GB115539A - Improvements in or relating to Concrete Props and Beams for Supporting the Roofs of Coal Mines and other Mines and for like purposes. - Google Patents

Improvements in or relating to Concrete Props and Beams for Supporting the Roofs of Coal Mines and other Mines and for like purposes.

Info

Publication number
GB115539A
GB115539A GB1000917A GB1000917A GB115539A GB 115539 A GB115539 A GB 115539A GB 1000917 A GB1000917 A GB 1000917A GB 1000917 A GB1000917 A GB 1000917A GB 115539 A GB115539 A GB 115539A
Authority
GB
United Kingdom
Prior art keywords
mines
roofs
beams
relating
purposes
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
GB1000917A
Inventor
Elias Frederick Lewis
Richard John Lewis
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1000917A priority Critical patent/GB115539A/en
Publication of GB115539A publication Critical patent/GB115539A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/08—Lining with building materials with preformed concrete slabs

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

115,539. Lewis, E. F., and Lewis, R. J. July 11, 1917. Mine props.-The prop or support comprises two side posts A and a cross-beam D, each made of reinforced concrete. Each post is recessed into the beam in some such manner as is shown at D', D<2>, the joint being also curved from side to side, as shown in Fig. 3, or otherwise formed to prevent lateral displacement. The foot of each post is chamfered or tapered as shown in Fig. 7 in order to obtain a firm hold upon the ground.
GB1000917A 1917-07-11 1917-07-11 Improvements in or relating to Concrete Props and Beams for Supporting the Roofs of Coal Mines and other Mines and for like purposes. Expired GB115539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1000917A GB115539A (en) 1917-07-11 1917-07-11 Improvements in or relating to Concrete Props and Beams for Supporting the Roofs of Coal Mines and other Mines and for like purposes.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1000917A GB115539A (en) 1917-07-11 1917-07-11 Improvements in or relating to Concrete Props and Beams for Supporting the Roofs of Coal Mines and other Mines and for like purposes.

Publications (1)

Publication Number Publication Date
GB115539A true GB115539A (en) 1918-05-16

Family

ID=32482964

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1000917A Expired GB115539A (en) 1917-07-11 1917-07-11 Improvements in or relating to Concrete Props and Beams for Supporting the Roofs of Coal Mines and other Mines and for like purposes.

Country Status (1)

Country Link
GB (1) GB115539A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1608527B1 (en) * 1964-10-13 1970-05-21 Aug Kloenne Fa Underground expansion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1608527B1 (en) * 1964-10-13 1970-05-21 Aug Kloenne Fa Underground expansion

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