US1408295A - Ignition lock for automobiles - Google Patents

Description

C, A HERVEY. Eiiw'iTfON LOCK FOR AUTOMGBiLES WPUCA'HUN man MAR, 28. 1921.

Inventor Witne Patented Feb. 28, 1922.

UNITED STATES GHQ-BLISS A. KEBVEY. 0F LANSING. MICHIGAN.

IGNITION LOOK FOB AUEOMOBILES.

To all whom it may concm'n:

Be it known that I, Cmmnns A. l'lnnvm', a citizen of the United States, rcsidin at Lansinf, in the county of Inghom and btntc o'f Mic iigan, have invented a new and useful Im rovement in Ignition Looks for Antonio iles, of which the following is o specification.

My invention relates to dcvicesfor lock-- ing the ignition of automobiles for their better protection, and its purposes are to make n device that can be readily constructed us :1inodificntiomoi an ordinary lock, but shall add to its security hy making it impossible to leave the key in the lock hy providing an automatic means for the rejection of the key.

I attain these purposes by the meansshown in the accompanying drawings in which Fig. 1 is e diugruiumntic plan. view of my device, all the um-ssentinl ports and those of ordinary construction hein'g re moved. Fig. 2 is o plan view of the hook of Fig. I. Fig. 3 is a longitudinal section of the operative part of my device. Fig. -l is a detail showing, the construction of the device for rejecting the key.

Referring to the drawings, 1 is the outer case or mom body of any ordinary ignition look. I donot describe this look in detail for the exact construction forms no port of my present invention which may he applied to a number of diflerent locks of .the electrical type. 2 is a tumbler lock of any ordinal well known construction, provided win no operating pin 10, adapted to cngnizc with a notch 11 formed in a slide 3. T ie slide 3 is provided with lon itndinal slots 12 and 13. The slot 12 is udhpted to slide on the holl 15, which is used to secure the front of the nose in position, and the slot L3 slides on the shaft 6 of the locking lover 5. These thus serve'to retain the slide 3 in position. A s'iring 4 engages with a notch 16 formed in the side of the-slide 3 and operates to retain the bar "in the locked position as shown in Fig. 1., except when druwnbatik by the action .oimthe key as will be more fully described hereafter. An arm 7 extends parallel with the axis of the shaft 6, moving in'n slot 18 formed in the back of the case 1 and engaging with 11 spring 8, the action of which is to throw Speolfiontlonoi Letters Patent. Patent'cd Feb. 23, 1922.

- Application filed March 28,1921.

Serial No. 456.375.

the arm T into the position shown at 9 in Fig. 1. when released lay throwing forward the slide 3 in the action of the lock 2 as will he more fully explained in connection with the operation of the device. A. lube 19 is mounted concentrically with the lock 2 on the hack side of the case and secured to it in any suitnhle munncr, as for instance, hr a screw thread 20. A slide 2 is colistructrd to (it the key opening 22 in the lock 2 und provided with ncylindrical body 23 which is pressed outward by a spring 24 mounted in tho. opening of the tube 19. 23 IS the sin: it of the lighting mechanism which forms no part of my present invention and is. therefore, not descrihed in detail. 26

a slot in the hack of the dovire which also pertains to the lighting merhuuism.

The operation of my device is as follows.

shown in Fig. l. the devire is in the position in which the car is locked by break mg or opening the circuit of the ignition incclmnism in theinunner well known to all those familiar with the art of constructing such looks. To unlock the our by closing the circuit. the locking pin 10 is revolvcdhe. inserting and turning the key in the key opening 22 and engages with the notch 11 throwing theslide 3 to the left and releasing the arm 7 which is then thrownforward to the position 9, by the action of the spring 8, carrying with it the lever 5 and moving the mechanism 17 of the ignition circuit into :osition to unlock the'ear by closing the ignition circuit. In this position thearm 7 stands oppositennd against the end of the slide 3, which, therefore, cannot be operated by the use of the key.

To look the car the lever 5 is moved over, carrying with it the arm 7, thus releasing the locking harfi which is thrown back into the position shown in Fig. l by the notion of the spring 4.

It will be noted that in insertin the key the slide 21 must he pushed hac by the key. As soon, however, as the operation of unlocking is completed, the key will be nshed out, by thenction of the spring 24.

t is thus impossible to leave the key in the look after use. It will also he noted that the key is not used to lock the car, but that the operation of 0 onion; the ignition circuit with the handlia 5, automatically locks 2 mosses the car. which can only be iinlocked with the key since the slide 3 prevents the switch 17 from being operated.

I claim as my invention and desire to secure b Letters Patent:

1. Tie combination with a switch for opening and closing an electric circuit, and a lock for said switch provided w th a locking pin adapted to be operated by said lock, of a slide adapted to be engaged with, and operated by, said pin; a stop attached to .said switch and operated thereby, said slide and stop being mutually interacting; a spring acting on said stop and switch to throw them into the position for engaging with said slide, and a spring adapted to press said slide against said stop.

2. The combination with a switch for opening and closing an electric circuit, and a lock for said switch provided with a locking pin adapted to be operated by said lock of a slide adapted to he engaged with, and operated by, said pin; a stop attached to said switch and operated thereby, said slide and stop being mutually interacting; a spring acting on said stop and switch to throw them into position foiflengaging with said slide; a spring adapted to press said slide against said stop, and means for automatically ejecting the key when said circuit. is closed.

3. The (:mnbinat-ion with a switch For opening and closing an electric circuit and means comprising a push bar slidably mounted in the key hole of said lock and a spring operated upon said push bar to force it into said key hole.

4. The combination with a switch for opening and closing an electric circuit provided with an operating handle and a lock for said switch provided with a locking pin adapted to be operated by said lock, of a slide adapted to e engaged with, and operated by, said pin; a stopattached to said switch zinfl operated thereby and adapted to engage. with and prevent the motion of said slide; a spring: acting on said stop and switch to throw them into the position for engaging with said slide; a spring adapted to press said slide againstsaid stop, and means for automatically ejecting the key when said circuit is cl0sed, sa.id means com prising a push bar slidably mounted in the key hole of said lock and a spring operated upon said push bar to force it into said key hole.

."1. The combination with a switch for opening and closin g an electric circuit )rorided with an operating handle and a lock for said switch provided with a locking pin adapted to be operated by said lock, said loclc being provided with a key hole adapted to receive a key for operating said lock, of a slide adapted to be engaged and operated by said pin; a stop attached to said switch and operated thereby and adapted to engage with and prevent the motion of said slide; a spring acting on said stop and switch to throw them into the position for engaging with saidslide; a spring adapted to press said slide against said stop, and means for automatically ejectin the key when said circuit is closed, suit means comprising a push bar slid-ably mounted in the key hole of said lock and a spring; operating upon saidpush bar to force it into said key hole.

CHnR-LES A. HERVEY.

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