JPS4923441B1 - - Google Patents

Info

Publication number
JPS4923441B1
JPS4923441B1 JP44089049A JP8904969A JPS4923441B1 JP S4923441 B1 JPS4923441 B1 JP S4923441B1 JP 44089049 A JP44089049 A JP 44089049A JP 8904969 A JP8904969 A JP 8904969A JP S4923441 B1 JPS4923441 B1 JP S4923441B1
Authority
JP
Japan
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.)
Pending
Application number
JP44089049A
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
Priority claimed from DE19691931627 external-priority patent/DE1931627C3/de
Application filed filed Critical
Publication of JPS4923441B1 publication Critical patent/JPS4923441B1/ja
Pending legal-status Critical Current

Links

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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
JP44089049A 1969-06-21 1969-11-06 Pending JPS4923441B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691931627 DE1931627C3 (de) 1969-06-21 Hydraulischer Teleskopstempel

Publications (1)

Publication Number Publication Date
JPS4923441B1 true JPS4923441B1 (ja) 1974-06-15

Family

ID=5737686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP44089049A Pending JPS4923441B1 (ja) 1969-06-21 1969-11-06

Country Status (4)

Country Link
US (1) US3656411A (ja)
JP (1) JPS4923441B1 (ja)
FR (1) FR2030920A5 (ja)
GB (1) GB1280899A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5293669U (ja) * 1976-01-12 1977-07-13
JPS56160449U (ja) * 1980-04-30 1981-11-30
JPS6143865U (ja) * 1984-08-23 1986-03-22 東一郎 柴山 植木鉢

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760704A (en) * 1971-12-30 1973-09-25 Polaroid Corp Reflex camera and viewer with a folded optical path
US3961559A (en) * 1974-11-18 1976-06-08 Hiroshi Teramachi Actuator
US4516468A (en) * 1983-01-10 1985-05-14 Hydraulic Technology Corporation Double acting telescopic cylinder construction
US5209154A (en) * 1990-11-08 1993-05-11 Allied-Signal Inc. Dual area brake actuation piston mechanism
US5953967A (en) * 1996-05-28 1999-09-21 Junkers; John Fluid-operated cylinder-piston unit, and a tool provided therewith
US5927178A (en) * 1997-11-24 1999-07-27 Diebolt International, Inc. Press driven tool actuator module
JP4262879B2 (ja) * 2000-10-10 2009-05-13 カヤバ工業株式会社 リフトシリンダ
US6557456B2 (en) * 2001-05-24 2003-05-06 The Raymond Corporation Cushioned actuator
CN101105133B (zh) * 2007-07-27 2010-05-19 中国矿业大学 双伸缩悬浮式液压立柱
CN101984220A (zh) * 2010-05-28 2011-03-09 金湖小青青机电设备有限公司 双伸缩悬浮液压立柱
CN105020197A (zh) * 2015-07-24 2015-11-04 芜湖市银鸿液压件有限公司 复合式双向液压起升坝油缸及其使用方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172117A (en) * 1938-05-02 1939-09-05 John M Beaufort Radio antenna
US2378409A (en) * 1942-03-18 1945-06-19 Joseph F Joy Hydraulic elevating mechanism
US2517153A (en) * 1946-08-16 1950-08-01 Gar Wood Ind Inc Telescopic power down hoist
US2813515A (en) * 1955-04-28 1957-11-19 Joy Mfg Co Telescopic uniform pressure providing apparatus
GB977800A (en) * 1962-08-21 1964-12-16 Electro Hydraulics Ltd Improvements in or relating to mine roof supports
BE655844A (ja) * 1963-11-29 1965-03-16

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5293669U (ja) * 1976-01-12 1977-07-13
JPS56160449U (ja) * 1980-04-30 1981-11-30
JPS6143865U (ja) * 1984-08-23 1986-03-22 東一郎 柴山 植木鉢

Also Published As

Publication number Publication date
DE1931627B2 (de) 1977-06-30
FR2030920A5 (ja) 1970-11-13
GB1280899A (en) 1972-07-05
DE1931627A1 (de) 1971-01-07
US3656411A (en) 1972-04-18

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