NL73035C - - Google Patents

Info

Publication number
NL73035C
NL73035C NL152455A NL152455A NL73035C NL 73035 C NL73035 C NL 73035C NL 152455 A NL152455 A NL 152455A NL 152455 A NL152455 A NL 152455A NL 73035 C NL73035 C NL 73035C
Authority
NL
Netherlands
Application number
NL152455A
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 filed Critical
Application granted granted Critical
Publication of NL73035C publication Critical patent/NL73035C/xx

Links

Classifications

    • 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
    • E21D15/58—Devices for setting props or chocks
    • 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
    • E21D15/002—Auxiliary devices in which the prop type is not essential
    • 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
    • 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
    • E21D15/517—Extension elements
    • 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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important
    • 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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important
    • E21D15/586—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded
    • 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
    • E21D15/60—Devices for withdrawing props or chocks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each
    • Y10T137/87965—Valve- or closure-operated by coupling motion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Check Valves (AREA)
  • Press Drives And Press Lines (AREA)
  • Earth Drilling (AREA)
NL152455A 1949-04-07 1950-03-22 NL73035C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP39236A DE830181C (de) 1949-04-07 1949-04-07 Hydraulischer Grubenstempel sowie Vorrichtung zum Setzen und Rauben desselben

Publications (1)

Publication Number Publication Date
NL73035C true NL73035C (fr) 1953-08-15

Family

ID=6603986

Family Applications (2)

Application Number Title Priority Date Filing Date
NL676715066A NL152226B (nl) 1949-04-07 Werkwijze en inrichting voor het vervaardigen van vlak glas, benevens vlak glas vervaardigd onder toepassing van deze werkwijze.
NL152455A NL73035C (fr) 1949-04-07 1950-03-22

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL676715066A NL152226B (nl) 1949-04-07 Werkwijze en inrichting voor het vervaardigen van vlak glas, benevens vlak glas vervaardigd onder toepassing van deze werkwijze.

Country Status (6)

Country Link
US (1) US2816728A (fr)
BE (1) BE495010A (fr)
DE (1) DE830181C (fr)
FR (2) FR989335A (fr)
GB (1) GB693038A (fr)
NL (2) NL73035C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961839A (en) * 1956-08-28 1960-11-29 Fausto A Aresti Hydraulic compression member

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1010032B (de) * 1955-02-14 1957-06-13 Dobson Ltd W E & F Abstuetzvorrichtung
DE1043252B (de) * 1956-04-27 1958-11-13 Guenther W Hammer Grundplatte fuer Grubenstempel
DE1061271B (de) * 1957-11-15 1959-07-16 Tecalemit Ges M B H Deutsche Fuellarmatur fuer hydraulische Grubenstempel
US3148714A (en) * 1959-09-28 1964-09-15 Dowty Mining Equipment Ltd Liquid charging devices for hydraulic pit props
CN103224205B (zh) * 2013-04-01 2015-09-23 永城煤电控股集团有限公司 手拉葫芦升降装置
CN106499421B (zh) * 2016-11-03 2019-01-08 中国矿业大学 一种机械式恒阻单体支柱回撤工艺与回收方法
CN114017051B (zh) * 2021-10-11 2023-10-20 煤炭科学研究总院有限公司 支架安装车

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1208162A (en) * 1915-03-25 1916-12-12 Henry Jungjohann Pressure-recording valve.
US1544777A (en) * 1923-12-10 1925-07-07 Harry B Robinson Air coupling for pipe and hose lines
DE574822C (de) * 1931-04-19 1933-04-20 Dorstener Drahtwerke H W Brune Nachgiebiger Grubenstempel
GB453560A (en) * 1935-05-27 1936-09-14 Wilhelm Fehlemann Yieldable prop for mines
US2247843A (en) * 1937-01-18 1941-07-01 Italiana Magneti Marelli Socie Conduit coupling
BE482083A (fr) * 1947-04-24
GB636568A (en) * 1953-07-20 1950-05-03 George Herbert Dowty Improvements in pit props and other telescopic struts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961839A (en) * 1956-08-28 1960-11-29 Fausto A Aresti Hydraulic compression member

Also Published As

Publication number Publication date
FR989335A (fr) 1951-09-11
US2816728A (en) 1957-12-17
NL152226B (nl)
BE495010A (fr) 1950-08-01
GB693038A (en) 1953-06-24
DE830181C (de) 1952-03-27
FR59692E (fr) 1954-06-29

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