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Chapter CLIII: Section 91: Wheels in Segments

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(_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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