GB435197A - Improvements in secret combination electric switches for ignition and other circuits - Google Patents
Improvements in secret combination electric switches for ignition and other circuitsInfo
- Publication number
- GB435197A GB435197A GB879634A GB879634A GB435197A GB 435197 A GB435197 A GB 435197A GB 879634 A GB879634 A GB 879634A GB 879634 A GB879634 A GB 879634A GB 435197 A GB435197 A GB 435197A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switches
- contact
- indicator
- circuit
- arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
- B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Switches With Compound Operations (AREA)
Abstract
435,197. Secret contact-combination switches. BROOKER, T. E., 15, Manor Lane Terrace, Lee, London. March 21, 1934, No. 8796. [Class 38 (v)] A secret combination switch comprises a number of multiple contact switches A, A<1> the contacts 0, 1, 2 .... 9 of which are connected by wires to the contacts 0, 1, 2 .... 9 of an equal number of switches C, C<1> arranged some distance away. The switches A, A<1> are set to some predetermined position, and a circuit between two conductors E, F can then only be completed when the switch arms C, C<1> are placed on corresponding contacts. The switches C, C<1> may be mounted on the dashboard of a car. The switches A, A<1> are mounted on a device W, Fig. 5, being retained in position by a cover, not shown. The contact arm A or A<1> is mounted on the opposite end of a spindle to the indicator and operating handle B, and, as shown in Fig. 1, the arm and indicator may be at an angle to each other so that the indicator does not indicate the actual number of the contact engaged by the arm. To close the circuit the switches C, C<1> must therefore be moved on to numbers in which this error, known only to the owner, has been allowed for. As a further precaution an earthed conductor R is included in the bundle of wires forming the cable connecting the switches so as to prevent completion of the circuit E, F, by short circuiting all the wires. The switches C, C may be similar to the switches A, A<1> or may take the form of drums.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB879634A GB435197A (en) | 1934-03-21 | 1934-03-21 | Improvements in secret combination electric switches for ignition and other circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB879634A GB435197A (en) | 1934-03-21 | 1934-03-21 | Improvements in secret combination electric switches for ignition and other circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB435197A true GB435197A (en) | 1935-09-17 |
Family
ID=9859408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB879634A Expired GB435197A (en) | 1934-03-21 | 1934-03-21 | Improvements in secret combination electric switches for ignition and other circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB435197A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2213195B (en) * | 1987-12-07 | 1992-06-03 | David Hoffman | Anti-theft arrangement for a vehicle |
-
1934
- 1934-03-21 GB GB879634A patent/GB435197A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2213195B (en) * | 1987-12-07 | 1992-06-03 | David Hoffman | Anti-theft arrangement for a vehicle |
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