GB262632A - Improved grab for recovering lost articles from bore holes - Google Patents

Improved grab for recovering lost articles from bore holes

Info

Publication number
GB262632A
GB262632A GB503626A GB503626A GB262632A GB 262632 A GB262632 A GB 262632A GB 503626 A GB503626 A GB 503626A GB 503626 A GB503626 A GB 503626A GB 262632 A GB262632 A GB 262632A
Authority
GB
United Kingdom
Prior art keywords
spud
recovering lost
lost articles
bore holes
offset
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
GB503626A
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.)
FRANK JAMES HINDERLITER
Original Assignee
FRANK JAMES HINDERLITER
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 FRANK JAMES HINDERLITER filed Critical FRANK JAMES HINDERLITER
Priority to GB503626A priority Critical patent/GB262632A/en
Publication of GB262632A publication Critical patent/GB262632A/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
    • E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot

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)
  • Manipulator (AREA)
  • Earth Drilling (AREA)

Abstract

262,632. Hinderliter, F. J. Feb. 22, 1926. Borehole apparatus.-A fisl ing tool for recovering lost articles from boreholes comprises an offset spud 16 extending below a gripping lever 20 so as to strike against the object 13 and bring it to an erect position. The lever 20 is pivoted at 22 in a recess in the shank. In operation, the device is lowered through the casing 10, 11 and the offset spud then swings clear of the casing and lies close to the wall of the hole. The gripping lever 20 is held away from the spud by a pin 26. When the tool strikes the object 13, the pin is fractured and the grip is closed by springs 23. The spud may be semi-circular in crosssection and provided with sexrated slips 17 sliding in inclined grooves to grip circular objects by a wedging action.
GB503626A 1926-02-22 1926-02-22 Improved grab for recovering lost articles from bore holes Expired GB262632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB503626A GB262632A (en) 1926-02-22 1926-02-22 Improved grab for recovering lost articles from bore holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB503626A GB262632A (en) 1926-02-22 1926-02-22 Improved grab for recovering lost articles from bore holes

Publications (1)

Publication Number Publication Date
GB262632A true GB262632A (en) 1926-12-16

Family

ID=9788530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB503626A Expired GB262632A (en) 1926-02-22 1926-02-22 Improved grab for recovering lost articles from bore holes

Country Status (1)

Country Link
GB (1) GB262632A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110541673A (en) * 2019-09-24 2019-12-06 重庆科技学院 Releasable multi-branch fishbone drilling connecting tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110541673A (en) * 2019-09-24 2019-12-06 重庆科技学院 Releasable multi-branch fishbone drilling connecting tool
CN110541673B (en) * 2019-09-24 2024-05-10 重庆科技学院 Releasable multi-branch fishbone drilling connection tool

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