GB842452A - Improvements in piston pumps, more particularly for hydraulic pit props - Google Patents
Improvements in piston pumps, more particularly for hydraulic pit propsInfo
- Publication number
- GB842452A GB842452A GB33523/56A GB3352356A GB842452A GB 842452 A GB842452 A GB 842452A GB 33523/56 A GB33523/56 A GB 33523/56A GB 3352356 A GB3352356 A GB 3352356A GB 842452 A GB842452 A GB 842452A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- cylinder
- chamber
- pressure
- piston rod
- 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
- 239000007788 liquid Substances 0.000 abstract 8
- 238000007789 sealing Methods 0.000 abstract 4
- 238000012856 packing Methods 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/12—Valves; Arrangement of valves arranged in or on pistons
- F04B53/125—Reciprocating valves
- F04B53/126—Ball valves
-
- 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
-
- 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
-
- 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
- E21D15/45—Hydraulic, pneumatic, or hydraulic-pneumatic props having closed fluid system, e.g. with built-in pumps or accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/24—Bypassing
- F04B49/243—Bypassing by keeping open the inlet valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B5/00—Machines or pumps with differential-surface pistons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE12050A DE1007715B (de) | 1956-03-07 | 1956-03-07 | Kolbenpumpe fuer Presszylinder, insbesondere fuer hydraulische Grubenstempel |
Publications (1)
Publication Number | Publication Date |
---|---|
GB842452A true GB842452A (en) | 1960-07-27 |
Family
ID=7068230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33523/56A Expired GB842452A (en) | 1956-03-07 | 1956-11-02 | Improvements in piston pumps, more particularly for hydraulic pit props |
Country Status (6)
Country | Link |
---|---|
US (1) | US2989001A (de) |
BE (1) | BE550997A (de) |
DE (1) | DE1007715B (de) |
FR (1) | FR1159274A (de) |
GB (1) | GB842452A (de) |
NL (3) | NL121983C (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2357806A (en) * | 1999-12-02 | 2001-07-04 | Trevor John Honour | Load bearing props |
CN103291929A (zh) * | 2013-06-03 | 2013-09-11 | 常熟市藕渠针织机械厂 | 用于油压工具的油室密封装置 |
US20150210518A1 (en) * | 2014-01-27 | 2015-07-30 | Chung-Yi Yang | Anti-overpressure double-acting threaded jack |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3064581A (en) * | 1959-07-10 | 1962-11-20 | Power Jacks Ltd | Reciprocating hydraulic pumps |
US3143075A (en) * | 1961-06-12 | 1964-08-04 | Halliburton Co | Pump |
US3155041A (en) * | 1963-05-16 | 1964-11-03 | Mansfield Green Inc | Pressure apparatus |
US3694111A (en) * | 1970-03-04 | 1972-09-26 | Anton Braun | Free piston engine bounce compressor |
AT503697B1 (de) * | 2006-06-02 | 2008-06-15 | Bosch Gmbh Robert | Pumpenelement für eine hochdruckpumpe |
CN102826480A (zh) * | 2012-08-20 | 2012-12-19 | 常熟通润汽车零部件股份有限公司 | 结构改良的液压千斤顶的回油装置 |
CN102910554B (zh) * | 2012-10-25 | 2015-04-22 | 杭州天恒机械有限公司 | 一种具有双重起升负载的千斤顶液压油路 |
CN113606116A (zh) * | 2021-09-14 | 2021-11-05 | 扬州市吉奥米金属制品有限公司 | 一种可对单次做功行程进行调节的空压机用气缸活塞组件 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US833457A (en) * | 1903-08-11 | 1906-10-16 | James W Nelson | Pump for hydraulic jacks and other purposes. |
US895666A (en) * | 1907-07-08 | 1908-08-11 | James W Nelson | Hydraulic-pressure pump. |
US909647A (en) * | 1908-01-31 | 1909-01-12 | James W Nelson | Hydraulic pump. |
US904557A (en) * | 1908-02-04 | 1908-11-24 | James W Nelson | Hydraulic pump. |
US1080062A (en) * | 1912-02-17 | 1913-12-02 | Bethlehem Steel Corp | Pump mechanism for hydraulic jacks and like apparatus. |
US1521461A (en) * | 1921-06-02 | 1924-12-30 | Bethlehem Steel Corp | Variable-pressure power pump |
US2091876A (en) * | 1936-05-14 | 1937-08-31 | Samuel W Oldham | Fluid pressure generating means |
US2447650A (en) * | 1944-04-17 | 1948-08-24 | Walker Mfg Co | Pump mechanism |
US2435326A (en) * | 1945-03-02 | 1948-02-03 | Duff Norton Mfg Company | Fluid pump |
US2659307A (en) * | 1947-11-04 | 1953-11-17 | Yale & Towne Mfg Co | Compound pressure pump |
NL92057C (de) * | 1953-09-24 | 1900-01-01 | ||
US2820415A (en) * | 1956-03-12 | 1958-01-21 | Ray W Born | Low pressure, high volume-high pressure, low volume pump |
-
0
- NL NL212619D patent/NL212619A/xx unknown
- BE BE550997D patent/BE550997A/xx unknown
- NL NL211784D patent/NL211784A/xx unknown
- NL NL121983D patent/NL121983C/xx active
-
1956
- 1956-03-07 DE DEE12050A patent/DE1007715B/de active Pending
- 1956-09-25 FR FR1159274D patent/FR1159274A/fr not_active Expired
- 1956-11-02 GB GB33523/56A patent/GB842452A/en not_active Expired
-
1957
- 1957-03-01 US US643421A patent/US2989001A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2357806A (en) * | 1999-12-02 | 2001-07-04 | Trevor John Honour | Load bearing props |
CN103291929A (zh) * | 2013-06-03 | 2013-09-11 | 常熟市藕渠针织机械厂 | 用于油压工具的油室密封装置 |
CN103291929B (zh) * | 2013-06-03 | 2015-08-26 | 太仓兴锋脚轮有限公司 | 用于油压工具的油室密封装置 |
US20150210518A1 (en) * | 2014-01-27 | 2015-07-30 | Chung-Yi Yang | Anti-overpressure double-acting threaded jack |
Also Published As
Publication number | Publication date |
---|---|
NL121983C (de) | |
FR1159274A (fr) | 1958-06-25 |
BE550997A (de) | |
DE1007715B (de) | 1957-05-09 |
NL212619A (de) | |
NL211784A (de) | |
US2989001A (en) | 1961-06-20 |
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