USRE16945E - To mitchell - Google Patents

Description

f E. R. KNIGHT -R 16,945 ummm mgl Qriginl Filed Dedf'f 1925 2 Sheefs-Sheet 1 15in/en d OJ".

Reiasued Apr. 24, 1928.

UNITED STATES EDWARD B. KN'IGHT, 0l CARSON CITY,

Nirvana, assumes., BY imm asienm5, T0 MITCHELL SYRCIALTY COMPANY, 0F PHILADELPHIA, PENNSYLVANIA- auroinoran. THEM Loox,

rlzlnal lo. 1,588,529, dated August 81, 1926, Serial No. 73,759, led December 1, 1925. 'Application for reissue led Harsh 10, 192B. SerialNo. 260,693.

This invention relates to improvements in automobile theft locks, and has particular reference to means for lookin an automobile against theft and to furt er cause an alarm to be given when an attempt is made to steal the automobile.

Another object is to provide means whereby the lockingI mec anism is protected againsttampering while in a locked position.

Another object is to provide means for locking the ignition system and the hood protectn the engine.

A fnrier object is'to provide a device of this character which is simplein construction and therefore cheap to manufacture.

A still further object is to provide means which may be applied to an standard make of automobile without altering the construction of the same. k

Other objects and advantages will be apparent during the course of the following escri tion.

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

Figure 1 is, a fragmentary detail view showing a rtion of an automobile in crosssection an having my device applied thereao to` Fi 2 is a vertical cross section taken on the line 2-2 of Figure 4;

Fi re 3 is a vertical cross section taken on the line 3-3fof Figure 4; 85 Figure 4 is affront elevation of my device as the same would a the radiator toward t e dashboard;

Figure 5 is a fragmentary detail view showing the hood-locking mechanism;

Figure 6' is a cross section taken on .the line 6-6 of Figure 5; re 7 is a cross sectional view of the Fi switc mechanism; and

Fi re 8 is a front plan view of the switch 46 as s own in Figure 2, looking from the drivers seat.

Applicant is aware of the fact that many forms of automobile locks have been placed upon cars, the same locking the igiiition and 5o transmission and other parts of t e automobile independently. Applicant has devised a lock which automatically breaks the ignition circuit to the distributor, also automatically locks the hood of the automobile against bepear in looking from.

ing raised thereby precluding thethief gettingto the engine, and also automatically manipulating a switch whereby should a thief attempt to place a wire around the customary lock an alarm would be given. In the accompanying drawings, wherein for the purpose .of illustration is Shown a preferred embodiment of my invention, the numeral 5 designates the frame lof an automobile, the numeral 6 the dash thereof, 7 the radiator and 8 the hood, while at 9 is shown the customary instrument board.

Between the instrument board 9 and the dash-board 6 is a tubular member 11 which is free to rot-ate on bearing members 12 and 13. Within this tubular member 11 is a second tubular member 14 which is secured to the bearing members l'12 and 13 and also to a nut 16 securedv to the upper surface of the dash-board 6. The result of the strncture thusfar described is that should a thief place a wrench upon the tubular member 11 the same would rotate and therefore he could not in any manner turn the locking mechanism. The locking mechanism proper consists of the ordinary cylinder lock 17 operated by a key 18. When turned thisv cylinder lock 17 is adapted to rotate a shaft 19 having a squared end 21 upon which a plate 22 is secured. This plate 22 has raised outwardly therefrom a cam track 23 within which a roller 24 is positioned. This roller 24 is mounted upon a slider 26 slidably positioned in a slot 27 formed in a plate 28 which is secured to the dash-board 6 as by lugs 29.

A cross piece 31 is securedto the slider 26 and has extendingtherefrom wires 32 and 33. These wires pass through tubular shells 34 and 36 and are commonly known as Bowden wires.

Referring now to Figures 1 and 5, it will be noted that the shell 36 is secured to the tubular portion v37 of a bifurcated bracket 38, which bracket issecured to the frame 5 of the automobile.

