BE559917A - - Google Patents
Info
- Publication number
- BE559917A BE559917A BE559917DA BE559917A BE 559917 A BE559917 A BE 559917A BE 559917D A BE559917D A BE 559917DA BE 559917 A BE559917 A BE 559917A
- Authority
- BE
- Belgium
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
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- 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
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- 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
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid-Pressure Circuits (AREA)
- Safety Valves (AREA)
- Control Of Presses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH28351A DE1128383B (en) | 1956-10-16 | 1956-10-16 | Hydraulic pit ram |
Publications (1)
Publication Number | Publication Date |
---|---|
BE559917A true BE559917A (en) |
Family
ID=7150844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE559917D BE559917A (en) | 1956-10-16 |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE559917A (en) |
DE (1) | DE1128383B (en) |
FR (1) | FR1177675A (en) |
GB (1) | GB836471A (en) |
NL (1) | NL218917A (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE558508A (en) * | 1956-06-21 | |||
BE560243A (en) * | 1956-08-25 |
-
0
- BE BE559917D patent/BE559917A/xx unknown
- NL NL218917D patent/NL218917A/xx unknown
-
1956
- 1956-10-16 DE DEH28351A patent/DE1128383B/en active Pending
-
1957
- 1957-07-02 FR FR1177675D patent/FR1177675A/en not_active Expired
- 1957-09-02 GB GB2764257A patent/GB836471A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL218917A (en) | |
GB836471A (en) | 1960-06-01 |
FR1177675A (en) | 1959-04-28 |
DE1128383B (en) | 1962-04-26 |