GB342876A - Improvements in pit props - Google Patents

Improvements in pit props

Info

Publication number
GB342876A
GB342876A GB1827/30A GB182730A GB342876A GB 342876 A GB342876 A GB 342876A GB 1827/30 A GB1827/30 A GB 1827/30A GB 182730 A GB182730 A GB 182730A GB 342876 A GB342876 A GB 342876A
Authority
GB
United Kingdom
Prior art keywords
sleeve
main portion
consett
bearing plate
mine props
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
GB1827/30A
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.)
Consett Iron Co Ltd
Original Assignee
Consett Iron Co 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 Consett Iron Co Ltd filed Critical Consett Iron Co Ltd
Priority to GB1827/30A priority Critical patent/GB342876A/en
Publication of GB342876A publication Critical patent/GB342876A/en
Expired legal-status Critical Current

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
    • E21D15/50—Component parts or details of props
    • E21D15/52—Extensible units located above or below standard props
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E04G25/066—Shores or struts; Chocks telescopic with parts held together by positive means by a wedge

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Civil Engineering (AREA)
  • Floor Finish (AREA)

Abstract

342,876. Mine props. CONSETT IRON CO., Ltd. and SCHOLES, J., Lea Hurst, Aynsley Terrace, both in Consett, Durham. Jan. 18, 1930, No. 1827. [Class 20 (ii).] Mine props of the type comprising a main portion, a slidable sleeve with a wooden plug on the end of the main portion, and a metal wedge passing through apertures in the sleeve whereby it may be adjusted with respect to the main portion, are provided with continuous metal bearing plates 7 formed integrally with or secured to the sleeves 5 to rest upon the upper surface of the adjusting wedges 3 which are of hollow formation. The bearing plate may be welded to the sleeve or according to the Provisional Specification, parts of the sleeve may be slit and bent over to form an integral bearing plate.
GB1827/30A 1930-01-18 1930-01-18 Improvements in pit props Expired GB342876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1827/30A GB342876A (en) 1930-01-18 1930-01-18 Improvements in pit props

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1827/30A GB342876A (en) 1930-01-18 1930-01-18 Improvements in pit props

Publications (1)

Publication Number Publication Date
GB342876A true GB342876A (en) 1931-02-12

Family

ID=9728688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1827/30A Expired GB342876A (en) 1930-01-18 1930-01-18 Improvements in pit props

Country Status (1)

Country Link
GB (1) GB342876A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE864238C (en) * 1949-03-08 1953-01-22 Press Und Stanzwerk Golzheim Robbery shoe for stamp heads
US3632075A (en) * 1969-04-02 1972-01-04 Devars Naudo & Cie Entreprises Dismantling keybolt for a propping-up and supporting framework

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE864238C (en) * 1949-03-08 1953-01-22 Press Und Stanzwerk Golzheim Robbery shoe for stamp heads
US3632075A (en) * 1969-04-02 1972-01-04 Devars Naudo & Cie Entreprises Dismantling keybolt for a propping-up and supporting framework

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