Attached to the hood 8 is an arm 39 which is adapted to lie between the bifurcated` portions of the bracket 38 when the hood 8 is in a closed position. This arm 39 has an 'opening therethrough which coincides with openings formed in the bracket 38 which permits a pin 41 secured to the end of the wire 33 to be projected from the tubular member 37, through the arinl 39, thereby .and that the wires 32 and 33 terior cam 42, which is adapted to contact a roller 43 mounted upon the end of an arm 'time protected 44. This arm 44 carries a'wiping contact 46 which contacts a block 47 at all times, and when in its lowermost position, as shown in Figure 7, contacts a block 48. A block 49 is positionedin alignment with the block 48, so that when the arm 44 is raised the wiper 46 will move into contact with the block 49. The block 49 is connected b a wire 51 to a suitable alarm, such as the horn of the machine. The block 48 is connected by a wire 52 to the distributor of the car, and the block 47 is connected'by a vwire 53'to the customary switch of the car.

The result of the structure thus far described is that whenthe key 18 is placed in the lock 17 and rotated so as to unlock the device, the handle 54 may be moved to one of three positions, desi ated by the numerals 1, 2 and 3, of igure 8. When in the position of the numeral 1, the parts are in the position shown in Figure 4, the result bein that the hood 8 may'be raised if desiret?,r or 'the car may' be driven.v When moved to the position of the numeral 2 of Figure 8, the result will be that the cam plate 22 will have been given a partial rotation, as indicated by the arrowof Figure 4, which rotation will push vdown on the Bowden wides 32 and 33, the 'cross piece 31, sliderl 28 and roller` 24, with the result that the pins 41 will be moved to their dotted line position of Figure 5, thus locking the hood 8 against being raised. Further manipulation of the handle 54 to the position 3 of Figure 8 will result in the cam 42 contacting the lever 43, thus moving the arm 44 upwardly as indicated by the arrow thereabove in Figure 4, resulting in the wiper 46 moving from the block 48 to the block 49 and thus breaking the circuit to the distributor of theengine, thereby preventing the engine from being started and further conipleting the circuit to the horn.n Accordingly, should an unauthorized person attempt to bridge around the customary switch of the car, he will of necessity complete the circuit to -the horn and give an audible signal. It will thus be seen that -a machine equipped Awith my device is entirely protected against tampering and at the same against operation by an unauthorized person.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the ltions b same, and that various changes in the'shape,

locking' mechanism thereon, said. locking mechanism comprising a rotatable member, a cam secured thereto, a roller adapted to be actuated Vby said cam, a slider secured to said roller, a pair of wires secured to said slider and extendinur to aremote int for the purpose of loc g the hoo of said automobile when said rotatable member is moved. 2. In combination with an automobile, a locking mechanism comprising a key-actuated lock, a rod secured thereto and adapted to be rotated thereby, a plate secured to said Y rod, a cam formed in said plate, a second cam formed on the edg first mentioned -cam bein ate a pair of pins locate on said automobile.

3.. In combination with an automobile having a hood and an Vi ition system, a locking mechanism theregoli comp a key-actuated lock, a rod secured thereto, a tubular housing surrounding said rod and being free to rotate thereabout, a plate secured to said rod and adapted to be moved thereby, a cam formed on said ond cam formed on the edge o said late, a roller adapted to be engaged by sai first mentioned cam, a slider secured to said roller a pair of wires secured to said slider, a bolt secured to the opposite end of each of said wires, each of said bolts be' positioned in the tubular portion of dnracket positioned adjacent the hood of said auto.- mobile, an arm secured to the hood of said automobile and adapted to be said bolt a contact mechanism ha ralityof contacts, a wiper adapt-: moved over said contacts, an arm said wi r, a roller secured to said arm, said ro er being adapted to be actuated by siid second mentioned `cam formed on said p ate. Y

h 4. In combination with im automollilile avmg anv ignition system, a ockin' g mec anism therefor, said locking mechanism comprising a key-actuated lock, a cam secured thereto, a wire actuated in opposite direcsalild cam, Aexteidilng d Aint or t e purpose o oclung' an unocking an essential part of the automobile when said locking mechanism is selectively 5. In combination with an automobile, a

adapted to actua pluto be .locking mechanism thereon, said locking mechamsm comprising a rotatable member, a cam secured thereto, a wire'tctuated in e of said plate, said at a remote point iin secured to"v iis to a remote ufo 10 locking mechanism comprising a rotatable member, a. cam secured thereto, a wire actuated in opposite directions by said cam extending to a remote oint for the purpose of locking and unloc ing an essential part of the automobile, said wire being reciprocated by the rotation of said cam, of an ignition system having a plurality of contacts adapted to be o ened and closed as and when said rotata 1e member is moved.

EDWARD R. KNIGHT.

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