US1639354A - Engine ignition lock - Google Patents

Description

Aug 1927" J. G. SCHULER 1539354 ENGINE IGNITION pocx FiledJuly 2. 1924 Patented Aug. 16, 1927.

UNITED stares JOHN GEORGE SCHULEB, OF BUTTON, MONTANA.

ENGINE IGNITION LOCK.

Application filed July 2, 1924. Serial No. 723,773.

This invention relates to improvements in ignition locks for engines.

An important object of this invention is to provide a device of the above character which will prevent the unauthorized use of an automobile or the like.

A further object of this invention is to provide an ignition control mechanism which will be automatic in operation.

Other objects and advantages of 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 designate like parts throughout the same,

F igure 1 is a perspective view of the invention, v

Figure 2 is a plan view with the'magnets removed,

- Figure 3 is a side view of the invention, showing some of the parts in elevation and othersin section,

Figure 4 is a view taken on line 4-4 of Figure 3,

Figure 5 is aview of thelock plates and control bar released,

Figure 6 is a view of the lock plates and control bar with the control bar locked in inoperative position,

Figure 7 is a view taken on line 77 of Figure 3, showing the gear control means, and,

Figure 8 is a diagrammatic view of an ignition system with the invention connected thereto.

Reference now being had to the details of the drawings, the numeral designates a T shaped base plate, which may be mounted in any suitable manner to the dash or instrument board of an automobile.

One'end 16 of the base plate 15 is adapted to support an insulating block 17 having an electrical contact plate 18 mounted there on, while its other or forward end19 is bent upwardly at right angles to said base plate to support latch operating mechanism, which will be hereinafter more fully described. The contact plate 18 is grounded 59 to an engine (not shown) by means of a I lead wire 20. Imbedded in one end of the insulating block 17 and insulated from the contact plate 18 is a U-shaped member 21 having connection with a distributor 22 55 through the medium of a lead wire 23.

Mounted intermediate the ends of the base Cal plate 15 are standards 24' and 25, the upper The shaft 29 also carries The lower extremities of the straight edges,

of the lock plates'30 and 32 are provided with recesses 36 adapted to receive spring projected pawls 37.

Rotatably mounted upon the end. 19 of the base plate is a permutation dial 38 havmg its hollow shaft 39 provided at one end thereof with a toothed gear 40, which meshes with thegear 33. dial 41 has its shaft 42 rotatably mounted within the hollow shaft 39 and is provided at one end with a toothed gear 43 which meshes with the gear 31. The figures of the rotatable dials 38 and 41 are. adapted to register with the figures of the stationary dial 44 to form various combinations. when the said rotary dials are moved to predetermined positions. I

A movable lever or bar 45 having one end 46 thereof substantially U-shaped and hav ing its other end 47 bent downwardly and outwardly to provide a linger engaging portion 48, is resiliently mounted for vertical movement upon the'base 15 through the medium of a sliding or telescoping rod 49. This sliding or telescoping rod 49 is encircled by a tension spring 50, having its lowerend secured to the base plate 15 and its upper end secured to the lever or bar 45.

A movable insulating block 51 having upper and lower electrical contact plates 52 and 53- respectively, is provided its opp-o'- site ends with pivot pins 54 which are adapted to engage with openings 55in the U-shaped end of the lever or bar 45. cured to one end of the lower contact plat 53 isacontact member 56 which is adapted .to engage with the U-shaped Contact member 21 when the insulating block 51 is lowered, to shunt the current through the distributor 22.

Mounted above the Contact plate 52 and adapted to contact therewith are electromagnets 57 and 58, the magnet 57 being connected to an ignition switch 59 by means of a wire 60 and the magnet 58 connected to A second permutation the distributor 22 by means of a Wire 61. Tension springs 62 connecting the insulating blocks 1'? and 51 are provided to pull the insulating block 51 downwardly when the magnets 57 and 58 are deenergized.

In operation, the ignition switch 59 is closed to energize the magnets 57 and 58 and the permutation dials turned so that the lock plates 30 and 32 take the position shown in Figure 1. The finger engaging portion 48 is then grasped and the lever or bar moved vertically past the spring projected pawls 37 until the plate 52 contacts with the electro-magnets. This action will allow the current to pass from the battery 63 into the distributor and the engine may then be started. Upon leaving the automobile the driver opens the ignition switch, causing the magnets to become deenergized and the plate 53 and contact member 56 to be pulled into contact with the plate 18 and contact mem ber 21 by means of tension springs and 62. If the switch is then turned on, the current will pass through the contact members 21 and 56 and plates 18 and 53, thereby shorting the ignition circuit. To look the bar 45 against vertical movement the lock plates are turned to the position shown in Figure 6. To start the automobile it is necessary to again grasp the portion 48 and move the plate 53 into contact with the magnets 57 and 58.

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 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.

Having described my invention, I claim:

1. A look comprising'a support, a bar movably mounted upon the support, electric terminals carried by the support and the bar, a magnet disposed adjacent the bar for holding said bar in position with said terminals disengaged when said magnet is energized, locking plates mounted for turning movement and located one at each side of the bar for holding said bar in position with said terminals in engagement, means for turning the plates simultaneously, the plates having peripheral portions adapted to overlap each other when the plates are turned to one position and the plates having cut energized, locking plates located one at each side of the bar and mounted for turning movement for holding said bar in position with said terminals in engagement, pivoted pawls carried by the locking plates, the locking plates being cut away at one side to provide clearance space whereby the bar may be received between the plates, and means for turning the plates simultaneously.

3. An ignition lock comprising a support, a bar movably mounted upon the support, terminals carried by the bar and the support, a magnet located adjacent the bar for hold.- ing said bar in position with said terminals disengaged when said magnet is energized, locking plates mounted for turning movement and disposed one at each side of the bar for holding said bar in position with said terminals in engagement, means for turning the plates simultaneously, the plates having peri 'iheral portions adapted to overlap each other when the plates are at one position and the plates being provided ith cut away peripheral portions which are spaced from each other when the plates are turned to another position and whereby the locking bar may be received between the plates, and pivoted pawls carried by the plates at the cutaway peripheral portions thereof.

i. In an ignition lock a bar movably mounted, locking plates mounted for turning movement and located one at each side of the bar, 'd plates having cut away peripheral portions, pivoted pawls carried by the plates at the cut away peripheral portions thereof, and means for turning'the plates simultaneously.

In testimony whereof, I have afi'iXed my signature.

JOHN GEORGE SCHULER.

Images