US1366855A

US1366855A - Burglar-alarm for automobiles

Info

Publication number: US1366855A
Application number: US379664A
Authority: US
Inventors: William S Wills; Robert A Rogers
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-05-07
Filing date: 1920-05-07
Publication date: 1921-01-25
Anticipated expiration: 1938-01-25

Description

W. S. WILLS AND A. ROGERS.

BURGLAR ALARM FOR AUTOMOBILES.

APPLICATION FILED MAY 7. 1920.

1,366,855. Patented Jan. 25, 1921.

3 SHEETS-SHEET I.

INVENTORS V 37M I ATTORNEY W. S. WILLS AND R. A. ROGERS.

BURGLAR ALARM FOR AUTOMOBILES APPLICATION FILED MAY 7. I920.

Patented Jan. 25, 1921.

3 SHEETS-SHEET 2.

INVENTORS BY W l min A TTORNE I W. S. WILLS AND R. A. ROGERS.

BURGLAR ALARM FOR AUTOMOBILES.

, AFPLICATION FILED MAYI. I920. 1,366,855.

Patented Jan. 25,1921.

3 SHEETS-SHEET 3.

INVENTORS. BVW a? A TTORNE Y UNITED STATES PATENT OFFICE.

BUItGLAB-ALARM FOR AUTOMOBILES.

Specification of Letters Patent.

Patented Jan. 25, 1921.

Application filed May 7, 1920. Serial No. 379,664.

' To all whom it may concern:

Be it known that we, VILLIAM S.'lVILLs and ROBERT A. Rooms, citizens of the United States, and residents of Oklahoma city, in

the county of Oklahoma and State of Oklahoma, have invented certain Improvements in Burglar-Alarms for Automobiles of which the following is a specification, reference being bad to the accompanying drawings.

The object of the invention is to provide means for giving an alarm when an unauthorized person attempts to start an automobile.

Figure 1 of the drawings is a plan view showing one of thepractical forms in which the invention may be embodied.

Fig. 2 is a sectional view taken on the line 2-2 of Fig. 1, but showing nothing but an inclosing casing and the contained parts of a combination lock mechanism.

Fig. 3 is a plan View of the bottom of the incl osing casing,

Fig. 4 is an inverted plan view of the upper or cover p'ortionof the casing and the parts contained therein.

Fig. 5 is a fragmental reproduction of Fig. 4, but shows a difierent position of cer' tain parts.

Fig. 6 is a similar view, but shows still another position of said parts. I

Fig.7 is a sectional view taken on the line 7--7 of Fig. 6.

Like characters of reference designate like parts in all the figures.

For convenience of this description. certain electric switches and an electric bell are represented by the usual electric symbols and shown mounted on bases of materialwhich properly insulate them from other parts.

Batteries and other sources of current which do not require specific description are omitted from the drawings.

In carrying out the object stated, there is provided a casing 10 strong enough to pr0- tect locking mechanism and electric switches, and this casing is adapted to be attached to some suitable part of the automobile in such manner that it cannot be readily removed.

The casing 10 includes a bottom 11 and top 12, the latter having integral side walls 13 and

end walls

14 and 15 which. fit the rabbeted edges 16 of the bottom.

The bottom 11 and top 12 are secured together by screws 17, and any suitable means may be provided for rendering the heads 18 of these screws inaccessible to unauthorized persons.

At one corner of the interior of the easing 10 the tumbler mechanism of a combination lock is arranged.

' In arranging this tumbler mechanism, a depending annular seat 19 is cast integrally with the cover 12, and a supporting base 20 is secured to the lower face of said seat by screws 21.

This base 20 is provided centrally with the usual pivotal stud 22, on which disks or tumblers 23 are mounted to revolve, each tumbler being provided at its edge with the usual notch 24.

A knob 25 is mounted on the outer surface of the top 12 with its spindle 26 journaled through said top and concentric with the stud 22, the inner end of the knob spindle 26 being provided with a disk 27 which is itself provided with an edge notch 24 and serves as a tumbler.

The disk 27 and the tumblers 23 are provided with the usual face studs 28, so that by revolving the knob 25 the notches 24 of the tumblers may be alined.

In further arrangement, a switch-operating bar 29 is mounted slidably in the casing 10 on a line preferably intersecting the pivotal axis of the tumblers 23, the end of this bar adjacent said tumblers being guided by a bearing 30 on the cover 12 and the outer end being guided by passing through the wall 15.

lVith the bottom 11 and top 12 of the easing 10 assembled, a stud 31 on the bottom forms a separable portion of the bearing 30 in guiding the bar 29; and in order to allow the end of the bar to enter the notches 24 of the tumblers 23 and disk 27 an opening 32 is provided in the seat 19.

The electric switch 33 of the ignition circuit. or one or more of the other switches used, may be contained in the casing 10 and secured to a block 34 mounted on the cover 12, this switch being operated by the bar 29 through a suitable connecting-rod 35.

