GB639171A - Improvements in or relating to locks - Google Patents
Improvements in or relating to locksInfo
- Publication number
- GB639171A GB639171A GB33655/47A GB3365547A GB639171A GB 639171 A GB639171 A GB 639171A GB 33655/47 A GB33655/47 A GB 33655/47A GB 3365547 A GB3365547 A GB 3365547A GB 639171 A GB639171 A GB 639171A
- Authority
- GB
- United Kingdom
- Prior art keywords
- key
- plug
- conical recess
- locks
- lock
- 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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/0042—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with additional key identifying function, e.g. with use of additional key operated rotor-blocking elements, not of split pin tumbler type
Landscapes
- Lock And Its Accessories (AREA)
Abstract
639,171. Barrel locks. MANTSAS, J. E. Dec. 19, 1947, No. 33655. Convention date, Oct. 22, 1941. [Class 44] The revolving cylinder of a barrel lock is provided with a plug 8 mounted transversely and adapted to co-operate with a conical recess 9 in the wall of the lock casing 1 so that as the key is turned from the closing position, the plug is displaced to engage in a conical recess 10 in the side of the key to prevent the key being withdrawn. The bottoms of the notches 11 in the key are formed flat and parallel to the axis of the key so that any small withdrawing movement permitted by the plug 8 does not cause the locking pins 3 to be forced against the lock casing with consequent damage.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI639171X | 1941-10-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB639171A true GB639171A (en) | 1950-06-21 |
Family
ID=8556188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33655/47A Expired GB639171A (en) | 1941-10-22 | 1947-12-19 | Improvements in or relating to locks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB639171A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3418833A (en) * | 1966-08-15 | 1968-12-31 | Chicago Lock Co | Tamperproof cylinder lock |
US3742744A (en) * | 1970-01-23 | 1973-07-03 | Winkhaus Fa August | Pin tumbler lock system |
US5181406A (en) * | 1990-08-25 | 1993-01-26 | Heinz Wolter | Locking device consisting of key and locking cylinder |
US5291766A (en) * | 1990-01-25 | 1994-03-08 | Schulte-Schlagbaum Aktiengesellschaft | Lock with locking function released by inserting a key card with a magnetized region |
WO1998007938A1 (en) * | 1996-08-19 | 1998-02-26 | Mul-T-Lock Technologies Ltd. | Improved lock housing |
GB2326907A (en) * | 1997-07-01 | 1999-01-06 | Camlock Systems Plc | Door lock |
US7040126B2 (en) | 2002-04-09 | 2006-05-09 | Master Lock Company | Discriminating mechanism for a pin tumbler lock |
-
1947
- 1947-12-19 GB GB33655/47A patent/GB639171A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3418833A (en) * | 1966-08-15 | 1968-12-31 | Chicago Lock Co | Tamperproof cylinder lock |
US3742744A (en) * | 1970-01-23 | 1973-07-03 | Winkhaus Fa August | Pin tumbler lock system |
US5291766A (en) * | 1990-01-25 | 1994-03-08 | Schulte-Schlagbaum Aktiengesellschaft | Lock with locking function released by inserting a key card with a magnetized region |
US5181406A (en) * | 1990-08-25 | 1993-01-26 | Heinz Wolter | Locking device consisting of key and locking cylinder |
WO1998007938A1 (en) * | 1996-08-19 | 1998-02-26 | Mul-T-Lock Technologies Ltd. | Improved lock housing |
GB2326907A (en) * | 1997-07-01 | 1999-01-06 | Camlock Systems Plc | Door lock |
GB2326907B (en) * | 1997-07-01 | 2001-09-05 | Camlock Systems Plc | Door lock |
US7040126B2 (en) | 2002-04-09 | 2006-05-09 | Master Lock Company | Discriminating mechanism for a pin tumbler lock |
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