FR662925A - Distributeur pour perforatrices de roche - Google Patents

Distributeur pour perforatrices de roche

Info

Publication number
FR662925A
FR662925A FR662925DA FR662925A FR 662925 A FR662925 A FR 662925A FR 662925D A FR662925D A FR 662925DA FR 662925 A FR662925 A FR 662925A
Authority
FR
France
Prior art keywords
distributor
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
Other languages
English (en)
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
Application granted granted Critical
Publication of FR662925A publication Critical patent/FR662925A/fr
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
    • B25D9/24—Valve arrangements therefor involving a rocking-plate type valve

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR662925D 1928-10-25 1928-10-25 Distributeur pour perforatrices de roche Expired FR662925A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR662925T 1928-10-25

Publications (1)

Publication Number Publication Date
FR662925A true FR662925A (fr) 1929-08-13

Family

ID=9011759

Family Applications (1)

Application Number Title Priority Date Filing Date
FR662925D Expired FR662925A (fr) 1928-10-25 1928-10-25 Distributeur pour perforatrices de roche

Country Status (1)

Country Link
FR (1) FR662925A (fr)

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