The wiring 36 from this switch 33 may lead out of the casing 10 through a suitable protecting conduit 37.

T 0 close the switch 33, the combination of the tumblers 23 is first worked to aline the notches 24 in position to receive and clear the end 38 of the bar 29; then the may be thrust inward by pressing against its outer or knob end 39, and will close the switch 33.

In arranging for the operation of mechanism for giving an alarm when a trial move ment of the bar 29 is attempted, the end of said bar, in its locked or initial position shown in Fig. 4, is space far enough from the tumblers 23 to allow a limited portion of its full switch-throwing stroke be fore being positively stopped by said tumblers.

The alarming mechanism includes a spider 40, which is pivoted on a stud 41 supported by the top 12.

This spider 40 is HOVldGCl with an arm 42 in the outer end or which a small roller 43 is pivoted.

- The V-shaped end 44 01"- a leaf spring 45, which is secured torthe wall 15, rests yieldably against the periphery of the roller 4, and when a dead center line BB through the pivot of said spider and the pivot of the roller V-sha 38d end 44 in either direction the spider flips to the limit of its throw in said direction.

A second 46 of the spider 40 projects along the bar 29 and, with the bar at the outer extreme of its throw as in 4, rests slidably against a stop 4-? on said under the influence of the spring hen the bar 29 pressed in against the tumblers 23, in an attempt to feel for the alinement 01"- said tumblers, the stop 47 on the bar is carried to where the arm 46 of the spider 40 drops in behind it into the position shownin Fig. 5 under influence of the spring 45.

A switch 48, supported on a block 49 se cured to the cover 12, is operatively connected to the arm 46 through a connecting rod 50, so that the droppingin movement of said arm 46 closes said switch and completes circult through a bell 51.

The wiring 52' for the'hell 51 may lead from the switch 48 out of the casing 10 and through the conduit to a proper source of current.

The face 53 of the stop 47, on the line of length of the arm 46 that no withdrawing force exerted on the bar 29 can swing said arm out in a direction to open the To swing the arm 46 outward and open the switch 48, the tumblers 23 and disk 27 may be alined by the person knowing the combination, and the full switch-throwing stroke of the bar 29'may be completed; and in completing said stroke a second stop 54 on said bar engages a short arm 55 on tire spider 40 and swings saidspider to where it will flip to the extreme position shown passes the contact point of said in Fig. 6, this movement 01" the spider opening the switch 48 and stopping the action o1 the bell 51.

li ith the ignition switch 33 thus closed, the automobile say be driven away; or if it is not desired to so use the vehicle the bar :29 may be drawn outward. its full throw to open said switch; and during this outward movement of the bar a third stop 56 thereon engages the arm 55 of the spider 40- and swings said spider to where it will flip its arm 46 into contact with the stop in the initial position shown in Fig. 4 and thus open the switch 48 of the bell 51.

After the bar 29 has been withdrawn to this position, the tumblers 23 and disk 27 may be thrown out of alinement by use of the knob 25 as in other combination locks.

In order that the three stops 47, 54, and may be adjusted in position on the bar they may be in the form of tight-fitting nuts which are screwthreaded and engage screw threads on said bar.

The following is claimed 1. In a device of the class described, an int-losing casing, a member manually movable in the casing and adapted to control a, switch, releasably locking means in the casing adapted to positively stop switch-controlling movement of said member at a point intermediate its "full stroke, a stop on the movable member, a spring actuated detent pivoted in the casing and lying in slidable contact with said stop, said detent being adapted to drop, behind said stop upon an initial movement or" said member, and means whereby oropping movement of the detent sounds an alarm.

2. In a device of the class described, an inclesing casing, a member manually movable in the casing and adapted to control a. switch, releasable locking means in the cusing adapted to positively stop switch-controlling movement of'the member at partial completion of its "full stroke, a stop on the movable member, a spring-actuated detent pivoted in the casing and lying in slidnble contact with said stop, said detent being adapted to drop behind said stop upon an initial movement otthe switch-controlling member. means whereby dropping movement of the detent sounds an alarm, and means whereby completion of the full stroke of the switch-controlling member swings the detent from behind said stop.

3. In a device of the class described, an inclosin casing, a member manually movable in the casing and adapted to control a switch, releasable locking means in the easing adapted to positively limit switch-controlling movement of said member to a partial stroke, a detent pivoted in the casing and adapted to lie in sliding contact with said stop, means acting yield-ably to hold said detent away from an intermediate point in its full throw, said detent being adapted swings said detent to and past the aforesaid to drop behind said stop upon .an initial intermediate point in its full throw. movement of the switch-controlilng mem- WVitness our hands this 19th day of April, 10 her, means whereby dropping movement of 1920.

the detent behind said stop sounds an alarm,

and means whereby completion of the full WILLIAM S. WVILLS. stroke of the switch-controlling member ROBERT A. ROGERS.