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
GB2459424A
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 IndividualfiledCriticalIndividual
Priority to GB2459424ApriorityCriticalpatent/GB246200A/en
Publication of GB246200ApublicationCriticalpatent/GB246200A/en
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
Abstract
246,200. Holman, J. L., and Holman, A. T. Oct. 16, 1924. Percussive tools; handles. -A ported ring 18 is arranged between the cylinder, chest, and handle. Fluid pressure is supplied to an annular recess 15 in the handle and passes through ports in the cylinder and joint ring, to an annular groove 20 in the valve chest 21 which comprises a cylindrical block bored to rethe valve 23.
GB2459424A1924-10-161924-10-16Improvements in or relating to fluid-operated reciprocating machine-tools
ExpiredGB246200A
(en)