GB973797A - Improvements in percussion systems of mechanically driven hammers - Google Patents
Improvements in percussion systems of mechanically driven hammersInfo
- Publication number
- GB973797A GB973797A GB4162163A GB4162163A GB973797A GB 973797 A GB973797 A GB 973797A GB 4162163 A GB4162163 A GB 4162163A GB 4162163 A GB4162163 A GB 4162163A GB 973797 A GB973797 A GB 973797A
- Authority
- GB
- United Kingdom
- Prior art keywords
- collar
- pin
- piston
- percussive
- driven
- 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
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
-
- 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
- B25D11/12—Means for driving the impulse member comprising a crank mechanism
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
973,797. Percussive tools. H. WACKER, and P. WACKER. Oct. 22, 1963 [Oct. 31, 1962], No. 41621/63. Heading B4C. A mechanically-driven percussive tool, such as a demolition hammer, comprises a percussive piston 2 driven via a crank and connecting rod 4 and having a pin 3, a tapered collar 11 being formed on the pin for positive engagement with a corresponding tapered bore 10 in the piston should breakage occur of cushioning springs 6, 7 located between the pin and piston. In order to permit the escape of air from the bore 10 when the collar 11 is driven therein upon breakage of a spring a groove 12 is formed in the collar; alternatively, a longitudinal bore may be provided in the collar.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW0033242 | 1962-10-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB973797A true GB973797A (en) | 1964-10-28 |
Family
ID=7600274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4162163A Expired GB973797A (en) | 1962-10-31 | 1963-10-22 | Improvements in percussion systems of mechanically driven hammers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB973797A (en) |
-
1963
- 1963-10-22 GB GB4162163A patent/GB973797A/en not_active Expired
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