GB190827691A - Improvements in Compressed Air Hammers. - Google Patents

Improvements in Compressed Air Hammers.

Info

Publication number
GB190827691A
GB190827691A GB190827691DA GB190827691A GB 190827691 A GB190827691 A GB 190827691A GB 190827691D A GB190827691D A GB 190827691DA GB 190827691 A GB190827691 A GB 190827691A
Authority
GB
United Kingdom
Prior art keywords
piston
ports
compressed air
air hammers
communicates alternately
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
Inventor
Albert Francois
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB190827691A publication Critical patent/GB190827691A/en
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

27,691. Francois, A. Dec. 1, [date applied for under Section 91 of Patents &c. Act, 1907]. Rock drills.-The cylinder wall of a percussive rock drill or other tool is formed with two annular grooves c, e connected with the inlet b and outlet d. The admission groove c communicates alternately with two series of ports i,j in the piston leading to the cylinder ends. The exhaust groove communicates alternately with the ports i and with the space created behind the piston by the forward stroke. The rotating-gear shaft l is arranged in the interior k of the piston.
GB190827691D 1908-12-01 1908-12-19 Improvements in Compressed Air Hammers. Expired GB190827691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE190827691X 1908-12-01

Publications (1)

Publication Number Publication Date
GB190827691A true GB190827691A (en) 1909-06-10

Family

ID=32181026

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190827691D Expired GB190827691A (en) 1908-12-01 1908-12-19 Improvements in Compressed Air Hammers.

Country Status (1)

Country Link
GB (1) GB190827691A (en)

Similar Documents

Publication Publication Date Title
GB190827691A (en) Improvements in Compressed Air Hammers.
US682492A (en) Fluid-pressure hammer.
US837990A (en) Valve-gear for pneumatic rock-drills.
GB190906015A (en) Improvements in Valveless Engines.
GB1323966A (en) Percussion drilling apparatus
US1653080A (en) Tie-tamper piston
US528299A (en) Direct-acting engine
GB190008413A (en) A Portable Pneumatic Hammer.
GB190318541A (en) Improvements in the Valve Gear of Rock Boring and other Machines Driven by Compressed Air, Compressed Gases, Steam and like Mediums.
US312538A (en) Beook
GB191200905A (en) A TWo-cylinder Cutter or Percussion Tool having a Hammer Piston.
GB189918993A (en) Improvements in Rock Drills.
GB190816685A (en) Improvements in Valveless Engines, the Invention being applicable also to Percussive Machines such as Rock Drills.
GB190109911A (en) Improvements in or in connection with Direct Acting Engines Applicable for Coal Cutting, Mining, Drilling, Tunnelling, Stamping Ore, Pile Driving, and the like.
GB191012324A (en) Improvements in Valves for Percussive Rock Drills, Pneumatic Hammers, Pneumatic Hammer Drills, Direct Acting Pumps and Engines.
GB191017862A (en) Improvements in or relating to Pneumatic Hand Hammers or like Tools.
US993699A (en) Power-drill.
GB190713267A (en) Improvements in Fluid Pressure Percussive Rock Drills
GB190519535A (en) Improvements in Rock-drills and other Impact Tools.
GB190508107A (en) Improvements in Pneumatic Tools.
GB191012760A (en) Improvements in Valve Mechanism for Pneumatic Tool Engines.
GB190607419A (en) Improvements relating to Pneumatic Percussive Tools.
GB191213246A (en) Improvements in or relating to Rock Drills.
GB190417585A (en) Improvements in Throttle Valve Mechanism for Pneumatic Hammers.
GB190600934A (en) Improvements in or relating to Pneumatic Hammers and similar Tools.