US597128A - George a - Google Patents

Description

(No Model.)

G. A. TOWNSEND.

FIRE ALARM.

No. 597,128. Patented Jan. 11,1898.

WI TNESSES.

UNITED STATES PATENT FFICE.

GEORGE A. TOWNSEND, OF UTIOA, NEXV YORK, ASSIGNOR OF ONE-HALF TO FRANK P. BAKER, OF SAME PLACE.

FIRE-ALARM.

SPECIFICATION forming part of Letters ."Patent No. 597,128, dated January 11, 1898.

Application filed May 18, 1897. Serial No. 637,038. (No model.)

T0 at whom it may concern:

Be it known thatI, GEORGE A. TOWNSEND, a citizen of the United States, residing at Utica, in the county of Oneida and State of New York, have invented certain new and useful Improvements in Fire-Alarms, of which the following is a full and complete specification, such as will enable those skilled in the art to which it appertains to make and use the This invention relates to firealarms; and the object thereof is to provide an electric fire-alarm which is adapted to be used in buildings of various kinds and classes, and particularly in dwellings and the various rooms or compartments thereof.

The invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in which- Figure 1 is a sectional side view of the device which I employ, the electrical connections being omitted; Fig. 2, a section on the line 2 2 of Fig. 1, showing also the electrical connections; and Fig. 3, a perspective view of a detail of the construction.

In the drawings forming part of this specification the separate parts of my improve ment are designated by the same numerals of reference in each of the views, and in the practice of my invention I provide a device of the class herein specified, which consists of a base-plate 5, which is adapted to be secured to any suitable support, and secured to or formed on the opposite sides of said base-plate are supports or standards 6 and 7 which are connected at their tops or outer ends by a curved plate S,to theunder side of which is secured,at one end thereof,a spring 9.

The support or standard 6 is provided at its opposite side with inwardly directed flanges 10, and pivoted between said flanges 10, near the upper or outer ends thereof, as shown at 11, is an arm 12, and secured to or connected with the inner side of the standard or support is a supplemental plate 13,to which is soldered an angular support let, on which the free end of the pivoted arm 12 rests.

The angular support 14 is connected with the supplemental plate 13 by solder, which will melt under a comparatively low degree of heat, and the supplemental plate 13 is connected with the plate or arm 7 by means of a prong 15, which is formed thereon and which passes through a slot or opening in the arm or plate 7, as clearly shown in Figs. 1 and 2. I also provide an oblong plate 16, which is connected with and insulated from the baseplate 5, this connection being made by means of a screw 17, and said screw is insulated from the supplemental plate 10, as clearly shown in Fig. 1, and the plate 10 is provided at one end thereof with an upwardly-directed arm 17, which is provided with a binding screw or post 18, and atits opposite end with an angular arm 19, which will serve to arrest the downward movement of the pivoted arm 12 when the support 14- is disconnected from the plate 13.

One of the flanges 10 of the upright plate or arm 6 is also provided with a bindingscrew 20, and in Fig. 2 I have shown a battery 21, which is connected with said binding screw or post 20 by a wire 22, and with the binding screw or post 18 by means of a wire 23, and in the circuit thus formed is placed an electric alarm or hell 24., and the operation will be readily understood from the foregoing description when taken in connection with the accompanying drawings and the following statement thereof.

The pivoted arm 12 is normally supported in the position shown in Fig. 1, and the spring 9 bears thereon, and if at any time this de vice should become heated to a degree sufficient to melt the solder by which the support 1% is connected with the plate 13 the pivoted arm 12 would drop onto the angular arm 10 of the plate 16, or to be forced into connection therewith by the spring 9, and the circuit would be completed through the battery 21 and the alarm or bell 2A1, and said alarm would be sounded, as will be readily understood.

This device is simple in construction and op eration and is perfectly adapted to accomplish the result for which it is intended, and said device is also comparatively inexpensive and may be used wherever electrical alarms of this class are requirechand it will be apparent that changes in and. modifications of the construe tion herein described may be made Without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, 1 claim as new and desire to secure by Letters Patent An alarm of the character described comprising a base-plate 5, adapted to be secured to a suitable support and provided with standards 7, which are connected at the tops or outer ends by a curved plate 8, a spring 9 secured to the under side thereof, said standard 6 being provided with flanges 10, an arm 12 pivotally mounted in said flanges, a sup plemental plate 13 secured to the said standard 7, an angular support 1i soldered thereto on one arm of which the free end of said pivoted arm 12 is adapted to rest, the solder forming the connection between said plates 13 and 14c being adapted to fuse at a predetermined degree of heat, an oblong plate 16 secured to and insulated from the base-plate 5 and provided at one end with an arm 17-", a binding-post 18 mounted thereon, said plate 10 being provided at the opposite end with an angular arm 19 adapted to engage the said arm 12 when not engaged by the said angular arm a binding-screw secured to one of said flanges and wires connecting said bindingscrews with a battery and with an electric arm, substantially as and for the purpose described.

In testimony that I claim the foregoing as i'nyinvention I have signed my name, in presence of the subscribingwitn esses, this 7th day of May, 1897.

GEORGE A. TOWNSEND.

\Vitnesses:

CHAS. A. liiol innuan, FRANK PATRICK BAKER.

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