FR525621A - Improvements to rock drills and similar tools operated by pressurized fluid - Google Patents

Improvements to rock drills and similar tools operated by pressurized fluid

Info

Publication number
FR525621A
FR525621A FR525621A FR525621DA FR525621A FR 525621 A FR525621 A FR 525621A FR 525621 A FR525621 A FR 525621A FR 525621D A FR525621D A FR 525621DA FR 525621 A FR525621 A FR 525621A
Authority
FR
France
Prior art keywords
pressurized fluid
similar tools
rock drills
tools operated
operated
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
FR525621A
Other languages
French (fr)
Inventor
George Henry Turton Rayner
Percy Rayner
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 FR525621A publication Critical patent/FR525621A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR525621A 1919-11-20 1920-10-06 Improvements to rock drills and similar tools operated by pressurized fluid Expired FR525621A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB525621X 1919-11-20

Publications (1)

Publication Number Publication Date
FR525621A true FR525621A (en) 1921-09-24

Family

ID=10464388

Family Applications (1)

Application Number Title Priority Date Filing Date
FR525621A Expired FR525621A (en) 1919-11-20 1920-10-06 Improvements to rock drills and similar tools operated by pressurized fluid

Country Status (1)

Country Link
FR (1) FR525621A (en)

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