GB914055A - Impact tool - Google Patents

Impact tool

Info

Publication number
GB914055A
GB914055A GB12260/59A GB1226059A GB914055A GB 914055 A GB914055 A GB 914055A GB 12260/59 A GB12260/59 A GB 12260/59A GB 1226059 A GB1226059 A GB 1226059A GB 914055 A GB914055 A GB 914055A
Authority
GB
United Kingdom
Prior art keywords
piston
cylinder
fuel
trigger
intermediate position
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
GB12260/59A
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.)
Omark Industries Inc
Original Assignee
Omark Industries Inc
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 Omark Industries Inc filed Critical Omark Industries Inc
Publication of GB914055A publication Critical patent/GB914055A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0085—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for explosive-powered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/12—Drivers with explosion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B71/00—Free-piston engines; Engines without rotary main shaft
    • F02B71/04—Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

914,055. Percussion tools. OMARK INDUSTRIES Inc. April 10, 1959 [April 11, 1958], No. 12260/59. Class 124. An impact tool comprises a piston reciprocable in a cylinder, means urging the piston to one end of the cylinder, a second means to move the piston from the one end to an intermediate position in the cylinder, a lock for the second means, a manual control to unlock the second means, means to introduce a charge of fuel and air during movement of the piston to the intermediate position, and means to fire the charge to produce an impact. As shown, a cylinder 22 has a piston 28 sliding therein and urged towards one end by a spring 36 surrounding a piston-rod 32 which carries an extension 46 supported in a guide 26. A piston 56 urged towards the piston 28 by a spring 62 is held in a retracted position by a latch 76 engaging a locking member 74 which may be released by a trigger 82. Movement of the trigger 82 causes fuel from a pump to be ejected on to a valve 202 and a supporting spider 194; at the same time the piston 56 moves the piston 28 to an intermediate position, the suction created by this movement opening the valve 202 and admitting a mixture of fuel and air into the chamber formed between the piston 28 and the end of the cylinder. A spark plug 252, energized by a contact operated by a cam follower 238, ignites the mixture. The explosion drives the piston 28 forwards to produce a blow and the piston 56 backwards where it is again held by the latch. The amount of fuel ejected may be adjusted by a screw 184 and knurled nut 180 altering the position of the trigger and so the travel of the pump plunger. The tool may be used to drive nails or lop branches off trees.
GB12260/59A 1958-04-11 1959-04-10 Impact tool Expired GB914055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US727856A US2898893A (en) 1958-04-11 1958-04-11 Impact tool

Publications (1)

Publication Number Publication Date
GB914055A true GB914055A (en) 1962-12-28

Family

ID=24924358

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12260/59A Expired GB914055A (en) 1958-04-11 1959-04-10 Impact tool

Country Status (3)

Country Link
US (1) US2898893A (en)
DE (1) DE1265679B (en)
GB (1) GB914055A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398587A2 (en) * 1977-07-28 1979-02-23 Liesse Maurice Nail driver actuated by gas explosion - has valves operated in sequence to supply correct mixture of air and gas
EP0123716A2 (en) * 1983-05-02 1984-11-07 Signode Corporation Combustion gas-powered fastener driving tool

