FR1216017A - Improvements to shearers - Google Patents

Improvements to shearers

Info

Publication number
FR1216017A
FR1216017A FR783873A FR783873A FR1216017A FR 1216017 A FR1216017 A FR 1216017A FR 783873 A FR783873 A FR 783873A FR 783873 A FR783873 A FR 783873A FR 1216017 A FR1216017 A FR 1216017A
Authority
FR
France
Prior art keywords
shearers
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.)
Expired
Application number
FR783873A
Other languages
French (fr)
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.)
HEELEY MINING MACHINERY COMPAN
Original Assignee
HEELEY MINING MACHINERY COMPAN
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 HEELEY MINING MACHINERY COMPAN filed Critical HEELEY MINING MACHINERY COMPAN
Application granted granted Critical
Publication of FR1216017A publication Critical patent/FR1216017A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
    • E21C25/10—Rods; Drums
FR783873A 1962-02-22 1959-01-13 Improvements to shearers Expired FR1216017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB687362A GB954122A (en) 1962-02-22 1962-02-22 Improvements in or relating to coal cutting machines

Publications (1)

Publication Number Publication Date
FR1216017A true FR1216017A (en) 1960-04-21

Family

ID=9822339

Family Applications (1)

Application Number Title Priority Date Filing Date
FR783873A Expired FR1216017A (en) 1962-02-22 1959-01-13 Improvements to shearers

Country Status (6)

Country Link
BE (1) BE628743A (en)
CH (2) CH348382A (en)
DE (2) DE1189496B (en)
FR (1) FR1216017A (en)
GB (2) GB906023A (en)
LU (2) LU36989A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1265686B (en) * 1966-10-20 1968-04-11 Tungsten Carbide Developments Pick with pick housing for coal cutting machines
US4968101A (en) * 1987-07-06 1990-11-06 Bossow Emory R Vertical asphalt and concrete miller
US5470131A (en) * 1994-06-21 1995-11-28 Americore Technologies, Inc. Methods and apparatus for cutting circular slots in pavement extending about manhole castings
DE102008001089B3 (en) * 2008-04-09 2009-08-06 Erkat Spezialmaschinen Und Service Gmbh Cutting head body and cutting head for a propulsion or extraction machine and method for their preparation
CN102383790A (en) * 2011-10-27 2012-03-21 山西晋煤集团金鼎煤机矿业有限责任公司 Novel cutting head spiral drum used for shearer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB321788A (en) * 1928-10-10 1929-11-21 George Arthur Hirst Improvements relating to coal cutting machines
DE939261C (en) * 1953-03-01 1956-02-16 Eickhoff Maschinenfabrik Geb Schraemmaschine with a chain cutter arm and a Schraemwalze

Also Published As

Publication number Publication date
GB954122A (en) 1964-04-02
DE1910012U (en) 1965-02-18
GB906023A (en) 1962-09-19
BE628743A (en) 1963-06-17
DE1189496B (en) 1965-03-25
LU43242A1 (en) 1963-04-22
CH394992A (en) 1965-07-15
CH348382A (en) 1960-08-31
LU36989A1 (en) 1960-09-01

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