GB347564A - Improvements in, and relating to, rock drills and like fluid pressure operated machines - Google Patents

Improvements in, and relating to, rock drills and like fluid pressure operated machines

Info

Publication number
GB347564A
GB347564A GB2733630A GB2733630A GB347564A GB 347564 A GB347564 A GB 347564A GB 2733630 A GB2733630 A GB 2733630A GB 2733630 A GB2733630 A GB 2733630A GB 347564 A GB347564 A GB 347564A
Authority
GB
United Kingdom
Prior art keywords
valve
exhaust
auxiliary
rock drills
relating
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
GB2733630A
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.)
PERCY THORPE RAYNER
Original Assignee
PERCY THORPE RAYNER
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 PERCY THORPE RAYNER filed Critical PERCY THORPE RAYNER
Priority to GB2733630A priority Critical patent/GB347564A/en
Publication of GB347564A publication Critical patent/GB347564A/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
    • B25D9/18—Valve arrangements therefor involving a piston-type slide valve

Abstract

347,564. Valve-gear for percussive tools. RAYNER, G. H. T., 14, Broomhall Road, and RAYNER, P. T., 37, Ashland Road, both in Sheffield. Sept. 12, 1930, No. 27336. [Class 122 (ii).] In rock drills and like percussive tools of the kind having a fluidactuated, auxiliaryexhaust valve, the main exhaust being controlled by the piston and the inlet by a separate valve, the auxiliary - exhaust chamber 10 is located between the main-valve chamber 9 containing an oscillating, flap-valve 12 and the cylinder 2, and is provided with two auxiliary-exhaust valves 15, 16 which are arranged in the path of the fluid passing from the inlet ports 13, 14 to the cylinder inlet and auxiliary-exhaust ports 7, 8. The valves 15, 16 work in contact, engage seats 17, 18, and are operated by the release.
GB2733630A 1930-09-12 1930-09-12 Improvements in, and relating to, rock drills and like fluid pressure operated machines Expired GB347564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2733630A GB347564A (en) 1930-09-12 1930-09-12 Improvements in, and relating to, rock drills and like fluid pressure operated machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2733630A GB347564A (en) 1930-09-12 1930-09-12 Improvements in, and relating to, rock drills and like fluid pressure operated machines

Publications (1)

Publication Number Publication Date
GB347564A true GB347564A (en) 1931-04-30

Family

ID=10257908

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2733630A Expired GB347564A (en) 1930-09-12 1930-09-12 Improvements in, and relating to, rock drills and like fluid pressure operated machines

Country Status (1)

Country Link
GB (1) GB347564A (en)

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