Clay pigeon throwing device
US3949728A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 11, 1974 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Sep 11, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41J9/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A clay pigeon trap comprises a shaft member, provided with an adjustable support mounting, which carries at one end a casing containing a bearing providing a pivot mounting for an angularly movable throwing arm and tensioning apparatus for spring loading the throwing arm prior to a throwing stroke. The throwing arm has a pivot shaft projecting perpendicularly from its underside to engage in said bearing and the tensioning apparatus includes a freely rotatable tensioning bush within the casing, a helical coil torsion spring coupling the tensioning bush to the pivot shaft within the casing, and a tensioning arm which is detachably secured to the tensioning bush and which projects outside the casing to enable the bush to be turned so as to tension the spring by manipulating the tensioning arm whilst the throwing arm is held alongside the shaft member in its rearwardly directed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.