GB367520A - Improvements in and relating to mine structures - Google Patents

Improvements in and relating to mine structures

Info

Publication number
GB367520A
GB367520A GB1710/31A GB171031A GB367520A GB 367520 A GB367520 A GB 367520A GB 1710/31 A GB1710/31 A GB 1710/31A GB 171031 A GB171031 A GB 171031A GB 367520 A GB367520 A GB 367520A
Authority
GB
United Kingdom
Prior art keywords
thickness
section
narrowest point
relating
mine
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
GB1710/31A
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
Publication of GB367520A publication Critical patent/GB367520A/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
    • E21D11/14—Lining predominantly with metal
    • E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/20—Special cross- sections, e.g. corrugated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Image Generation (AREA)
  • Outer Garments And Coats (AREA)

Abstract

367,520. Constructional ironwork; mine supports. ESSER, W., 52, Schweizerstrasse, Duisburg-on-Rhine, Germany. Jan. 19, 1931, No. 1710. Convention date, Dec.- 19, 1930. [Class 20 (ii).] Section rails for mine supports are formed with webs which increase gradually in thickness from a narrowest point at least towards one flange. The curves of increase of thickness may be a straight line, ellipse, hyperbola, sine, or circular, and part of the section may be of ordinary shape. The Specification as open to inspection under Sect. 91 (3) (a) comprises also half-section bars formed with increasing thickness of web from a narrowest point. This subject-matter does not appear in the Specification as accepted.
GB1710/31A 1930-12-19 1931-01-19 Improvements in and relating to mine structures Expired GB367520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE367520X 1930-12-19

Publications (1)

Publication Number Publication Date
GB367520A true GB367520A (en) 1932-02-25

Family

ID=6317922

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1710/31A Expired GB367520A (en) 1930-12-19 1931-01-19 Improvements in and relating to mine structures

Country Status (1)

Country Link
GB (1) GB367520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112638743A (en) * 2018-07-16 2021-04-09 阿母斯替德铁路公司 Railway truck assembly with i-beam member

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112638743A (en) * 2018-07-16 2021-04-09 阿母斯替德铁路公司 Railway truck assembly with i-beam member
CN112638743B (en) * 2018-07-16 2024-03-29 阿母斯替德铁路公司 Railway truck assembly with I-beam member

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