ZA732060B - Electrical storage batteries - Google Patents

Electrical storage batteries

Info

Publication number
ZA732060B
ZA732060B ZA732060A ZA732060A ZA732060B ZA 732060 B ZA732060 B ZA 732060B ZA 732060 A ZA732060 A ZA 732060A ZA 732060 A ZA732060 A ZA 732060A ZA 732060 B ZA732060 B ZA 732060B
Authority
ZA
South Africa
Prior art keywords
electrical storage
storage batteries
batteries
electrical
storage
Prior art date
Application number
ZA732060A
Inventor
D Bennett
Original Assignee
Lucas Industries 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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of ZA732060B publication Critical patent/ZA732060B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
ZA732060A 1972-03-24 1973-03-26 Electrical storage batteries ZA732060B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1397372A GB1391484A (en) 1972-03-24 1972-03-24 Mineral mining systems

Publications (1)

Publication Number Publication Date
ZA732060B true ZA732060B (en) 1974-01-30

Family

ID=10032733

Family Applications (2)

Application Number Title Priority Date Filing Date
ZA731854A ZA731854B (en) 1972-03-24 1973-03-16 Improvements in or relating to mine roof supports
ZA732060A ZA732060B (en) 1972-03-24 1973-03-26 Electrical storage batteries

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ZA731854A ZA731854B (en) 1972-03-24 1973-03-16 Improvements in or relating to mine roof supports

Country Status (4)

Country Link
US (1) US3856356A (en)
AU (1) AU470683B2 (en)
GB (1) GB1391484A (en)
ZA (2) ZA731854B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102550A (en) * 1976-04-20 1978-07-25 Peabody Coal Company Mining method and apparatus
US4082360A (en) * 1976-06-23 1978-04-04 Peabody Coal Company Mining apparatus and method
US4119346A (en) * 1977-05-02 1978-10-10 M.A.T. Industries, Inc. Longwall mining system
US4836612A (en) * 1987-08-25 1989-06-06 Serata Geomechanics, Inc. Stress control mining method and apparatus
DE10046497C2 (en) * 2000-09-20 2002-12-12 Dbt Gmbh Extraction facility for underground ore mining operations and method for extracting mining products in underground ore mining operations
US8985699B2 (en) * 2013-03-14 2015-03-24 Seneca Industries Inc. Mining methods and equipment
CN112483088B (en) * 2020-12-15 2022-03-29 中国矿业大学(北京) Fluidized unmanned reverse circulation coal mining method
CN113279759B (en) * 2021-06-29 2024-03-22 上海煤科信息科技有限公司 Geological exploration exploitation method and system for coal mining process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE545472A (en) * 1955-02-23
GB991011A (en) * 1962-09-03 1965-05-05 Dowty Mining Equipment Ltd Roof support assembly
GB1310228A (en) * 1969-10-16 1973-03-14 Gullick Dobson Ltd Method of mining and an apparatus for the carrying out of said method

Also Published As

Publication number Publication date
US3856356A (en) 1974-12-24
AU470683B2 (en) 1976-03-25
AU5345873A (en) 1974-09-19
ZA731854B (en) 1974-01-30
GB1391484A (en) 1975-04-23

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