System for shaping and finishing wood chair seats

Details System for shaping and finishing wood chair seats System for shaping and finishing wood chair seats

1973-06-26

1976-03-09

Smith, Al Lawrence

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51101R, 51138, B24B 728, B24B 1702

Patent

active

039422887

ABSTRACT:
A succession of wood workpieces is displaced by a conveyor past a plurality of finishing stations with the grain of the workpieces extending perpendicular to the transport direction. An abrasive surface of a finishing tool is displaced over the workpiece parallel to the grain direction at a peripheral speed equal to about 150 times the advance speed of the workpieces. These workpieces are wood chair seats formed with a surface depression and the abrasive surface is a sanding belt spanned over a vertically displaceable soft drum or cushion. The soft support for the sanding belt is displaced vertically by a cam arrangement to conform the path of travel of the sanding surface to the workpiece. The sanding region of one station is staggered transversely to the transport direction with respect to the other stations.

REFERENCES:
patent: 2248191 (1941-07-01), Pratt
patent: 2486819 (1949-11-01), Brown
patent: 3376672 (1968-04-01), Schmidt
patent: 3611647 (1971-10-01), Davis

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