US 4,058,150 A · Wood cutting apparatus

Abstract

A wood cutting or scarfing and wood sawing apparatus includes a power saw having a pair of mutually spaced scarfing blades positioned in advance of the saw blade and aligned with side edges thereof. The scarfing blades, spring urged into engagement with a wood article being cut, sever surface fibers of the article in the cutting path of the following saw blade. Because the surface fibers are previously cut by the scarfing blades, the saw blade, which may thus be of a conventional crosscut type, does not tear the surface and a clean, smooth edged cut is provided. The apparatus is particularly adapted to laminated wood articles, such as conventional hollow core doors and plywood panels and sheets, which are otherwise difficult and relatively time consuming to cut without splintering. To enable cutting of doors and large panels or sheets, a large article support structure and a saw guideway are provided.

Claims15

Dependent claims

Portable apparatus for cutting wood, said apparatus being movable over a workpiece as a unit, comprising, in combination:

a saw having a toothed blade and a motor coupled in operative relationship therewith;
a scarfing blade having a knife cutting edge thereon;
and,
means for supporting the scarfing blade at a position spaced in advance of the saw blade along the projected cutting path thereof, with the knife cutting edge being disposed approximately in alignment with one edge of the projected cut of the saw blade,
whereby the scarfing blade is adapted for making a smooth advance knife surface cut in the wood along one edge of the projected cutting path of the saw blade.

2 more elements

Dependencies are inferred from the claim text.

Wood cutting apparatus

Life of this patent

Wood cutting apparatus

Life of this patent

Abstract

Claims15