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

Chapter CLVI: Section 97: Handles, Handwheels, Keys and Spanners

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(_See also p. 220._)

=2559. Dished handwheel.=

=2560. Bent handle,= with looped end.

=2561. Handle key= for cock.

=2562. Handwheel lock nuts= for a screwed bolt or other fastening.

=2563. Coned handle.=

=2564. Cranked key or spanner.=

=2565. Loop handle= for plain lever.

=2566. Hinged spanner= for tightening nuts or screwed glands, having pin holes or notched edges.

=2567. Cranked handle,= offset.

=2568. Bow handle.= May be fixed or made to swivel.

=2569. Balanced hand crank.=

=2570. Hand crank,= with holes to vary the radius.

=2571. Locked handwheels= for valves, to be movable in a certain order only.

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The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purposeChapter CLVI: Section 97: Handles, Handwheels, Keys and Spanners

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