GB191302123A - Improvements in Apparatus for Locking and Unlocking Doors of Railway Carriages. - Google Patents
Improvements in Apparatus for Locking and Unlocking Doors of Railway Carriages.Info
- Publication number
- GB191302123A GB191302123A GB191302123DA GB191302123A GB 191302123 A GB191302123 A GB 191302123A GB 191302123D A GB191302123D A GB 191302123DA GB 191302123 A GB191302123 A GB 191302123A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- locking
- unlocking
- cylinder
- spring
- 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
- E05B51/00—Operating or controlling locks or other fastening devices by other non-mechanical means
- E05B51/02—Operating or controlling locks or other fastening devices by other non-mechanical means by pneumatic or hydraulic means
Landscapes
- Lock And Its Accessories (AREA)
Abstract
2123. Wilson, J. Jan. 27. Pneumatically - o p e - rated fastenings.-In an apparatus for locking and unlocking railway carriages, of the kind described in Specification 23,332/12, a retainer a on the doorjamb is arranged in front of the door latch a<2>, which is of the kind described in Specification 4031/11, and is adapted to be rotated to permit unfastening of the door except when locked in position by means of a pneumaticallyoperated piston or diaphragm. For this purpose, the retainer a, maintained in locking position by a spring a<4>, has a projection a<6>, Fig. 6, which is normally free to move within a gap of the piston-rod b<2>, but is held in locking engagement with the lower end b<4> of the pistonrod when the piston b<1> rises in the cylinder b. In the form of apparatus shown, the piston is raised by the formation of a vacuum in the cylinder b, which is connected with the trainpipe by a pipe b<5>; but in a modification in which the cylinder is inverted, compressed air may be employed. The spring a<4> may instead be of the uncoiling type, or may be replaced by a weight. As shown in Fig. 1, the latch a<2> may be combined with a spring-pressed latch-lock e, as described in Specification 12,815/12; and the whole apparatus is adapted for an emergency unlocking and for accelerated unlocking, as described in Specification 28,346/12.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191302123T | 1913-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191302123A true GB191302123A (en) | 1913-04-10 |
Family
ID=32577342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191302123D Expired GB191302123A (en) | 1913-01-27 | 1913-01-27 | Improvements in Apparatus for Locking and Unlocking Doors of Railway Carriages. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB191302123A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2857534A (en) * | 1954-07-06 | 1958-10-21 | Sperry Rand Corp | Combination electric motor and gyroscopic structures |
-
1913
- 1913-01-27 GB GB191302123D patent/GB191302123A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2857534A (en) * | 1954-07-06 | 1958-10-21 | Sperry Rand Corp | Combination electric motor and gyroscopic structures |
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