GB884403A - Improved door control mechanism - Google Patents
Improved door control mechanismInfo
- Publication number
- GB884403A GB884403A GB2751859A GB2751859A GB884403A GB 884403 A GB884403 A GB 884403A GB 2751859 A GB2751859 A GB 2751859A GB 2751859 A GB2751859 A GB 2751859A GB 884403 A GB884403 A GB 884403A
- Authority
- GB
- United Kingdom
- Prior art keywords
- doors
- valve
- switch
- closed
- inch
- 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
- E05B77/00—Vehicle locks characterised by special functions or purposes
- E05B77/46—Locking several wings simultaneously
- E05B77/50—Locking several wings simultaneously by pneumatic or hydraulic means
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Braking Systems And Boosters (AREA)
Abstract
884,403. Door operating appliances; remotely controlled fastenings. MANGANESE BRONZE & BRASS CO. Ltd. Aug. 10, 1960 [Aug. 12, 1959], No. 27518/59. Classes 44 and 65(1). A pair of doors diagrammatically represented by chain lines are locked by pneumatically operated bolts 9 which are actuated when the doors engage projections from the control valves 8 on closing. The main reservoir 2 is connected via a pressure reducing valve 3 to a reservoir R in which the pressure is maintained nearly constant (say 70 1bs./sq. inch); the emergency valve 4, one of which is located externally on each side of the vehicle carrying the door operating system, normally connects the reservoir R with the electro-pneumatic switch 5 which when closed supplies air to the pressure reducing valve 6 whereby the double acting cylinders 1 are operated at a reduced pressure (say 25 1bs. /sq. inch) to close the doors. The valves 8, opened when the doors are fully closed are connected in series to the switch 5 at a point before the valve 6; the locks 9 are connected in parallel and are both operated when both doors are closed; also connected in parallel with the locks 9 is a device 10 which may automatically apply brakes until the doors are closed or may control a "doors closed" indicator. When switch 5 is opened the locking system is exhausted to the atmosphere, unlocking the doors, and when the pressure is low enough exhausting the cylinder 1 through the one way valve 7. Simultaneously the switch 5 supplies high pressure air (say 70 1bs./sq. inch) to the centre of the cylinder 1, through the valve 11, to open the doors. In an emergency, operation of the valve 4 exhausts the door locking system and supplies high pressure air to the centre of the cylinders 1 via the valve 11, thus unlocking and opening the doors independently of the switch 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2751859A GB884403A (en) | 1959-08-12 | 1959-08-12 | Improved door control mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2751859A GB884403A (en) | 1959-08-12 | 1959-08-12 | Improved door control mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
GB884403A true GB884403A (en) | 1961-12-13 |
Family
ID=10260888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2751859A Expired GB884403A (en) | 1959-08-12 | 1959-08-12 | Improved door control mechanism |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB884403A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109958382A (en) * | 2019-04-22 | 2019-07-02 | 中国科学院武汉病毒研究所 | Urgent shutter door PBU pushbutton unit and shutter door method |
-
1959
- 1959-08-12 GB GB2751859A patent/GB884403A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109958382A (en) * | 2019-04-22 | 2019-07-02 | 中国科学院武汉病毒研究所 | Urgent shutter door PBU pushbutton unit and shutter door method |
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