Low noise planing machine, particularly hand planer

Details Low noise planing machine, particularly hand planer Low noise planing machine, particularly hand planer

1984-06-06

1985-02-05

Smith, James G.

Bridges

B27C 110

Patent

active

044973543

ABSTRACT:
To reduce operating noise, and particularly the impact of sound pressure waves on the internal structure of the planing machine, the edges defining separating walls against which sound waves may impinge are inclined with respect to the axis of rotation of the cutter (16) or a theoretical line (46) parallel thereto, thereby extending the time of impact of individual pressure waves emanating from the cutter of incremental surface areas of the respective edges (26, 48, 50; 42, 52, 54; 30) to simultaneously attenuate the impact of the pressure waves and the timing of the impact.

REFERENCES:
patent: 795997 (1905-08-01), Mathews
patent: 982759 (1911-01-01), Bagalio
patent: 1418328 (1922-06-01), Power
patent: 2649873 (1953-08-01), Reich et al.
patent: 4066111 (1978-01-01), Klebe

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