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042008A (en) * 1958-10-18 1962-07-03 Liesse Maurice Striking machine, chiefly nailing, clamping and the like percussion machines
US3036307A (en) * 1960-02-25 1962-05-29 Olin Mathieson Seal for power tool
US3213607A (en) * 1963-07-03 1965-10-26 Omark Industries Inc Impact tool
US3320740A (en) * 1965-07-02 1967-05-23 Walker Mfg Co Press
US3278084A (en) * 1965-08-06 1966-10-11 Omark Industries Inc Impact tool
US3576103A (en) * 1968-04-04 1971-04-27 Plessey Co Ltd Firing of a fuel or a monofuel
US3666027A (en) * 1970-08-21 1972-05-30 Black & Decker Mfg Co Handle and trigger construction
US3734459A (en) * 1970-08-21 1973-05-22 Black & Decker Mfg Co Handle and trigger construction
US3850359A (en) * 1973-05-11 1974-11-26 Fastener Corp Fastener driving tool
US3967771A (en) * 1974-12-16 1976-07-06 Smith James E Self-contained impact tool
US4200213A (en) * 1977-08-10 1980-04-29 Agence Nationale De Valorisation De La Recherche (Anvar) Percussion apparatus
US4218888A (en) * 1979-02-12 1980-08-26 Jayne Michael E Impact device
IN157475B (en) * 1981-01-22 1986-04-05 Signode Corp
AU572133B2 (en) * 1983-04-18 1988-05-05 Veldman, A.G.G. Percussive tool with improved combustion chamber
NZ203923A (en) * 1983-04-18 1986-10-08 A G G Veldman Explosion actuated device for operating a range of hand tools
US4645015A (en) * 1985-09-12 1987-02-24 Mitchell William C Powered impact instrument
US5191861A (en) * 1991-07-12 1993-03-09 Stanley-Bostitch, Inc. Internal combustion actuated portable tool
SE509548C2 (en) * 1997-06-25 1999-02-08 Electrolux Ab Device for hand operated machine
US7707920B2 (en) 2003-12-31 2010-05-04 Sd3, Llc Table saws with safety systems
PL353682A1 (en) * 2001-05-04 2002-11-18 Illinois Tool Works Variable-volume valve for a combustion gas feed device
DE10260702B4 (en) * 2002-12-23 2014-01-30 Hilti Aktiengesellschaft Internal combustion setting device
DE10260703A1 (en) * 2002-12-23 2004-07-01 Hilti Ag Combustion-powered setting tool
EP1529601B1 (en) * 2003-11-07 2007-10-31 Makita Corporation Combustion power tool
US7287679B2 (en) * 2004-07-28 2007-10-30 Powers Products Iii, Llc Powder activated setting tool piston retainer arrangement and method
US8186258B2 (en) 2009-08-26 2012-05-29 Robert Bosch Gmbh Table saw with actuator reset mechanism
US8291801B2 (en) * 2009-08-26 2012-10-23 Robert Bosch Gmbh Table saw with ratchet mechanism
US10029386B2 (en) * 2009-08-26 2018-07-24 Robert Bosch Tool Corporation Table saw with positive locking mechanism
US8327744B2 (en) * 2009-08-26 2012-12-11 Robert Bosch Gmbh Table saw with reset mechanism
US8286537B2 (en) * 2009-08-26 2012-10-16 Robert Bosch Gmbh Table saw with pressure operated actuator
US10076796B2 (en) * 2009-08-26 2018-09-18 Robert Bosch Tool Corporation Table saw with dust shield
US9079258B2 (en) * 2009-08-26 2015-07-14 Robert Bosch Gmbh Table saw with belt stop
US8210076B2 (en) 2009-08-26 2012-07-03 Robert Bosch Gmbh Table saw with mechanical fuse
US9969013B2 (en) * 2009-08-26 2018-05-15 Robert Bosch Tool Corporation Table saw with actuator module
US8297159B2 (en) 2009-08-26 2012-10-30 Robert Bosch Gmbh Table saw with dropping blade
DE102011076086A1 (en) * 2011-05-19 2012-11-22 Hilti Aktiengesellschaft A bolt gun and method for operating a bolt gun
US9517516B2 (en) 2013-03-14 2016-12-13 Robert Bosch Tool Corporation Blade drop power tool with dust management
US9511429B2 (en) 2013-03-15 2016-12-06 Robert BoschTool Corporation Blade drop for power device and method of manufacturing thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1802848A (en) * 1926-06-05 1931-04-28 Gen Motors Res Corp Fuel system
US2009929A (en) * 1932-10-21 1935-07-30 Johnson Joseph Naylor Portable internal-combustion actuated tamping machine or rammer
GB468096A (en) * 1936-06-02 1937-06-29 Barco Mfg Co Improvements in or relating to internal combustion percussive tools
DE919940C (en) * 1941-11-13 1954-11-08 Messerschmitt Boelkow Blohm Processing tool operated by solid fuels for the delivery of sudden work performances
US2522456A (en) * 1948-11-13 1950-09-12 Mallory Marion Internal-combustion engine
US2821372A (en) * 1955-10-12 1958-01-28 Bosch Arma Corp Fuel injection apparatus for spark ignition engines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398587A2 (en) * 1977-07-28 1979-02-23 Liesse Maurice Nail driver actuated by gas explosion - has valves operated in sequence to supply correct mixture of air and gas
EP0123716A2 (en) * 1983-05-02 1984-11-07 Signode Corporation Combustion gas-powered fastener driving tool
EP0123716A3 (en) * 1983-05-02 1985-07-03 Signode Corporation Combustion gas-powered fastener driving tool

Also Published As

Publication number Publication date
US2898893A (en) 1959-08-11
DE1265679B (en) 1968-04-04

Similar Documents

Publication Publication Date Title
GB914055A (en) Impact tool
US5909836A (en) Combustion powered tool with combustion chamber lockout
US7673779B2 (en) Combustion chamber distance control combustion-powered fastener-driving tool
AU1000588A (en) Manual recycler for detonating impact tool
GB808872A (en) A prower actuated tool
GB856232A (en) Improved fastener driving tool
GB1108441A (en) Improvements in or relating to explosively actuated devices
GB1158484A (en) Improvements in or relating to Explosively Actuated Tools
US20180236646A1 (en) Fuel gas-fired driving-in tool having a valve member
GB846445A (en) Explosively actuated driving tool
GB735032A (en) Improvements in and relating to a pistol intended for inserting bolts into compact material by means of explosive cartridges
GB1139026A (en) Explosive-actuated piston tool
ES381130A1 (en) Hammer ignition explosive tools with safety means
GB683856A (en) Stud driving tool and method of power control
GB1070787A (en) Impact tool
US3357617A (en) Piston-type fastening tool
GB1233657A (en)
GB1222439A (en) Percussion device for fire-arms
US9114516B2 (en) Portable combustion gas-powered tools with combustion chamber lockout system
GB1186407A (en) Improvements in or relating to Explosive-Actuated Fastener Driving Devices
SE7317608L (en)
GB1191218A (en) Power-actuated Fastener-driving Tools
GB997060A (en) Piston powder actuated tool
GB908132A (en) Improvements in percussive tools
GB1252030A (en)