Woodworking – Work guide – Vertical spindle
Patent
1999-03-13
1999-11-23
Bray, W. Donald
Woodworking
Work guide
Vertical spindle
1441352, 1442531, 14414451, 33501, 33566, 33571, 408 16, 4082416, 409130, B27B 502
Patent
active
059882425
ABSTRACT:
A router and other cutting tools with a fixed center such as drills, shapers, milling machines, etc., used for cutting wood, metal or other materials, is provided with a fence mechanism for either a table or the base of a portable tool, for rapid and easy settings of the fence with respect to the center of the cutting tool. This is accomplished by a pivot mounting of the fence on a table or on a portable tool base, with respect to a block pivoted to the table or tool base, wherein the center of the pivot for the block and the center for the pivot for the fence are on opposite sides of the cutting tool and located on a line which passes through the tool center and the respective pivot locations. The desired spacing of the fence to the tool can be achieved using accurate spacers between the fence and the block, even with the tool being mounted in place. A curved slot in the fence structure, of predetermined shape and location with respect to the tool center, can be provided to receive a follower pin extending from the table and function as the fence pivot. The disclosure teaches how to develop such a curved guiding slot. A setup gage plate is also provided, with incrementally spaced holes to receive a post and cooperate with the pivoting fence to set the spatial relationship between the fence face and the bit.
REFERENCES:
patent: 5423360 (1995-06-01), Taylor et al.
Bray W. Donald
Nauman Joseph G.
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