Fig. 3200. Fig. 3201. Fig. 3202. Fig. 3203.

The two-sided head shown in [Fig. 3202] is provided with a set screw, by means of which a delicate adjustment of the height of the cutter may be made. [Fig. 3203] represents a three-sided slotted head, or in other words T-shaped grooves, and not bolt holes are used.

CUTTER HEADS WITH CIRCULAR CUTTERS.

Fig. 3204.

This form of cutter head was invented by S. J. Shimer, and are generally known as Shimer cutter heads. The principle of construction is shown in [Fig. 3204], which is for an ogee door pattern.

The cutters are circular in form and are seated at an angle to the flange to which they are bolted, this angle giving side clearance to the cutting edges.