GB1091602A - Roof support suitable for use in mines - Google Patents

Roof support suitable for use in mines

Info

Publication number
GB1091602A
GB1091602A GB10096/64A GB1009664A GB1091602A GB 1091602 A GB1091602 A GB 1091602A GB 10096/64 A GB10096/64 A GB 10096/64A GB 1009664 A GB1009664 A GB 1009664A GB 1091602 A GB1091602 A GB 1091602A
Authority
GB
United Kingdom
Prior art keywords
props
roof
prop
bolted
lugs
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
GB10096/64A
Inventor
Thomas Desmond Hudson Andrews
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.)
Dowty Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment 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 Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Priority to GB10096/64A priority Critical patent/GB1091602A/en
Priority to US430922A priority patent/US3381480A/en
Priority to FR8601A priority patent/FR1426031A/en
Publication of GB1091602A publication Critical patent/GB1091602A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
    • A61K35/66—Microorganisms or materials therefrom
    • A61K35/74—Bacteria
    • A61K35/741—Probiotics
    • A61K35/742—Spore-forming bacteria, e.g. Bacillus coagulans, Bacillus subtilis, clostridium or Lactobacillus sporogenes
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/20—Bacteria; Culture media therefor
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/20—Bacteria; Culture media therefor
    • C12N1/205—Bacterial isolates
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P1/00—Preparation of compounds or compositions, not provided for in groups C12P3/00 - C12P39/00, by using microorganisms or enzymes
    • C12P1/04—Preparation of compounds or compositions, not provided for in groups C12P3/00 - C12P39/00, by using microorganisms or enzymes by using bacteria
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0418—Positioning devices and stabilizing means for the props
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12R—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
    • C12R2001/00—Microorganisms ; Processes using microorganisms
    • C12R2001/01—Bacteria or Actinomycetales ; using bacteria or Actinomycetales
    • C12R2001/07—Bacillus
    • C12R2001/125—Bacillus subtilis ; Hay bacillus; Grass bacillus

Abstract

1,091,602. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. Jan. 6, 1965 [March 10, 1964], No. 10096/64. Heading E1E. A roof support includes two spaced parallel floor beams 3, 8 connected together by top and bottom plates and carrying two extendable props 4 and three such props 9 respectively, carrying a roof-engageable member, each prop being located in a mounting 5 in the beam 3 or 8 and including pre-compressed rubber bodies 6 to urge the prop to be at a predetermined angle to the beam 3 or 8 while allowing the prop a limited amount of angular movement relative to the beam. The top and vertical sides of each beam 3, 8 are of a single piece of material. The plates are separated by the inner vertical sides of the beams 3, 8 to form a torsion-resisting box. The props 4, 9 carry a roof-engageable member between them or one for each lot, such as 7, and a member 11 which is pivoted on another member. A shield 22 bolted on lugs 23 at its lower portion has its upper portion bolted to struts 24 at one end thereof which are bolted at the other end to lugs 25, to tend to reduce the mined material falling between the props 4, 9 from the rear of the support.
GB10096/64A 1964-03-10 1964-03-10 Roof support suitable for use in mines Expired GB1091602A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB10096/64A GB1091602A (en) 1964-03-10 1964-03-10 Roof support suitable for use in mines
US430922A US3381480A (en) 1964-03-10 1965-02-08 Roof supports suitable for use in mines
FR8601A FR1426031A (en) 1964-03-10 1965-03-10 Roof support device for mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10096/64A GB1091602A (en) 1964-03-10 1964-03-10 Roof support suitable for use in mines

Publications (1)

Publication Number Publication Date
GB1091602A true GB1091602A (en) 1967-11-22

Family

ID=9961409

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10096/64A Expired GB1091602A (en) 1964-03-10 1964-03-10 Roof support suitable for use in mines

Country Status (3)

Country Link
US (1) US3381480A (en)
FR (1) FR1426031A (en)
GB (1) GB1091602A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534559A (en) * 1968-01-17 1970-10-20 Gullick Ltd Mine roof supports
US3646769A (en) * 1968-10-01 1972-03-07 Gullick Ltd Mine roof support

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523424A (en) * 1968-11-25 1970-08-11 Gullick Ltd Mine roof supports
GB2062735B (en) * 1979-11-09 1983-08-10 Dobson Park Ind Coal face support
DE8620900U1 (en) * 1986-08-04 1986-10-16 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Expansion unit for underground longwall mining

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332192A (en) * 1963-12-16
FR1310022A (en) * 1963-03-04
DE972551C (en) * 1953-01-09 1959-08-13 Sueddeutsche Kalkstickstoff Process for the production of white calcium cyanamide
DE1090159B (en) * 1957-04-30 1960-10-06 Ewald Wiemann Maschf Hydraulic migratory longwall mining
AT202954B (en) * 1958-05-03 1959-04-25 Oesterr Alpine Montan Towing frame or hiking pillar
GB998336A (en) * 1962-12-05 1965-07-14 Gullick Ltd Improvements in or relating to mine roof and like supports

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534559A (en) * 1968-01-17 1970-10-20 Gullick Ltd Mine roof supports
US3646769A (en) * 1968-10-01 1972-03-07 Gullick Ltd Mine roof support

Also Published As

Publication number Publication date
US3381480A (en) 1968-05-07
FR1426031A (en) 1966-01-24

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