GB2216826B - Retaining devices - Google Patents

Retaining devices

Info

Publication number
GB2216826B
GB2216826B GB8807879A GB8807879A GB2216826B GB 2216826 B GB2216826 B GB 2216826B GB 8807879 A GB8807879 A GB 8807879A GB 8807879 A GB8807879 A GB 8807879A GB 2216826 B GB2216826 B GB 2216826B
Authority
GB
United Kingdom
Prior art keywords
retaining devices
retaining
devices
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 - Fee Related
Application number
GB8807879A
Other versions
GB8807879D0 (en
GB2216826A (en
Inventor
James Colin Mcglashen
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.)
Gullick Dobson Ltd
Original Assignee
Gullick Dobson 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 Gullick Dobson Ltd filed Critical Gullick Dobson Ltd
Priority to GB8807879A priority Critical patent/GB2216826B/en
Publication of GB8807879D0 publication Critical patent/GB8807879D0/en
Publication of GB2216826A publication Critical patent/GB2216826A/en
Application granted granted Critical
Publication of GB2216826B publication Critical patent/GB2216826B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
GB8807879A 1988-04-05 1988-04-05 Retaining devices Expired - Fee Related GB2216826B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8807879A GB2216826B (en) 1988-04-05 1988-04-05 Retaining devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8807879A GB2216826B (en) 1988-04-05 1988-04-05 Retaining devices

Publications (3)

Publication Number Publication Date
GB8807879D0 GB8807879D0 (en) 1988-05-05
GB2216826A GB2216826A (en) 1989-10-18
GB2216826B true GB2216826B (en) 1992-03-04

Family

ID=10634549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8807879A Expired - Fee Related GB2216826B (en) 1988-04-05 1988-04-05 Retaining devices

Country Status (1)

Country Link
GB (1) GB2216826B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB568225A (en) * 1943-10-01 1945-03-23 Alfred William Beavon Improvements in taper plug and socket joints
US3534640A (en) * 1968-05-16 1970-10-20 Gen Electro Mech Corp Tool coupling device
GB1242052A (en) * 1967-05-25 1971-08-11 Wickman Wimet Ltd Percussive rock drilling apparatus
GB1275443A (en) * 1968-11-29 1972-05-24 Halifax Tool Co Ltd Improvements in or relating to percussion drills
GB1342470A (en) * 1969-12-22 1974-01-03 Staveley Ind Ltd Machine-tool spindles or chucks
GB2141659A (en) * 1983-06-20 1985-01-03 Vnii Pk I Mechanizirovannogo Tool retainer for a percussive tool
US4702328A (en) * 1985-11-22 1987-10-27 Mcsweeney Lawrence H Roof drilling system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB568225A (en) * 1943-10-01 1945-03-23 Alfred William Beavon Improvements in taper plug and socket joints
GB1242052A (en) * 1967-05-25 1971-08-11 Wickman Wimet Ltd Percussive rock drilling apparatus
US3534640A (en) * 1968-05-16 1970-10-20 Gen Electro Mech Corp Tool coupling device
GB1275443A (en) * 1968-11-29 1972-05-24 Halifax Tool Co Ltd Improvements in or relating to percussion drills
GB1342470A (en) * 1969-12-22 1974-01-03 Staveley Ind Ltd Machine-tool spindles or chucks
GB2141659A (en) * 1983-06-20 1985-01-03 Vnii Pk I Mechanizirovannogo Tool retainer for a percussive tool
US4702328A (en) * 1985-11-22 1987-10-27 Mcsweeney Lawrence H Roof drilling system

Also Published As

Publication number Publication date
GB8807879D0 (en) 1988-05-05
GB2216826A (en) 1989-10-18

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Legal Events

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

Effective date: 19940405