GB226384A - Improvements in pneumatically actuated tools - Google Patents

Improvements in pneumatically actuated tools

Info

Publication number
GB226384A
GB226384A GB169224A GB169224A GB226384A GB 226384 A GB226384 A GB 226384A GB 169224 A GB169224 A GB 169224A GB 169224 A GB169224 A GB 169224A GB 226384 A GB226384 A GB 226384A
Authority
GB
United Kingdom
Prior art keywords
air
chamber
valve
piston
blow
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
GB169224A
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.)
NON EXHAUST COMPRESSED AIR MAC
Original Assignee
NON EXHAUST COMPRESSED AIR MAC
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 NON EXHAUST COMPRESSED AIR MAC filed Critical NON EXHAUST COMPRESSED AIR MAC
Priority to GB169224A priority Critical patent/GB226384A/en
Publication of GB226384A publication Critical patent/GB226384A/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
    • B25D9/08—Means for driving the impulse member comprising a built-in air compressor, i.e. the tool being driven by air pressure

Abstract

226,384. Dehn, F. B., (Non-Exhaust Compressed Air Machinery Co.). Jan. 21, 1924. Percussive drills.-The front and rear ends a, b of the hammer cylinder of a pneumatic tool are connected by separate pipes I, H, with the rear and front ends e, d respectively of a pulsating cylinder D provided with a piston E reciprocated by any suitable means, such as a direct-acting two-stroke internal-combustion motor U with a fly-wheel z<3>. Leakage of air from the system is made up by means of a valve M opening to the chamber e and by an adjustable passage p, adapted, near the end of the piston stroke, to connect the space d with the pipe I. Cushioning in the chamber a, and therefore the force of the blow, is varied by means of a handoperated valve j<1>, adapted to close more or less the port j, and at the same time to release air under pressure through ports i<1>, which air acts to blow away dust. The relative sizes of the two cylinders are as indicated in Fig. 1.
GB169224A 1924-01-21 1924-01-21 Improvements in pneumatically actuated tools Expired GB226384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB169224A GB226384A (en) 1924-01-21 1924-01-21 Improvements in pneumatically actuated tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB169224A GB226384A (en) 1924-01-21 1924-01-21 Improvements in pneumatically actuated tools

Publications (1)

Publication Number Publication Date
GB226384A true GB226384A (en) 1924-12-24

Family

ID=9726342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB169224A Expired GB226384A (en) 1924-01-21 1924-01-21 Improvements in pneumatically actuated tools

Country Status (1)

Country Link
GB (1) GB226384A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113565431A (en) * 2021-08-27 2021-10-29 中国铁建重工集团股份有限公司 Pressure control method of air compressor for pneumatic down-the-hole hammer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113565431A (en) * 2021-08-27 2021-10-29 中国铁建重工集团股份有限公司 Pressure control method of air compressor for pneumatic down-the-hole hammer

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