GB537277A - Improvements in removable lock core - Google Patents

Improvements in removable lock core

Info

Publication number
GB537277A
GB537277A GB33002/39A GB3300239A GB537277A GB 537277 A GB537277 A GB 537277A GB 33002/39 A GB33002/39 A GB 33002/39A GB 3300239 A GB3300239 A GB 3300239A GB 537277 A GB537277 A GB 537277A
Authority
GB
United Kingdom
Prior art keywords
core
detent
lock core
slot
cylinder
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
GB33002/39A
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.)
Yale and Towne Manufacturing Co
Original Assignee
Yale and Towne Manufacturing Co
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 Yale and Towne Manufacturing Co filed Critical Yale and Towne Manufacturing Co
Publication of GB537277A publication Critical patent/GB537277A/en
Expired legal-status Critical Current

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

Landscapes

  • Motor Or Generator Frames (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Lock And Its Accessories (AREA)

Abstract

537,277. Locks, YALE & TOWNE MANUFACTURING CO. Dec. 28, 1939. No. 33002. Convention date, Jan. 14. [Class 44] In a revolving-barrel lock, the core 13 is retained in the cylinder 10 by a spring detent 22 pivoted on a pin 23 in the core and engaging a slot 26 in the cylinder. It is released by a special key 19 provided with a notch 28 into which the end 25 of the detent enters when the barrel 14 is turned by the key into the position shown in Fig. 3, whereby the detent leaves the slot 26 and permits withdrawal of the core.
GB33002/39A 1939-01-14 1939-12-28 Improvements in removable lock core Expired GB537277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US537277XA 1939-01-14 1939-01-14

Publications (1)

Publication Number Publication Date
GB537277A true GB537277A (en) 1941-06-16

Family

ID=21986157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33002/39A Expired GB537277A (en) 1939-01-14 1939-12-28 Improvements in removable lock core

Country Status (1)

Country Link
GB (1) GB537277A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444034A (en) * 1981-07-16 1984-04-24 Best Lock Corporation Pull-resistant lock core
US5226304A (en) * 1991-12-30 1993-07-13 Michael Scott Universal cylinder modification kit enables lock to have interchangeable care
EP0583951A1 (en) * 1992-08-13 1994-02-23 Emhart Inc. Cylinder for door lockset
US5970760A (en) * 1999-01-11 1999-10-26 Shen; Mu-Lin Lock core-changeable type auxiliary lock with improved pull-resistant structure
US6979029B2 (en) 2003-12-10 2005-12-27 Shen Mu-Lin Lock with increased torque-resisting capacity

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444034A (en) * 1981-07-16 1984-04-24 Best Lock Corporation Pull-resistant lock core
US5226304A (en) * 1991-12-30 1993-07-13 Michael Scott Universal cylinder modification kit enables lock to have interchangeable care
EP0583951A1 (en) * 1992-08-13 1994-02-23 Emhart Inc. Cylinder for door lockset
US5970760A (en) * 1999-01-11 1999-10-26 Shen; Mu-Lin Lock core-changeable type auxiliary lock with improved pull-resistant structure
US6979029B2 (en) 2003-12-10 2005-12-27 Shen Mu-Lin Lock with increased torque-resisting capacity

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