Fig. 3105.
[Fig. 3105] is an end view of the machine showing the feed worms h and i, and the belt tightener v, which is carried on the arm u on whose shaft is the weight y, attached to which is the handle x.
SEGMENTAL CIRCULAR SAWS.
A segmental circular saw is one in which the saw is composed of segments secured by screws to a disc, the construction being such as shown in [Fig. 3106], in which a is the saw arbor, d the disc, and e, f, g, h, i, j, etc., the segments.
Fig. 3106.
The segments are made of varying thicknesses at the cutting edge, and are tapered for a distance for from 6 to 8 inches inwards from the teeth points. Thus in the figure there is shown at p an edge view of a segment, from a to b being parallel, and from b to c being ground off taper.