GB755251A - Improvements in or relating to cylinder mortice latches or locks - Google Patents

Improvements in or relating to cylinder mortice latches or locks

Info

Publication number
GB755251A
GB755251A GB525854A GB525854A GB755251A GB 755251 A GB755251 A GB 755251A GB 525854 A GB525854 A GB 525854A GB 525854 A GB525854 A GB 525854A GB 755251 A GB755251 A GB 755251A
Authority
GB
United Kingdom
Prior art keywords
cylinder
followers
latch
bolt
casing
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
GB525854A
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.)
Albert Marston & Co Ltd
Original Assignee
Albert Marston & Co Ltd
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 Albert Marston & Co Ltd filed Critical Albert Marston & Co Ltd
Priority to GB525854A priority Critical patent/GB755251A/en
Publication of GB755251A publication Critical patent/GB755251A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C1/00—Fastening devices with bolts moving rectilinearly
    • E05C1/08—Fastening devices with bolts moving rectilinearly with latching action
    • E05C1/12—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C1/16—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the handle or member moving essentially in a plane substantially parallel to the wing or frame

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

755,251. Locks. MARSTON & CO., Ltd., A., BRYAN, S. P., and WILLIAMS, H. M. Feb. 23, 1955 [Feb. 23, 1954], No. 5258/54. Class 44. In a cylinder mortice latch, the latch bolt is operated by one or more angularly movable followers of such form as to allow for the passage therethrough of screws passing through the latch casing between the cylinder on one side of the door and a fixing plate on the other side. As shown, a spring-loaded latch bolt 14 Fig. 3, is provided with-lugs 18 on 'both sides of parallel arms which are engaged by projections 19 on either of two identical followers 20 and rotatably mounted in the latch casing. The followers are rotated by a bar or tongue on a key-operated cylinder or a handle. The cylinder is fixed by screws passing through a fixing plate for the inner side of the door and through the latch casing into tapped holes in a lug on the inner end of the cylinder, an arcuate slot 29 being formed in each follower to permit full angular movement of the followers to retract the bolt. Preferably the latch bolt is reversible, holes 28 in the latch casing and slots 29 in the followers being formed symmetrically of the axis of the followers for this purpose. The nose of the bolt engages a striking plate, Fig. 6, having a lug 32 to prevent forcing of the bolt by a tool inserted through the door frame.
GB525854A 1954-02-23 1954-02-23 Improvements in or relating to cylinder mortice latches or locks Expired GB755251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB525854A GB755251A (en) 1954-02-23 1954-02-23 Improvements in or relating to cylinder mortice latches or locks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB525854A GB755251A (en) 1954-02-23 1954-02-23 Improvements in or relating to cylinder mortice latches or locks

Publications (1)

Publication Number Publication Date
GB755251A true GB755251A (en) 1956-08-22

Family

ID=9792702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB525854A Expired GB755251A (en) 1954-02-23 1954-02-23 Improvements in or relating to cylinder mortice latches or locks

Country Status (1)

Country Link
GB (1) GB755251A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1036560C2 (en) * 2009-02-11 2010-08-12 Benno Maathuis LOCK AND MODIFICATION PACKAGE FOR A LOCK.
EP2549035A1 (en) * 2011-07-21 2013-01-23 Adeos Lock housing with an anti-panic case and a European type half-cylinder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1036560C2 (en) * 2009-02-11 2010-08-12 Benno Maathuis LOCK AND MODIFICATION PACKAGE FOR A LOCK.
EP2549035A1 (en) * 2011-07-21 2013-01-23 Adeos Lock housing with an anti-panic case and a European type half-cylinder
FR2978185A1 (en) * 2011-07-21 2013-01-25 Adeos LOCK HOUSING EQUIPPED WITH AN ANTI-PANIC PLASTER AND A EUROPEAN-TYPE HALF-CYLINDER.

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