GB914055A - Impact tool - Google Patents
Impact toolInfo
- 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
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.
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)
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)
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)
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 |
-
1958
- 1958-04-11 US US727856A patent/US2898893A/en not_active Expired - Lifetime
-
1959
- 1959-04-09 DE DEO6715A patent/DE1265679B/en active Pending
- 1959-04-10 GB GB12260/59A patent/GB914055A/en not_active Expired
Cited By (3)
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 |
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