US1030138A - Burglar-alarm. - Google Patents

Description

W. G. SPIEGEL.

BURGLAR ALARM. APPLICATION FILED MAR.31,1910.

Patented June 18, 1912.

COLUMBIA PLANOGRAPH co WASHINGTON, D. C.

WILLIAM GEORGE SPIEG-EL, OF

NEW YORK, N. Y., ASSIGNOR TO FRED OPI ENHEIMER,

OF NEW YORK, N. Y.

BURGLAR-ALARM.

Specification of Letters Patent.

Patented June 18, 1912.

Application filed March 31, 1910. Serial No. 552,656.

To all whom it may concern:

Be 1t known that I, WILLIAM G. SPIEGEL, a citizen of the United States, residing at New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Burglar-Alarms, of which the following is a specification.

The present invention relates to burglar alarms, and the object is to provide a simple compact device of this character that can be readily carried in the pocket, and can be mounted in operative position upon any supporting surface, such as a door or frame without the necessity of employing screws or other fastening devices that would mar the woodwork.

A further and important object is to provide alarm mechanism, in the form of cartridge-exploding means, and to employ in connection therewith a receiver for the cartridge wads, sparks and products of combustion so as to eifectively prevent any danger of the same igniting adjacent articles.

The preferred form of construction is illustrated in the accompanying drawings, wherein Figure 1 is a view partially in elevation, and partially in section of the alarm. Fig. 2 is a detail longitudinal sectional view through the base, illustrating one manner of mounting the vacuum holder thereon. Fig. 3 is a sectional view through another form of construction. Fig. 4: is a plan view of the vacuum holding device illustrated in Fig. 3.

Similar reference numerals designate corresponding parts in all the figures of the drawings.

In the embodiment illustrated, a base is employed having an opening 6 therethrough. In this opening is fitted a vacuum holding de vice in the form of a rubber or other elastic cup 7 having an open side disposed on one side of the base and having a central projection or knob 8 arranged on the opposite side. This cup may be mounted in various ways. Thus in Fig. 2, said knob is provided with an annular flange 9 having a peripheral groove 10 therein that receives the edge walls of the opening 6. In Figs. 3 and 1, the cup, which is designated 7 has an annular flange 9* provided with a plurality of projections 1O that are forced into sockets in the base.

Secured to the lower margin of the base,

is an open ended barrel 11, one end of which is designed to receive a cartridge 12, while detachably fitted on the other end is a sleeve 13 preferably of rubber or other elastic ma terial. Secured to this sleeve in any suitable manner is a receiving receptacle or bag 14.- preferably of fire-proof material. A hammer 15 is pivoted as shown at 16 upon the upper portion of the base, and is provided with a projection 17 that will strike the cartridge 12 to explode the same. A spring 18, connected to said hammer and surrounding the pivot 16, constitutes means for swinging said hammer against the cartridge. This hammer furthermore has an actuating knob 19 and a projection 20, the latter of which is arranged to engage a door jamb J to hold the hammer against move ment.

In using the device, the base is placed upon a supporting surface (as a door D) at the desired point, and the cup is compressed 'to produce a partial vacuum therein, so

that the air pressure will maintain the base in place. A cartridge having been introduced into one end of the barrel, the bag is fitted upon the other end, and the hammer is then moved against the action of the spring until the projection 20 is engaged with the door amb J. The parts will thereupon be in the position shown in Fig. 1, and will retain this position until the door is opened, whereupon the hammer being released, will swing around, and the projection 7 will strike the cartridge, exploding the same. The contents of said cartridge will of course be delivered through the barrel 11 into the bag 14., and the force of the explosion may detach said bag from the barrel. In any event, however, the products of combustion will be received in said bag or other receptacle, and consequently do no in-' jury nor can they ignite any adjacent articles of inflammable material.

From the foregoing, it is thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art, without further description, and it will be understood that various changes in the size, shape, proportion and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus fully described my invention, hammer pivoted to said base and arranged what I claim as new, and desire to secure by to have a movement over that end of the Letters Patent, is barrel which holds the cartridge.

A burglar alarm comprising a base hav- In testimony whereof I hereunto aflix my 5 ing supporting means for engagement with signature in the presence of two witnesses. 15

a fiat surface at any point, an open-ended WILLIAM GEORGE SPIEGEL barrel carried by said base and arranged to receive a cartridge in one end, a combustion Witnesses:

and flame-smothering bag fitted to the other S. B. GooDALE, 10 end of said barrel, and a spring actuated J. WV. SMITH.

Copies of this patent may be ehtained for five cents each, by addressing the Commissioner of I'aizen Washington, D. G.

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