GB934795A - Internal combustion percussion device - Google Patents

Internal combustion percussion device

Info

Publication number
GB934795A
GB934795A GB18771/60A GB1877160A GB934795A GB 934795 A GB934795 A GB 934795A GB 18771/60 A GB18771/60 A GB 18771/60A GB 1877160 A GB1877160 A GB 1877160A GB 934795 A GB934795 A GB 934795A
Authority
GB
United Kingdom
Prior art keywords
piston
pipe
fuel
air
enlargement
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
GB18771/60A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB934795A publication Critical patent/GB934795A/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
    • B25D9/10—Means for driving the impulse member comprising a built-in internal-combustion engine

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

934,795. Percussive tools. F. N. BARD. May 27, 1960 [June 10, 1959], No. 18771/60. Class 124. [Also in Group XXVII] The piston 13 of a power hammer has an enlargement 13b serving both to pump fuelair mixture to the cylinder inlet port 40 and to draw and expel cooling air through a port 60, the piston 13 also draining cooling air via a check valve 52 into a chamber 50 containing the piston return spring 18 and expelling it via a check valve 54 and pipe 56 on to a continuously acting sparking plug 17. A shield 57 hinders entry of dust into the chamber 50 past a tool 14 releasable by a catch 72. Oil-resistant rubber blocks 43 ... 45 separated by metal rings 47, 48 cushion the piston 13, the ring 47 having a bronze piston guide 46. Fuel from a tank 23 is drawn by combined suction and capillary action via a tube 24 and a metering valve 26 into an air inlet 27, the resulting fuel-air mixture being acted on by the enlargement 13a so as to be drawn into and expelled from a transfer duct 62 via reed valves 28, 42 having guard plates 28a, 42a. For starting, a hand pump 30 draws fuel-air mixture from the duct 62 via a pipe 33 and delivers it to the upper end of the cylinder via a pipe 34.
GB18771/60A 1959-06-10 1960-05-27 Internal combustion percussion device Expired GB934795A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US819484A US3046958A (en) 1959-06-10 1959-06-10 Internal combustion device

Publications (1)

Publication Number Publication Date
GB934795A true GB934795A (en) 1963-08-21

Family

ID=25228293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18771/60A Expired GB934795A (en) 1959-06-10 1960-05-27 Internal combustion percussion device

Country Status (2)

Country Link
US (1) US3046958A (en)
GB (1) GB934795A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148625A (en) * 1961-05-12 1964-09-15 John A Caloia Hydraulic engine
US3154154A (en) * 1962-02-05 1964-10-27 Atlas Copco Ab Percussion tools incorporating a combustion cylinder for driving a reciprocable hammer piston
US3917762A (en) * 1974-03-19 1975-11-04 Dale Herbrandson Carburetor and method of carburation
US4371351A (en) * 1978-02-09 1983-02-01 Gordon Tousey Marine stern drive cooler
US4369021A (en) * 1980-05-16 1983-01-18 Heintz Richard P Free-piston engine pump
FR2488344B1 (en) * 1980-08-05 1985-12-27 Renault HYDRAULIC GENERATOR WITH FREE PISTON MOTOR
US6135069A (en) * 1998-09-11 2000-10-24 Caterpillar Inc. Method for operation of a free piston engine
EP1872909A3 (en) * 2006-07-01 2010-05-05 Black & Decker, Inc. A tool holder connection system for a pavement breaker
JP2008012664A (en) 2006-07-01 2008-01-24 Black & Decker Inc Lubricant pump for hammer drill
JP2008012660A (en) * 2006-07-01 2008-01-24 Black & Decker Inc Pavement breaker
EP1872910B1 (en) 2006-07-01 2012-11-21 Black & Decker, Inc. Method for mesuring the amount of wear of a nose of beat piece in a hammer drill
US7726413B2 (en) * 2006-07-01 2010-06-01 Black & Decker Inc. Tool holder for a powered hammer
US7413026B2 (en) * 2006-07-01 2008-08-19 Black & Decker Inc. Lubricant system for powered hammer
CN103203263A (en) * 2013-04-12 2013-07-17 中化镇江焦化有限公司 Dust collector

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA523888A (en) * 1956-04-17 S. Weyandt Carl Working piston port for internal combustion percussion tool
NL70145C (en) *
FR466992A (en) * 1913-07-01 1914-05-29 Johann Bernhard Christian Sche Control for machine tools and working machines
US1230086A (en) * 1916-01-12 1917-06-12 Linden P Carhart Lawn-mower.
US1997071A (en) * 1931-07-11 1935-04-09 Gas Tool Patents Corp Internal combustion engine
US2083261A (en) * 1936-03-07 1937-06-08 Barco Mfg Co Gas hammer
US2089112A (en) * 1937-03-25 1937-08-03 Gas Tool Patents Corp Internal combustion hammer
US2396627A (en) * 1939-12-19 1946-03-12 Wohlmeyer Josef Percussive tool operated by internal-combustion engines
DE884928C (en) * 1943-09-12 1953-07-30 Klaus Junkers Internal combustion tool
US2779576A (en) * 1953-06-09 1957-01-29 Morgenroth Henri Charge forming device
US2739581A (en) * 1954-02-01 1956-03-27 Poulan Mfg Corp Engine speed governor
US2926637A (en) * 1956-02-15 1960-03-01 Syntron Co Portable internal combustion percussion tools
US2948122A (en) * 1956-05-03 1960-08-09 Raymond Int Inc Combustible fuel operated pile driving hammers and the like
US2875737A (en) * 1956-05-19 1959-03-03 Knorr Bremse Gmbh Tools operated by an internal combustion engine
US2923280A (en) * 1957-10-22 1960-02-02 Kagitani Takeo Portable power tool

Also Published As

Publication number Publication date
US3046958A (en) 1962-07-31

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