GB2058175B - Rotary cutting head - Google Patents

Rotary cutting head

Info

Publication number
GB2058175B
GB2058175B GB8029556A GB8029556A GB2058175B GB 2058175 B GB2058175 B GB 2058175B GB 8029556 A GB8029556 A GB 8029556A GB 8029556 A GB8029556 A GB 8029556A GB 2058175 B GB2058175 B GB 2058175B
Authority
GB
United Kingdom
Prior art keywords
cutting head
rotary cutting
rotary
head
cutting
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
GB8029556A
Other versions
GB2058175A (en
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.)
Hall and Pickles Ltd
Original Assignee
Hall and Pickles 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 Hall and Pickles Ltd filed Critical Hall and Pickles Ltd
Priority to GB8029556A priority Critical patent/GB2058175B/en
Publication of GB2058175A publication Critical patent/GB2058175A/en
Application granted granted Critical
Publication of GB2058175B publication Critical patent/GB2058175B/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21C35/187—Mining picks; Holders therefor with arrangement of fluid-spraying nozzles

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)
  • Nozzles (AREA)
GB8029556A 1979-09-18 1980-09-12 Rotary cutting head Expired GB2058175B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8029556A GB2058175B (en) 1979-09-18 1980-09-12 Rotary cutting head

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7932224 1979-09-18
GB8029556A GB2058175B (en) 1979-09-18 1980-09-12 Rotary cutting head

Publications (2)

Publication Number Publication Date
GB2058175A GB2058175A (en) 1981-04-08
GB2058175B true GB2058175B (en) 1983-03-16

Family

ID=26272916

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8029556A Expired GB2058175B (en) 1979-09-18 1980-09-12 Rotary cutting head

Country Status (1)

Country Link
GB (1) GB2058175B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4765686A (en) * 1987-10-01 1988-08-23 Gte Valenite Corporation Rotatable cutting bit for a mining machine
AT389738B (en) * 1988-04-28 1990-01-25 Voest Alpine Ag DEVICE FOR INTERMITTENTLY SPRAYING CHISELS OF A SCREW HEAD
GB8928133D0 (en) * 1989-12-13 1990-02-14 Hydra Tools Int Plc Rotary cutting head

Also Published As

Publication number Publication date
GB2058175A (en) 1981-04-08

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
746 Register noted 'licences of right' (sect. 46/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
747 Application for cancellation of 'licences of right' in the register (sect. 47/1977)
747A Proceeding under section 47 patents act 1977
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940912