US1740210A

US1740210A - Protecting device

Info

Publication number: US1740210A
Application number: US177825A
Authority: US
Inventors: Tobin Daniel
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-03-23
Filing date: 1927-03-23
Publication date: 1929-12-17
Anticipated expiration: 1946-12-17

Description

Dec. 17, 1929. D. TOBIN 1,740,210

PROTECTING DEVICE I Filed March 25, 1927 2 Shets-Sheet 2 r I In" I u INVENTOR I 7 I 6 ATTORNEY Patented Dec. 17, 1929 UNITE STATES DANIEL TOBIN, OF CHICAGO, ILLINOIS PROTECTING DEVICE Application filed March 23, 1927. Serial No. 177,825.

This invention relates to certain novel im provements in protecting devices and more particularly to a device for preventing unauthorized starting of an automobile or airplane and has for its principal object the provision of an improved construction of this character which will be highly efficient in use and economical in manufacture.

Among the salient objects of the invention is to provide a device of this character which includes mechanism operable upon a controlling rod for retaining the control rod in an inoperative position whereby to prevent unauthorized operation of mechanism controlling the operation of an automobile or an aeroplane.

A still further object of the invention is to provide a device of this character which includes a plurality of corelated discs operable by a single dial for controlling operation of mechanism operable to prevent unauthor ized starting of an automobile or aeroplane.

Other objects will appear hereinafter.

The invention consists in the novel combination and arrangement of parts to be hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings, showing the preferred form of construction and in which:

Fig. 1 is a face elevational view of the invention showing the same applied to a control board of an automobile or the like,

Fig. 2 is a sectional detail View of the same taken substantially on line 22 of Fig. 1,

Fig. 3 is a sectional detail View taken substantially on line 33 of Fig. 2,

Fig. 4 is a sectional detail view taken substantially on line 44 of Fig. 2,

Fig. 5 is a fragmentary sectional detail view of a slightly modified form of the invention,

Fig. 6 is a diagrammatical circuit detail View embodied in the invention, and Fig. 7 is a fragmentary sectional detail View showing a slightly modified form of construction of certain parts of the invention as shown in Fig. 2.

In the drawing 10 indicates a housing which has a removable back wall 11 secured in the present instance to the side walls 12 as at 13. The front wall 14 of the housing 10 includes a lateral collar 15 to which is secured as at 16 a cover 16. Formed in this cover 16 is an opening 17 and arranged in the opening 17 is a dial 18 having formed on its peripheral edge 19 graduations 20 adapted to selectively register in alignment with a graduation mark 21 formed on the cover 16, Fig. 1. This dial has formed thereon a sleeve 22 which extends into the interior of the housing and arranged in this sleeve is a bushing 23, said sleeve being supported for rotation through the medium of a vertically extending standard 24 mounted within the housing. Movable longitudinally within this bushing 23 is a push rod 25 carrying a pin 26 which limits its outward longitudinal movement. The inner end portion 27 of the rod 25 is adapted to move into a barrel 28 supported within the housing through the medium of a bracket 29. Arranged within this barrel 28 is a spring 30 embracing the reduced end portion 31 of the rod 25, and functioning to normally project the rod outwardly in a longitudinal direction with respect to the bushing 23. A lock arm 32 is pivotally supported through the medium of a post 33 and one end portion 34 of this arm 32 is connected to the rod 25 through the medium of a pin and slot connection 35.

Formed on the interior end portion of the sleeve 22 is a bevelled gear 36. This gear 36 is adapted for meshing relation with a bevelled gear 37 rotatably supported upon a pin 38 carried by a bracket 39. This bevelled gear 37 has one side thereof which provides a disk 40.

