US1329528A - Safety-lock for automobile-tires - Google Patents

Description

J. KERSHAW.

SAFETY LOCK FOR AUTOMOBILE TlRES.

APPLICATION FILED SEPT. 3. |918.

v I forma 3441 14. ko z Patented Feb. 3, 1020.

JOSEPH KERSI-IAW, 0F J'OPLIN, MISSOURI.

SAFETY-LOOK FOR AUTOMOBILE-TIRES.

Speccaton of Letters Patent.

Application filed September 3, 1918. Serial No. 252,393.

To all whom t may concern.'

Be it known that I, JOSEPH KEnsHaw, a citizen of the United States, residing at Joplin, in the county oit' Jasper and State of Missouri, have invented certain new and useful Improvements in Safety-Locks for Automobile-Tires, of which the following is a specification.

My invention relates to improvements in signaling apparatus, and has particular reference to such apparatus adapted to be used in connection with an automobile, to prevent the improper removal of a spare tire or tires from the machine, while not necessarily restricted to this use.

An important object of the invention is to provide means of the above mentioned character, which will serve as a lock to prevent the unauthorized removal ot the tire, and will also produce a signal, upon the attempt of such unauthorized removal.

A further object of the invention is to,

provide apparatus of the above mentioned character, which is of simple construction., convenient in use, and has its parts arranged in an inclosed manner, whereby the same will not be injured by the weather.

Other objects and advantages ot the invention will be apparent during the course of the following description.

In the accompanying drawings, forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a central vertical longitudinal sectional view through apparatus embodying my invention, parts being shown in elevation, and the contacts in the outer posi tion, and,

Fig. 2 is a similar view, showing the clamp partly removed from the sleeve, andl the contacts in the raised or inner position.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 5' designates a sleeve, which may be formed o1 iron,

or any other suitable material. This sleeve' 1s provided at its lower end with an 1n-V wardly extending annular iange 6,V internally screw-threaded, as shown at 7. At its upper end, the sleeve 5 is provided with an inwardly extending annular flange 8, Vwhich is not screw-threaded. Arranged within the sleeve 5 and confined between the tlanges 6 and 8 is a covering 9, .0f .insulating material,

such as paper, rubber or the like, to insulate iexible contacts 19 and 20 from sleeve 5.

Mounted to reciprocate within the sleeve 5 and the insulating covering thereof is a metallic tube l0, formed oit' iron or the like. At its .lower end, the tube 10 is externally screw-threaded, as shown at 11, and this screw-threaded end is adapted to engage within the screw-threaded opening 7, as clearly shown in Fig. 2. A

The numeral 12 designates the casing or box, having a cover 13, tor controlling access to the interior thereof. This cover may be locked in a closed position as is obvious. In its lower end or bottom, the casing 0r box 12has an opening 14, for the reception of the screwthreaded upper end of the tube 10, this end being clamped within the opening 14, by nuts 15, as shown. The casing or box 12 is rigidly secured to a suitable portion of the automobile.

Mounted to reciprocate within the tube 10 is an insulating tube 16, receiving a pair or" insulated wires 17 and 18. Resilient contacts 19 and 20 are secured to the lower ends of the insulated wires 17 and 18 and are adapted to be arranged within the lower ends of the insulating covering 9, when the insulating tube 16 is lowered, as illustrated in Fig. l and to be drawn into the insulating covering, when the wires 17 and 18 are elevated, as shown in Fig. 2. The insulated wires 17 and 18, at their upper ends, are bound together by a ring 21, also serving as a stop to limit the downward movement of these wires. A wire 22 is connected with the upper end ofthe insulated wire 17 and with one terminal of an audible signaling device, such as an electric bell 22. 'The other terminal of this bell is connected with a wire 23connected with the insulated wire 18. The wire 23 has a source of current 24, connected therein.

rlhe numeral 25 designates a tire encircling member, preferably formed in ltwo parts 26, hinged together at their lower ends,

as shown at 27. At their upper ends,the parts 26 carry extensions 28, externally screwthreaded, as shown at 29, to engage within the screw-threaded opening 7. The encircling member 25 is constructedof a suitable size to fit snugly upon the tire,and cannot be collapsed while thereon. One part 26 is rigidly secured to a bar or arm 26', which is in turn rigidly secured t0 .3v POI'OIL 0f Patented Feb. 3, 1920.v

the automobile, whereby this part is relatively stationary while the coacting part 2G is adapted to be moved to opened and closed positions with relation thereto.

