GB155812A - Improvements in and relating to the valve gear of pneumatic hammers - Google Patents

Improvements in and relating to the valve gear of pneumatic hammers

Info

Publication number
GB155812A
GB155812A GB31332/20A GB3133220A GB155812A GB 155812 A GB155812 A GB 155812A GB 31332/20 A GB31332/20 A GB 31332/20A GB 3133220 A GB3133220 A GB 3133220A GB 155812 A GB155812 A GB 155812A
Authority
GB
United Kingdom
Prior art keywords
relating
valve gear
pneumatic hammers
percussive
ges
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
GB31332/20A
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.)
Krupp Stahl AG
Fried Krupp AG
Original Assignee
Krupp Stahl AG
Fried Krupp AG
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 Krupp Stahl AG, Fried Krupp AG filed Critical Krupp Stahl AG
Publication of GB155812A publication Critical patent/GB155812A/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
    • B25D9/16—Valve arrangements therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

155,812. Krupp Akt.-Ges., F. Dec. 23, 1919, [Convention date]. Percussive hand tools.-A percussive hammer is provided with a lift valve E of lens shape arranged in two ported blocks D, D<1> carried by an extension of the handle a<6>. The supply enters at C, and the cylinder exhaust passes through piston-controlled ports a<3>, a<4>.
GB31332/20A 1919-12-23 1920-11-05 Improvements in and relating to the valve gear of pneumatic hammers Expired GB155812A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE155812X 1919-12-23

Publications (1)

Publication Number Publication Date
GB155812A true GB155812A (en) 1921-05-05

Family

ID=5677333

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31332/20A Expired GB155812A (en) 1919-12-23 1920-11-05 Improvements in and relating to the valve gear of pneumatic hammers

Country Status (1)

Country Link
GB (1) GB155812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050032A (en) * 1960-12-30 1962-08-21 Carey Machine & Supply Inc Percussion-type drill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050032A (en) * 1960-12-30 1962-08-21 Carey Machine & Supply Inc Percussion-type drill

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