Cutting – Rotatable disc tool pair or tool and carrier – With guard for tool
Patent
1983-09-07
1985-10-29
Yost, Frank T.
Cutting
Rotatable disc tool pair or tool and carrier
With guard for tool
834772, 83544, 181205, B26D 102
Patent
active
045494568
ABSTRACT:
A noise damping guard for a circular saw blade of the type mounted for axial rotation relative to a material support plane disposed transverse to the cutting axis of the blade. The guard comprises a stationary lower guard section secured beneath the support plane and a pivoted upper guard section secured above the support plane. Each guard section comprises a guard frame supporting an inner pair of anti-friction metal plates secured in parallel-spaced relationship to one another to receive a saw blade therebetween and define an air gap between each side of the blade and an inner face of the metal plates. A spacer plate and a backing plate is secured to an outer face of each of the metal plates to prevent the vibration of the inner anti-friction metal plate and to provide an additional noise barrier and still further to maintain the metal plates in alignment. A pivoting support arm is secured to the guard upper section for upward displacement of the guard upper section.
REFERENCES:
patent: 2572326 (1951-10-01), Evans
patent: 2593596 (1952-04-01), Olson
patent: 3105528 (1963-10-01), Loughridge
patent: 3540334 (1970-11-01), McLauchlan
patent: 3812752 (1974-05-01), Jaegers
patent: 3850060 (1974-11-01), Wilcox
patent: 3918334 (1975-11-01), Wilcox
patent: 4137806 (1979-02-01), Segal et al.
Noise-Con 79 Purdue University, West Lafayette, Indiana, M. Zockel, D. A. Bies & S. G. Page, Mechanical Engineering Department, University of Adelaide, Adelaide, S.A. 5000.
Elmaraghy Rachik
Fontaine Michel
Centre de Recherche Industrielle Du Quebec
Phan Hien H.
Yost Frank T.
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