GB2076724A - Pneumatic percussion machine - Google Patents

Pneumatic percussion machine

Info

Publication number
GB2076724A
GB2076724A GB8116468A GB8116468A GB2076724A GB 2076724 A GB2076724 A GB 2076724A GB 8116468 A GB8116468 A GB 8116468A GB 8116468 A GB8116468 A GB 8116468A GB 2076724 A GB2076724 A GB 2076724A
Authority
GB
United Kingdom
Prior art keywords
feeder
lentil
casing
disk
barrel
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.)
Withdrawn
Application number
GB8116468A
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.)
VNI PK I MEKH
Original Assignee
VNI PK I MEKH
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 VNI PK I MEKH filed Critical VNI PK I MEKH
Publication of GB2076724A publication Critical patent/GB2076724A/en
Withdrawn legal-status Critical Current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

Abstract

A pneumatic percussion machine comprises a casing (1) provided with a grip (2), a barrel (3) with a feeder (10) fixed to it and with a striker placed inside it, the barrel being movably mounted inside the casing in guides (4), and a packing unit of the feeder (10). The packing unit of the feeder (10) comprises a lentil-shaped disk (11) and a packing element (12), the lentil-shaped disk resting by its spherical surface on the butt-end (5) of the casing (1) provided with a corresponding spherical surface (15). The packing element (12) is placed between the lentil-shaped disk (11) and the butt-end of the grip (2). The lentil-shaped disk (11) is provided with a central opening (13) through which passes the feeder (10). Such a construction of the packing unit of the feeder allows to exclude the possibility of seizure of the feeder in the opening of the disk and of the barrel in the casing in case of eventual misalignement between the feeder and the central opening of the disk.
GB8116468A 1979-11-30 1979-11-30 Pneumatic percussion machine Withdrawn GB2076724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SU1979/000124 WO1981001590A1 (en) 1979-11-30 1979-11-30 Pneumatic percussion machine

Publications (1)

Publication Number Publication Date
GB2076724A true GB2076724A (en) 1981-12-09

Family

ID=21616571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8116468A Withdrawn GB2076724A (en) 1979-11-30 1979-11-30 Pneumatic percussion machine

Country Status (4)

Country Link
JP (1) JPS56501638A (en)
DE (1) DE2953908A1 (en)
GB (1) GB2076724A (en)
WO (1) WO1981001590A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3379273A (en) * 1963-11-12 1968-04-23 Bolt Associates Inc Powerful sound impulse generation methods and apparatus
US3456742A (en) * 1967-07-05 1969-07-22 Sonomotive Eng Ltd Percussive tools and machines
US3559753A (en) * 1969-05-21 1971-02-02 Ilmar Meri Percussion tool
BE758943A (en) * 1969-11-14 1971-04-16 Bolt Associates Inc METHOD AND DEVICE FOR MONITORING THE ACTION OF A SUBMERSIBLE SEISMIC SOURCE
SU381743A1 (en) * 1970-11-02 1977-11-25 Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Механизированного И Ручного Строительно-Монтажного Инструмента, Отделочных Машин И Вибраторов Percussive machine
JPS549561B2 (en) * 1973-06-19 1979-04-25
US3997021A (en) * 1975-05-16 1976-12-14 Bolt Associates, Inc. Pressurized gas discharging apparatus for use as a down-bore seismic impulse source

Also Published As

Publication number Publication date
DE2953908A1 (en) 1982-02-04
JPS56501638A (en) 1981-11-12
WO1981001590A1 (en) 1981-06-11

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)