GB774574A - Improvements in or relating to drift support systems for mines - Google Patents

Improvements in or relating to drift support systems for mines

Info

Publication number
GB774574A
GB774574A GB27416/52A GB2741652A GB774574A GB 774574 A GB774574 A GB 774574A GB 27416/52 A GB27416/52 A GB 27416/52A GB 2741652 A GB2741652 A GB 2741652A GB 774574 A GB774574 A GB 774574A
Authority
GB
United Kingdom
Prior art keywords
mines
relating
support systems
drift support
clamp
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
GB27416/52A
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 GB774574A publication Critical patent/GB774574A/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
    • E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure

Abstract

774,574. Mine roof supports. HAARMANN, A. Oct. 31, 1952 [July 29, 1952], No. 27416/52. Addition to 774,575. Class 20(2) In the clamp of the parent Specification clamping together the two girders of a mine arch and having pressure members which deform at a predetermined pressure, the pressure members 16 are of tubular form and are threaded on the limbs of the clamp 12 clamping the arch girders 10, 11.
GB27416/52A 1952-07-29 1952-10-31 Improvements in or relating to drift support systems for mines Expired GB774574A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE774574X 1952-07-29

Publications (1)

Publication Number Publication Date
GB774574A true GB774574A (en) 1957-05-15

Family

ID=6686101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27416/52A Expired GB774574A (en) 1952-07-29 1952-10-31 Improvements in or relating to drift support systems for mines

Country Status (1)

Country Link
GB (1) GB774574A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306154A (en) * 1965-10-23 1967-02-28 Mcculloch Corp Compressive load limit indicators
US3426819A (en) * 1967-02-20 1969-02-11 Federal Screw Works Bolt with deformable washer
US4061073A (en) * 1977-01-28 1977-12-06 Caterpillar Tractor Co. Controllably deformable fastener assembly
US5088866A (en) * 1990-03-31 1992-02-18 Friedr. Ischebeck Gmbh Indicator-nut threaded coupling with load-indicating device adapted to be arranged on anchors, in particular grouted anchors for mining or the like
GB2264732A (en) * 1992-01-22 1993-09-08 Loadmaster Ltd A clamp for a yieldable support
CN108953340A (en) * 2017-05-25 2018-12-07 通用电气公司 Spacer and bolted joints connector are crushed for gas-turbine unit
DE102021112870A1 (en) 2021-05-18 2022-11-24 PROMESS Gesellschaft für Montage- und Prüfsysteme mbH Compression sleeve for preloading screw connections

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306154A (en) * 1965-10-23 1967-02-28 Mcculloch Corp Compressive load limit indicators
US3426819A (en) * 1967-02-20 1969-02-11 Federal Screw Works Bolt with deformable washer
US4061073A (en) * 1977-01-28 1977-12-06 Caterpillar Tractor Co. Controllably deformable fastener assembly
US5088866A (en) * 1990-03-31 1992-02-18 Friedr. Ischebeck Gmbh Indicator-nut threaded coupling with load-indicating device adapted to be arranged on anchors, in particular grouted anchors for mining or the like
GB2264732A (en) * 1992-01-22 1993-09-08 Loadmaster Ltd A clamp for a yieldable support
CN108953340A (en) * 2017-05-25 2018-12-07 通用电气公司 Spacer and bolted joints connector are crushed for gas-turbine unit
US11066958B2 (en) 2017-05-25 2021-07-20 General Electric Company Crushable spacer and bolted joint for a gas turbine engine
DE102021112870A1 (en) 2021-05-18 2022-11-24 PROMESS Gesellschaft für Montage- und Prüfsysteme mbH Compression sleeve for preloading screw connections

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