GB255519A - Improvements in or relating to percussive tools - Google Patents
Improvements in or relating to percussive toolsInfo
- Publication number
- GB255519A GB255519A GB1036425A GB1036425A GB255519A GB 255519 A GB255519 A GB 255519A GB 1036425 A GB1036425 A GB 1036425A GB 1036425 A GB1036425 A GB 1036425A GB 255519 A GB255519 A GB 255519A
- Authority
- GB
- United Kingdom
- Prior art keywords
- space
- inlet
- pipe
- valve
- charge
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
255,519. Alcock, J. F. April 21, 1925. Percussive tools. - A two - stroke internalcombustion engine piston D and a free hammer piston F move oppositely in a working cylinder C, with inlet and exhaust ports C2, C<3>. The hammer piston F is returned by compressed air or gas from the space C<6>, conveyed to the front of the tool by a passage H, whilst the charge entering at C<5> is compressed in the crank case and transferred to the cylinder by way of a pipe C<4>. The pressure in the space C<6> is maintained in accordance with that of the charge by means of a pipe J<1> and a non-return valve J, mounted so as to be reversible for the purpose of retaining the tup in its forward position. The exhaust escaping at K<1> is used to draw air through a cover K<2> over the cooling ribs K. In a modified arrangement the space C<6> communicates with the space H through inlet and outlet valves P, P<1>, either of which is connected with the space H. the other being put to atmosphere through the space Q<5>, by means of a hand-operated chauge-over valve Q. A relief valve S is also provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1036425A GB255519A (en) | 1925-04-21 | 1925-04-21 | Improvements in or relating to percussive tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1036425A GB255519A (en) | 1925-04-21 | 1925-04-21 | Improvements in or relating to percussive tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB255519A true GB255519A (en) | 1926-07-21 |
Family
ID=9966469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1036425A Expired GB255519A (en) | 1925-04-21 | 1925-04-21 | Improvements in or relating to percussive tools |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB255519A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2560559A (en) * | 1945-12-10 | 1951-07-17 | Henry C Dearborn | Gasoline operated pneumatic tool |
| FR2433632A1 (en) * | 1978-08-14 | 1980-03-14 | Hilti Ag | PERFORATOR HAMMER AND BURINER DRIVEN BY INTERNAL COMBUSTION ENGINE |
| WO2011085986A1 (en) * | 2010-01-15 | 2011-07-21 | Wacker Neuson Se | Drill hammer and/or impact hammer having free convection cooling |
| CN109594916A (en) * | 2019-02-02 | 2019-04-09 | 吉林大学 | A kind of super burn formula double acting bottom hole impact detritus drilling tool and bottom hole impact detritus method |
-
1925
- 1925-04-21 GB GB1036425A patent/GB255519A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2560559A (en) * | 1945-12-10 | 1951-07-17 | Henry C Dearborn | Gasoline operated pneumatic tool |
| FR2433632A1 (en) * | 1978-08-14 | 1980-03-14 | Hilti Ag | PERFORATOR HAMMER AND BURINER DRIVEN BY INTERNAL COMBUSTION ENGINE |
| WO2011085986A1 (en) * | 2010-01-15 | 2011-07-21 | Wacker Neuson Se | Drill hammer and/or impact hammer having free convection cooling |
| CN102770246A (en) * | 2010-01-15 | 2012-11-07 | 威克纽森产品有限两合公司 | Drill hammer and/or impact hammer having free convection cooling |
| CN102770246B (en) * | 2010-01-15 | 2015-09-16 | 威克纽森产品有限两合公司 | There is boring and/or the jump bit of free convection cooling |
| US9254559B2 (en) | 2010-01-15 | 2016-02-09 | Wacker Neuson Produktion GmbH & Co. KG | Drill hammer and/or impact hammer having free convection cooling |
| CN109594916A (en) * | 2019-02-02 | 2019-04-09 | 吉林大学 | A kind of super burn formula double acting bottom hole impact detritus drilling tool and bottom hole impact detritus method |
| CN109594916B (en) * | 2019-02-02 | 2023-03-17 | 吉林大学 | Super-combustion type double-acting hole bottom impact rock crushing drilling tool and hole bottom impact rock crushing method |
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