EP0130770A3 - Collapsible elongate mine support - Google Patents

Collapsible elongate mine support Download PDF

Info

Publication number
EP0130770A3
EP0130770A3 EP84304291A EP84304291A EP0130770A3 EP 0130770 A3 EP0130770 A3 EP 0130770A3 EP 84304291 A EP84304291 A EP 84304291A EP 84304291 A EP84304291 A EP 84304291A EP 0130770 A3 EP0130770 A3 EP 0130770A3
Authority
EP
European Patent Office
Prior art keywords
pole
mine support
collapsible elongate
collapsible
elongate 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.)
Withdrawn
Application number
EP84304291A
Other languages
German (de)
French (fr)
Other versions
EP0130770A2 (en
Inventor
Dirk Cornelius Stephanus Venter
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.)
BESTOBELL SOUTH AFRICA Ltd
Original Assignee
BESTOBELL SOUTH AFRICA 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 BESTOBELL SOUTH AFRICA Ltd filed Critical BESTOBELL SOUTH AFRICA Ltd
Publication of EP0130770A2 publication Critical patent/EP0130770A2/en
Publication of EP0130770A3 publication Critical patent/EP0130770A3/en
Withdrawn legal-status Critical Current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
    • E21D15/14—Telescopic props

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

A mine support comprises a length of timber pole (1) with wood removed to form longitudinally extending and tapering planar strips (2) spaced circumferentially around it. The adja­ cent edges of the planar surfaces do not need to undercut the pole circumference, and a reinforcing sleeve (6) is fitted over the pole against the pole surface around and between the pla­ nar surfaces.
EP84304291A 1983-06-24 1984-06-25 Collapsible elongate mine support Withdrawn EP0130770A3 (en)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
ZA834619 1983-06-24
ZA834619 1983-06-24
ZA834618 1983-06-24
ZA834618 1983-06-24
ZA837625 1983-10-13
ZA837625 1983-10-13
ZA837657 1983-10-14
ZA837657 1983-10-14
ZA838465 1983-11-14
ZA838465 1983-11-14
ZA84824 1984-02-03
ZA840824 1984-02-03

Publications (2)

Publication Number Publication Date
EP0130770A2 EP0130770A2 (en) 1985-01-09
EP0130770A3 true EP0130770A3 (en) 1986-05-14

Family

ID=27560364

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84304291A Withdrawn EP0130770A3 (en) 1983-06-24 1984-06-25 Collapsible elongate mine support

Country Status (3)

Country Link
EP (1) EP0130770A3 (en)
CA (1) CA1218534A (en)
ZW (1) ZW9984A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8801338B2 (en) * 2011-11-28 2014-08-12 Micon Nested mine roof supports

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1642603A (en) * 1926-06-03 1927-09-13 Martin J Conway Reenforced mine prop
DE1088905B (en) * 1958-12-02 1960-09-15 Rheinstahl Gmbh Wanheim Process for the production of conical cylindrical inner punches
EP0028496A1 (en) * 1979-11-02 1981-05-13 Mine Support Systems (Proprietary) Limited Timber prop
GB2077808A (en) * 1980-05-09 1981-12-23 Longwall Mining Equipment Prop Improvements in props
GB2080364A (en) * 1980-07-22 1982-02-03 Hunt Leuchars & Hepburn Ltd Mine support prop
GB2081340A (en) * 1980-07-22 1982-02-17 Brown Allan Henry George Deformable mine prop
GB2096203A (en) * 1981-04-08 1982-10-13 Longwall Mining Equipment Prop Mine support

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1642603A (en) * 1926-06-03 1927-09-13 Martin J Conway Reenforced mine prop
DE1088905B (en) * 1958-12-02 1960-09-15 Rheinstahl Gmbh Wanheim Process for the production of conical cylindrical inner punches
EP0028496A1 (en) * 1979-11-02 1981-05-13 Mine Support Systems (Proprietary) Limited Timber prop
GB2077808A (en) * 1980-05-09 1981-12-23 Longwall Mining Equipment Prop Improvements in props
GB2080364A (en) * 1980-07-22 1982-02-03 Hunt Leuchars & Hepburn Ltd Mine support prop
GB2081340A (en) * 1980-07-22 1982-02-17 Brown Allan Henry George Deformable mine prop
GB2096203A (en) * 1981-04-08 1982-10-13 Longwall Mining Equipment Prop Mine support

Also Published As

Publication number Publication date
ZW9984A1 (en) 1984-09-19
EP0130770A2 (en) 1985-01-09
CA1218534A (en) 1987-03-03

Similar Documents

Publication Publication Date Title
TR23277A (en) END OF THE INDUCTION LOG WITH THE METAL CARRIER CARRIER
ES548105A0 (en) A GRIPPING HEAD FOR USE IN THE COLLECTION OF OBJECTS AND THEIR PLACEMENT IN DEFAULT POSITIONS.
BR8504746A (en) COMPOUND, COMPOSITION, PROCESS TO EXTERMINE HARMFUL DANE HERBS AND USE OF THE SAID COMPOUND
AU4963485A (en) Fastening means and method for the use with porous materials
AU7101787A (en) Method for joining the ends of two elongated elements provided with peropherical grooves and the joint thus obtained
AU3041584A (en) Winch with storable handle
FR2576537B1 (en) SHARPENING SLEEVE AND ITS COMBINATION WITH A KNIFE
IT1153726B (en) JOINTING WITH ANNULAR WEDGES ON FULL AND LAYERED WOOD PROFILES
AU554264B2 (en) Reinforcing end of wooden mine prop
EP0130770A3 (en) Collapsible elongate mine support
MX164079B (en) 3-POLYMERIZABLE AROYLOXYPHENYL CARBAMATES AND METHODS FOR THE PREPARATION AND USE
USD276192S (en) Brush or similar article
AU562608B2 (en) Suction pipe with trailing head
NL184414C (en) CRANE FOR APPLICATION TO RIGS AND THE LIKE.
KR870007009A (en) Joint structure at the axle end
AU3233784A (en) Expanding and facing collapsed honeycomb into continuous strip
AU575047B2 (en) Timber prop in metal sleeve
AU5108079A (en) Anchor with expanding sleeve
IT8467345A1 (en) METHOD OF JOINING RUBBER WITH POLISHED STEEL.
AU541160B2 (en) Sleeve joint
בעז שמיר Professionals in Search of Work: Coping with the Stress of Job Loss and Underemployment
JPS5498014A (en) Tent with sleeve
AU1683783A (en) Non-reusable timber prop with sleeved end
EP0142280A3 (en) Elongate mine support
USD252283S (en) Tendon hammer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19870102

RIN1 Information on inventor provided before grant (corrected)

Inventor name: VENTER, DIRK CORNELIUS STEPHANUS