GB293087A - Improvements in or relating to percussion tools for wave transmission apparatus - Google Patents

Improvements in or relating to percussion tools for wave transmission apparatus

Info

Publication number
GB293087A
GB293087A GB827627A GB827627A GB293087A GB 293087 A GB293087 A GB 293087A GB 827627 A GB827627 A GB 827627A GB 827627 A GB827627 A GB 827627A GB 293087 A GB293087 A GB 293087A
Authority
GB
United Kingdom
Prior art keywords
bicknell
liquid
relating
transmission apparatus
wave transmission
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
GB827627A
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.)
FRANCOIS CEMENTATION CO Ltd
Original Assignee
FRANCOIS CEMENTATION CO Ltd
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 FRANCOIS CEMENTATION CO Ltd filed Critical FRANCOIS CEMENTATION CO Ltd
Priority to GB827627A priority Critical patent/GB293087A/en
Publication of GB293087A publication Critical patent/GB293087A/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
    • B25D9/06—Means for driving the impulse member
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure

Abstract

293,087. Francois Cementation Co., Ltd., Degenhardt, W. R., Fraine, A. F. de, Bicknell, R. A. W., and Bicknell, A., (Representatives of Bicknell, R. H.). March 25, 1927. Percussive tools.-In a percussive tool operated by wave motion in a liquid the return of the striker E is effected by the resilience of an undivided mass of liquid in a single chamber D, which communicates with the working chamber C, to which the wave motion is transmitted, by an adjustable passage A<3>. A relief valve F is provided, which returns excess liquid to the working chamber. The enlarged head of the striker strikes a collar B<1> on a rod B which communicates the blow to the tool. Specification 293,088 is referred to.
GB827627A 1927-03-25 1927-03-25 Improvements in or relating to percussion tools for wave transmission apparatus Expired GB293087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB827627A GB293087A (en) 1927-03-25 1927-03-25 Improvements in or relating to percussion tools for wave transmission apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB827627A GB293087A (en) 1927-03-25 1927-03-25 Improvements in or relating to percussion tools for wave transmission apparatus

Publications (1)

Publication Number Publication Date
GB293087A true GB293087A (en) 1928-06-25

Family

ID=9849383

Family Applications (1)

Application Number Title Priority Date Filing Date
GB827627A Expired GB293087A (en) 1927-03-25 1927-03-25 Improvements in or relating to percussion tools for wave transmission apparatus

Country Status (1)

Country Link
GB (1) GB293087A (en)

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