[1484]. Flat spiral spring, clock spring or coil spring.
[1485]. Split ring spring.
[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].