GB269076A - Improvements in safety devices for locks - Google Patents

Improvements in safety devices for locks

Info

Publication number
GB269076A
GB269076A GB2700426A GB2700426A GB269076A GB 269076 A GB269076 A GB 269076A GB 2700426 A GB2700426 A GB 2700426A GB 2700426 A GB2700426 A GB 2700426A GB 269076 A GB269076 A GB 269076A
Authority
GB
United Kingdom
Prior art keywords
locks
safety devices
groove
instrument
frederiksen
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
GB2700426A
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 GB2700426A priority Critical patent/GB269076A/en
Publication of GB269076A publication Critical patent/GB269076A/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
    • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
    • E05B17/2003—Preventing opening by insertion of a tool, e.g. flexible, between door and jamb to withdraw the bolt

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

269,076. Frederiksen, E. Oct. 28, 1926. Latches, sliding; striking-plates for. -In cylinder locks for doors wherein the inclined surface of the bolt 4 is provided with a groove 5 to prevent its being forced back by the insertion of an instrument, there is arranged on the door frame 2 a guide-plate 6 having a projection 7 which ensures the guiding of the inserted instrument into the groove 5.
GB2700426A 1926-10-28 1926-10-28 Improvements in safety devices for locks Expired GB269076A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2700426A GB269076A (en) 1926-10-28 1926-10-28 Improvements in safety devices for locks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2700426A GB269076A (en) 1926-10-28 1926-10-28 Improvements in safety devices for locks

Publications (1)

Publication Number Publication Date
GB269076A true GB269076A (en) 1927-04-14

Family

ID=10252616

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2700426A Expired GB269076A (en) 1926-10-28 1926-10-28 Improvements in safety devices for locks

Country Status (1)

Country Link
GB (1) GB269076A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4154468A (en) * 1977-10-11 1979-05-15 Leon Luis G Safety devices for door locks of the spring-loaded, sliding bolt type
GB2217371A (en) * 1988-03-25 1989-10-25 Frank William Evans Door lock guard
ITRM20130149A1 (en) * 2013-03-13 2014-09-14 Rossi Patrizio De ANTI-CRYPING SCROCCO FOR LOCKS.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4154468A (en) * 1977-10-11 1979-05-15 Leon Luis G Safety devices for door locks of the spring-loaded, sliding bolt type
GB2217371A (en) * 1988-03-25 1989-10-25 Frank William Evans Door lock guard
ITRM20130149A1 (en) * 2013-03-13 2014-09-14 Rossi Patrizio De ANTI-CRYPING SCROCCO FOR LOCKS.

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