Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1199654 A
Publication typeGrant
Publication dateSep 26, 1916
Filing dateJun 18, 1915
Priority dateJun 18, 1915
Publication numberUS 1199654 A, US 1199654A, US-A-1199654, US1199654 A, US1199654A
InventorsFern R Bailey
Original AssigneeFern R Bailey
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Circuit-closer for fire-alarm systems.
US 1199654 A
Previous page
Next page
Description  (OCR text may contain errors)



1 1 99,654 Patented Sept. 26; 1916.




Specification of Letters Patent.

Patented Sept. 26, 1916.

IA'pplication filed June 18, 1915. Serial No. 84,911.

To all whom it may concerni- Be it known that I,' FERN R. BAILEY, a citizen of the United States, residing at Manzanola, in the county of Otero and State of Colorado, have invented new and useful Improvements in Circuit-Closers for Fire- Alarm Systems, of which the following is a specification.

This invention relates to improvements in fire alarm systems and has particular application to an electric fire alarm system.

In carrying out the present invention, it is my purpose to provide a fire alarm system which will embody in its construction, among other features, circuit closers and cords holding the circuit closers normally in position and adapted to release the same when burned so that the alarm circuit controlled by the circuit closers will be. closed, the cords forming connections between the circuit closers.

It is also my purpose to provide a fire alarm system wherein by means of charges of powder associated with the respective circuit closers, and fuses leading to such charges of powder and disposed along the -walls and beneath the floors of a building,

the circuit closers may be actuated to closed position by the explosion of the charges of powder upon the igniting of the fuses.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter set forth in and falling within the scope of the claim.

In the accompanying drawing; Figure 1 is a view in side elevation of one of the (Sircuit closers employed in my system. Fig. 2 is a longitudinal sectional. view therethrough. Fig. 3 is a cross sectional view through the same. Fig. 4 is a diagrammatic plan view of the system.

Referring now to the drawing in detail,

each circuit closer is indicated as an entirety by the numeral 1 and comprises a substantially rectangular casing 2 constructed of metal or other suitable material and having the end walls thereof formed with pairs of alining openings 3, 3, 4, 4 and 5, 5. Suitably secured within the casing 2 adjacent to each end thereof are tubular containers 6 and 7 and the containers 6, 6 aline with the respective openings 3, 3, while the containers 7, 7 are coaxial with the openings 5, 5 respectively. Disposed in axial alinement with' the openings 4, 4 respectively and suitably fastened within the casmg are tubular containers 8, 8. Disposed within the confronting ends of the respective containers 6, 6 are plugs 9, 9, while arranged within the similar ends of the containers 7, 7 are plugs 10 respectively and I tainers 6, 7 and 8 at one end of the casing 2 are insulated therefrom and from each other and are electrically connected by way of a wire 14 with a binding post 15 secured to the outer surface of the casing and insulated therefrom and connected to the casing adjacent to the binding post 15 and in contact with such casing is a second binding post 16.- The binding posts 15 and 16 of each circuit closer are connected across the legs of an alarm circuit 17 including a suitable source of electrical energy as a battery 18 and an alarm 19 preferably in the form of a bell. The outer ends of the plungers 12 of the respective circuit closers are connected ,in series with each other by means of cords 20. Secured within the respective containers 6 are the ends of fuses 21 extending along the walls and under the floors of the protected structure.

In practice, should any one of the fuses 21 become "ignited, such fuse-will burn and explode the powder charge in the particular receptacle, thereby forcing the plug 9 in such receptacle into engagement wlth the companion plug 9 with the effect to close the circuit 17 and so sound the alarm 19. Should one or more of the cords 2O become ignited and part the springs 13, upon being relieved of the influence of such cords, will react and slide the plungers 12 into engagement with each other, thereby bridging the circuit 17 and sounding the alarm.-

While I have herein shown and described one preferred form of my invention by Way of illustration, I wish it to be understood that I do not limit or confine myself to the precise details of construction, herein doscribed and delineated, as modification and variation may be made within the scope of the claim without departing from the spirit of the invention.

I claim:

A circuit closer comprising asubstantially rectangular casing having the end walls thereof formed with alining openings, containers secured to the respective end walls of said casing concentrically of the openings therein, plugs in the confronting ends of said containers, powder charges in said containers behind the respective plugs, cir- 'euit connections for said containers, and

fuses extending through the openings in the end Walls of said casing and embedded in said powder charges and adapted when ignited to explode the powder charges whereby said plugs will be moved into engagement with each other to close the controlled circuit.

In testimony whereof I afiix my signature in presence of two witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2429817 *Nov 4, 1944Oct 28, 1947Pennsylvania Railroad CoHot bearing box detection means
US2463745 *Nov 6, 1946Mar 8, 1949John ColardoAlarm for fire detection
US2745926 *Jul 28, 1951May 15, 1956Mullally Vernon PFire alarm apparatus
US2898426 *Jun 27, 1958Aug 4, 1959W J AmburgeyFire alarm
US2920166 *Jan 11, 1950Jan 5, 1960Ronald GeballeSquib switch
US4259656 *May 11, 1979Mar 31, 1981Illinois Tool Works Inc.Thermal cut-off device with an activating spring that is held in a prestressed condition by a thermally fusible pellet
US4339638 *Oct 15, 1980Jul 13, 1982Mcdonnell Douglas CorporationElectrical switch
U.S. Classification337/412, 337/409, 340/638
Cooperative ClassificationG08B17/06