US74779A - Improved euegub-alabm - Google Patents

Description

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Lena; Patent N2. 74,779, ma February 25, 186s.

IMPROVED BURGLAR-ALARM.

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TO ALL WHOM IT MAY CONCERNE v Be it known that'I, ISAAC M. WELLS, of Jeffersonville,- Fayette county, State of Ohio, have invented a new and useful ImprovedBurglar-Alarm; and I do hcrcbydeclare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference heilig had to the ,accompanying drawing, forming part of this specification.

This invention relates to certain improvementsin 'burglar-alarms, designed chiefly to be applied to the alarm for which Letters Patent of theUnited States were granted to me, on the 11th day of June, 1867. The oper; ating parts receiveA motionY from springs and gearing analogous to clockwork; the springs being wound up by a key in customaryananuer. 4

My presentimprovemen ts consist, h'rst, in a novel device for ignitng a friction-match, for affording temporary illumination or lighting a lamp; second, in combining the match-igniter with the winding-up key of the apparatus, so that the former is rotated by the key which is mounted upon the main spring-shaft, when the alarm is Vset; third, in a match-holder of peculiar construction; fourth, in the combination with the match-holder 4of a fuse, for exploding the charge of a pistol or pistol-barrel. In thev drawings- Figure `1 is a perspective View of a burglar-alarm, illustrating my invention. Figure 2 is a horizontal section, showing the impelling-mechanism. Figure 3 is a detached view. y v Similar letters o reference indicate corresponding parts in the two hgures -Ithe drawings, A represents a box or case, .in which the several operatin'gparts are mounted. B b rep.

resent a devicerwhich sustains a friction-match, c, in position to have its igniting-end acted upon by the rotating segment, C.` A lamp, D, may bevsnpported upon the-horizontal partition A', and may be held, by a suitable fastening, in such position that the llame of the match c will reach and ignite its wick. The standard EB ofthe match-holder is held between the side 'of .the box A and the partition A', and has a shoulder midway between its ends, resting upon V'the partition A', the lower end of said standard being stepped into a recess in the bottom of the casing.. The plain end of the match is supported in a holerin the standard B, while its iguiting-end is supported by thevarm b, which projects fromthe standard B, -to which it is attached, and which may consist of an elastic piece of wire, or4 a strip of metal adapted to yield somewhat to the pressure of the lrevolving segment C. `The end of thearm b isbent, to form aorest forthe end yof. the match, as shown. The sides, c, of the segment Csare 4roughened with a'coating of' sand or vitreous matter, or otherwise, so that when said segment rotates upon its 'vertical axis E, the frictional contact of its sides with the end of the match produces the igni tion of the matchfcomposition. A lamp, D, may be employed, as above described, to produce a more permanent light, but, as -the temporary light of the match might be sulieient, and preferable in some instances, the lamp is not regarded as ein` essential part. The keyby whichthe shafts F F (see 2) are rotated to wind' up the i 'main-springs G'G, formsthe axis E, upon which the match-lighter C rotates. The match-lighter O is provided in its under side 'with a slot or elongated narrow opening; to receive the head of the key. When'thekey is to be used for winding up the springs G G', the match-lighter can be reddily detached therefrom, if desired. The

power which is stored up in the-springs-G G', by the rotation of the shafts F Fi', to which said springs. are attached, is conscrvedvby the engagement of ther'pivoted catehesHrll with the wheel-work fj. Attached to the catches H H are cords, -I I, which are connected with a movable disk, d, in which is sockcted the lower end of a post, K, which carries at top a disk, L, studded with pins, Z, for the attachment'of cords or other conne tions, which are also attached 4to doors or windows. A I i M may represent xa pistol or pistol-barrel, and N a fuse inserted into the touch-hole thereof, and extending thence through the eye or rest in the end of the arm b of the match-holder. The alarm being set, the latches n n are turned aside, so as to permit the clutches H H to be 'retracted from the wheel-work, through the medium of `the device I J K L Z m, whenever a door or window maybe opened. When this happens, the shafts F F are rotated by'nthcir r'espeetivesprings G G', and the key E being mounted upon its shaft, F, is rotated therewith, and carries round with it the segment C, whose roughened surface ignitesthc match c. The match' lights the lamp, and ignites the fuse to esplode the pistol-charge. O is an escapement-levcr, attached to the shaft o of which is the clapper P, which is caused to rapidly strike the bell Q by the motion of said escapement, derived from the wheels f, which are released and putin motion simultaneously with the wheels f. The bell'and the devices for ringing the same-are seen in my previous patent, hereinbcfore referred to. The rotation of the segment C is arrested after one or more turns by the device shown in tig. 3. The disk R is keyed to the shaft F, and has a. stop or projection, 7', corresponding with notches s s, in the rotary plate S, whichis attached by a central pivot tofthe upper side oi' the top plate of the wheel-work f. In winding up the springr G, the disk R turns from left to right, and the notchess, which receive the projection 1', and adapt R and S to rotate simultaneously, enable the disk R to be turned round as many times as there are notches in said plat-e S, but when, after engaging with both (or all) the notches consecutively, the projection r comes' in contact with the cnt-er periphery of the plate S, thefurther rota-tion of disk It is prevented. n like manner, when the matchlighter C is actuated bythe spring G, its motion' is arrested at a given pointby'the contact of the projection r with the outer edge of the plate S, as shown in iig. 3, said projection having engaged with one or more of the notches s, and the match-lighter C turned onev o r more times, according to the number oi'l complete turns givenv I the disk R'in winding up. 'lhc spring G maybe ivound up to a greater or less extent, according as it is desired to rotate the match-lighter one or more times. 1 v

Havingthus described my invention, what I claim as new herein, and desire to secure by Letters Patent, isl. The rotary match-lighter C, applied to a burglaralar1n, and operating by a complete revolution, substantially in the manner land for the purpose described.' l

2. The combination of the match-lighter C with the key E, substantially as and for the purpose described. S. Thematch-holder l) b, mounted inthe box A A, and arranged and operating substantially as described.

4. The combination, with the 4match-holder B b, of the fuse N, as and for the purpose setl forth.

To the above speciiieation of my new and useful improved burgler-alarm, I have signed my hand, this 29thv day of July, A. D. 1867.

IsAAc M. WELLS.

Witnesses:

J. E. LNI. BOWEN, Cuirs. D. SMTn.

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