GB615168A - Improvements in or relating to door locks - Google Patents
Improvements in or relating to door locksInfo
- Publication number
- GB615168A GB615168A GB2274546A GB2274546A GB615168A GB 615168 A GB615168 A GB 615168A GB 2274546 A GB2274546 A GB 2274546A GB 2274546 A GB2274546 A GB 2274546A GB 615168 A GB615168 A GB 615168A
- Authority
- GB
- United Kingdom
- Prior art keywords
- head
- slide
- spring
- plate
- lock
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/04—Locks or fastenings with special structural characteristics for alternative use on the right-hand or left-hand side of wings
- E05B63/044—Locks or fastenings with special structural characteristics for alternative use on the right-hand or left-hand side of wings with reversible bolt or bolt head
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
615,168. Locks and latches. BACKHOUSE, H. T. July 30, 1946, No. 22745. [Class 44] In a door lock or latch of the kind in which the case has a removable false front cover-plate through which the head of the latch-bolt extends, and in which both the casing and the cover-plate embrace the bolt head so as to prevent rotation thereof, the bolt head 100 is arranged to be withdrawable, against the action of a spring 128, beyond the lock casing and rotatable in order to change the hands of the lock, and the extent to which the head may be withdrawn is so limited that it cannot be withdrawn beyond the cover-plate 104, so that the latter must be removed before the aspect of the head can be reversed. As shown, the latch head 100 is mounted slidably on a slide 101 by means of a screw 126, and a spring 128 which normally holds the head up to the slide 101, but allows it to be pulled out only to the extent shown in chain lines, at which position the spring becomes coil bound. As the inner end of the head is still within the opening in the plate 104, it cannot be rotated until the latter is removed. In the lock shown the slide 101 is outwardly urged by a spring 105, and is withdrawable by means of followers 108, 109 mounted on the spindles of inside and outside handles. A pawl 111 pivoted to the casing has one arm 113 engageable with the slide to prevent withdrawal, an arm 114 engageable with the followers 108, 109 on turning the latter in locking direction, and an arm 115 constituting an abutment engageable with the followers to stop movement thereof in looking direction. Specifications 496,776 and 572,586 are referred-to in the Provisional Specification.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2274546A GB615168A (en) | 1946-07-30 | 1946-07-30 | Improvements in or relating to door locks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2274546A GB615168A (en) | 1946-07-30 | 1946-07-30 | Improvements in or relating to door locks |
Publications (1)
Publication Number | Publication Date |
---|---|
GB615168A true GB615168A (en) | 1949-01-03 |
Family
ID=10184410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2274546A Expired GB615168A (en) | 1946-07-30 | 1946-07-30 | Improvements in or relating to door locks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB615168A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2230551A (en) * | 1989-04-07 | 1990-10-24 | J E Reynolds & Company Ltd | Latch bolt assembly |
-
1946
- 1946-07-30 GB GB2274546A patent/GB615168A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2230551A (en) * | 1989-04-07 | 1990-10-24 | J E Reynolds & Company Ltd | Latch bolt assembly |
GB2230551B (en) * | 1989-04-07 | 1993-05-05 | J E Reynolds & Company Ltd | Reversible latch bolt assemblies |
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