GB466937A - Electric circuit breaker controlled by a combination lock device, suitable in particular for use as an anti-theft device for automobile vehicles - Google Patents
Electric circuit breaker controlled by a combination lock device, suitable in particular for use as an anti-theft device for automobile vehiclesInfo
- Publication number
- GB466937A GB466937A GB2587436A GB2587436A GB466937A GB 466937 A GB466937 A GB 466937A GB 2587436 A GB2587436 A GB 2587436A GB 2587436 A GB2587436 A GB 2587436A GB 466937 A GB466937 A GB 466937A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- plunger
- plungers
- contact
- depressed
- 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
- 230000000994 depressogenic effect Effects 0.000 abstract 4
- 230000000881 depressing effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
- H01H27/10—Switch operated by setting members according to a single predetermined combination out of several possible settings
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Abstract
466,937. Locking switches. TRIPONNEY, G. J. E. Sept. 23, 1936, No. 25874. [Class 38 (v)] A combination lock switch comprises a rotatable disc 38 carrying contacts (not shown) for engagement with fixed contacts (not shown) on a disc 41. The disc 38 is rotated into the " on " position by depressing a " contact " plunger 10 carrying a cam projection 44 which engages an aperture on the disc 38. A " stop " plunger 9 has a similar projection which on depression causes the disc 38 to rotate to the " off " position. The projection 44 of the " contact " plunger 10 also engages an aperture in a toothed rotary locking disc 34 which can only turn and allow the plunger 10 to be depressed if gaps 13 in locking slides 12 on a circle of plungers 6 are in line with the disc. Each of the slides 12, which are prevented from rotation by engagement with the casing is connected with the plunger 6 by a pin 57 engaging a helical track on the slide. Before a combination is set, all the notches 13 are in line with the disc 34 and the switch can be operated. To set a combination selected plungers are rotated to bring the notches out of alignment. Then before the disc 34 is freed, the selected plungers must be depressed where they are held by the engagement of collars 23 with spring pawls 24 on a rotary crown 7. Depression of the " contact " plunger 10 then operates the switch, and a second projection 43 on the plunger engages an aperture in the crown 7 to rotate it causing the pawls to free the depressed plungers. To prevent anyone turning the plungers and so altering the combination, a rotary locking disc 14 is provided next to the cover plate 1 and can be moved by a button 4 so that its teeth 17 engage flats 15 on the plungers 6 and prevent rotation. The disc 14 can only be rotated to the unlocking position when the " contact " button is depressed to allow the narrow part of an aperture 16 in the disc to pass a restricted portion of the stem of the " contact " plunger 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2587436A GB466937A (en) | 1936-09-23 | 1936-09-23 | Electric circuit breaker controlled by a combination lock device, suitable in particular for use as an anti-theft device for automobile vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2587436A GB466937A (en) | 1936-09-23 | 1936-09-23 | Electric circuit breaker controlled by a combination lock device, suitable in particular for use as an anti-theft device for automobile vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB466937A true GB466937A (en) | 1937-06-08 |
Family
ID=10234771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2587436A Expired GB466937A (en) | 1936-09-23 | 1936-09-23 | Electric circuit breaker controlled by a combination lock device, suitable in particular for use as an anti-theft device for automobile vehicles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB466937A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4718260A (en) * | 1983-11-25 | 1988-01-12 | Craig R. Bott | Combination lock |
-
1936
- 1936-09-23 GB GB2587436A patent/GB466937A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4718260A (en) * | 1983-11-25 | 1988-01-12 | Craig R. Bott | Combination lock |
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