DE178837C - - Google Patents

Info

Publication number
DE178837C
DE178837C DENDAT178837D DE178837DA DE178837C DE 178837 C DE178837 C DE 178837C DE NDAT178837 D DENDAT178837 D DE NDAT178837D DE 178837D A DE178837D A DE 178837DA DE 178837 C DE178837 C DE 178837C
Authority
DE
Germany
Prior art keywords
control
valve
piston
pressure medium
control piston
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.)
Active
Application number
DENDAT178837D
Other languages
German (de)
English (en)
Publication of DE178837C publication Critical patent/DE178837C/de
Active 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)
  • Actuator (AREA)
DENDAT178837D Active DE178837C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE178837C true DE178837C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=443198

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT178837D Active DE178837C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE178837C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4237945A (en) * 1978-06-16 1980-12-09 Peng Ting Fu Apparatus and method for abrading pencil lead

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4237945A (en) * 1978-06-16 1980-12-09 Peng Ting Fu Apparatus and method for abrading pencil lead

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