The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purpose

by Thomas Walter Barber

Section 91.—WHEELS IN SEGMENTS.

(See also [p. 212].)

[2547]. Spider wheel or tension wheel. Cycle wheels are constructed on this principle, as also were the great wheels at Chicago and Earl’s Court. There are many varieties of this type.

[2548]. Steel railway wheel, with dished web. Wrought iron or steel disc fly-wheels are now in some cases replacing wheels with arms.

Fly-wheels are also constructed with the rim formed of wrought-iron bars wound round and rivetted together, or of heavy wire coiled round and secured with steel belts.

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