GB1377827A - Locks - Google Patents

Locks

Info

Publication number
GB1377827A
GB1377827A GB1897472A GB1897472A GB1377827A GB 1377827 A GB1377827 A GB 1377827A GB 1897472 A GB1897472 A GB 1897472A GB 1897472 A GB1897472 A GB 1897472A GB 1377827 A GB1377827 A GB 1377827A
Authority
GB
United Kingdom
Prior art keywords
locks
metalsmiths
vickers
chrome
heading
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
GB1897472A
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.)
Sylatech Ltd
Original Assignee
Micro Metalsmiths 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 Micro Metalsmiths Ltd filed Critical Micro Metalsmiths Ltd
Priority to GB1897472A priority Critical patent/GB1377827A/en
Publication of GB1377827A publication Critical patent/GB1377827A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/16—Use of special materials for parts of locks
    • E05B15/1614—Use of special materials for parts of locks of hard materials, to prevent drilling

Landscapes

  • Coating By Spraying Or Casting (AREA)

Abstract

1377827 Locks MICRO METALSMITHS Ltd 8 May 1973 [24 April 1972] 18974/72 Heading E2A [Also in Division C7] Destruction of a door lock by drilling is prevented by spray-coating its body with a layer of hard, particulate material. This material may be alumina or a nickel-chrome-boron alloy, and has a hardness 2 of at least 800 Vickers.
GB1897472A 1973-05-08 1973-05-08 Locks Expired GB1377827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1897472A GB1377827A (en) 1973-05-08 1973-05-08 Locks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1897472A GB1377827A (en) 1973-05-08 1973-05-08 Locks

Publications (1)

Publication Number Publication Date
GB1377827A true GB1377827A (en) 1974-12-18

Family

ID=10121644

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1897472A Expired GB1377827A (en) 1973-05-08 1973-05-08 Locks

Country Status (1)

Country Link
GB (1) GB1377827A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2618196A1 (en) * 1975-04-30 1976-11-11 Gkn Stenman Ab METHOD AND DEVICE FOR THE BREAK-PROOF PROTECTION OF A LOCKING MECHANISM IN A LOCK CASE, EQUIPPED WITH LOCKING PISTON AND / OR DROP PISTON
DE3030393A1 (en) * 1980-08-12 1982-02-18 Fa. Wilhelm Karrenberg, 5620 Velbert Drill resistant mortice door lock - has bottom blocking plate and rear angular plate protecting tumbler plate
DE102010047020A1 (en) 2010-09-30 2012-04-05 Obeko Gmbh Producing an ultrahard protective coating on components of a safety equipment, comprises providing the component comprising a surface to be coated, and applying a coating mixture to the surface by a thermal spraying method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2618196A1 (en) * 1975-04-30 1976-11-11 Gkn Stenman Ab METHOD AND DEVICE FOR THE BREAK-PROOF PROTECTION OF A LOCKING MECHANISM IN A LOCK CASE, EQUIPPED WITH LOCKING PISTON AND / OR DROP PISTON
DE3030393A1 (en) * 1980-08-12 1982-02-18 Fa. Wilhelm Karrenberg, 5620 Velbert Drill resistant mortice door lock - has bottom blocking plate and rear angular plate protecting tumbler plate
DE102010047020A1 (en) 2010-09-30 2012-04-05 Obeko Gmbh Producing an ultrahard protective coating on components of a safety equipment, comprises providing the component comprising a surface to be coated, and applying a coating mixture to the surface by a thermal spraying method

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees