US1434031A - Locking device - Google Patents

Description

L. E. WALLACE.

LOCKING DEVICE.

I APPLI'CATION FILED APR. 23, I920- -1,434,031. Patented Oct. 31, 1922.

Patented Oct. 31, 1922.

UNITED stares LEONARD E. WALLACE, OF PINE BLUFF, ARKANSAS.

LOCKING nnvrcn.

Application filed April 23,.

To all whom it may concern:

Be it known that I, LEONARD E. WALLACE, a citizen of the United States, residing at Pine Bluff, in the county of Jefferson and State of Arkansas, have invented certain new and useful Improvements in a Locking Device, of which the following is a specifi cation.

My invention relates to a locking device particularly adapted for use on automobiles to render them temporarily inoperative to guard against theft.

The main object is to provide a means which may be operated to break the ignition circuit and at the same time not be rcstorable to original condition without the use of key means which the driver retains.

Another object is to provide a lock having a key-controlled bolt in itself locked against turning by a key-controlled bolt and which controls a switch in the ignition circuit.

I also aim to provide a simple, eflicent and relatively inexpensive article capable of use on all automobiles, and possessing the novel features of construction, combinations and arrangements hereinafter described and illustrated in accompanying drawings, wherein one preferred embodiment is shown and wherein Figure 1 is a view of the improved lock in vertical section; I

Figure 2 is a top or plan view;

Figure 3 is a bottom view;

Figure 4 is a fragmentary cross-sectional view on the line 4-4 of Figure 1;

Figure 5 is a crosssectional view on the line 5-5 of Figure 1, and

Figure 6 is a perspective view of a key.

Referring specially to the drawings, a suitable casing A, which may be cylindrical as shown is provided, having an end wall 6 in which a tube 7 is centrally disposed to extend both interiorly and exteriorly. The other end wall 8 may be of any suitable construction and fastened in any desired manner. having a central opening 8 with an annular flange 9 in line with the sleeve or tube 7. In the sleeve 7 and opening 8', a bolt 10 is disposed for rotary and sliding movement. This bolt is provided with a suitable head 11 to be engaged by the socket of a key such as 12 in Figure 6, and the head is preferably completely within the sleeve 7 as shown so that an ordinary wrench or other tool cannot be used to tamper with the lock. On theend wall 6, a Yale or other 1920. Serial No. 376,043.

suitable lock 13 may be mounted so that its bolt may be thrown into recesses 14: and 15 of the bolt 10 to'hold the bolt againstrotation. An arm 16 is diametrically disposed on the bolt 10 and adapted to enter diametrically opposite openings provided in the tube 7 at 17 and opening at the lower end.

of the tube. A coil spring 18 surrounds and is fastened to the tube and to thebottcm end wall 8. While not necessary, yet the flange of opening 8 may be provided with slots 20 to receive a pin 21 passing through the bolt 10.

Arm 16 is bent at right angles as at 22 and serves as a switch arm. The wires 23 from the battery pass through a conduit 24-, which communicates with the interior of the casing A. The wires extend within the casing and are connected to terminals or contacts 25 on a base 26, which are adapted to be bridged by the right angle portion 22 of the arm 16.

At 27, a stop for the rotary movement of the switch arm and bolt is provided adapted to be engaged by the switch arm directly.

The casing may be mounted at any desired location on the machine and for instance may be bolted as at 28 to a part 29 thereof. With the parts in the relation shown in Figure 1, the automobile to which the device is connected may be operated since there is no break or gap in the ground wire 2311s long as the switch arm 22 bridges the contacts 25. If themachine is to be parked, after the motor is stopped, the Yale lock is operated by its key to retract its bolt, whereuponkey 12 may engage head 11, to first depress the bolt 10 so that arm 16 will free the lower end thereof. secondly to turn the key and bolt until the arm 16 engages the stop 27 and then release it so that the arm will reenter the slots 17. urged by spring 18 and the bolt then be locked by the bolt or look 13 extending into the recess 15. Thus the circuit is broken and cannot be reestablished until the driver returns and uses both the key for the Yale lock and the key 12. It is obvious that the circut may be reestablshed by operating the device opposite to that described. Of course when the circuit is broken, no current will flow from the battery and it is impossible to obtain a spark or operate the self-starter of the automobile.

Since merely the preferred embodiment has been illustrated and described, it is to be understood that changes in the details may be resorted to Within the spirit and scope as defined by appended claims.

I claim 1. In a device of the class described, a ing having a tube, a bolt slidable'and r0- tatable in said tube, said tube having aslot, a switch arm extending from the bolt adapted to enter the slot to maintain the switch open, or "closed a return spring for the bolt, a lock for the bolt mounted on the casing, means engageable to operate the bolt, and the tube guarding said last means to prevent tampering therewith.

2. In a device of the class described, a casing having a tube, said tube being provided With slots a bolt extending through the (121s ing and mounted to slide and revolve Within said tube, a switch arm carried by the bolt and entering the slots, means for disengaging ,the arm from saidv slots and revolving said M LEONARD E. WALLACE,

Witnesses J. W. \VALLACE, O. E. PERRY.

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