GB775098A - Cylinder locks - Google Patents

Cylinder locks

Info

Publication number
GB775098A
GB775098A GB323854A GB323854A GB775098A GB 775098 A GB775098 A GB 775098A GB 323854 A GB323854 A GB 323854A GB 323854 A GB323854 A GB 323854A GB 775098 A GB775098 A GB 775098A
Authority
GB
United Kingdom
Prior art keywords
barrel
plunger
key
keyway
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
Application number
GB323854A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB323854A priority Critical patent/GB775098A/en
Publication of GB775098A publication Critical patent/GB775098A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/14—Closures or guards for keyholes
    • 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

Abstract

775,098. Barrel locks. BIRO, L. J. March 20, 1954, No. 3238/54. Class 44. An anti-picking device in a revolving barrel lock of the pin tumbler type comprises a spring- loaded plunger mounted in the barrel which screens the tumblers by blocking the keyway and, when deflected to clear the keyway, locks the barrel. The plunger 21, Fig. 7, is mounted on a spring arm 26 secured in the barrel 12, and bevelled faces 18, 19, on the side of a key 16 deflect the plunger into engagement with a recess 22 in the lock cylinder 10 when the key is inserted or withdrawn. A slot 17 in the key 16 permits the plunger to free the barrel when the key is fully inserted. A depending flange 24 on the plunger 21 screens the lower part of the keyway. The outermost pin tumblers and locking pins are loosely fitted in their guideways to prevent picking the lock by lodging the locking pins on an arris of the barrel 12.
GB323854A 1954-03-20 1954-03-20 Cylinder locks Expired GB775098A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB323854A GB775098A (en) 1954-03-20 1954-03-20 Cylinder locks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB323854A GB775098A (en) 1954-03-20 1954-03-20 Cylinder locks

Publications (1)

Publication Number Publication Date
GB775098A true GB775098A (en) 1957-05-22

Family

ID=9754556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB323854A Expired GB775098A (en) 1954-03-20 1954-03-20 Cylinder locks

Country Status (1)

Country Link
GB (1) GB775098A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180289A (en) * 1985-09-16 1987-03-25 Pan Yau Jung Cylinder lock with anti-picking device
WO2001095693A3 (en) * 2000-06-09 2002-07-25 Michael Cohnitz Olshausen Lock-cylinder with pop-up indicators
WO2014096442A2 (en) 2012-12-23 2014-06-26 Certaflex Bv Cylinder lock and combination of such a lock and key
GB2607081A (en) * 2021-05-27 2022-11-30 Shen Yizhou Lock assembly

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180289A (en) * 1985-09-16 1987-03-25 Pan Yau Jung Cylinder lock with anti-picking device
WO2001095693A3 (en) * 2000-06-09 2002-07-25 Michael Cohnitz Olshausen Lock-cylinder with pop-up indicators
WO2014096442A2 (en) 2012-12-23 2014-06-26 Certaflex Bv Cylinder lock and combination of such a lock and key
US10066419B2 (en) 2012-12-23 2018-09-04 Almotec B.V. Cylinder lock and combination of such a lock and key
GB2607081A (en) * 2021-05-27 2022-11-30 Shen Yizhou Lock assembly

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