GB693978A - Improvements in mine roof supports - Google Patents

Improvements in mine roof supports

Info

Publication number
GB693978A
GB693978A GB16412/50A GB1641250A GB693978A GB 693978 A GB693978 A GB 693978A GB 16412/50 A GB16412/50 A GB 16412/50A GB 1641250 A GB1641250 A GB 1641250A GB 693978 A GB693978 A GB 693978A
Authority
GB
United Kingdom
Prior art keywords
bar
loop
hook
wedge
bars
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
GB16412/50A
Other languages
English (en)
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.)
MARGOT VON LINSINGEN
Original Assignee
MARGOT VON LINSINGEN
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 MARGOT VON LINSINGEN filed Critical MARGOT VON LINSINGEN
Publication of GB693978A publication Critical patent/GB693978A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/70—Devices for cutting weft threads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Textile Engineering (AREA)
  • Emergency Lowering Means (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
GB16412/50A 1951-04-23 1950-06-30 Improvements in mine roof supports Expired GB693978A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE716447X 1951-04-23

Publications (1)

Publication Number Publication Date
GB693978A true GB693978A (en) 1953-07-08

Family

ID=6626418

Family Applications (2)

Application Number Title Priority Date Filing Date
GB16412/50A Expired GB693978A (en) 1951-04-23 1950-06-30 Improvements in mine roof supports
GB10110/52A Expired GB716447A (en) 1951-04-23 1952-04-22 Improvements in or relating to mine roof supports

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB10110/52A Expired GB716447A (en) 1951-04-23 1952-04-22 Improvements in or relating to mine roof supports

Country Status (5)

Country Link
BE (2) BE496549A (enrdf_load_stackoverflow)
DE (1) DE974668C (enrdf_load_stackoverflow)
FR (2) FR62578E (enrdf_load_stackoverflow)
GB (2) GB693978A (enrdf_load_stackoverflow)
NL (1) NL79536C (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749712A (en) * 1949-11-25 1956-06-12 Gerlach Karl Mine supporting structure for working mines
DE1022992B (de) * 1951-05-15 1958-01-23 Gutehoffnungshuette Sterkrade Grubenausbaukappe mit Gelenkverbindung
DE1057042B (de) * 1952-05-07 1959-05-14 Wilhelm Meier Schaleisengelenkverbindung
LU32099A1 (enrdf_load_stackoverflow) * 1952-05-31
DE1035602B (de) * 1952-08-13 1958-08-07 Aloys Vanwersch Schaleisen
DE1039973B (de) * 1952-08-13 1958-10-02 Aloys Vanwersch Keil fuer die gelenkige Verbindung von Kappen
DE1207319B (de) * 1964-06-06 1965-12-23 Aloys Vanwersch Kappenverbindung fuer den Grubenausbau in Untertagebetrieben

Also Published As

Publication number Publication date
FR993340A (fr) 1951-11-12
DE974668C (de) 1961-03-23
FR62578E (fr) 1955-06-15
GB716447A (en) 1954-10-06
BE496549A (enrdf_load_stackoverflow) 1950-12-23
BE510061A (enrdf_load_stackoverflow) 1952-09-19
NL79536C (enrdf_load_stackoverflow) 1955-11-15

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SU368170A1 (ru) ГРУЗОВОЙ КРЮК дл ВОЗДУШНО-ТРЕЛЕВОЧНОЙ УСТАНОВКИ1Изобретение относитс к грузовым крюкам и предназначено дл использовани в воздушно-трелевочных установках на трелевке леса._jИзвестны грузовые крюки дл воздушно- трелевочных установок, включаюш,ие остов, пустотелый болт с конусной головкой, тарелку и шарнирно соединенный с остовом рог.Особенностью описываемого грузового крюка вл етс то, что его остов в верхней части снабжен двум шеками с вертикальными и фигурными пазами, в которых установлены взаимно подпружиненные пружинами опорна ось и осевой нлаваюш,ий фиксатор, а пустотелый болт выполнен подвижным дл перемещени пружин относительно оси при выводе ее из зацеплени с рогом крюка.При таком выполнении грузового крюка обеспечиваетс автоматическа отцепка грузового стропа и повышаетс надежность его в работе.На фиг. 1 показаны также относительные положени опорной оси, осевого фиксатора и пустотелого болта: I — в момент, предшествующий сцеплению грузового крюка с кареткой; II — в момент их сцеплени ; III — в момент отцепки стропа.Грузовой крюк состоит из остова /, шарнирно соединенного с ним рога 2, подвижного пустотелого болта 3, имеющего в верхней части конусную головку 4, а в нижней — го-5 «.овку 5.Остов 1 снабжен в верхней части двум ще- камн 6, выполненными с вертикальным пазом а и фигурным пазом б, в которых установлены взаимно подпружиненные пружина-^0 ми 7 опорна ось 8 и осевой плавающий фиксатор 9, опирающийс в положении I на головку 5 болта н фиксирующий в положении II пружины 7, вход нрн этом в углубление верхней части фигурного паза 6.1^ Болт 3 в нижней части имеет вырез в, позвол ющий опускать головку 5 в положение I. Во врем работы грузовой крюк подаетс в зону застроповки бревен. Прелюде чем кольцо грузового стропа будет надето на рог, болт
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