US1254849A - Burglar-alarm. - Google Patents

Description

W. C. REED.

BURGLAR ALARM.

APPLICATION FILED AUG-l0. l9l5- Patented. Jan. 29,1918.

3 'SHEETS-SHEET 1.

W. C. REED.

BURGLAR ALARM. APPLICATION FILED AqG.|o,1915.

154,8%9 I Patented Jan. 29, 19l8- 3 SHEETS-SHEET 2- W. C. REED.

BURGLAR ALARM.

APPLICATION FILED AUG- 10. I915.

1,254,849. Patented Jan. 29, 1918-.

3 SHEETS-SHEET 3- nrurnn snares manna carton.

WILLIS o. REED, or CAMBRIDGE, ILLINOIS.

BURGLAR-ALARM.

Specification of Letters Patent.

Patented Jan. 2 9, 19518.

Application filed August 10, 1915. 7 Serial No. 44,758.

. the improvements hereinafter described.

v The principal object of the invention is to enlarge or increase the efliciency, utility and capacity of apparatus of this nature. These ends will be more fully recited in the following specification. r

My improvements may be embodied in agreat number of ways, a preferred one'of which is illustrated in the accompanying drawings and in which: 7

Figure 1 is an elevation of elcctro-mechanical apparatus embodying my invention; I

Fig. 2, a detail, a front elevation of the talking-machine tripping detent;

Fig. 3, a detail, a side elevation of the same detent;

Fig. 4, a top plan of the talking-machine, a recording and reproducing disk shown thereon, and showing also a telephone;

Figs. 5 and 6 respectively, details of the window claw and adjacent parts;

Fig. 7, a side-elevation of the talking or sound-reproducing machine;

Fig.8, a detail of the window-sash contacts;

' Figs. 9 and 10 respectively, a top plan and a side elevation of the talking-machine circuit-breaking switch;

Fig. 11, a front elevation of the combination switch for the door;

Fig. 12, a detail of the interior of the switch-box; I

Fig. 13, a detail of the switch at the top of the door; v

Fig. 14, a detail of the rotating member of the combination switch;

Fig. 15, a spring switch contact;

Fig. 16, a rear elevation of the combination switch; and

Fig. 17, a side elevation, partly broken away, of the combination switch.

Corning now to a detailed description of the drawings, and referring to each element and, where necessary, to each partthereof, by a distinguishing numeral, uniformly employed, 2 indicates a battery constituting a source of electric energy. 3, 3, are current-carrying or circuit wires connected thereto. 3 3 indicate the wires of another circuit. 4 designates a wall plate and 5 a base on which it is supported.

6 indicates a door, 6 a casing, and 7, 7,v windows which it may be assumed are at some little distance from said door. 7 indicates window casings. 8indicates a telephone station, (as a central;-) 9 indicates V a telephone arranged in a police station or other suitable place distant from the station 8 and also from the building in which the door and window are shown; 10 indicates a telephone in the building being guarded; 11 indicates a graphophone or other talking-machine in said building; 12 designates an alarm bell; 13, 13, designate signal lights, each of which is connected with a window-contact; and 14 indicates a combination switch The elements 6, 6, 7, 7 and 10 to 14 inclusive are connected in the circuit'3, 3' and the elements 8 and 9 in. the circuit 3 3 'Fulcrumed between cars 15 on the window casing 7 is a lever16 one end of which lies in contact with or in close proximity to the glass7 of the window 7, its other end adapted to be brought against a contact 17 should the glass be broken or otherwise forced against the end of the lever, which projects to about its central p01 tion. The circuit being thus made, the bell 12'will ring, the connected lamp 13 will be lighted to indicate the room which the intruder is attempting to enter, the buzzer 18 will (if the switch 30 is opened) trip the detent trigger 19 which is pivoted at 20- on ahblock 21 on the element 11, and thus free' t c with the notch 22 of the record-carrying plate 23 of said element 11. It is tobe as-" sumed'that the usual operating mechanism is wound, and that energy is stored therein.

Therefore, instantly upon it being released as above described said plate will impart rotary movement to the record-imprinted disk 24 to operate it in the usual manner and by means, of a needle carried by the arm 25. The disk 24 is one which has been made to reproduce-the sound of a human voice giving the locationof the building in which it is located. The message will be transmitted to the telephone 10, but only point of said'cletent from engagement after a release-pin 26 projecting'from the lower surface of the record-carryihg plate frees a switch 27 from a contact 2"!" to thereby break the circuit. The telephone hook or hook-switch 28 is connected by a cord or string 29 with the switch 27. Said cord is normally drawn taut and holds the receiver hook against the resistance of the usual spring in the telephone box'whereby to maintain the telephone in inoperative position. When the pin 26 moves away it thereby releases the switch 27 from the contact 27, this movement of the switch being occasioned by the action of the telephonebox spring operating said hook and thereby said cord, and the circuit is broken, cutting oil? the bell 12, the light 13 and the buzzer 18.

When the book 28 is released as above de scribed, the central station 8 isautomatically called, by reason of its connection with the telephone 10, whereupon the operator, after receiving the initial or call part of the message (which preferably is several times repeated) originating in the record 23, will make the connection with the police station 9 and the police station operator will be connected directly with the telephone 10 in the building in which the talking-rnachine is placed.

