US1739003A

US1739003A - Combination lock switch

Info

Publication number: US1739003A
Application number: US238069A
Authority: US
Inventors: Addison R Klingensmith
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-12-06
Filing date: 1927-12-06
Publication date: 1929-12-10
Anticipated expiration: 1946-12-10

Description

Degz. 10, 1929 A. R. KLINGENSMITH l3739,003

COMBINATION LOCK SWITCH Filed Dec. 6. 1927 3 Sheets-Sheet l 1929- A. R. KLINGENSMITH v ,739,003

COMBINATI 0N LOCK SWI TCH Filed Dec. 6. 1927 3 Sheets-Sheet 2 ELL 3 \SWr 1 470 Y Dec. 10, 1929. A. R. KLINGENSMITH 1,739,003

COMBINATION LOCK SWITCH Filed Dec. 6. 1927 3 Sheets-Sheet 3 Patented Dec. 10, 1929 U D STATE-s PATENT-7 OFF p ADDISON it. K INGENSMI H, or 'renimssus, PENNSYLVANIA oo uia'nvarron' LOCK swiron" A plication aiea necember e, 1927'." Serial No. 238,069.

This invention relates'to a means for 0011- trolling thefignitionspark deliveredby a bat tery to the combust on c'l'iambers'ofan 1nternal combustion engine, used largely as motive 5 power in automobiles or for otherpurposes.

It-comprises a series of outwardly extending movable operating levers, which when properly set will form one or more complete cir cuitsto a series of combustion chambers, and to independent points governing other circuits suchas lighting systems, motor control systems, etc, as will be hereinafter described.

The principal object ofthe present invention is to prevent automobile thieves, or other unauthorized parties from operating aparked or otherwise abandoned car, and to render it-impossible, within a short time, to complete a necessary circuit to start the engine of the car. The invention comprises an arrangement of parts and levers to be operated by those knowing a certain combinationof said movement of levers. v

The invention further consists in the details of construction and combination of parts, as will be fully described hereinafter.

In the accompanying drawings:

Figure l is a sectional plan view of my improved device fo making and breaking the electric circuit from the battery to the combustion chamber or an internal combustion engine and lighting systems used in an automobile or other driving means. The section being taken approximately on the line XY of Figure 2 or" thedrawings.

Figure 2 is a front view of the same.

Figure 3 is a rear elevation of the contact plate and movable contacts.

Figure 4 is a face view of said cont-act plate removed from the apparatus.

Figure 5, is a perspective view of one of the operating levers, detached from the ap-' paratus.

Figures 6, 7 and 8 are detached. detail views of the parts, rigidly connected to the above mentioned operating lever.

Figure 9 is an enlarged central sectional view of a modified form of one of the said operating levers and its various component parts assembled.

Figure 10 is a front face view of the same.

Figure 11,- isa detail sectional view of= the lever socket of the operating levershowing a modified formin'which'the body is constru'cted in-two parts joined together, said construction adapted to facilitate or make easy the formation ofthe hollow 'spherical groove. l

Figure 12 is a front viewof the same.

Figure 13 is a face view of a portion ofthe contact plate showinga modified form of the same.

Figurelt is a face view'of a modifiedlform of one of the several movable contacts, do; tached from the operating lever, and

Figure 15, is an edge view'ofthe-same;

To "construct a device in accordance with 'my invention and thereby afford a' means that -will efi'ectuallyw prevent the starting of themotive power, without knowing the combination,a box'and cover are'provided, adapted to be fastenedin front ofthedriven-pref erably directly in front "and within easyreach of the same. This box l, is to receive is composed of several'parts, they being sup ported and operated in the several openings 7. The exposed-endllyof the plug is pro vided withan integral handle 10, (as shown in Figures 1, 2, 5 and 9) or said handle may be loosely*connectediin sockets 12, (see'Fig ures 9 and- 10) the leverportion having at one end a balll3, with outwardly projecting lug 13, operating in a groove 14. i l r This groove 14, and lug 13', will engage with each other=and-permit the -plug to' be revolved about its center, and also permit the lever 10, to assume averticalpositioni by gravitation. 1 y Thebarrel of each-f plug consists of three pieces carrying interposed parts, one 15, of

which keeps the plug is position. Another 16, positions the contact finger 17 in place and also supports the inner end of the plug and the several parts held rigidly together by suitable screws or rivets 18.

These contact fingers 17 consist of strips of metal and may be formed in various shapes, (as shown at Figure 1, 3, 6, 9 and 14) as circumstances require.

Arranged in circular form about each plug and carried by supporting

plates

5 and 6 are a multiplicity of stationary contact plugs 19, a select number of which are connected to the active circuits, the large majority being inactive and put in place to deceive and render the chances of unauthorized persons attempting to complete one or more circuits, highly improbable and almost impossible in a short period of time, without knowing the combination.

The several electrical conductors A and B see Figure 1) are attached to the battery not shown) and to the selected contact points 19. The circuits in this case lead to the several combustion chambers and to the lighting apparatus, or to any other desired point where motive power or other service is required.

In operation :-By the aid of a knob 4, (Figure l) the door of the cover is opened, exposing the series of levers 10, to view. It will be diificult for the operator to single out the proper levers to move in order to complete the circuit to any desired point, such as the combustion chambers or to the lighting circuit, as the number of contact points may be increased to and including several thousand. As the lever is moved an audible sound is made, as each point 20, passes over either the contact 19, or any of the slight depressions 21, which are not in the circuit.

At Figure 3 of the drawings, I have shown two plates, each formed with those above mentioned depressions and contact points. The one plate 21, is in circuit with the lighting apparatus and the other 21 is for the motive power.

It will be seen that any person, not knowing the exact combination of numbers or letters, if such are indicated, or the exact position of the levers 10, as presented from the front of the box 1, will not be able to complete the circuit.

This will deprive any thief from operating a car equipped with this improvement unless he has several hours to work out the combination.

It is obvious that the deatils of construction may be changed without departing from the spirit of the invention.

What I claim as new is 1. In combination with a lock of the character described, a rotatable plug provided with a spherical recess having an annular groove with a pocket, a loose lever having a spherical head with a radial projection operating within said recess, and a means for loosely holding the two parts together.

2. In combination with a lock of the character described, a rotatable cylindrical plug, provided with a spherical recess having an annular groove and pocket, a loose lever having a spherical head provided with a radial projection to engage with said pocket and a contact arm fixed to the inner end of the said plug.

3. In combination with a lock of the character described, a rotatable plug provided at one end with a spherical recess having an annular groove with a pocket, a finger lever formed with a spherical head and integral. radial projection operating within said spherical recess and pocket, a means for holding the parts together and contact fingers fixed to the inner end of said plug, in such manner, that the lever when at rest will assume a vertical position by gravitation.

ADDISON R. KLINGENSMITH.