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GB206277A - Improvements in and relating to fishing tools for use in well boring - Google Patents

Improvements in and relating to fishing tools for use in well boring

Info

Publication number
GB206277A
GB206277A GB2289322A GB2289322A GB206277A GB 206277 A GB206277 A GB 206277A GB 2289322 A GB2289322 A GB 2289322A GB 2289322 A GB2289322 A GB 2289322A GB 206277 A GB206277 A GB 206277A
Authority
GB
United Kingdom
Prior art keywords
jaws
relating
disc
normally held
tool
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
GB2289322A
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.)
MCCORMICK DRILLING TOOL COMPAN
Original Assignee
MCCORMICK DRILLING TOOL COMPAN
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 MCCORMICK DRILLING TOOL COMPAN filed Critical MCCORMICK DRILLING TOOL COMPAN
Priority to GB2289322A priority Critical patent/GB206277A/en
Publication of GB206277A publication Critical patent/GB206277A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/12—Grappling tools, e.g. tongs or grabs

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

206,277. Withers, J. S., (McCormick Drilling Tool Co.). Aug. 22, 1922. Bore-hole apparatus. - A fishing tool for removing objects from wells comprises a pair of jaws 2 pivoted at 3 in a casing 1 and normally held open by spring detents 4. The jaws are adapted to be closed by a wedge member 5, slidably mounted in the body and normally held in its raised position by a spring detent 6. Secured to the member 5 is a rod 8 passing through the lower half 9 of the jar members and terminating in a disc 10. The upper half 11 of the jar members acts as a hammer which engages the disc 10 when the tool comes to rest and thus causes the member 5 to move downwards to close the jaws 2 on the object to be removed.
GB2289322A 1922-08-22 1922-08-22 Improvements in and relating to fishing tools for use in well boring Expired GB206277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2289322A GB206277A (en) 1922-08-22 1922-08-22 Improvements in and relating to fishing tools for use in well boring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2289322A GB206277A (en) 1922-08-22 1922-08-22 Improvements in and relating to fishing tools for use in well boring

Publications (1)

Publication Number Publication Date
GB206277A true GB206277A (en) 1923-11-08

Family

ID=10186744

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2289322A Expired GB206277A (en) 1922-08-22 1922-08-22 Improvements in and relating to fishing tools for use in well boring

Country Status (1)

Country Link
GB (1) GB206277A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012068674A1 (en) * 2010-11-22 2012-05-31 Atlas Copco Canada Inc. Fail safe locking overshot device
CN104632113A (en) * 2013-11-15 2015-05-20 中国石油天然气股份有限公司 Infinite-stage fracturing sand blasting sliding sleeve opening tool and operation method thereof
CN111075383A (en) * 2019-12-12 2020-04-28 中国二十冶集团有限公司 Hammerhead fishing device of punching cast-in-place pile machine and using method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012068674A1 (en) * 2010-11-22 2012-05-31 Atlas Copco Canada Inc. Fail safe locking overshot device
CN103228864A (en) * 2010-11-22 2013-07-31 阿特拉斯·科普柯加拿大有限公司 Fail safe locking overshot device
US8783745B2 (en) 2010-11-22 2014-07-22 Atlas Copco Canada Inc Fail safe locking overshot device
CN103228864B (en) * 2010-11-22 2016-06-29 阿特拉斯·科普柯加拿大有限公司 The overshot device of failure safe locking-type
CN104632113A (en) * 2013-11-15 2015-05-20 中国石油天然气股份有限公司 Infinite-stage fracturing sand blasting sliding sleeve opening tool and operation method thereof
CN104632113B (en) * 2013-11-15 2017-08-04 中国石油天然气股份有限公司 Infinite-stage fracturing sand blasting sliding sleeve opening tool and operation method thereof
CN111075383A (en) * 2019-12-12 2020-04-28 中国二十冶集团有限公司 Hammerhead fishing device of punching cast-in-place pile machine and using method thereof

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