T he combination switch is here shown as a means whereby one familiar with the mechanism, may set the switch to cut out all alarm circuits, by utilizing a particular contact of such switch, and other of the series of contacts provided maintaining the cir cuits in working condition. This arrangement prevents anyone not familiar with the particular switch from cutting out the alarm.

The combination switch 14 comprises a box 32 in which is centrally arranged a knob 33 carrying an indicating pointer 34:. 35 indicates a fiber or wood disk having a central aperture 36 which receives the stem of the knob 33, and 37 indicates a copper rim on said disk, its ends united by a screw 38. 39, 39 indicate switch-blades, secured each at one end, by a screw 40, to said disk 35 and each carrying at its free end insulation ll. 42 indicates a switch-blade secured at one of its ends by a screw 43 to said disk, its free end carrying a contact 44. 42 indicates a spring for holding its free end in position to contact the plate 46. a5 indicates a connection between the blade 42 and rim 37. 46 indicates a copper disk arranged on the bottom of the box lhe current enters said 4.6, and 52 indicates a contact-point also thereon. 53 indicates a switch pivoted on a screw 54 secured to the back of the lOOX 32see Fig. l6and 55 indicates a handle thereon. 56 indicates a dial which in practice bears on its face a plurality of different letters or numerals. 1f the switch 53 is closed and the pointer 3st set at the proper number on the dial, no circuit will be made and consequently no alarm given, for the blade-switch 42 rests on the insulating plate 51, but if the pointer be turned to any other number on the dial a circuit will be established by the spring switch 57 which is secured to the door 6 with contact 58 which is secured to the casing 6 and the result will be the same as was hereinabove described when the circuit was completed by reason of breath ing the glass 7 and thereby actuating the element 16.

59 desi nates a recess in the window casing 7'l igs. 1 and 8-and 60 indicates a similar recess in the sash 7 said recesses be ing normally opposed to each other. 61 designates a contact-point seated in a deeper recess in said casing. 62 designates a yielding switch-blade secured by a screw 63 to said casing and provided with a contact point 6% normally out of contact with the point 61. When the sash is raised it will force the blade 62 and thereby the point 6% inward and the latter will come in contact with the point 61 and complete or make the circuit, the result being the same as hereinabove described when an attempt was made to enter the room by breaking the glass. 65 indicates a switch whereby all the elements in the circuit 3, 3', may be cut in or out thereof. 36 is the receiver of the tele= phone 10.

Any of the switches may be turned to cut off the light, instrument or alarm operated thereby. Additional-wires may be run to connect with any number of windows and doors in the buildin Indeed, a great number of changes may be made both in the details of construction and in the arrangement and organization of the elements entering into my invention, without departing from the spirit and scope thereof. Therefore, without limiting myself to particularities except such as are particularly pointed out, 1 claim as my invention the following, to-\vit-- 1. In a burglar-alarm, an electric circuit, a sound-reproducing instrument, means unintentionally operable by an intruder, for starting said instrument to operate, a telephone including a hook-switch and a receiver normally in engagement with said hook-switch, mechanical means connected to said sound-reproducing instrument, for bolding said hook-switch in inoperative position, means operable by said instrument for releasing said hook-switch, whereby the sound from the instrument will be received by said telephone, and a telephone station associated with said circuit and adapted to receive a call instantly upon said sound-reproducing instrument commencing to operate.

2. In a burglar alarm, an electric circuit, a sound-reproducing instrument, means unintentionally actuable by an intruder, for starting said instrument to operate, a telephone including a hook-switch and a receiver in engagement with said hook-switch, mechanical means connected to said instrument for holding said hoolcswitch in inoperative position, means operable by said instrument, for releasing the last recited element and thereby said hook-switch, whereby the sound from said instrument will be received by said telephone, a telephone station associated with said circuit, and a second station having a telephone adapted to be cut into said circuit.

3. A burglar alarm, comprising a sound reproducing instrument, a telephone transmitter, means governed by the instrument for holding the transmitter inoperative, a circuit, alarms included in said circuit, remote means adapted upon actuation to close the circuit, means operated by the instrument to render the transmitter operative and to open the circuit to cut out the alarms, and

stop mechanism for the instrument governed by the circuit.

4. A burglar alarm, comprising a sound reproducing instrument, a telephone transmitter, a mechanical means governed by the instrument for holding the transmitter inoperative, a circuit, remote means adapted upon actuation to close the circuit, a trip to v be actuated by the instrument and including a switch for the circuit and a connection for the mechanical means formaintaining the transmitter inoperative, and stop mechanism for the instrument governed by the circuit.-

5. A burglar alarm, comprising a sound reproducing instrument, a telephone transmitter, a circuit, remote means for closing the circuit, a. trip to be actuated by the instrument, said trip including a switch for the circuit, and a connection intermediate the trip and transmitter for normally holding the transmitter inoperative, and means governed by the circuit for normally holding the instrument inoperative.

In testimony whereof I hereto aflix my signature, at Galesburg, Knox county, Illinois, this 5 day of August, 1915.

WVILLIS C. REED.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. O.

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