Mounted for rotation upon the pin 38 are spaced aligned discs 41 and 42 said discs 41 and 42 and the disc 40 having notches 43 formedin their peripheral edges for reasons hereinafter set forth. The discs 40, 41 and 42 carry laterally extending pins 28, there being two pins 28 carried by the disc 41 on oppo- 9 sitesides thereof inwardly of its notch for reasons hereinafter set forth. The discs are spaced from each other through the medium of spacing washers 44. The opposite end portion 45 of the arm 32 is disposed laterally with respect to the discs and extend transversely thereof for reasons hereinafter set forth.

A bell crank 46 is pivotally supported by a bracket 47 within the housing 10. The arm 48 of the bell crank has its end portion 49 disposed in the path of the longitudinal movement of the rod 25 for reasons hereinafter set forth.

The arm 50 of the bell crank 46is secured to one end portion of a spring leaf 51 through the medium of a pin and ear connection 52. The opposite end portion of this spring leaf 51 is connected as at 53 to a barrel 5'4 supported within the housing through the medium of a brack'et55. Arranged within this barrel 54 is a spring 56 which acts upon an operating rod 57 for moving the rod 57 in one longitudinal direction, said operating rod being supported for longitudinal movement through the ii'iedium of a sleeve 58 supported by a bracket 59. The end portion 60 of the rod 57 has a notch formed therein and adapt ed to engage in this notch is an angled end portion 62 of the spring leaf 51 Which provid'es a latch. for releasably latching the rod 57 in a position against the action of the spring 56. v

The outer [end portion 63 of the rod 57 projects through an opening 64 formed in the cover 16.

Mounted for movement with the rod 57 as at 57 is an insulating plate 65 which carries an annular contact ring '66. An insulating plate 67 is disposed in the path of movement of the plate '65 and has a central opening 68 formed therein for the free passage of the rod 57, said plate 67 being supported in this position through the medium of brackets 69. Secured to the insulating plate 67 in the path of movement of the contact ring 66 are contact points 70 and 71. The contact point 70 is connected in circuit with the ignition system 72 of an automobile aeroplane or the like through-the medium of a conductor 73. The contact point- 71 is connected in circuit through the medium of conductor 74 to one side 75 of a switch 7 6, said switch having its other side 77 connected to one side of a source of electrical energy 78 through the medium of a conductor 79, said one sideof the source or electrical energy being connected through the medium of a conductor 80 to the other side of the ignition system 72. This switch 76 is best illustrated in Fig. 2 and includes a push button 81 carried by a plunger 82, said push button 81 projecting through an opening 83 formed in the cover 16. The plunger 82 is slidably supported by a sleeve 84 carried by a bracket 85, said plunger being insulated from dicated as one side 75 of the switch 7 6 in Fig. 6 is connected in the present instance to one side of parking lights'89 through the medium of a conductor 90, the other contact finger 87 being indicated in Fig. 6 as the other side of the switch 76.

The operation of the invention thus far described is as follows: 7

To release the rod 57 for movement by action of the spring 56 in a direction to dispose the ring 66 into contact with the contact points the operator rotates the dial to impart rotation inan anti-clockwise direction to the disc 40. This disc 40 is rotated until the pin 28 thereof engages the pin 28 of the disc 41. VJ hen these two pins are in engagement with respect to each other, continued rotation of the disc 40 will impart rotation to the disc 41 to move the other pin of this disc 41 into engagement with the pin 28 of the disc 42. The discs 40 and 41 are further rotated to impart rotation to the disc 41 to dispose the notch of this latter disc in position for re: ceiving the end portion 450i the arm 32. To position the notch of the disc 42in this osition it is necessary in the present instance to rotate the dial 18 one-half revolution after the other pin 28 of the disc 41 has engaged the pin 28 of the disc l t hen the other pin 28 of the disc41 is moved to the point of engagement with the pin 28 of the disc 42 the notch thereof will be in alignment with the notch of the disc 42 whereby when the disc 42 is moved one-half revolution by further movement of the dial, the two notches will be disposed in aposition to receive the end portion 45. The dial 18 is now rotated in a clockwise direction to dis pose the notch 43 of the disc 40 in alignment with the notches of the discs 41 and 42, the necessary movement of the dial being indicated by, graduation marks 20 formed on the front wall 14, to indicate the required rotation of the dial to set the notches in alignment with respect to each other.

