GB905479A - Improvements in or relating to collapsable roof and like supports - Google Patents

Improvements in or relating to collapsable roof and like supports

Info

Publication number
GB905479A
GB905479A GB2386561A GB2386561A GB905479A GB 905479 A GB905479 A GB 905479A GB 2386561 A GB2386561 A GB 2386561A GB 2386561 A GB2386561 A GB 2386561A GB 905479 A GB905479 A GB 905479A
Authority
GB
United Kingdom
Prior art keywords
collapsable
roof
relating
supports
july
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
GB2386561A
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.)
EBERHARD VON CAMPENHAUSEN
WILLY EGGEMANN
Original Assignee
EBERHARD VON CAMPENHAUSEN
WILLY EGGEMANN
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 EBERHARD VON CAMPENHAUSEN, WILLY EGGEMANN filed Critical EBERHARD VON CAMPENHAUSEN
Publication of GB905479A publication Critical patent/GB905479A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/14—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using wedges
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D15/502—Prop bodies characterised by their shape, e.g. of specified cross-section

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Prostheses (AREA)
  • Clamps And Clips (AREA)

Abstract

905,479. Telescopic pit props. EGGEMANN, W., and CAMPENHAUSEN, E. VON, [trading as SCHWARZ KOMM.-GES., HERMAN]. July 3, 1961 [July 6, 1960], No. 23865/61. Class 20 (2). A telescopic pit prop comprises a lower prop part provided with a housing 3 shaped to receive an upper prop part 6, 7, 8, 9 of trapezoidal cross-section;, frictional locking being effected by a wedge 16 acting on a pressure block 10.
GB2386561A 1960-07-06 1961-07-03 Improvements in or relating to collapsable roof and like supports Expired GB905479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH28123A DE1136963B (en) 1960-07-06 1960-07-06 Two-part support element

Publications (1)

Publication Number Publication Date
GB905479A true GB905479A (en) 1962-09-12

Family

ID=7431021

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2386561A Expired GB905479A (en) 1960-07-06 1961-07-03 Improvements in or relating to collapsable roof and like supports

Country Status (3)

Country Link
BE (1) BE605336A (en)
DE (1) DE1136963B (en)
GB (1) GB905479A (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741146C (en) * 1940-09-14 1943-11-05 Arnold Koepe Iron pit stamp
DE749552C (en) * 1942-01-27 1944-11-24 Pit stamp
DE740973C (en) * 1942-04-01 1943-11-01 Arnold Koepe Iron pit stamp
DE830336C (en) * 1948-12-14 1952-02-04 Georg Bachmann Two-part iron pit stamp with drag wedge
DE851490C (en) * 1950-09-13 1952-10-06 Georg Bachmann Resilient pit stamp
DE1067751B (en) * 1955-11-11 1959-10-29 Georg Bachmann Pit stamp
DE958552C (en) * 1956-01-18 1957-02-21 Karl Gerlach Multi-part pit punch made of steel or metal with a longitudinally divided inner punch

Also Published As

Publication number Publication date
BE605336A (en) 1961-10-16
DE1136963B (en) 1962-09-27

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