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GB475560A - Improvements in mine props or the like - Google Patents

Improvements in mine props or the like

Info

Publication number
GB475560A
GB475560A GB14203/36A GB1420336A GB475560A GB 475560 A GB475560 A GB 475560A GB 14203/36 A GB14203/36 A GB 14203/36A GB 1420336 A GB1420336 A GB 1420336A GB 475560 A GB475560 A GB 475560A
Authority
GB
United Kingdom
Prior art keywords
wedge
locking member
pocket
prop
spacer
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
GB14203/36A
Inventor
Karl Gerlach
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.)
HANS GERLACH DIPL ING
Original Assignee
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 HANS GERLACH DIPL ING filed Critical HANS GERLACH DIPL ING
Publication of GB475560A publication Critical patent/GB475560A/en
Expired legal-status Critical Current

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)
  • Prostheses (AREA)
  • Clamps And Clips (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Abstract

475,560. Mine-props. GERLACH, K. May 19, 1936, No. 14203. [Class 20 (ii)] A mine-prop comprises an inner tapered member sliding in an outer member with a pocket, a wedge or wedges between the members, and a locking member, the wedge and locking member being arranged in the pocket so that the locking member is not subjected to the whole of the lateral thrust set up by the axial load on the prop and for collapse is moved in a different direction from that in which the movable parts yield under load. As shown on the right-hand side of Fig. 1, the upper member 1 is provided with ribs 14 against which bear wedges 9 which move with the member 1 ; coacting with these wedges are loose wedges 4, 10, the wedge 4 having two inclined surfaces, one coacting with a wedge spacer 6 and the other with a wedge locking member 5 all disposed in a pocket 3 on the lower prop member 2; by this arrangement part of the thrust of the inner prop member under load is transmitted through the spacer-block 6 to the pocket and part to the locking member 5 which is adapted to be raised when the prop is to be released. Alternatively, a separate locking member 5<1> adapted to be withdrawn transversely for collapse, is used to support the wedge spacer-block 6. On the left of Fig. 1 are shown two alternative arrangements wherein the wedge 10 is supported either by a locking member 5<11> arranged between the upper end of the lower prop member and a lip on the wedge, or by a locking member 5<111> disposed between a projection 16 on the wedge and a projection on the side of the pocket 3. In other forms, the wedge is retained in position by a transverse locking key disposed between opposed lips on the wedge and pocket, or between a lip on the wedge and an auxiliary wedge spacer-block, and the key may be of wedge formation to coact with opposed wedge surfaces on either the locking wedges or on spacer-blocks. For resilience, as shown in Fig. 9, the transverse locking member 5 is spring-pressed against double inclined surfaces 6a on spacer-blocks 6, which have wedge contact with the mainwedge 4. The main-wedge 4 may be formed in two resiliently connected portions according to a further modification. The locking member may also be formed in two resiliently connected parts for use with any of the forms of prop described in the Specification.
GB14203/36A 1935-05-21 1936-05-19 Improvements in mine props or the like Expired GB475560A (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
GB475560A true GB475560A (en) 1937-11-19

Family

ID=7116777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14203/36A Expired GB475560A (en) 1935-05-21 1936-05-19 Improvements in mine props or the like

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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767190C (en) * 1938-12-13 1952-03-31 Westdeutscher Industriebedarf Friction insert for pit support clamp locks
DE971757C (en) * 1944-09-08 1959-03-26 Hubert Thines Multi-part pit stamp
DE971813C (en) * 1951-12-08 1959-04-02 Gutehoffnungshuette Sterkrade Multi-part lock for pit stamp

Families Citing this family (13)

* 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
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
DE970221C (en) * 1948-10-02 1958-08-28 Alexander Schmidt Dr Ing Pit stamp
US2670170A (en) * 1950-03-22 1954-02-23 Haarmann Arnold Pit prop
DE977408C (en) * 1951-02-24 1966-05-26 Karl Gerlach Pit stamp
FR3150000A1 (en) 2023-06-14 2024-12-20 Laurent MAZOUNIE Time display with rotating indexes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE487940C (en) * 1929-12-17 Joseph Maercks Dipl Ing Resilient iron pit stamp
DE484017C (en) * 1929-10-08 Julius Wuestenhoefer Adjusting and ventilation device for two-part 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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767190C (en) * 1938-12-13 1952-03-31 Westdeutscher Industriebedarf Friction insert for pit support clamp locks
DE971757C (en) * 1944-09-08 1959-03-26 Hubert Thines Multi-part pit stamp
DE971813C (en) * 1951-12-08 1959-04-02 Gutehoffnungshuette Sterkrade Multi-part lock for pit stamp

Also Published As

Publication number Publication date
BE415622A (en) 1936-06-30
NL44014C (en) 1938-04-15
FR806590A (en) 1936-12-19
DE938002C (en) 1956-01-26

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