GB556257A - Improvements in or relating to hydraulic apparatus - Google Patents
Improvements in or relating to hydraulic apparatusInfo
- Publication number
- GB556257A GB556257A GB1031042A GB1031042A GB556257A GB 556257 A GB556257 A GB 556257A GB 1031042 A GB1031042 A GB 1031042A GB 1031042 A GB1031042 A GB 1031042A GB 556257 A GB556257 A GB 556257A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- hydraulic apparatus
- hydraulic
- 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/02—Bearing surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1031042A GB556257A (en) | 1942-07-23 | 1942-07-23 | Improvements in or relating to hydraulic apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1031042A GB556257A (en) | 1942-07-23 | 1942-07-23 | Improvements in or relating to hydraulic apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB556257A true GB556257A (en) | 1943-09-27 |
Family
ID=9965511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1031042A Expired GB556257A (en) | 1942-07-23 | 1942-07-23 | Improvements in or relating to hydraulic apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB556257A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3314684A (en) * | 1964-08-31 | 1967-04-18 | Ajem Lab Inc | Sealing surfaces and methods of preparing same |
US3440703A (en) * | 1964-08-31 | 1969-04-29 | Ajem Lab Inc | Method of preparing metal sealing surfaces |
-
1942
- 1942-07-23 GB GB1031042A patent/GB556257A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3314684A (en) * | 1964-08-31 | 1967-04-18 | Ajem Lab Inc | Sealing surfaces and methods of preparing same |
US3440703A (en) * | 1964-08-31 | 1969-04-29 | Ajem Lab Inc | Method of preparing metal sealing surfaces |
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