BR7401725D0 - Aperfeicoamentos em compartimento de carga, e suporte de mina e parafuso de liqacao - Google Patents

Aperfeicoamentos em compartimento de carga, e suporte de mina e parafuso de liqacao

Info

Publication number
BR7401725D0
BR7401725D0 BR1725/74A BR172574A BR7401725D0 BR 7401725 D0 BR7401725 D0 BR 7401725D0 BR 1725/74 A BR1725/74 A BR 1725/74A BR 172574 A BR172574 A BR 172574A BR 7401725 D0 BR7401725 D0 BR 7401725D0
Authority
BR
Brazil
Prior art keywords
load compartment
mine support
liquid screw
screw
liquid
Prior art date
Application number
BR1725/74A
Other languages
English (en)
Portuguese (pt)
Inventor
R Townsend
Original Assignee
Bakke International Sa
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
Priority claimed from ZA731578A external-priority patent/ZA731578B/xx
Application filed by Bakke International Sa filed Critical Bakke International Sa
Publication of BR7401725D0 publication Critical patent/BR7401725D0/pt

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
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/18—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium upon excessive pressure

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)
  • Vibration Dampers (AREA)
  • Lining And Supports For Tunnels (AREA)
BR1725/74A 1973-03-07 1974-03-07 Aperfeicoamentos em compartimento de carga, e suporte de mina e parafuso de liqacao BR7401725D0 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA731578A ZA731578B (en) 1973-03-07 1973-03-07 Compressible mine supports
ZA735579 1973-08-15

Publications (1)

Publication Number Publication Date
BR7401725D0 true BR7401725D0 (pt) 1974-11-19

Family

ID=27131073

Family Applications (1)

Application Number Title Priority Date Filing Date
BR1725/74A BR7401725D0 (pt) 1973-03-07 1974-03-07 Aperfeicoamentos em compartimento de carga, e suporte de mina e parafuso de liqacao

Country Status (7)

Country Link
JP (1) JPS5040401A (de)
AT (1) AT332343B (de)
AU (1) AU6632974A (de)
BR (1) BR7401725D0 (de)
DE (1) DE2410976A1 (de)
FR (1) FR2220665B1 (de)
ZM (1) ZM4574A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19503071B4 (de) * 1994-08-25 2004-02-12 Sz Schacht- Und Streckenausbau Gmbh Teleskopstempel für den Einsatz im untertägigen Berg-, Tunnel- und Hochbau
EP1563166B1 (de) * 2002-11-08 2008-04-23 Grinaker-LTA Limited Grubenstempel
US8851805B2 (en) * 2012-08-30 2014-10-07 Burrell Mining Products, Inc. Telescopic mine roof support
US20170130580A1 (en) * 2012-08-30 2017-05-11 Burrell Mining Products, Inc. Telescopic mine roof support
US9611738B2 (en) 2014-08-27 2017-04-04 Burrell Mining Products, Inc. Ventilated mine roof support
US9903203B2 (en) 2014-08-27 2018-02-27 Burrell Mining Products, Inc. Ventilated mine roof support
WO2018017948A1 (en) * 2016-07-21 2018-01-25 Burrell Mining Products, Inc. Telescopic mine roof support

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB941768A (en) * 1961-03-06 1963-11-13 Dowty Mining Equipment Ltd Telescopic pit props having external guard shrouds
FR1316824A (fr) * 1962-03-02 1963-02-01 Cadre pour l'exploitation de mines
GB1016292A (en) * 1963-05-15 1966-01-12 Stewarts & Lloyds Ltd A yielding strut
GB1227359A (de) * 1968-04-01 1971-04-07

Also Published As

Publication number Publication date
DE2410976A1 (de) 1974-09-12
FR2220665B1 (de) 1978-01-06
ATA188774A (de) 1976-01-15
JPS5040401A (de) 1975-04-14
AU6632974A (en) 1975-09-11
AT332343B (de) 1976-09-27
ZM4574A1 (en) 1975-06-23
FR2220665A1 (de) 1974-10-04

Similar Documents

Publication Publication Date Title
BR7403712D0 (pt) Unidade de painel
BR7401176D0 (pt) Aperfeicoamentos em involucros de pneumaticos
BR7410715D0 (pt) Aperfeicoamento em involucros de pneumaticos
SE411112B (sv) Transportorsystem
RO76729A2 (ro) Sasiu deformabil pentru combine de recoltat
CH557479A (de) Selbstschneidende schraube.
NL7407231A (nl) Schroefdraadstift.
AU6805374A (en) Construction support arrangement
BR7401725D0 (pt) Aperfeicoamentos em compartimento de carga, e suporte de mina e parafuso de liqacao
NL7413324A (nl) Met een hoge spanning werkende en door een stof gekoelde inrichting en toevoer- ngen daarvoor.
BR7404733D0 (pt) Painel de construcao
NL7415797A (nl) Half-automatisch laadstelsel.
GB1415125A (en) Hydraulic load sensitive system
BR7401781D0 (pt) Conjunto de parafuso de ancoragem
BR7400883D0 (pt) Folha portadora de carga
BR7408217D0 (pt) Aperfeicoamentos em debitometro de liquidos
DK139382C (da) Lastvogn
SE7411652L (sv) Styrsystem for aluminiumreduktionsceller.
NL7412809A (nl) Schroevenautomaat.
MY8000202A (en) Improvements in solvent systems
BE819287A (fr) Self de deparasitage
NL7412957A (nl) Stekerstelsel.
SE391164B (sv) Storlastbehallare
SU469660A1 (ru) Кантователь грузов
SU474710A1 (ru) Силоизмерительное устройство