GB218182A - Improvements in, or relating to, valve apparatus for rock drills and like fluid pressure operated tools - Google Patents

Improvements in, or relating to, valve apparatus for rock drills and like fluid pressure operated tools

Info

Publication number
GB218182A
GB218182A GB2908923A GB2908923A GB218182A GB 218182 A GB218182 A GB 218182A GB 2908923 A GB2908923 A GB 2908923A GB 2908923 A GB2908923 A GB 2908923A GB 218182 A GB218182 A GB 218182A
Authority
GB
United Kingdom
Prior art keywords
valve
ports
bush
fluid pressure
fluid
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
GB2908923A
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
Priority to GB2908923A priority Critical patent/GB218182A/en
Publication of GB218182A publication Critical patent/GB218182A/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
    • B25D9/20—Valve arrangements therefor involving a tubular-type slide valve

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

218,182. Rayner, G. H. T., and Rayner, P. Nov. 17, 1923. Fluid-actuated gears; valve chests.-In valve gears of the kind described in Specifications 192,277, 208,931, and 210,682, the valve h is housed in a transverse bush g provided with end plates y. The bush g has transverse and radial ports o - - f, w, v, and the plates exterior annular grooves 3, 4 which communicate with the ports o - - r through ports 2, x whereby fluid is supplied beneath the valve. When the piston moving to the right uncovers port c, the pressure to the left of the valve falls, and fluid pressure acting through portas v, w and compression through ports n, k reverse the valve. The bush and plates are retained in position by end covers 5 secured together by studs 7 engaging a central threaded sleeve 6, or by the means described in the Specification referred to above, or by other means.
GB2908923A 1923-11-17 1923-11-17 Improvements in, or relating to, valve apparatus for rock drills and like fluid pressure operated tools Expired GB218182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2908923A GB218182A (en) 1923-11-17 1923-11-17 Improvements in, or relating to, valve apparatus for rock drills and like fluid pressure operated tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2908923A GB218182A (en) 1923-11-17 1923-11-17 Improvements in, or relating to, valve apparatus for rock drills and like fluid pressure operated tools

Publications (1)

Publication Number Publication Date
GB218182A true GB218182A (en) 1924-07-03

Family

ID=10285964

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2908923A Expired GB218182A (en) 1923-11-17 1923-11-17 Improvements in, or relating to, valve apparatus for rock drills and like fluid pressure operated tools

Country Status (1)

Country Link
GB (1) GB218182A (en)

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