GB8817907D0 - Reciprocating percussive device - Google Patents

Reciprocating percussive device

Info

Publication number
GB8817907D0
GB8817907D0 GB888817907A GB8817907A GB8817907D0 GB 8817907 D0 GB8817907 D0 GB 8817907D0 GB 888817907 A GB888817907 A GB 888817907A GB 8817907 A GB8817907 A GB 8817907A GB 8817907 D0 GB8817907 D0 GB 8817907D0
Authority
GB
United Kingdom
Prior art keywords
percussive device
reciprocating percussive
reciprocating
percussive
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.)
Pending
Application number
GB888817907A
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.)
BRITISH ENGINES Ltd
Boart International Ltd
Original Assignee
BRITISH ENGINES Ltd
Boart International 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 BRITISH ENGINES Ltd, Boart International Ltd filed Critical BRITISH ENGINES Ltd
Priority to GB888817907A priority Critical patent/GB8817907D0/en
Publication of GB8817907D0 publication Critical patent/GB8817907D0/en
Priority to GB8917175A priority patent/GB2221418B/en
Priority to ZA895716A priority patent/ZA895716B/en
Priority to CA000606783A priority patent/CA1325562C/en
Pending 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B25D17/084—Rotating chucks or sockets
    • 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
    • B25D9/26—Control devices for adjusting the stroke of the piston or the force or frequency of impact thereof
GB888817907A 1988-07-27 1988-07-27 Reciprocating percussive device Pending GB8817907D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB888817907A GB8817907D0 (en) 1988-07-27 1988-07-27 Reciprocating percussive device
GB8917175A GB2221418B (en) 1988-07-27 1989-07-27 Reciprocating percussive device
ZA895716A ZA895716B (en) 1988-07-27 1989-07-27 Reciprocating percussive device
CA000606783A CA1325562C (en) 1988-07-27 1989-07-27 Reciprocating percussive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888817907A GB8817907D0 (en) 1988-07-27 1988-07-27 Reciprocating percussive device

Publications (1)

Publication Number Publication Date
GB8817907D0 true GB8817907D0 (en) 1988-09-01

Family

ID=10641208

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888817907A Pending GB8817907D0 (en) 1988-07-27 1988-07-27 Reciprocating percussive device
GB8917175A Expired - Lifetime GB2221418B (en) 1988-07-27 1989-07-27 Reciprocating percussive device

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB8917175A Expired - Lifetime GB2221418B (en) 1988-07-27 1989-07-27 Reciprocating percussive device

Country Status (3)

Country Link
CA (1) CA1325562C (en)
GB (2) GB8817907D0 (en)
ZA (1) ZA895716B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI98401C (en) 1995-10-10 1997-06-10 Tamrock Oy A method for adjusting the drilling of a drilling machine and a rock drilling machine
US6293309B1 (en) * 1996-08-29 2001-09-25 Twinwood Engineering Ltd Control valve apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB261824A (en) * 1925-08-15 1926-11-15 George Henry Turton Rayner Improvements in or relating to percussive tools
SE319134B (en) * 1968-05-08 1969-12-22 Atlas Copco Ab
US3721095A (en) * 1971-08-23 1973-03-20 Bolt Associates Inc Controllable force method and system of driving piles
US3995700A (en) * 1975-10-14 1976-12-07 Gardner-Denver Company Hydraulic rock drill system

Also Published As

Publication number Publication date
CA1325562C (en) 1993-12-28
ZA895716B (en) 1990-04-25
GB2221418A (en) 1990-02-07
GB8917175D0 (en) 1989-09-13
GB2221418B (en) 1992-02-19

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