GB842452A - Improvements in piston pumps, more particularly for hydraulic pit props - Google Patents

Improvements in piston pumps, more particularly for hydraulic pit props

Info

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
Application number
GB33523/56A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinstahl Wanheim GmbH
Original Assignee
Rheinstahl Wanheim GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rheinstahl Wanheim GmbH filed Critical Rheinstahl Wanheim GmbH
Publication of GB842452A publication Critical patent/GB842452A/en
Expired legal-status Critical Current

Links

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)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
GB33523/56A 1956-03-07 1956-11-02 Improvements in piston pumps, more particularly for hydraulic pit props Expired GB842452A (en)

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 (pm)
BE (1) BE550997A (pm)
DE (1) DE1007715B (pm)
FR (1) FR1159274A (pm)
GB (1) GB842452A (pm)
NL (3) NL211784A (pm)

Cited By (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
NL191038A (pm) * 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

Cited By (4)

* Cited by examiner, † Cited by third party
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
NL211784A (pm)
NL212619A (pm)
US2989001A (en) 1961-06-20
FR1159274A (fr) 1958-06-25
DE1007715B (de) 1957-05-09
BE550997A (pm)
NL121983C (pm)

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