FR509165A - Perfectionnements aux soupapes à gorge pour outils pneumatiques à percussion et analogues - Google Patents

Perfectionnements aux soupapes à gorge pour outils pneumatiques à percussion et analogues

Info

Publication number
FR509165A
FR509165A FR509165A FR509165DA FR509165A FR 509165 A FR509165 A FR 509165A FR 509165 A FR509165 A FR 509165A FR 509165D A FR509165D A FR 509165DA FR 509165 A FR509165 A FR 509165A
Authority
FR
France
Prior art keywords
refinements
grooved
valves
pneumatic impact
impact tools
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
FR509165A
Other languages
English (en)
Inventor
Reginald Wellesley Wilson
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.)
Sir WG Armstrong Whitworth and Co Ltd
Original Assignee
Sir WG Armstrong Whitworth and Co Ltd
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 Sir WG Armstrong Whitworth and Co Ltd filed Critical Sir WG Armstrong Whitworth and Co Ltd
Application granted granted Critical
Publication of FR509165A publication Critical patent/FR509165A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR509165A 1918-12-09 1920-01-27 Perfectionnements aux soupapes à gorge pour outils pneumatiques à percussion et analogues Expired FR509165A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB509165X 1918-12-09

Publications (1)

Publication Number Publication Date
FR509165A true FR509165A (fr) 1920-11-03

Family

ID=10457902

Family Applications (1)

Application Number Title Priority Date Filing Date
FR509165A Expired FR509165A (fr) 1918-12-09 1920-01-27 Perfectionnements aux soupapes à gorge pour outils pneumatiques à percussion et analogues

Country Status (1)

Country Link
FR (1) FR509165A (fr)

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