[1484]. Flat spiral spring, clock spring or coil spring.

[1485]. Split ring spring.

[Larger plate.]

[1486]. Spring pole for foot hammer motion, &c.

[1487] to [1489]. Spring washers.

[1490]. Spindle-shaped compression spring.

[1491]. Flat spiral spring for piston rings.

See also [Nos. 1729], [630], [1501], [1503], [11], [767], [768]; and [Section 35] (Elastic Wheels) for other forms of springs and applications of them.

For equalising the tension of a spring, see [No. 1592] and [1602].