GB832042A - Improvements in ball-jointed hydraulic or pneumatic plug-in connections - Google Patents
Improvements in ball-jointed hydraulic or pneumatic plug-in connectionsInfo
- Publication number
- GB832042A GB832042A GB4807/58A GB480758A GB832042A GB 832042 A GB832042 A GB 832042A GB 4807/58 A GB4807/58 A GB 4807/58A GB 480758 A GB480758 A GB 480758A GB 832042 A GB832042 A GB 832042A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- ball
- foot
- fluid
- inner prop
- 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
- 239000012530 fluid Substances 0.000 abstract 6
- 238000012856 packing Methods 0.000 abstract 1
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
- F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
- F15B15/04—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member with oscillating cylinder
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Pivots And Pivotal Connections (AREA)
- Joints Allowing Movement (AREA)
Abstract
832,042. Mine roof supports. RHEINSTAHL WANHEIM G.m.b.H. Feb. 13, 1958 [Feb. 21, 1957], No. 4807/58. Class 20(2) [Also in Group XXVIII] In a ball joint between the foot 1 of a hydraulic pit prop and a base member 4 a two-part ball 18 mounted in the foot 1 comprises ducts 24, 25 which open into concentric tubular members 20, 22 constituting an extension of the ball, the members 20, 22 being adapted to be pushed into a chamber 31 in the member 4 in order to establish the connection between the foot 1 and the member 4. As shown, the foot 1 extending through a rubber sleeve 7 rests in a spherical cup 5 in the member 4. and is connected by a bore 13 to a high pressure chamber 14 wherein the inner prop member, not shown, is raised or lowered. A pressure fluid storage chamber situated above the inner prop member is connected to the foot 1 by a pipe 3 which passes through the inner prop member. Annular discs 34, 35 are sealingly mounted in the chamber 31. In order to set the prop against a load, fluid under pressure is pumped through a pipe 46 and passes through the parts 44, 42, 23, 13 to the chamber 14 so as to wave the inner prop member against the load. The fluid is returned from the storage chamber to the pump by way of the parts 3, 15, 16, 24, 25, 26, 41, 45. A conical grooved-ring packing 28 fitted over the part 19 of the ball forms a seal against fluid pressure building up in the chamber 14. The effect of fluid pressure on the ball half 19 is balanced by fluid pressure acting on a sleeve 40 fitted over the member 20.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE832042X | 1957-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB832042A true GB832042A (en) | 1960-04-06 |
Family
ID=6755200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4807/58A Expired GB832042A (en) | 1957-02-21 | 1958-02-13 | Improvements in ball-jointed hydraulic or pneumatic plug-in connections |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB832042A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454752A (en) * | 2014-10-20 | 2015-03-25 | 段黎明 | Stroke control universal strain angle hydraulic oil cylinder |
-
1958
- 1958-02-13 GB GB4807/58A patent/GB832042A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454752A (en) * | 2014-10-20 | 2015-03-25 | 段黎明 | Stroke control universal strain angle hydraulic oil cylinder |
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