Woodworking – Combined machine
Patent
1989-08-02
1990-11-27
Bray, W. Donald
Woodworking
Combined machine
29560, 144 1C, 144 35R, 408 20, B27C 900
Patent
active
049728857
ABSTRACT:
A power module for providing power to any one of a plurality of special purpose woodworking tools has a variable speed headstock on a base, and a tool support carriage on the base. The tool support carriage is formed with two pairs of tube-receiving sockets for receiving the support tubes of a special purpose woodworking tool. The sockets are formed at two different levels above the base, such levels corresponding to the difference in spacing of the input shaft connections with respect to the support tubes. The base is mounted for movement toward and away from the headstock, providing alignment of the input shaft with the headstock hub. A variable speed drive in the headstock employs an intermediate three-section pulley of the variator type, and a speed control knob is connected to position the variable speed drive to provide for the selection of speed for any particular tool.
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patent: 2857717 (1958-10-01), Edgemond, et al.
patent: 2927612 (1960-03-01), Edgemond, Jr. et al.
patent: 4515191 (1985-05-01), Fetty
patent: 4598744 (1986-07-01), Bons et al.
Drawing of May Tool & Sign Die, Inc., dated Jan. 1987.
Shopsmith, Inc. Bulletin 505641, 12/82.
Shopsmith, Inc. Bulletin 505642, 6/82.
Shopsmith, Inc. Bulletin 505681-B, 1/84.
Flora David D.
Legler John G.
Schaefer, Jr. William J.
Snyder Steven A.
Bray W. Donald
Shopsmith, Inc.
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