GB1528919A - Permutation locks - Google Patents

Permutation locks

Info

Publication number
GB1528919A
GB1528919A GB5450774A GB5450774A GB1528919A GB 1528919 A GB1528919 A GB 1528919A GB 5450774 A GB5450774 A GB 5450774A GB 5450774 A GB5450774 A GB 5450774A GB 1528919 A GB1528919 A GB 1528919A
Authority
GB
United Kingdom
Prior art keywords
permutation
clutch
dec
locking bolt
rotatable
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
GB5450774A
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.)
ENVIRONMENT SEC OF STATE FOR
Original Assignee
ENVIRONMENT SEC OF STATE FOR
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 ENVIRONMENT SEC OF STATE FOR filed Critical ENVIRONMENT SEC OF STATE FOR
Priority to GB5450774A priority Critical patent/GB1528919A/en
Priority to DE19752556682 priority patent/DE2556682A1/en
Priority to FR7538673A priority patent/FR2295193A1/en
Publication of GB1528919A publication Critical patent/GB1528919A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00—Permutation or combination locks; Puzzle locks

Abstract

1528919 Permutation locks ENVIRONMENT SECRETARY OF STATE FOR 17 Dec 1975 [17 Dec 1974] 54507/74 Heading E2A A permutation lock with rotatable permutation discs comprises a clutch which engages sufficiently to operate a locking bolt only when a permutation disc operating dial rotates at a speed greater than a critical value. The clutch may comprise (a) a gear clutter mechanism 15 including pallet 16; (b) a centrifugal clutch including curved spring arm 22, 23, weights 24, 25 and rim 26 acting as driven member; or (c) a peristaltic device including rotatable plate 29 and portion 31 of a liquid filled flexible walled tube 27 containing small orifice 32, which portion 31 is connected (not shown) to the locking bolt.
GB5450774A 1974-12-17 1974-12-17 Permutation locks Expired GB1528919A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB5450774A GB1528919A (en) 1974-12-17 1974-12-17 Permutation locks
DE19752556682 DE2556682A1 (en) 1974-12-17 1975-12-16 PERMUTATION LOCK
FR7538673A FR2295193A1 (en) 1974-12-17 1975-12-17 IMPROVEMENTS TO COMBINATION LOCKS USED IN PARTICULAR IN SAFE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5450774A GB1528919A (en) 1974-12-17 1974-12-17 Permutation locks

Publications (1)

Publication Number Publication Date
GB1528919A true GB1528919A (en) 1978-10-18

Family

ID=10471241

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5450774A Expired GB1528919A (en) 1974-12-17 1974-12-17 Permutation locks

Country Status (3)

Country Link
DE (1) DE2556682A1 (en)
FR (1) FR2295193A1 (en)
GB (1) GB1528919A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8524683U1 (en) * 1985-08-29 1985-10-31 Mauer GmbH & Co KG, 5628 Heiligenhaus Combination lock
CN103015806B (en) * 2012-10-12 2015-02-11 韦星光 Mechanical password device

Also Published As

Publication number Publication date
FR2295193A1 (en) 1976-07-16
DE2556682A1 (en) 1976-07-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee