FR505840A - Perfectionnements aux frappeurs pneumatiques - Google Patents

Perfectionnements aux frappeurs pneumatiques

Info

Publication number
FR505840A
FR505840A FR505840A FR505840DA FR505840A FR 505840 A FR505840 A FR 505840A FR 505840 A FR505840 A FR 505840A FR 505840D A FR505840D A FR 505840DA FR 505840 A FR505840 A FR 505840A
Authority
FR
France
Prior art keywords
air
batting skills
batting
skills
air batting
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
FR505840A
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.)
Dujardin & Cie
Original Assignee
Dujardin & Cie
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 Dujardin & Cie filed Critical Dujardin & Cie
Application granted granted Critical
Publication of FR505840A publication Critical patent/FR505840A/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
    • B25D9/18—Valve arrangements therefor involving a piston-type slide valve

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR505840A 1919-11-07 1919-11-07 Perfectionnements aux frappeurs pneumatiques Expired FR505840A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR505840T 1919-11-07

Publications (1)

Publication Number Publication Date
FR505840A true FR505840A (fr) 1920-08-07

Family

ID=8908731

Family Applications (1)

Application Number Title Priority Date Filing Date
FR505840A Expired FR505840A (fr) 1919-11-07 1919-11-07 Perfectionnements aux frappeurs pneumatiques

Country Status (1)

Country Link
FR (1) FR505840A (fr)

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