BE721791A - - Google Patents

Info

Publication number
BE721791A
BE721791A BE721791DA BE721791A BE 721791 A BE721791 A BE 721791A BE 721791D A BE721791D A BE 721791DA BE 721791 A BE721791 A BE 721791A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE721791A publication Critical patent/BE721791A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
    • E21C29/02—Propulsion of machines for slitting or completely freeing the mineral from the seam by means on the machine exerting a thrust against fixed supports
BE721791D 1967-10-27 1968-10-03 BE721791A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR126239 1967-10-27

Publications (1)

Publication Number Publication Date
BE721791A true BE721791A (de) 1969-04-03

Family

ID=8640905

Family Applications (1)

Application Number Title Priority Date Filing Date
BE721791D BE721791A (de) 1967-10-27 1968-10-03

Country Status (6)

Country Link
US (1) US3537754A (de)
BE (1) BE721791A (de)
CA (1) CA918688A (de)
DE (2) DE1805339A1 (de)
FR (1) FR1548671A (de)
GB (1) GB1222229A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1291427A (en) * 1970-05-15 1972-10-04 Coal Industry Patents Ltd Haulage apparatus for a mining machine
GB1352543A (en) * 1971-05-22 1974-05-08 Pitcraft Ltd Mineral mining installations
US3871277A (en) * 1974-02-25 1975-03-18 Robert Benjamin Bolton Tracked walking gear
GB1529516A (en) * 1976-04-23 1978-10-25 Dresser Europe Sa Mining machine
FR2356808A1 (fr) * 1976-07-02 1978-01-27 Gp Konstruk Systeme d'avance d'une abatteuse-chargeuse
FR2372314A1 (fr) * 1976-11-26 1978-06-23 Charbonnages De France Machine de predecoupage d'une saignee autour d'un front d'abattage
GB1579484A (en) * 1977-03-15 1980-11-19 Coal Industry Patents Ltd Engagement devices
DE2855641A1 (de) * 1978-12-22 1980-07-10 Beukenberg Maschf Schreitwerk fuer eine gewinnungsmaschine
GB2126983A (en) * 1982-09-07 1984-04-04 Charles Hoyle A jack system
SU1209850A1 (ru) * 1983-01-11 1986-02-07 Государственный проектно-конструкторский и экспериментальный институт угольного машиностроения "Гипроуглемаш" Бесцепна система подачи выемочного комбайна
GB2150913A (en) * 1983-08-09 1985-07-10 Hugh Kane Self propelled carriage
GB8905202D0 (en) * 1989-03-08 1989-04-19 Qualter Hall & Co Ltd Power operated device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US850018A (en) * 1907-02-07 1907-04-09 Cornelius Kohlmyer Motor-vehicle.
US2391657A (en) * 1944-03-21 1945-12-25 Tavelin Jacob Erhard Train booster
US2581052A (en) * 1946-03-25 1952-01-01 Mavor & Coulson Ltd Haulage apparatus for mining machines

Also Published As

Publication number Publication date
GB1222229A (en) 1971-02-10
DE1805341A1 (de) 1969-05-14
FR1548671A (de) 1968-12-06
CA918688A (en) 1973-01-09
DE1805339A1 (de) 1969-07-10
US3537754A (en) 1970-11-03

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: CHARBONNAGES DE FRANCE

Effective date: 19851031