FR2506833A1 - WATERPROOF, CHARGE SUPPORT - Google Patents

WATERPROOF, CHARGE SUPPORT

Info

Publication number
FR2506833A1
FR2506833A1 FR8200252A FR8200252A FR2506833A1 FR 2506833 A1 FR2506833 A1 FR 2506833A1 FR 8200252 A FR8200252 A FR 8200252A FR 8200252 A FR8200252 A FR 8200252A FR 2506833 A1 FR2506833 A1 FR 2506833A1
Authority
FR
France
Prior art keywords
sleeve
waterproof
charge support
wall
support
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Withdrawn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
FR8200252A
Other languages
French (fr)
Inventor
Michael John Thom
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.)
SUBROC SUPPORTS LT Pty
Original Assignee
SUBROC SUPPORTS LT Pty
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 SUBROC SUPPORTS LT Pty filed Critical SUBROC SUPPORTS LT Pty
Publication of FR2506833A1 publication Critical patent/FR2506833A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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

Abstract

L'INVENTION CONCERNE UN ETANCON SUPPORT DE MINE, DU TYPE A EXTRUSION, QUI COMPORTE UN MANCHON 12 COMPRENANT UN BOSSAGE INTERIEUR 16 DANS SA PAROI, ENTRE SES EXTREMITES POUR DEFINIR UN ETRANGLEMENT D'EXTRUSION DANS LE MANCHON ET UN POTEAU DE BOIS 10 SITUE DANS LE MANCHON 12 ET QUI EST EXTRUDE DANS L'ETRANGLEMENT DU MANCHON QUAND LE SUPPORT EST SOUMIS A UNE CHARGE PREDETERMINEE DANS SA DIRECTION AXIALE.THE INVENTION CONCERNS A MINE SUPPORT SEAL, OF THE EXTRUSION TYPE, WHICH INCLUDES A SLEEVE 12 INCLUDING AN INTERNAL BOSS 16 IN ITS WALL, BETWEEN ITS ENDS TO DEFINE AN EXTRUSION STRANGLE IN THE SLEEVE AND A WOODEN POST 10 LOCATED IN ITS WALL. SLEEVE 12 AND WHICH IS EXTRUDED INTO THE SLEEVE THROTTLE WHEN THE SUPPORT IS SUBJECT TO A PREDETERMINED LOAD IN ITS AXIAL DIRECTION.

FR8200252A 1981-05-27 1982-01-08 WATERPROOF, CHARGE SUPPORT Withdrawn FR2506833A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA813546 1981-05-27

Publications (1)

Publication Number Publication Date
FR2506833A1 true FR2506833A1 (en) 1982-12-03

Family

ID=25575438

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8200252A Withdrawn FR2506833A1 (en) 1981-05-27 1982-01-08 WATERPROOF, CHARGE SUPPORT

Country Status (5)

Country Link
AU (1) AU7967882A (en)
DE (1) DE3200338A1 (en)
FR (1) FR2506833A1 (en)
GB (1) GB2099040A (en)
ZW (1) ZW582A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149440A (en) * 1983-08-25 1985-06-12 Botha Raymond Berkley Mine prop
AT397286B (en) * 1990-09-26 1994-03-25 Voest Alpine Bergtechnik SUPPORT BRACKET
US5400994A (en) * 1991-01-22 1995-03-28 Dyckerhoff & Widmann Ag Of Munich Yieldable roof support system
ZA974419B (en) * 1996-05-22 1998-08-24 H L & H Timber Prod Mine props

Also Published As

Publication number Publication date
ZW582A1 (en) 1982-07-14
AU7967882A (en) 1982-12-02
DE3200338A1 (en) 1982-12-16
GB2099040A (en) 1982-12-01

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Legal Events

Date Code Title Description
ST Notification of lapse