GB920160A - Percussive tool - Google Patents
Percussive toolInfo
- Publication number
- GB920160A GB920160A GB25167/61A GB2516761A GB920160A GB 920160 A GB920160 A GB 920160A GB 25167/61 A GB25167/61 A GB 25167/61A GB 2516761 A GB2516761 A GB 2516761A GB 920160 A GB920160 A GB 920160A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- valve
- piston
- spacers
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/06—Means for driving the impulse member
- B25D11/066—Means for driving the impulse member using centrifugal or rotary impact elements
Abstract
920,160. Compressed gas engines. GARDNER-DENVER CO. Jan. 12, 1961 [Dec. 7, 1960], No. 25167/61. Class 122 (3). [Also in Group XXIII] A pneumatic tool comprises a cylinder 12, a hammer piston 16 reciprocable in the cylinder, a distributing valve 24 at one end of the cylinder, a tool 19 at the other end of the cylinder adapted to be struck by the piston, and spacers 30, 32 for varying the blow of the piston and insertable between cylinder and valve. When the piston gives its lightest blow and shortest stroke, both spacers are housed in a head 20, and the spacer passages 56, 57 are aligned with the inlet passage 54 of the valve. When the piston gives its heaviest blow and longest stroke both spacers are placed between the valve and the cylinder, and the spacer passages 58, 59 are aligned with the outlet duct 51 from the valve. The head has a handle with an operatorcontrolled starting valve.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US74258A US3032013A (en) | 1960-12-07 | 1960-12-07 | Percussive tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB920160A true GB920160A (en) | 1963-03-06 |
Family
ID=22118614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25167/61A Expired GB920160A (en) | 1960-12-07 | 1961-07-12 | Percussive tool |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3032013A (en) |
| DE (1) | DE1278968B (en) |
| GB (1) | GB920160A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3398801A (en) * | 1966-08-22 | 1968-08-27 | Kotone Eimatsu | Pneumatic impact hammer for rock crushing and pile driving |
| US4278135A (en) * | 1978-05-03 | 1981-07-14 | Reedrill, Inc. | Variable volume pneumatic drill |
| US4196780A (en) * | 1978-05-09 | 1980-04-08 | Kabushiki Kaisha Komatsu Seisakusho | Hydraulic percussion drill |
| FR2675743B1 (en) * | 1991-04-23 | 1993-07-16 | Technifor | MARKING PEN. |
| DE102012200829A1 (en) * | 2012-01-20 | 2013-07-25 | Sram Deutschland Gmbh | Bicycle transmission, in particular in the form of a multi-gearbox hub |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US645582A (en) * | 1899-06-16 | 1900-03-20 | Barry Searle | Compound engine. |
| US1083369A (en) * | 1913-06-12 | 1914-01-06 | Henry E Le Gendre | Pneumatic tool. |
| US1219932A (en) * | 1916-12-20 | 1917-03-20 | Norris H Frost | Pneumatic tool. |
| US1582614A (en) * | 1920-12-06 | 1926-04-27 | Kusunoki Shusaku | Pneumatic hammer |
| US2773481A (en) * | 1954-01-14 | 1956-12-11 | Mechanical Res Corp | Percussion tools |
| US2976844A (en) * | 1959-10-16 | 1961-03-28 | Modernair Corp | Stroke adjustment for drive cylinders and the like |
-
1960
- 1960-12-07 US US74258A patent/US3032013A/en not_active Expired - Lifetime
-
1961
- 1961-07-12 GB GB25167/61A patent/GB920160A/en not_active Expired
- 1961-12-06 DE DEG33762A patent/DE1278968B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3032013A (en) | 1962-05-01 |
| DE1278968B (en) | 1968-09-26 |
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