lVhen the notches of the disc are in alignment with respect toeach other the operator places his finger upon the outer end portion of the rod 25 to move the rod inwardly against the action, of the spring 30, said movement of the push rod being permitted by movement of the end portion of the arm 32 into the aligned notches of the disc. 1nward movement of the push rod 25 acts upon the arm 48 of the bell crank 46 and moves this bell crank in a direction to disengage the latch end portion 62 from engagement in the notch 61 of the operating rod 57. Then the latch end portion 62 is thus disengaged from the notch 61 the spring 56 will act upon the rod 57 and move this rod outwardly to dispose the ring 66 into engagement with the contact points 70 and 71, thus to complete the ignition circuit.

To reseat the latch end portion 62 in en gagement in the notch 61, the operator pushes the rod 57 against the action of the spring 56. The latch end portion 62 will then automatically engage in the notch 61.

The operator now manipulates the dial 18 to move the notches of the discs from registration with respect to each other, it being pointed out that the spring 30 functions to move the push rod 25 to move the arm 82 and disengage the end portion 15 thereof from within the notches.

The movement of the discs is indicated by the graduations on the peripheral edge of the dial and it is pointed out that these discs may be set in various positions with respect to each other so as to change the combination of their movement by the dial.

In Fig. 7 I have illustrated a slightly modified form of construction and in this structure the operating rod indicated in this modified form at 65 has its inner end portion formed to provide a valve head 66 which is adapted to close communication between

conduits

67 and 68. This conduit 68 communicates with an auxiliary supply tank (not shown) which is adapted to receive gasoline from a supply tank (not shown). The conduit 67 delivers the gasoline to the carburettor of an automobile, aeroplane or the like.

It is pointed out that the description of the operation of the device shown in Figs. 1 and 2 is substantially similar to the operation of the device shown in the modified form illustrated in Fig. 7.

l/Vhile I have illustrated and described the preferred form of construction for carrying my invention into eflfect, this is capable of variation and modification, without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to protect by Letters Patent is:

1. In a device of the class described, an operating member manually movable in one direction, means for moving the operating member in an opposite direction, a push rod manually movable in one direction, a pivotally supported lock arm, means connecting one limb portion of the lock arm to the push rod, means for moving the push rod in an opposite direction, a latch member for releasably latching the operating member in a position against action of said first mentioned means, said latch being operated by the push rod, means operable by the push rod for moving the latch member from latched engagement with the operating member to permit said operating member to move against the action of said first mentioned means, and

means for controlling pivotal movement of the lock arm against action of the push rod in a direction to operate said latch operating means,

2. In a device of the class described, the combination with an operating member manually movable in one direction, a spring member for moving the operating member in an opposite direction, a latch member for releasably latching the operating member against action of the spring member, of a pivotally supported bell crank having one of its limb portions connected to the latch men1- ber, a push rod manually movable in one direction for operation upon the other limb portion of the bell crank, means for moving the push rod in an opposite direction, and means controlling movement of the push rod in said one direction, said push rod when moved in said one direction moving the bell crank to move the latch member from engagement with the operating member.

3. In a device of the class described, the combination with an operating member manually movable in one direction, a spring member for moving the operating member in an opposite direction, a latch member for releasably latching the operating member against action of the spring member, of a pivotally supported bell crank having one of its limb portions connected to the latch member, a push rod manually movable in one direction for operation upon the other limb portion of the bell crank, means for moving the push rod in an opposite direction, and means controlling movement of the push rod in said one direction, said push rod when moved in said one direction moving the bell crank to move the latch member from engagement with the operating member, said last mentioned means including a pivotally supported lock arm, means connecting one end portion of the lock arm to the push rod, and means adapted to be engaged by the opposite portion of said lock arm.

In testimony whereof I aflix my signature.

DANIEL TOBIN.