewith, a plunger bearing a foot located to engage allof said teeth, said plunger having a notch therein, a spring bearing on the outer end of said plunger, an electromagnet, an elbow-lever one arm of which serves as an armature for said magnet and .the other engages a notch in said plunger,

substantially as described.

2. In an annunciator, the combination of a plurality of rotatably-mounted conductingrings, a comb bearing a conducting-tooth corresponding to each of said rings but normally out of contact therewith, a foot mounted to engage all of said teeth, a spring arranged to exert a force on said foot to bring said teeth in contact with said rings, means opposing and overcoming the force of said spring, and an electromagnet arranged to operate said means to disengage it when a circuit is completed through the coils thereof, substantially as described.

7 3. In an annunciator, the combination of a circular conducting-ring bearing a resilient conducting-brush, a shaft mounted within said ring and bearing a conducting-arm designed to engage said brush to complete a circuit through said ring and said shaft, the lower end of said shaft being recessed, a cup provided with an electrical connection, and a bearing adjustably mounted in said cup and having a point which engages said recess in said shaft, substantially as described.

4:. In an annunciator, the combination of circular conducting-rings mounted concentrically and bearing brushes, a shaft carrying a conducting-arm designed to engage said brushes to complete a circuit, a cup, a bearing loosely mounted in said cup and supporting one end of said shaft, and screws seated in apertures in said cup whereby said bearing is adjusted to regulate said circuit-maker, substantially as. described.

5. In an annunciator, the combination of circular conducting-rings mounted concentrically and bearing brushes projecting inwardly, a shaft mounted within said rings and bearing a circuit-maker designed to engage said brushes, a transversely-adjustable ring-bearing engaging the upper end of said shaft and a transverselyadjustable conebe'aring supporting the lower end of said shaft