[1973]. Cam plate and levers, with rocking motion; the slots can be formed to give any intermittent, or variable motion to the lever ends.

[1974]. Cam lever motion from a reciprocating rod.

[Larger plate.]

[1975]. Spiral or wheel cam to give a reciprocating motion to a bar.

[1976]. Compound cam to operate a number of radial grips or arms.

[1977]. Internal compound cam to operate a number of radial slides for internal grip.

Section 10.—CRANK AND ECCENTRIC GEAR.

(See also [p. 28].)