GB496454A - Improvements in or relating to gas-pressure actuated percussive drills and the like - Google Patents

Improvements in or relating to gas-pressure actuated percussive drills and the like

Info

Publication number
GB496454A
GB496454A GB1042138A GB1042138A GB496454A GB 496454 A GB496454 A GB 496454A GB 1042138 A GB1042138 A GB 1042138A GB 1042138 A GB1042138 A GB 1042138A GB 496454 A GB496454 A GB 496454A
Authority
GB
United Kingdom
Prior art keywords
casing
drill
gas
pressure actuated
sheath
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
GB1042138A
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.)
ALBERT WALTER CHRISTIAN MANDEL
Original Assignee
ALBERT WALTER CHRISTIAN MANDEL
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 ALBERT WALTER CHRISTIAN MANDEL filed Critical ALBERT WALTER CHRISTIAN MANDEL
Priority to GB1042138A priority Critical patent/GB496454A/en
Publication of GB496454A publication Critical patent/GB496454A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B25D17/11—Arrangements of noise-damping means

Abstract

496,454. Silencing devices for percussive drills. MANDEL, A. W. C. April 5, 1938, No. 10421. [Class 124] [Also in Group XXVII] In a gas-pressure actuated percussive drill, a part or substantially the whole of the drill body 10 is enclosed by a silencing device in the form of a casing 18 made of pliable thick sheet rubber or like flexible material which is inflated by the gaseous exhaust, and one or more escape apertures 23 are formed in the casing at e position or positions remote from the exhaust openings 17 of the drill. The casing may be strengthened by textile wire, or wire gauze reinforce ment, and its lower part may be protected by a meta sheath 24 having a flared top 27 and holes 28 opposite the apertures 23. The upper end of the casing may be clipped, as at 22, to the drill body just below the inlet pipe 16, whilst its lower end may be thickened where it engages round the tool 11. This lower end may bear against the stirrup 12, and it may be secured by the same clip 26 that holds the sheath 24 in position.
GB1042138A 1938-04-05 1938-04-05 Improvements in or relating to gas-pressure actuated percussive drills and the like Expired GB496454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1042138A GB496454A (en) 1938-04-05 1938-04-05 Improvements in or relating to gas-pressure actuated percussive drills and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1042138A GB496454A (en) 1938-04-05 1938-04-05 Improvements in or relating to gas-pressure actuated percussive drills and the like

Publications (1)

Publication Number Publication Date
GB496454A true GB496454A (en) 1938-11-30

Family

ID=9967502

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1042138A Expired GB496454A (en) 1938-04-05 1938-04-05 Improvements in or relating to gas-pressure actuated percussive drills and the like

Country Status (1)

Country Link
GB (1) GB496454A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068646B (en) * 1959-11-12 HAUHINCO Maschinenfabrik G. Hausherr Jochums ix Co., Essen Device for spraying pressurized water onto the work site, arranged on a pick hammer
US2949975A (en) * 1957-10-17 1960-08-23 Walter A Plummer Pneumatic tool muffle
US3202239A (en) * 1963-06-10 1965-08-24 Clarke Ronald Albert William Acoustic shield for a tool powered by a gas-operated motor
US3225861A (en) * 1963-09-13 1965-12-28 Cons Mining & Smelting Co Sound suppressing device comprising elastic tubular sleeve for air actuated percussive type tools
US3263770A (en) * 1964-10-19 1966-08-02 Atlas Copco Ab Noise deadening means for percussive tools
US3379278A (en) * 1967-01-19 1968-04-23 Skowron Carl Muffler for pneumatically powered tools
US3667571A (en) * 1970-11-06 1972-06-06 Robert Fattelay Sound-insulating device for noisy apparatus
US3757891A (en) * 1972-07-28 1973-09-11 A P Krieger Tool silencing means
US3815705A (en) * 1972-12-04 1974-06-11 Thor Power Tool Co Muffler for a pneumatic percussion tool
US4239398A (en) * 1977-09-05 1980-12-16 Siemens Aktiengesellschaft Device for attenuating noise emitted to the environment by noise-generating aggregates having simultaneous dissipation of heat
WO2016133732A1 (en) * 2015-02-19 2016-08-25 Caterpillar Inc. Variable noise attenuating system for a power cell of a hydraulic hammer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068646B (en) * 1959-11-12 HAUHINCO Maschinenfabrik G. Hausherr Jochums ix Co., Essen Device for spraying pressurized water onto the work site, arranged on a pick hammer
US2949975A (en) * 1957-10-17 1960-08-23 Walter A Plummer Pneumatic tool muffle
US3202239A (en) * 1963-06-10 1965-08-24 Clarke Ronald Albert William Acoustic shield for a tool powered by a gas-operated motor
US3225861A (en) * 1963-09-13 1965-12-28 Cons Mining & Smelting Co Sound suppressing device comprising elastic tubular sleeve for air actuated percussive type tools
US3263770A (en) * 1964-10-19 1966-08-02 Atlas Copco Ab Noise deadening means for percussive tools
US3379278A (en) * 1967-01-19 1968-04-23 Skowron Carl Muffler for pneumatically powered tools
US3667571A (en) * 1970-11-06 1972-06-06 Robert Fattelay Sound-insulating device for noisy apparatus
US3757891A (en) * 1972-07-28 1973-09-11 A P Krieger Tool silencing means
US3815705A (en) * 1972-12-04 1974-06-11 Thor Power Tool Co Muffler for a pneumatic percussion tool
US4239398A (en) * 1977-09-05 1980-12-16 Siemens Aktiengesellschaft Device for attenuating noise emitted to the environment by noise-generating aggregates having simultaneous dissipation of heat
WO2016133732A1 (en) * 2015-02-19 2016-08-25 Caterpillar Inc. Variable noise attenuating system for a power cell of a hydraulic hammer

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