Abstract: A saw guide system having a mechanism for applying an oil film to individual saw blades includes saw guide blocks having either common or separate distribution networks for oil and water. The saw guide block has an open chamber extending through the guide block for receiving and distributing the oil and water from the distribution networks onto the saw blades. The use of a lubricating film greatly reduces the accumulation of heat in the sawing system and allows operation of the sawing system without the introduction of cooling water.

Abstract: An improved magnetic saw chuck includes a disc-shaped magnetic saw chuck plate, having a saw engaging surface at which a number of magnets are mounted, and a cylindrical arbor extending from the plate. A three-segment ring, mounted over the arbor adjacent the saw engaging surface, has an outer, saw eye engaging surface over which the saw is mounted. The segmented ring has a tapered inner surface which engages the tapered outer surface of a jam nut which is threaded onto the arbor. Tightening the jam nut against the segmented ring separates the segments to center the saw. The segmented ring includes an O-ring within a circular groove in the ring to keep the segments secured to the arbor when a saw is not mounted to the chuck. To prevent relative rotary motion of the ring segments, so the segments move only radially to aid centering the saw on the chuck, a guide pin is mounted to and extends from each segment and engages a complementary radial guide slot in the chuck plate.