GB170009A - Improvements in pneumatic tools - Google Patents

Improvements in pneumatic tools

Info

Publication number
GB170009A
GB170009A GB26772/21A GB2677221A GB170009A GB 170009 A GB170009 A GB 170009A GB 26772/21 A GB26772/21 A GB 26772/21A GB 2677221 A GB2677221 A GB 2677221A GB 170009 A GB170009 A GB 170009A
Authority
GB
United Kingdom
Prior art keywords
nut
piston
duct
fluid
operated
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
GB26772/21A
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
Publication of GB170009A publication Critical patent/GB170009A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device

Abstract

170,009. D³sterloh, G. Oct. 11, 1920, [Convention date]. Percussive drills.-The grooved twist-bar g attached to the piston e of a pneumatically-operated drill or the like engages a nut h' formed with a coned face adapted to be pressed into engagement with a part i of the casing during the return stroke of the piston by the passage of driving fluid through a duct p. The piston is thus made to turn, and with it the sleeve l carrying the tool. On the working stroke the nut h<1> is pressed away from the part i by fluid transmitted through a duct o; the nut h<1> then turns freely. The nut h<1> may be operated by a spring instead of by fluid pressure.
GB26772/21A 1920-10-11 1921-10-10 Improvements in pneumatic tools Expired GB170009A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE170009X 1920-10-11

Publications (1)

Publication Number Publication Date
GB170009A true GB170009A (en) 1922-10-12

Family

ID=5688115

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26772/21A Expired GB170009A (en) 1920-10-11 1921-10-10 Improvements in pneumatic tools

Country Status (1)

Country Link
GB (1) GB170009A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE36166E (en) * 1992-07-17 1999-03-30 Smith International, Inc. Air percussion drilling assembly for directional drilling applications
USRE36848E (en) * 1992-07-17 2000-09-05 Smith International, Inc. Air percussion drilling assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE36166E (en) * 1992-07-17 1999-03-30 Smith International, Inc. Air percussion drilling assembly for directional drilling applications
USRE36848E (en) * 1992-07-17 2000-09-05 Smith International, Inc. Air percussion drilling assembly

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