GB1032243A - Telescopic fluid-pressure-operable jacks - Google Patents
Telescopic fluid-pressure-operable jacksInfo
- Publication number
- GB1032243A GB1032243A GB987064A GB987064A GB1032243A GB 1032243 A GB1032243 A GB 1032243A GB 987064 A GB987064 A GB 987064A GB 987064 A GB987064 A GB 987064A GB 1032243 A GB1032243 A GB 1032243A
- Authority
- GB
- United Kingdom
- Prior art keywords
- connection
- spring
- lock bolt
- jack
- heads
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
1,032,243. Hydraulic jacks. DOWTY ROTOL Ltd. Feb. 24, 1965 [March 9, 1964], No. 9870/64. Heading B8J. An hydraulic jack comprises locking means which when operative permits the jack to be extended only for a predetermined part of its travel, but when released permits extension to continue for the full length of travel. As shown, a lock bolt 40 spring-urged by a coil spring 41 holds claw-heads 39 on spring fingers 38 in engagement with an inner surface 28 of a member 19. Pressure liquid introduced into a connection 13, a connection 14 being connected to exhaust, extends a piston rod 16 in a cylinder 12 until a face 21 on the rod 16 reaches an abutment 21 on the member 19. To extend the jack fully, pressure liquid is introduced into a connection 33, a connection 34 being connected to exhaust, to move a piston 31 to shift the lock bolt 40 against the spring 41 and release the claw-heads 39 to be sprung inwards allowing the member 19 to move clear. A lock indicator 42 having an inner element 43 which engages with the lock bolt 40 is provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB987064A GB1032243A (en) | 1964-03-09 | 1964-03-09 | Telescopic fluid-pressure-operable jacks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB987064A GB1032243A (en) | 1964-03-09 | 1964-03-09 | Telescopic fluid-pressure-operable jacks |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1032243A true GB1032243A (en) | 1966-06-08 |
Family
ID=9880301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB987064A Expired GB1032243A (en) | 1964-03-09 | 1964-03-09 | Telescopic fluid-pressure-operable jacks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1032243A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103038131A (en) * | 2010-02-10 | 2013-04-10 | 梅西耶-道提有限公司 | Landing gear with steerable axle |
EP3569873A1 (en) * | 2018-05-18 | 2019-11-20 | Safran Landing Systems | Telescopic actuator with automatic locking |
-
1964
- 1964-03-09 GB GB987064A patent/GB1032243A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103038131A (en) * | 2010-02-10 | 2013-04-10 | 梅西耶-道提有限公司 | Landing gear with steerable axle |
WO2011098745A3 (en) * | 2010-02-10 | 2013-05-02 | Messier-Dowty Ltd | Landing gear with steerable axle |
US8608105B2 (en) | 2010-02-10 | 2013-12-17 | Messier-Dowty Ltd | Steerable axle |
CN103038131B (en) * | 2010-02-10 | 2016-01-20 | 梅西耶-道提有限公司 | There is alighting gear and the method for operation thereof of bogie truck |
EP3569873A1 (en) * | 2018-05-18 | 2019-11-20 | Safran Landing Systems | Telescopic actuator with automatic locking |
FR3081237A1 (en) * | 2018-05-18 | 2019-11-22 | Safran Landing Systems | TELESCOPIC ACTUATOR WITH AUTOMATIC LOCK |
US10801530B2 (en) | 2018-05-18 | 2020-10-13 | Safran Landing Systems | Telescopic actuator with automatic locking |
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