NL110999C - - Google Patents

Info

Publication number
NL110999C
NL110999C NL110999DA NL110999C NL 110999 C NL110999 C NL 110999C NL 110999D A NL110999D A NL 110999DA NL 110999 C NL110999 C NL 110999C
Authority
NL
Netherlands
Application number
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.)
Publication of NL110999C publication Critical patent/NL110999C/xx

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
    • 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
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manipulator (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Braking Arrangements (AREA)
  • Fluid-Damping Devices (AREA)
NL110999D 1958-11-24 NL110999C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE453812 1958-11-24

Publications (1)

Publication Number Publication Date
NL110999C true NL110999C (fr)

Family

ID=47144160

Family Applications (3)

Application Number Title Priority Date Filing Date
NL233516D NL233516A (fr) 1958-11-24
NL110999D NL110999C (fr) 1958-11-24
NL267759D NL267759A (fr) 1958-11-24

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL233516D NL233516A (fr) 1958-11-24

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL267759D NL267759A (fr) 1958-11-24

Country Status (4)

Country Link
DE (1) DE1182183B (fr)
FR (1) FR1247509A (fr)
GB (1) GB875249A (fr)
NL (3) NL267759A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110307021B (zh) * 2019-07-29 2024-01-12 石家庄博安煤矿机械制造有限公司 一种煤矿用液压支撑装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE486663A (fr) * 1948-01-12
DE923244C (de) * 1951-12-11 1955-02-07 Eugen Bellmann Hydraulischer Stempel, insbesondere Grubenstempel
NL191038A (fr) * 1953-09-24 1900-01-01
DE1009139B (de) * 1955-12-30 1957-05-29 Hermann Schwarz Kommanditgesel Zweiteiliger metallischer Grubenstempel mit einer durch Reibungsschluss unter elastischer Verformung erfolgenden Verspannung der Stempelteile und Verfahren zum Setzen
BE557124A (fr) * 1956-05-01
BE560360A (fr) * 1956-08-29

Also Published As

Publication number Publication date
DE1182183B (de) 1964-11-26
GB875249A (en) 1961-08-16
NL233516A (fr) 1965-06-25
FR1247509A (fr) 1960-12-02
NL267759A (fr) 1965-06-25

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