GB190221714A - Improvements in or relating to Permutation Locks - Google Patents
Improvements in or relating to Permutation LocksInfo
- Publication number
- GB190221714A GB190221714A GB190221714DA GB190221714A GB 190221714 A GB190221714 A GB 190221714A GB 190221714D A GB190221714D A GB 190221714DA GB 190221714 A GB190221714 A GB 190221714A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tumblers
- cover
- holes
- bolt
- alignment
- 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
Landscapes
- Time Recorders, Dirve Recorders, Access Control (AREA)
Abstract
21,714. Boult, A. J., [Mills, M. B.]. Oct. 6. Locks, permutation.-In permutation locks having tumblers w h i c h are brought into register to enable the b o I t to be actuated, a cover is provided to prevent the combination from being discovered, by the senses of feeling or hearing. A plate A is provided with slots to receive tumblers or discs B, spacing-bosses being secured to the tongues formed by the slots. The tumblers are mounted on a shaft d, and have teeth provided with numerals &c., backward rotation of the tumblers being prevented by spring pawls. Each tumbler is provided with an eccentric hole f, and the bolt E has dogs E<1> adapted to engage these holes, so that the bolt may be withdrawn when the holes f are brought into proper alignment. A cover D, preferably provided with disc-shaped ends D<1> journalled on the shaft d, is arranged to cover or uncover the tumblers. The ends D' are provided with holes adapted to be brought into alignment with the dogs E<1> when the cover is closed to hide the tumblers. In order to retract the bolt, when shot, it is necessary to shoot it still further, and then to rotate the cover so as to disclose the tumblers. The tumblers are then set to bring the holes f into alignment, and the cover is returned to its former position so as to bring the holes f and the holes in the ends D' into alignment to enable the bolt to be actuated. It is difficult to discover the combination, as when the cover is open, the dogs E<1> take against the end of the cover, and when the cover is closed the tumblers are not visible.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190221714T | 1902-10-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190221714A true GB190221714A (en) | 1902-12-18 |
Family
ID=32431435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190221714D Expired GB190221714A (en) | 1902-10-06 | 1902-10-06 | Improvements in or relating to Permutation Locks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190221714A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3766760A (en) * | 1972-06-02 | 1973-10-23 | J Mohrhauser | Multiple wheel combination lock |
-
1902
- 1902-10-06 GB GB190221714D patent/GB190221714A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3766760A (en) * | 1972-06-02 | 1973-10-23 | J Mohrhauser | Multiple wheel combination lock |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3605462A (en) | One way key operated locking mechanism | |
US4290287A (en) | Double changeable key lock for safe deposit boxes and the like | |
GB190221714A (en) | Improvements in or relating to Permutation Locks | |
US2766608A (en) | Antimanipulative combination lock | |
US721802A (en) | Cylinder-lock. | |
US2089300A (en) | Pintle lock | |
US582367A (en) | Edward j | |
US653946A (en) | Door-lock. | |
US479412A (en) | foster | |
US2070619A (en) | Combined lock and latch | |
US830014A (en) | Lock. | |
US524148A (en) | roche | |
US1120816A (en) | Keyhole-lock. | |
US1092843A (en) | Combination-lock. | |
US712830A (en) | Permutation-lock. | |
US929637A (en) | Lock and latch mechanism. | |
US971406A (en) | Padlock. | |
US744858A (en) | Lock for post-office lock-boxes. | |
US240783A (en) | Emoey stockwell | |
US2690665A (en) | Cylinder lock | |
US1201546A (en) | Keyless padlock. | |
US319058A (en) | Edwaed w | |
US233950A (en) | stockwell | |
US605493A (en) | Monroe le vino | |
US940300A (en) | Lock. |