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US 5,857,668 AGranted
Trueboard press for cutting device
OwnerWilliam R. Berryinventor
Life of this patent
Estimating the term…
Abstract
An apparatus for pressing and holding wooden boards flat in straight alignment and to correct any warpage of the board to achieve a true cut with a radial arm saw, dado cutter, or other such wood cutting equipment.
Claims15
A trueboard press for use with a cutting device, comprising:
- a base having a support member extending upwardly therefrom, said support member having an upper pivot attachment point and a lower pivot attachment point;
- a handle lever having a distal end defining a grip, an inner end pivotally connecting to said upper attachment point of said support member, and a medial portion thereinbetween;
- a pivoting press lever having a distal end and an inner end, said inner end pivotally connecting to said lower pivot attachment point of said support member;
- a connecting rod pivotally connecting said distal end of said pivoting press lever with said medial portion of said handle;
- whereby a portion of said pivoting press lever between said connecting rod and said support member is of a shorter length than said longitudinal pivoting press lever thereby extending the connecting rod upwardly and inwardly back toward the base support member at an acute angle of less than ninety degrees;
- and
- a fulcrum press member including a pressure plate and a support member extending upwardly therefrom pivotally connecting to said pivoting press lever for biasing a workpiece against a frame surface flattening and holding said workpiece providing for a true and precision cut of said workpiece with said radial arm saw.
4 more elements
Dependencies are inferred from the claim text.