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GB288241A - Improvement in distributing valves for rock drills - Google Patents

Improvement in distributing valves for rock drills

Info

Publication number
GB288241A
GB288241A GB3843/28A GB384328A GB288241A GB 288241 A GB288241 A GB 288241A GB 3843/28 A GB3843/28 A GB 3843/28A GB 384328 A GB384328 A GB 384328A GB 288241 A GB288241 A GB 288241A
Authority
GB
United Kingdom
Prior art keywords
improvement
rock drills
distributing valves
distributing
valves
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
GB3843/28A
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 GB288241A publication Critical patent/GB288241A/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)
GB3843/28A 1927-04-06 1928-02-07 Improvement in distributing valves for rock drills Expired GB288241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US288241XA 1927-04-06 1927-04-06

Publications (1)

Publication Number Publication Date
GB288241A true GB288241A (en) 1929-04-25

Family

ID=21845658

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3843/28A Expired GB288241A (en) 1927-04-06 1928-02-07 Improvement in distributing valves for rock drills

Country Status (1)

Country Link
GB (1) GB288241A (en)

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