GB1041780A - Pneumatic percussion tool - Google Patents
Pneumatic percussion toolInfo
- Publication number
- GB1041780A GB1041780A GB26359/65A GB2635965A GB1041780A GB 1041780 A GB1041780 A GB 1041780A GB 26359/65 A GB26359/65 A GB 26359/65A GB 2635965 A GB2635965 A GB 2635965A GB 1041780 A GB1041780 A GB 1041780A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- compressed air
- bores
- valve member
- chamber
- 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
- B25D9/14—Control devices for the reciprocating piston
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Drilling And Boring (AREA)
Abstract
1,041,780. Percussion tools. JAEGER MACHINE CO. June 22,1965 [Aug.10, 1964], No. 26359/65. Heading B4C. The piston 11 (not shown) of a pneumatic percussion tool is raised by compressed air supplied past a manually-operated throttle valve 38 into a chamber 50a above an annular valve member 55 and through bores 51 in the valve chest 50 and passages 30 (not shown) in the cylinder wall 15, to enter the cylinder through radial bores beneath the piston 11. When the piston 11 nears the upper end of the cylinder 15 the air pressure above it is such that the valve member 55 is raised to disconnect the bores 51 from the compressed air supply and to connect them to a chamber 53 vented to the atmosphere through a bore 54 (not shown). Compressed air is then supplied to the bores 58 in the valve member 55 to the space above the piston 11, whilst the space below the piston is exhausted to the atmosphere through ports in the cylinder wall. The piston 11 is thus driven downwardly and the valve member 55 returns to its lower position. Lubricating oil provided in a chamber 46 seeps through a porous plug 47 on to the valve parts when the compressed air supply is cut off.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US388488A US3232177A (en) | 1964-08-10 | 1964-08-10 | Pneumatic percussion tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1041780A true GB1041780A (en) | 1966-09-07 |
Family
ID=23534315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26359/65A Expired GB1041780A (en) | 1964-08-10 | 1965-06-22 | Pneumatic percussion tool |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3232177A (en) |
| BE (1) | BE667314A (en) |
| CH (1) | CH445409A (en) |
| DE (1) | DE1503170A1 (en) |
| ES (1) | ES315534A1 (en) |
| GB (1) | GB1041780A (en) |
| LU (1) | LU49172A1 (en) |
| SE (1) | SE300956B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3446294A (en) * | 1966-03-14 | 1969-05-27 | Joy Mfg Co | Percussion tool |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2164970A (en) * | 1937-09-10 | 1939-07-04 | Cleveland Pneumatic Tool Co | Riveting tool |
| US2254695A (en) * | 1940-04-04 | 1941-09-02 | Ingersoll Rand Co | Valve mechanism for rock drills |
| US2613646A (en) * | 1949-03-25 | 1952-10-14 | Independent Pneumatic Tool Co | Valve mechanism for pneumatic tools |
| US3038447A (en) * | 1960-02-16 | 1962-06-12 | Chicago Pneumatic Tool Co | Distributing valve assembly for pneumatic percussive tools |
-
1964
- 1964-08-10 US US388488A patent/US3232177A/en not_active Expired - Lifetime
-
1965
- 1965-06-22 GB GB26359/65A patent/GB1041780A/en not_active Expired
- 1965-07-02 SE SE8796/65A patent/SE300956B/xx unknown
- 1965-07-08 DE DE19651503170 patent/DE1503170A1/en active Pending
- 1965-07-19 ES ES0315534A patent/ES315534A1/en not_active Expired
- 1965-07-23 BE BE667314D patent/BE667314A/xx unknown
- 1965-07-27 LU LU49172D patent/LU49172A1/xx unknown
- 1965-07-27 CH CH1050465A patent/CH445409A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1503170A1 (en) | 1969-01-30 |
| CH445409A (en) | 1967-10-15 |
| SE300956B (en) | 1968-05-13 |
| US3232177A (en) | 1966-02-01 |
| ES315534A1 (en) | 1965-11-16 |
| LU49172A1 (en) | 1966-01-27 |
| BE667314A (en) | 1966-01-24 |
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