FR835071A - Perfectionnements apportés aux haveuses et machines analogues - Google Patents

Perfectionnements apportés aux haveuses et machines analogues

Info

Publication number
FR835071A
FR835071A FR835071DA FR835071A FR 835071 A FR835071 A FR 835071A FR 835071D A FR835071D A FR 835071DA FR 835071 A FR835071 A FR 835071A
Authority
FR
France
Prior art keywords
cutters
improvements made
similar machines
machines
similar
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
Other languages
English (en)
Inventor
Oswald Floyd Lewis
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.)
Newton Chambers and Co Ltd
NEWTON
Original Assignee
Newton Chambers and Co Ltd
NEWTON
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 Newton Chambers and Co Ltd, NEWTON filed Critical Newton Chambers and Co Ltd
Application granted granted Critical
Publication of FR835071A publication Critical patent/FR835071A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/22—Machines slitting solely by one or more cutter chains moving unidirectionally along jibs
    • E21C25/28—Chains or chain guides

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Chain Conveyers (AREA)
  • Sawing (AREA)
FR835071D 1937-03-12 1938-03-10 Perfectionnements apportés aux haveuses et machines analogues Expired FR835071A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7304/37A GB482637A (en) 1937-03-12 1937-03-12 Improvements in or relating to coal cutting and like machines

Publications (1)

Publication Number Publication Date
FR835071A true FR835071A (fr) 1938-12-12

Family

ID=9830558

Family Applications (1)

Application Number Title Priority Date Filing Date
FR835071D Expired FR835071A (fr) 1937-03-12 1938-03-10 Perfectionnements apportés aux haveuses et machines analogues

Country Status (4)

Country Link
US (1) US2189669A (fr)
BE (1) BE426870A (fr)
FR (1) FR835071A (fr)
GB (1) GB482637A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650813A (en) * 1949-08-06 1953-09-01 Joy Mfg Co Disintegrating and gathering chain structure
US7628424B2 (en) * 2006-12-08 2009-12-08 Innerworx, Llc Trenching machine with linked chain
RU2012101215A (ru) * 2009-07-13 2013-08-20 Вермир Мэньюфэкчеринг Компэни Землеройный компонент (варианты)

Also Published As

Publication number Publication date
US2189669A (en) 1940-02-06
BE426870A (fr)
GB482637A (en) 1938-04-01

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