BE333312A - - Google Patents

Info

Publication number
BE333312A
BE333312A BE333312A BE333312A BE333312A BE 333312 A BE333312 A BE 333312A BE 333312 A BE333312 A BE 333312A BE 333312 A BE333312 A BE 333312A BE 333312 A BE333312 A BE 333312A
Authority
BE
Belgium
Prior art keywords
foot
props
head
movable head
prop
Prior art date
Application number
BE333312A
Other languages
English (en)
French (fr)
Original Assignee
Charles Leonard Pelabon
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 Charles Leonard Pelabon filed Critical Charles Leonard Pelabon
Priority to BE333312A priority Critical patent/BE333312A/fr
Priority to DEP52969D priority patent/DE507981C/de
Publication of BE333312A publication Critical patent/BE333312A/fr
Priority to GB10222/27A priority patent/GB269571A/en
Priority to FR632897D priority patent/FR632897A/fr
Priority to BE335281A priority patent/BE335281R/fr

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Clamps And Clips (AREA)
  • Braking Arrangements (AREA)
  • Emergency Lowering Means (AREA)
BE333312A 1926-04-16 1926-04-16 BE333312A (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE333312A BE333312A (sv) 1926-04-16 1926-04-16
DEP52969D DE507981C (de) 1926-04-16 1926-05-29 Eiserner Grubenstempel
GB10222/27A GB269571A (en) 1926-04-16 1927-04-13 Improvements in or relating to gallery or other props
FR632897D FR632897A (sv) 1926-04-16 1927-04-15
BE335281A BE335281R (sv) 1926-04-16 1929-07-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE333312A BE333312A (sv) 1926-04-16 1926-04-16

Publications (1)

Publication Number Publication Date
BE333312A true BE333312A (sv) 1926-05-31

Family

ID=12101

Family Applications (2)

Application Number Title Priority Date Filing Date
BE333312A BE333312A (sv) 1926-04-16 1926-04-16
BE335281A BE335281R (sv) 1926-04-16 1929-07-20

Family Applications After (1)

Application Number Title Priority Date Filing Date
BE335281A BE335281R (sv) 1926-04-16 1929-07-20

Country Status (4)

Country Link
BE (2) BE333312A (sv)
DE (1) DE507981C (sv)
FR (1) FR632897A (sv)
GB (1) GB269571A (sv)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2019884A2 (en) * 2006-05-12 2009-02-04 Wilian Holding Company Spring assembly for reshore posts

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890854A (en) * 1956-01-09 1959-06-16 Gutehoffnungshuette Sterkrade Torsion pit prop

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2019884A2 (en) * 2006-05-12 2009-02-04 Wilian Holding Company Spring assembly for reshore posts
EP2019884A4 (en) * 2006-05-12 2014-03-05 Wilian Holding Co SPRING ASSEMBLY FOR SUPPORT POSTS

Also Published As

Publication number Publication date
DE507981C (de) 1930-09-22
GB269571A (en) 1927-08-04
FR632897A (sv) 1928-01-16
BE335281R (sv) 1926-08-31

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