Harmsworth, Alfred Charles William, Sir, bart · London Bombay : Longmans, Green, and Co. · leaf 230
flexible band, but the pulleysare not smooth as before. Their faces are cut into teethsuitably shaped to engage the links of a metallic chainwhich takes the place of the belt. As with belt driving, thedriven pulley or chain wheel, B, revolves in the same direc-tion as the driving pulley or sprocket… … Fig. 3 shocks and secures silent running. The extra friction on thebearings necessitated by belt driving is avoided, as the chainmay be run fairly slack and the lower side hang loosely asshown in the diagram, the chain automatically tightening itselfat the top as the different links are taken up by…
Automobiles
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