GB478173A - Improvements in or relating to throttle valves for pneumatic percussive drills - Google Patents

Improvements in or relating to throttle valves for pneumatic percussive drills

Info

Publication number
GB478173A
GB478173A GB14555/37A GB1455537A GB478173A GB 478173 A GB478173 A GB 478173A GB 14555/37 A GB14555/37 A GB 14555/37A GB 1455537 A GB1455537 A GB 1455537A GB 478173 A GB478173 A GB 478173A
Authority
GB
United Kingdom
Prior art keywords
valve
relating
throttle valves
percussive drills
rotated
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
GB14555/37A
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of GB478173A publication Critical patent/GB478173A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/16—Valve arrangements therefor
    • B25D9/22—Valve arrangements therefor involving a rotary-type slide valve
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
    • E21B21/011—Dust eliminating or dust removing while drilling
    • E21B21/012—Dust eliminating or dust removing while drilling using exhaust air from the drilling motor for blowing off the dust at the borehole entrance

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

478,173. Percussive drills. INGERSOLL-RAND CO. May 25, 1937, No. 14555. Convention date, Aug. 12, 1936. [Class 124] A rotary plate throttle valve 53 has a series of ports 58 for alternately connecting the air supply to the distributing valve chamber 41 or the blowing passage 61 for removing detritus from the bore hole. The valve is rotated by a pin 63 having an eccentric spigot 66. In a modification the plate valve is rotated by a screw engaging teeth on its outer periphery.
GB14555/37A 1936-08-12 1937-05-25 Improvements in or relating to throttle valves for pneumatic percussive drills Expired GB478173A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US478173XA 1936-08-12 1936-08-12

Publications (1)

Publication Number Publication Date
GB478173A true GB478173A (en) 1938-01-13

Family

ID=21951142

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14555/37A Expired GB478173A (en) 1936-08-12 1937-05-25 Improvements in or relating to throttle valves for pneumatic percussive drills

Country Status (1)

Country Link
GB (1) GB478173A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1190419B (en) * 1956-05-15 1965-04-08 Atlas Copco Ab Rock drilling machine with a handle and control valves at the rear end and articulated feed device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1190419B (en) * 1956-05-15 1965-04-08 Atlas Copco Ab Rock drilling machine with a handle and control valves at the rear end and articulated feed device

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