GB1419900A - Bit and block assembly - Google Patents

Bit and block assembly

Info

Publication number
GB1419900A
GB1419900A GB2506974A GB2506974A GB1419900A GB 1419900 A GB1419900 A GB 1419900A GB 2506974 A GB2506974 A GB 2506974A GB 2506974 A GB2506974 A GB 2506974A GB 1419900 A GB1419900 A GB 1419900A
Authority
GB
United Kingdom
Prior art keywords
mineral
sleeve
bit
block
protuberances
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
GB2506974A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2506974A priority Critical patent/GB1419900A/en
Publication of GB1419900A publication Critical patent/GB1419900A/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
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material

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)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

1419900 Mineral-mining pick assemblies G W ELDERS 6 June 1974 25069/74 Heading E1F Rotation of a point attack, mineral-mining bit 16 non-rotatably secured in a sleeve 25 rotatable in a bore 11 in a block 10 is obtained from engagement of the mineral being mined by the pick with protuberances on the enlarged head 13 of the sleeve 25 as the block is advanced, the protuberances, which may be fins 42 or knobs disposed in circumferentially spaced rows on the head, extending generally longitudinally of and at an angle to the longitudinal axis of the sleeve.
GB2506974A 1974-06-06 1974-06-06 Bit and block assembly Expired GB1419900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2506974A GB1419900A (en) 1974-06-06 1974-06-06 Bit and block assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2506974A GB1419900A (en) 1974-06-06 1974-06-06 Bit and block assembly

Publications (1)

Publication Number Publication Date
GB1419900A true GB1419900A (en) 1975-12-31

Family

ID=10221709

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2506974A Expired GB1419900A (en) 1974-06-06 1974-06-06 Bit and block assembly

Country Status (1)

Country Link
GB (1) GB1419900A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702525A (en) * 1985-04-08 1987-10-27 Sollami Phillip A Conical bit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702525A (en) * 1985-04-08 1987-10-27 Sollami Phillip A Conical bit

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee