GB839678A - Improvements in or relating to struts for mine arches - Google Patents

Improvements in or relating to struts for mine arches

Info

Publication number
GB839678A
GB839678A GB1762358A GB1762358A GB839678A GB 839678 A GB839678 A GB 839678A GB 1762358 A GB1762358 A GB 1762358A GB 1762358 A GB1762358 A GB 1762358A GB 839678 A GB839678 A GB 839678A
Authority
GB
United Kingdom
Prior art keywords
strut
arch
mine
web
clearance hole
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
GB1762358A
Inventor
Wilfred Kent
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.)
LONGLEYS BARNSLEY Ltd
Original Assignee
LONGLEYS BARNSLEY Ltd
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 LONGLEYS BARNSLEY Ltd filed Critical LONGLEYS BARNSLEY Ltd
Priority to GB1762358A priority Critical patent/GB839678A/en
Publication of GB839678A publication Critical patent/GB839678A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D11/28—Longitudinal struts, i.e. longitudinal connections between adjoining arches

Abstract

839,678. Struts for mine arches. LONGLEYS (BARNSLEY) Ltd. Nov. 18, 1958 [June 3, 1958], No. 17623/58. Class 20(2) [Also in Group XXII] A strut 1 for mine arches comprises at one end a bent rod 7 adapted to be passed through a clearance hole 18 in the mine arch web 19 and engaged by a clearance hole 4 in the flat end of the adjacent strut 1, the hole 4 being so spaced from the end of this strut that this end bears on one side of the web 19 while shoulders 8 of the first strut bear on the other side. The end 14 of the rod 7 may be bent over as indicated in broken line, to secure it and may be notched at 15 to facilitate the bending. A short length of tube with a bent rod 7 is used in the first arch of a series for the connection of the first complete strut. The bent rod 7 of the strut for the last arch of a series, after being passed through the arch web is engaged with a clearance hole in a transverse angle iron or is secured by a cam 26, Fig. 8, forming part of a stirrup 28 adapted to be forced down.
GB1762358A 1958-06-03 1958-06-03 Improvements in or relating to struts for mine arches Expired GB839678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1762358A GB839678A (en) 1958-06-03 1958-06-03 Improvements in or relating to struts for mine arches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1762358A GB839678A (en) 1958-06-03 1958-06-03 Improvements in or relating to struts for mine arches

Publications (1)

Publication Number Publication Date
GB839678A true GB839678A (en) 1960-06-29

Family

ID=10098374

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1762358A Expired GB839678A (en) 1958-06-03 1958-06-03 Improvements in or relating to struts for mine arches

Country Status (1)

Country Link
GB (1) GB839678A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154628A (en) * 1984-02-20 1985-09-11 Caledonian Mining Co Ltd Mine arch linking struts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154628A (en) * 1984-02-20 1985-09-11 Caledonian Mining Co Ltd Mine arch linking struts

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