GB267867A - Improvements relating to percussive rock drills - Google Patents

Improvements relating to percussive rock drills

Info

Publication number
GB267867A
GB267867A GB94427A GB94427A GB267867A GB 267867 A GB267867 A GB 267867A GB 94427 A GB94427 A GB 94427A GB 94427 A GB94427 A GB 94427A GB 267867 A GB267867 A GB 267867A
Authority
GB
United Kingdom
Prior art keywords
improvements relating
rock drills
percussive rock
drill
bushings
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
GB94427A
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.)
Climax Rock Drill & Engineerin
Original Assignee
Climax Rock Drill & Engineerin
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 Climax Rock Drill & Engineerin filed Critical Climax Rock Drill & Engineerin
Priority to GB94427A priority Critical patent/GB267867A/en
Publication of GB267867A publication Critical patent/GB267867A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

267,867. Penberthy, E., and Climax Rock-drill & Engineering Works, Ltd. April 21, 1926. Valve chests and casings.-In a drill provided with a fluid-actuated valve arranged in a casing provided with end bushings 20, 21, projections 27, 33 on a division ring 28 and a cover plate 32 respectively engage shoulders on the bushings and retain them in position.
GB94427A 1926-04-21 1926-04-21 Improvements relating to percussive rock drills Expired GB267867A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB94427A GB267867A (en) 1926-04-21 1926-04-21 Improvements relating to percussive rock drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB94427A GB267867A (en) 1926-04-21 1926-04-21 Improvements relating to percussive rock drills

Publications (1)

Publication Number Publication Date
GB267867A true GB267867A (en) 1927-03-24

Family

ID=9713251

Family Applications (1)

Application Number Title Priority Date Filing Date
GB94427A Expired GB267867A (en) 1926-04-21 1926-04-21 Improvements relating to percussive rock drills

Country Status (1)

Country Link
GB (1) GB267867A (en)

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