GB190327578A - An Improved Percussive Hand Tool - Google Patents

An Improved Percussive Hand Tool

Info

Publication number
GB190327578A
GB190327578A GB190327578DA GB190327578A GB 190327578 A GB190327578 A GB 190327578A GB 190327578D A GB190327578D A GB 190327578DA GB 190327578 A GB190327578 A GB 190327578A
Authority
GB
United Kingdom
Prior art keywords
valve
ports
port
piston
cylinder
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
Henry Potter
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 GB190327578A publication Critical patent/GB190327578A/en
Expired legal-status Critical Current

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  • Percussive Tools And Related Accessories (AREA)

Abstract

27,578. Potter, H. Dec. 16. Percussive hand tools.-The piston 8 of a pneumatic hammer for riveting &c. works in the tubular valve 9, which, along with the cylinder proper, is provided with longitudinal ports. The valve may have wings 10, 11, of different areas, working in a bushing 12 in the enlarged parts 4, 5 of the half cylinders 1, 2 which are locked together by a hinged sleeve 3 and a taper pin 7. The cylinder ports 24, 28 and the port 32 from the smaller wing chamber 16 lead to the air-supply duct 19, and the cylinder ports 33, 35 to the atmosphere. Near the end of the out-stroke, the piston uncovers the port 32<a> and live air passes into the larger wing chamber 17 and moves the valve. The port 37 now coincide, with one 38 leading to the atmosphere, and when the piston necking 38<a> connects the ports 37, 32<a>, the valve returns to its original position.
GB190327578D 1903-12-16 1903-12-16 An Improved Percussive Hand Tool Expired GB190327578A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190327578T 1903-12-16

Publications (1)

Publication Number Publication Date
GB190327578A true GB190327578A (en) 1904-12-15

Family

ID=32254468

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190327578D Expired GB190327578A (en) 1903-12-16 1903-12-16 An Improved Percussive Hand Tool

Country Status (1)

Country Link
GB (1) GB190327578A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2481864A (en) * 2010-07-10 2012-01-11 Alexander Ross Valve to reduce recoil in a hand held percussive tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2481864A (en) * 2010-07-10 2012-01-11 Alexander Ross Valve to reduce recoil in a hand held percussive tool

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