Fig. 1533.
[Fig. 1533] represents the chuck in use for holding a piece of shafting s to cut a keyway or spline in it. In this case a bevelled piece j is employed, its bevelled face holding the work down upon the chuck face.
Fig. 1534.
[Fig. 1534] represents a chuck termed shaper centres, because the work is held between centres as in the case of lathe work. The live spindle is carried in and is capable of motion in a sleeve, the latter having upon it a worm-wheel, operated by a worm, so that it can be moved through any given part of a circle, and has index holes upon its face to determine when the wheel has been moved to the required amount.
For work that is too large to be operated upon in the class of shaping machine shown in [Fig. 1506], and yet can be more conveniently shaped than planed, a class of machine is employed in which the tool-carrying slide is fed to the work, which is chucked to a fixed table or to two tables.
Fig. 1535.