GB322103A - Improved means for preventing unauthorised interference with door and similar latches - Google Patents
Improved means for preventing unauthorised interference with door and similar latchesInfo
- Publication number
- GB322103A GB322103A GB3547728A GB3547728A GB322103A GB 322103 A GB322103 A GB 322103A GB 3547728 A GB3547728 A GB 3547728A GB 3547728 A GB3547728 A GB 3547728A GB 322103 A GB322103 A GB 322103A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cover
- door
- flanges
- frame
- screws
- 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
- E05B13/00—Devices preventing the key or the handle or both from being used
- E05B13/001—Covers preventing access to handles or keys
Landscapes
- Casings For Electric Apparatus (AREA)
Abstract
322,103. Moodie, A. A. Dec. 1, 1928. Locks, cases for.-To prevent operation of a night latch &c. from outside by gaining access to the inside knob through a broken door-panel &c. a cover or casing is provided to enclose the knob, the cover being removable only when the door is open. A frame a secured by screws b or integral with the lock casing d provides channels g into which flanges h on a cover may be slid from the edge c of the door. An upstanding abutment plate e, integral with frame a or separately secured by screws, closes the inner end of the cover when the latter is in place. The other end k of the cover is cut away as shown to allow passage of the latch bolt m into the staple &c. q. When the door is closed, removal of the cover is prevented by the flange p of the staple abutting against the end k of the cover. In a modification the frame a and flanges h are interrupted to provide tongues which allow application of the cover by a limited sliding movement. In another form, the flanges h have keyhole slots engaging headed screws or projections on the door.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3547728A GB322103A (en) | 1928-12-01 | 1928-12-01 | Improved means for preventing unauthorised interference with door and similar latches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3547728A GB322103A (en) | 1928-12-01 | 1928-12-01 | Improved means for preventing unauthorised interference with door and similar latches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB322103A true GB322103A (en) | 1929-11-28 |
Family
ID=10378159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3547728A Expired GB322103A (en) | 1928-12-01 | 1928-12-01 | Improved means for preventing unauthorised interference with door and similar latches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB322103A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2461676A (en) * | 1946-01-25 | 1949-02-15 | Nicholas M Budak | Lock protector |
US2798753A (en) * | 1954-01-04 | 1957-07-09 | Wade Edith Evelyn | Guard for chained door bolts |
US3731506A (en) * | 1971-05-10 | 1973-05-08 | O Greene | Theft-preventive attachment for locks |
US4127967A (en) * | 1976-10-06 | 1978-12-05 | Franzl Gertrude K | Burglar-resistant door assembly |
US5316353A (en) * | 1988-07-11 | 1994-05-31 | Mckernan John L | Sleeve for dead bolt |
US5970756A (en) * | 1997-04-03 | 1999-10-26 | Federal Security Systems, Inc. | Dead bolt lock assembly cover |
US6301941B1 (en) * | 2000-01-21 | 2001-10-16 | Morgan L. Nicholsfigueiredo | Dead-bolt locking device |
-
1928
- 1928-12-01 GB GB3547728A patent/GB322103A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2461676A (en) * | 1946-01-25 | 1949-02-15 | Nicholas M Budak | Lock protector |
US2798753A (en) * | 1954-01-04 | 1957-07-09 | Wade Edith Evelyn | Guard for chained door bolts |
US3731506A (en) * | 1971-05-10 | 1973-05-08 | O Greene | Theft-preventive attachment for locks |
US4127967A (en) * | 1976-10-06 | 1978-12-05 | Franzl Gertrude K | Burglar-resistant door assembly |
US5316353A (en) * | 1988-07-11 | 1994-05-31 | Mckernan John L | Sleeve for dead bolt |
US5970756A (en) * | 1997-04-03 | 1999-10-26 | Federal Security Systems, Inc. | Dead bolt lock assembly cover |
US6301941B1 (en) * | 2000-01-21 | 2001-10-16 | Morgan L. Nicholsfigueiredo | Dead-bolt locking device |
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