NL44014C - - Google Patents

Info

Publication number
NL44014C
NL44014C NL77836A NL77836A NL44014C NL 44014 C NL44014 C NL 44014C NL 77836 A NL77836 A NL 77836A NL 77836 A NL77836 A NL 77836A NL 44014 C NL44014 C NL 44014C
Authority
NL
Netherlands
Application number
NL77836A
Other languages
Dutch (nl)
Inventor
Karl Gerlach
Original Assignee
Karl Gerlach
Hans Gerlach Dipl Ing
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 Karl Gerlach, Hans Gerlach Dipl Ing filed Critical Karl Gerlach
Application granted granted Critical
Publication of NL44014C publication Critical patent/NL44014C/nl

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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations
    • 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
    • E21D15/005—Props; Chocks, e.g. made of flexible containers filled with backfilling material characterised by the material
    • 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
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/42—Telescopic props with parts held relatively to each other by friction or gripping with special parts to influence the friction
    • 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
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/43—Details of wedges

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)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Clamps And Clips (AREA)
  • Prostheses (AREA)
NL77836A 1935-05-21 1936-05-16 NL44014C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG2592D DE938002C (en) 1935-05-21 1935-05-21 Steel pit stamp

Publications (1)

Publication Number Publication Date
NL44014C true NL44014C (en) 1938-04-15

Family

ID=7116777

Family Applications (1)

Application Number Title Priority Date Filing Date
NL77836A NL44014C (en) 1935-05-21 1936-05-16

Country Status (5)

Country Link
BE (1) BE415622A (en)
DE (1) DE938002C (en)
FR (1) FR806590A (en)
GB (1) GB475560A (en)
NL (1) NL44014C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670170A (en) * 1950-03-22 1954-02-23 Haarmann Arnold Pit prop

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767659C (en) * 1935-07-30 1953-05-04 Gerlach Karl Iron pit stamp, the wedge-shaped inner stamp of which is under the effect of wedges, which lie against the inner stamp with separate surfaces
DE756241C (en) * 1937-06-26 1953-11-09 Karl Barall Operating wedge for pit stamp
DE745160C (en) * 1937-07-22 1944-02-28 Karl Gerlach Iron pit stamp
DE937341C (en) * 1937-08-20 1956-01-05 Karl Gerlach Pit stamp
DE767190C (en) * 1938-12-13 1952-03-31 Westdeutscher Industriebedarf Friction insert for pit support clamp locks
DE757741C (en) * 1939-08-27 1953-11-02 Walter Hartwig Pit stamp
DE764943C (en) * 1940-03-15 1953-07-27 Eisenwerk Wanheim G M B H Pit stamp
DE749491C (en) * 1940-08-14 1944-11-23 Wedge lock for two-part iron pit stamp
DE972801C (en) * 1942-03-31 1959-10-01 Karl Gerlach Stem stamp, especially for mining operations
DE942683C (en) * 1942-11-10 1956-05-03 Eisenwerk Wanheim G M B H Iron pit stamp with wedge lock
GB613923A (en) * 1944-09-08 1948-12-07 Hubert Thines Improvements in or relating to mine props
DE970221C (en) * 1948-10-02 1958-08-28 Alexander Schmidt Dr Ing Pit stamp
DE977408C (en) * 1951-02-24 1966-05-26 Karl Gerlach Pit stamp
DE971813C (en) * 1951-12-08 1959-04-02 Gutehoffnungshuette Sterkrade Multi-part lock for pit stamp

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE484017C (en) * 1929-10-08 Julius Wuestenhoefer Adjusting and ventilation device for two-part pit stamp
DE487940C (en) * 1929-12-17 Joseph Maercks Dipl Ing Resilient iron pit stamp
DE434826C (en) * 1924-09-18 1926-09-30 Hans Hahn Resilient iron pit stamp
DE673871C (en) * 1932-12-10 1939-03-30 Gutehoffnungshuette Oberhausen Resilient two-part pit stamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670170A (en) * 1950-03-22 1954-02-23 Haarmann Arnold Pit prop

Also Published As

Publication number Publication date
FR806590A (en) 1936-12-19
BE415622A (en) 1936-06-30
DE938002C (en) 1956-01-26
GB475560A (en) 1937-11-19

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