[go: up one dir, main page]

GB190308631A - Improvements in Pneumatic Percussive Tools - Google Patents

Improvements in Pneumatic Percussive Tools

Info

Publication number
GB190308631A
GB190308631A GB190308631DA GB190308631A GB 190308631 A GB190308631 A GB 190308631A GB 190308631D A GB190308631D A GB 190308631DA GB 190308631 A GB190308631 A GB 190308631A
Authority
GB
United Kingdom
Prior art keywords
piston
ports
diameters
recess
passes
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
John Edward Dexter
William Harris
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 GB190308631A publication Critical patent/GB190308631A/en
Expired legal-status Critical Current

Links

Landscapes

  • Percussive Tools And Related Accessories (AREA)

Abstract

8631. Dexter, J. E., and Harris, W. April 16. Percussive hand tools.-The piston of a valveless pneumatic percussive tool is of three diameters and the cylinder of two diameters and recessed at three points 4, 5, 6 and grooved longitudinally at the rear of the recess 6. Air passes through the external grooves 13, which are closed in by the handle socket, and the ports 14 to the front annular face of the part 10 of the piston, and always forces the same backwards. When the part 10 passes the recess 6, air passes through the grooves 15 to the back of the piston. When the part 10 uncovers the ports 16 during its forward stroke, the air exhausts through the passages 17, the ports 18, the annular space surrounding the part 12 of the piston, and the ports 19. Holes 20 prevent too early cushioning of the piston.
GB190308631D 1903-04-16 1903-04-16 Improvements in Pneumatic Percussive Tools Expired GB190308631A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190308631T 1903-04-16

Publications (1)

Publication Number Publication Date
GB190308631A true GB190308631A (en) 1904-02-25

Family

ID=32253285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190308631D Expired GB190308631A (en) 1903-04-16 1903-04-16 Improvements in Pneumatic Percussive Tools

Country Status (1)

Country Link
GB (1) GB190308631A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050525A (en) * 1976-09-02 1977-09-27 Kennametal Inc. Down-the-hole hammer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050525A (en) * 1976-09-02 1977-09-27 Kennametal Inc. Down-the-hole hammer

Similar Documents

Publication Publication Date Title
GB190308631A (en) Improvements in Pneumatic Percussive Tools
US1126096A (en) Pneumatic hammer.
US1429786A (en) Rock drill
US1355175A (en) Percussive tool
US1653080A (en) Tie-tamper piston
US897958A (en) Pneumatic hammer.
GB329921A (en)
US805633A (en) Pneumatic tool.
US912234A (en) Pneumatic hammer.
GB190307305A (en) Improvements in Pneumatic Tools for Caulking, Rivetting, Dressing and like Operations.
GB190823519A (en) Improvements in Rock Drills and other Pneumatically Operated, Tools
GB190722863A (en) Improvements in Pneumatic Rock-drills.
GB190318955A (en) Improvements in Rock Drills of the Percussion Type.
US1858059A (en) Fluid operated tool
GB190328157A (en) Improvements in Pneumatic Hammers.
US924531A (en) Pneumatic hammer.
GB190226337A (en) Improvements in Pneumatic Hammers.
US929111A (en) Fluid-operated tool.
GB190422642A (en) Improvements relating to Pneumatic Hammers and similar Tools
GB190400623A (en) An Improved Percussive Hand Tool Actuated by Fluid Pressure.
GB190309006A (en) Improvements in Pneumatic Tools
GB190219648A (en) Improvements in Pneumatically Operated Percussive Tools
GB138304A (en) Improvements in percussive rock drills and like fluid pressure operated tools
GB190813758A (en) Improvements in Fluid-actuated Rock-drilling and other Percussive Machines.
US1344170A (en) Compound pneumatic impact-tool