US170905A - Improvement in burglar-alarms - Google Patents

Description

A. SHERMAN.

BURGLARI-ALSRM. No. 170,905. Patented Dec. 7,1875.

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HENRY A. SHERMAN, OF FREMONT, OHIO.

IMPROVEMENT IN BURGLAR-ALARMS.

Specification forming part of Letters Patent No. 170,905, dated December 7, 1875 application filed November 5, 1875.

To all whom it may concern:

Be it known that I, HENRY A. SHERMAN,

of Fremont, in the county of Sandusky and in the State of Ohio, have invented certain new and useful Improvements in Burglar-Alarms; and do hereby declare that thefollowing is a full, clear, and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon, making a part of this specification.

The nature of my invention consists in the construction and arrangement of a combined burglar-alarm and lamp-lighting device, as will be'hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, in which- Figure l is a perspective view of my invention. Fig. 2 is a side view of the same. Figs. 3 and 4 are detached views of parts thereof.

A represents a suitable frame-work, in which is a clock-work, B, for operating a hammer, O, to sound the bell D. a is the escapementwheel of the clock-work, into which works a detent, E, in the form of an L-shaped lever, pivoted at its angle, as shown. On the upper end of the lever or detent E is placed an arm, G, the upper end of which may be connected, by a cord, wire, or its equivalent, with any door or window desired to be connected with the alarm, and in such a manner that, by opening said door or window even very little, the arm will be moved to one side, and the detent released from the escapement-wheel, and the alarm be sounded. In the clock-work B is a shaft, 1), rotated thereby, on the upper end of which shaft is a socket, d, with projecting arm 0, as shown. H represents an ordinary lamp, provided on its top with an anvil, h, which is beveled at its upper end. A suitable distance from the lamp H is journaled a curved hollow arm or holder, I, operated by a spring, 6, coiled around one of the journals,and inclosed within a case, J. In the holder I is inserted a match, k, of the kind known as the parlor-match, and the match and holder held in the position shown in Fig. l by one end of a pivoted lever. L.

When the alarm is sounded,as above described, the shaft b rotates, carrying with it the socket d and arm 0. This arm,during its first revolution, comes in contact with and turns the lever L, so that it will clear the match is. The springi then throws the holder and match over, so that the head of the match will strike the anvil h and be ignited by the concussion, the holder, however, being stopped by a post, m, having a screw, 'n, in its upper end, against which the holder strikes, whereby the match is prevented from being broken. By means of the screw 11. the force of the blow of the match-head on the anvil is easily regulated. The ignition of the match immediately lights the lamp-wick.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. The combination, with a clock-work, B, and alarm-bell D, of the shaft b, socket d, and arm 6 for operating a lever, L, a spring matchholder, 1, and lamp H, with anvil h, substantially as and for the purposes herein set forth.

2. The combination of the journaled matchholder I, spring '5, and case J, for the purposes herein set forth.

3. The post m, with adjusting-screw n in its upper end, in combination with the matchholder I and spring 2', substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 18th day of October, 1875.

HENRY A. SHERMAN. Witnesses:

M. E. TYLER, J. P. REIFF.

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