GB1133748A - Hydraulic jacking system for coal cutting machines - Google Patents

Hydraulic jacking system for coal cutting machines

Info

Publication number
GB1133748A
GB1133748A GB4858066A GB4858066A GB1133748A GB 1133748 A GB1133748 A GB 1133748A GB 4858066 A GB4858066 A GB 4858066A GB 4858066 A GB4858066 A GB 4858066A GB 1133748 A GB1133748 A GB 1133748A
Authority
GB
United Kingdom
Prior art keywords
hydraulic jacking
jacking system
steerable
jack
oct
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
GB4858066A
Inventor
Frank Clayton
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.)
ODDY ENGINEERING Ltd
Original Assignee
ODDY ENGINEERING 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 ODDY ENGINEERING Ltd filed Critical ODDY ENGINEERING Ltd
Priority to GB4858066A priority Critical patent/GB1133748A/en
Publication of GB1133748A publication Critical patent/GB1133748A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/06—Equipment for positioning the whole machine in relation to its sub-structure

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)
  • Shearing Machines (AREA)

Abstract

1,133,748. Steerable mineral-m in i n g machines. ODDY ENG. Ltd. 27 Oct., 1967 [29 Oct., 1966], No. 48580/66. Heading E1F. To prevent straining of the hydraulic jacking system of a steerable mining machine when floor-supported guide rails or conveyer side frames slidingly engaged by the lower end of the or each jack of the system change direction vertically at a greater rate than the cutting of the face by the machine can permit the or each jack of the system involves a multi-cylinder, telescopic structure in which a lost motion is permrssible between the cylinders of the structure when required to relieve the possibility of strain arising from the stated mining conditions.
GB4858066A 1966-10-29 1966-10-29 Hydraulic jacking system for coal cutting machines Expired GB1133748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4858066A GB1133748A (en) 1966-10-29 1966-10-29 Hydraulic jacking system for coal cutting machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4858066A GB1133748A (en) 1966-10-29 1966-10-29 Hydraulic jacking system for coal cutting machines

Publications (1)

Publication Number Publication Date
GB1133748A true GB1133748A (en) 1968-11-13

Family

ID=10449117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4858066A Expired GB1133748A (en) 1966-10-29 1966-10-29 Hydraulic jacking system for coal cutting machines

Country Status (1)

Country Link
GB (1) GB1133748A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102337889A (en) * 2011-10-12 2012-02-01 三一重型装备有限公司 Coal mining machine and supporting device thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102337889A (en) * 2011-10-12 2012-02-01 三一重型装备有限公司 Coal mining machine and supporting device thereof
CN102337889B (en) * 2011-10-12 2015-05-20 三一重型装备有限公司 Coal mining machine and supporting device thereof

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