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GB309750A - Improvement in valve for rock drills - Google Patents

Improvement in valve for rock drills

Info

Publication number
GB309750A
GB309750A GB1266728A GB1266728A GB309750A GB 309750 A GB309750 A GB 309750A GB 1266728 A GB1266728 A GB 1266728A GB 1266728 A GB1266728 A GB 1266728A GB 309750 A GB309750 A GB 309750A
Authority
GB
United Kingdom
Prior art keywords
improvement
valve
rock drills
drills
rock
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
GB1266728A
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
Priority to GB1266728A priority Critical patent/GB309750A/en
Publication of GB309750A publication Critical patent/GB309750A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2209/00—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D2209/007—Details of portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously having a tubular-slide valve, which is not coaxial with the piston

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
GB1266728A 1928-04-30 1928-04-30 Improvement in valve for rock drills Expired GB309750A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1266728A GB309750A (en) 1928-04-30 1928-04-30 Improvement in valve for rock drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1266728A GB309750A (en) 1928-04-30 1928-04-30 Improvement in valve for rock drills

Publications (1)

Publication Number Publication Date
GB309750A true GB309750A (en) 1929-04-18

Family

ID=10008904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1266728A Expired GB309750A (en) 1928-04-30 1928-04-30 Improvement in valve for rock drills

Country Status (1)

Country Link
GB (1) GB309750A (en)

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