Oscillating band saw machine

Details Oscillating band saw machine Oscillating band saw machine

B - Operations, Transporting

27

B

143/11, 146/32

B27B 13/00 (2006.01) B23D 53/04 (2006.01) B23D 55/08 (2006.01)

Patent

CA 1205357

- 15 - ABSTRACT OF THE DISCLOSURE Band saw machines embodying this invention are espe- cially adapted for cutting metal work pieces of extreme hardness and/or large cross-sectional size. The machines include a mechanism for oscillating or rocking the band saw relative to the work. The band saw is looped about an idler wheel and drive wheel spaced therefrom and a pair of spaced saw guide arms urge a span of the moving band saw against the work. In one embodi- ment of the invention, an eccentric drive oscillates the band saw housing and drive mechanism to cause the cutting angle of the blade to vary relative to the work for improved cutting efficiency and blade wear. In another embodiment, a piston is provided in one of the saw guides to which alternately deflects and releases the cutting span of the blade to cause a variation in its angular orientation relative to the work piece.

441702

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