US330942A - Zyecificatiojnt - Google Patents

Description

(No Model.)

B. T. TRIMMBR.

BURGLAR ALARM.

No. 330,942. Patented Nom-,24, 1885 @y 77mm@ UivrTeiu hTaTns PATENT Orti@ a c BENJAMIN T. TRIMMER, OF WEST BLOOMFIELD, NEV YORK.

BURGLAR-ALARW.

"E'ZCFICATIN forming part. of Letters Patent No. 330,942, dated November 24, 1885.

Application filed June 21, 1884.

To ctZZ whom/it may concern,.-

Beit known that I, BENJAMIN T. TRIMMER, a citizen of the United States, residing at West Bloomfield, in the county of Ontario and State of New York, have invented certain new and useful Improvements iu Burglar-Alarms, of

-which the following` is a specification, reference being had therein to the accompanying drawings.

Thisinvention has relation to burglar-alarms of that class known as detonatingg and it consists in certain features of' construction hereinafter described, and specifically set forth in the claims.

Referring to the drawings, Figure lis a perspective, Fig. 2 is a central vertical section, and Fig. 3 a bott-om plan, of a burglar-alarm constructed in accordance with my invention. Fig. 4 illustrates one manner of using the same.

Like letters refer to like parts in all the iigures.

" rIghe principal object iu View, and the principal result attained by my invention, is a succession of detonations or reports, in order that in case the first should fail to waken the occupants of the house the succeeding ones will do so, and the repetition of reports will also resemble successive shots of a revolver, and thus serve to intimidate intruders.

Although the objects and advantages of my invention are as set forth, still certain features of construction hereinafter described may be employed in alarms where but one explosion occurs when it is brought into action, and I therefores0 far as regards said features, do not limit myself to an alarm adapted to give a succession of reports.

A main case or shell is employed, and is constructed in two sections, A A', each being like the other, excepting in the construction of the hinge-joint uniting the two, which comprises a projecting lug, B, upon one vof the sections, and a recess, B, formed in the other to receive said lug, so that a pintle, B2, when passed through the lugs and the walls of the recess, serves to pivotally connect the two sections together. The upper half of the case is Upon the neck is pivoted at A5 a Serial No. |3.`),Gl1. (No model.)

closing-hook, A, which is adapted to embrace a pin, AT, upon the opposite section ofthe case, and which is provided with a suspensionring, AS, whereby the two sections are secured in a closed position, and at the same time adapted to be suspended, and so far as the closing of the sections is concerned the suspension-hook may be relied upon, and in that case the ring A* may be dispensed with.

The lower half of the case is thicker and heavier than the upper half, and is provided with a series of chambers, A", adapted to receive cartridges or shells C. A similar recess or chamber', A, may be formed in the neck portion A-that is, one-half of the chamber being formed in each section ofthe case, as is the chamber located in the lower portion thereof. In this instance six chambers are formed in the case, one at the top, one at the bottom, and four at the central portion of the case.` all of the chambers opening inwardly, and provided with means for exploding cartridges arranged therein.

The cartridge employed may be either a center or a rim fire cartridge, or such as are tired by means of fuses projecting therefrom. When acentralfire cartridge is used, the firingpin D is suspended opposite the center of the cartridge-chamber, either upon a spring, D

or upon a ring, E, the former construction being preferably employed in connection with the lower chamber in the case, cach half of the case heilig grooved, as at A10, to receive the flange of the cartridge. The same construction is employed in the neck portion of the case. The recesses or chambers at the central portion of the case are arranged radially, and may be provided with nipples, as F, upon which a percussion-cap may be placed, by which to explode a cartridge in the chamber, or a firing-pin may be carried mounted in the bore of said nipple in order to explode a cartridge; or the fuse, as G, may be arranged in the cartridge to project toward the center of the case and to be ignited by the explosion of the first cartridge in the case. In case a nipple is used, the ring E is employed to eX plode the cartridge, said ring being supported upon brackets A, cast upon the case and retained upon the brackets by means of wire spring or springs I-I, extending from the top IOO of the-ring through oppositely-arranged openings .between the ribs A2, and from thence to the upper surface of the ring at an opposite side of the case, when by simply removing the spring H the ring may be removed upwardly from the brackets for the purpose of applying caps to the nipples. The ring E is of larger diameter than the case, and is simply held upon the brackets bythe wire spring H, so that the ring is capable of movement to and lfrom the outer walls of the case upon the brackets.

rlhis being the construction, the operation is as follows: The alarm may be suspended by` means ofa cord or wire attached directly to the suspension-hook A8, and detachablyconnected with a door or window of the apartment or building, which may be eithera barn, smokehouse, hen-house, or any other building, so that when said door or window is 'opened the alarm will fall tothe Hoor and, the lower portion of its case being the heaviest, in falling it will maintain an upright position and bring the firing-pin D suddenly and forcibly in contact with the iioor, whereby the cartridge in the lower chamber will be eX- ploded. Now, in case fuses G are employed the flame from the rst cartridge will ignite said fuses, and the length of the same will determine the order of succession in the explo sion of the remaining cartridges. When percussion-caps are employed in exploding the cartridges, then as the alarm comes in contact with the floor the first explosion is caused by said contact directly, the tiring-pin coming in contact with the cap in the lower cartridge and the explcsion of said cartridge in reacting against the case will throw it about the apartnient and cause it to fall so as to strike the ring E in such a manner that one or the other of the centrally-arranged cartridges would be exploded by reason of the lateral movement of the ring upon the brackets, and the ex'- plosion of said cartridges would in a like manner probably explode the others. As there is undoubtedly possibility of afailure to explode some of the centrally-arranged cartridges by means of the ring, fuses G would perhaps be the preferable means for causing` their eXplos'ion, and therefore I do not limit myself to the employment of the ring E for such purpose.

By reference to Fig. 4 a preferred form of suspension will be seen, which is to support the alarm upon a bell-crank lever, I, pivoted to any suitable part of the building, one arm of the lever being connected by a cord, J, to

a strap, peg, or any other suitabledevice, K,

which can be inserted between a door, L, and its casting in such a manner that when a door, or it may be a window, is opened the device K will be released, and the weight of the alarm will cause the bell-crank lever to oscillate and permit the alarm to fall to the floor.

Having described my invention and its operation, what I claim isl. A burglar-alarm consisting of a spherical casing provided with a series of radial chambers and a surrounding ring with means, substantially as specified, 'for successively exploding the cartridges therein.

2. A burglar-alarm of the class described, comprising a shell or case formed in two sections, each of which has formed therein onehalf of a cartridge-chamber, substantially as specified.

3. A burglar-alarm of the class described, comprising a case formed in two sections, pivotally secured to each other at their lower ends, and provided at their upper ends with a uniting hook having a suspension-ring, substantially as specified. p

4. The alarm-case consisting of the sections A A', provided with the hinge B B' B2, and with a suspension-hook, A6, having the eye A", and the iring-pin D. mounted upon spring D', and provided with the cartridge-chambers A9, arranged as described.

5. The combination of the section A, provided with the lug B, the spring and pin D D', and the half-chambers, with the section A', provided with the pintle B2 and lug B', substantially as shown and described.

6. The case A A', provided with a centra radial series of cartridge chambers, A, and with the lower chamber A9 the spring-sup ported ring-pin D, and the ring E, mounted upon the brackets A, substantially as shown and described.

7. The combination of the case A A', having the brackets A11, and, central radial cartridge-chambers, with the ring E and spring H, substantially as shown and described.

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

BENJAMIN T. TRIMMER.

Witnesses:

E. E. Masson, L. C. HILLs.

IOO

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