B - Operations – Transporting – 23 – D
Patent
B - Operations, Transporting
23
D
B23D 57/00 (2006.01) B23D 45/10 (2006.01) B23D 55/00 (2006.01) B27B 15/06 (2006.01)
Patent
CA 2301353
A saw assembly for cutting a board from a log in a single pass. The assembly includes a band saw primary blade for forming a horizontal cut along the bottom surface of the board, and first and second spaced apart circular saw blades for simultaneously forming the vertical cuts along the edges of the board. The circular saw edger blades are mounted to a pivotable frame which can be lowered and raised into and out of cutting engagement with the log. Power may be taken from the main arbor shaft which rotates the wheels of the band saw blade, via an angled drive belt and pulleys for example. The distance between the circular saw edger blades may be adjusted so as to adjust the width of the board, by sliding the edger blades towards and apart from one another along the edger blade arbor shaft. The position of the edger blades may be controlled by adjuster bars which act through collars which engage control bearings on the edger blades. The assembly may be used in a portable saw mill, and the band saw primary blade and circular saw edger blades may be mounted to a moving frame for simultaneous longitudinal movement relative to a stationary log.
Dahl Chet J.
Wyndham Nicholas J.
Dahl Chet J.
Russell Reyneke
Wyndham Nicholas J.
LandOfFree
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