The operation of the apparatus is as follows:

With the several parts of the apparatus arranged as shown in Fig. 1, an unauthorized person, attempting to remove the tire, will turn the' sleeve 5, in attempting to unscrew it from the extensions 28. rlhis turning movement will cause the sleeve 5 to move upwardly upon the metallic tube 10, causing the screw-threaded flange 6 to approach the screw-threaded portion 11 of the tube 10. The screw-threaded portion 11 is intended to enter the screw-threaded opening 7, but the contacts 19 and 2O being arranged between the screw-threaded portion 11 and the flange 6 will prevent this screw-threaded engagement, causing a binding action. Further, when the contacts 19 and 20 are thus forced into engagement with the flange 6 or metallic tube 10, a circuit will be closed to sound the bell 22. In this closed circuit, current flows from one pole of the source'of current 24, through wire 23, bell 22', wire 22, wire 17, Contact 19, portion of the tube 10,4 or flange 6, contact 20, wire 18 and back to the opposite pole of the source of current. It is thus apparent that the unauthorized person cannot disengage the tire holding member 25 from the sleeve 5, and that a signal will be given when an attempt is made to do the same.

lhen the authorized person desires to disconnect the member Q5 from the sleeve 5, the door 13 of the casing 12 is first opened, and the insulated wires 17 and 18 are elevated, to draw the contacts 19 and 20 wholly Within the insulating tube 16. The sleeve 5 is now rotated to unscrew the same from the extensions 28, and screw the same upon the screw-threaded port-ion 11, as illustrated in `Fig. 2. A

VIt is to be understood that the lforni of my invention herewith shown and described is tov be taken 'as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of my invention or the scope of the subjoined claims. Y

VHaving thus described my invention, I claim f 1. In apparatus ofy the character described, a tire encircling member having a screw-threaded extension, a sleeve having one end screw-threaded to engage with the screw-threaded'extension and having its interior insulated, a metallic tube mounted to .slide Within the insulated sleeve and having one end screw-threaded to engage with the screw-threaded end of the sleeve, an insulating tube arranged within the metallic tube, and wires mounted to slide within the insulated tube and provided at their lower ends with resilient contacts, which are bridged across, thus closing the circuit, by the unscrewing of the metallic sleeve from the encircling member;

2. ln apparatus of the character described, a tire encircling member having a screw-threaded evtension, a metallic sleeve having one end thereof screw-threaded to engage with the screw-threaded extension, a metallic tube mounted to slide within the metallic sleeve and having one end screwthreaded to engage with the screw-threaded end of the sleeve, and wires mounted to slide within the metallic tube and insulated therefrom and provided at their lower ends with resilient contacts adapted to move outwardly when released, which are bridged across, thus closing the circuit, by the unscrewing of the metallic sleeve from the encircling member.

3. ln apparatus of the character described, a relatively stationary metallic tube having both ends screw-threaded, a metallic sleeve mounted to slide upon the metallic tube and having one end screw-threaded to engage with the screw-threaded end of the tube, a member having a screw-threaded portion to engage within the screw-threaded end of the sleeve, wires mounted to slide within the metallic tube and insulated therefrom and provided at their lower ends with resilient contacts, which are bridged across, thus closingthe circuit, by the unscrewing of the metallic sleeve from the tube.

4. ln apparatus of the character described, a casing, a relatively stationary metallic tube having onerend extending into the casing, pair olwires mounted to slide within the metallic tube and insulated therefrom and having their upper endsl projecting above the upper end or' the metallic tube, a circuit connected with the upper ends of the wires, a metallic sleeve mounted to slide upon the metallic tube and having a screw-t ircaded opening, resilient contacts secured to the lower ends of the wires and adapted to be bridged across when the sleeve is screwed upon the tube, and a member having a screw-threaded portion to engage within the screw-threaded opening.

In testimony whereof l ture in the presence of two JOSEPH witnesses.

KERSHAVV.

.lditnesses B. R. Van PELT, losv PILE,

aiiX my` signa-

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