GB191018165A - Improvements relating to Rock Drills, and other Percussive Tools. - Google Patents

Improvements relating to Rock Drills, and other Percussive Tools.

Info

Publication number
GB191018165A
GB191018165A GB191018165DA GB191018165A GB 191018165 A GB191018165 A GB 191018165A GB 191018165D A GB191018165D A GB 191018165DA GB 191018165 A GB191018165 A GB 191018165A
Authority
GB
United Kingdom
Prior art keywords
valve
passages
fluid
improvements relating
rock drills
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
Inventor
George Henry Rayner
Cecil Walton
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
Application granted granted Critical
Publication of GB191018165A publication Critical patent/GB191018165A/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
    • B25D9/18—Valve arrangements therefor involving a piston-type slide valve

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Motors (AREA)

Abstract

18,165. Rayner, G. H., and Walton, C. July 30. Fluid-actuated gears. - Relates to improvements in the valve and the motive-fluid passages and ports described in Specification 19,384/06. In the present invention, the valve c consists of a simple semicylindrical slide valve without end pistons actuated by fluid pressure, and the ends of the valve chamber b comprise blocks l having passages communicating with the extra passages i, k described in the above-mentioned Specification. The extra passages i, k may or may not have the small ports m communicating with the main passages f, g, and the exhaust h does not open directly to the cylinder, exhaust holes n, o, opening to the atmosphere, being provided near the ends of the cylinder. The leakage to the ends of the valve chamber causes the valve to operate, or passages p through the ends of the valve may be provided.
GB191018165D 1910-07-30 1910-07-30 Improvements relating to Rock Drills, and other Percussive Tools. Expired GB191018165A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191018165T 1910-07-30

Publications (1)

Publication Number Publication Date
GB191018165A true GB191018165A (en) 1911-07-20

Family

ID=32563368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191018165D Expired GB191018165A (en) 1910-07-30 1910-07-30 Improvements relating to Rock Drills, and other Percussive Tools.

Country Status (1)

Country Link
GB (1) GB191018165A (en)

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