Harmsworth, Alfred Charles William, Sir, bart · London Bombay : Longmans, Green, and Co. · leaf 231
^^ H^-4^p^ale JiHiei Fig. 4 metal, a, a, a, through the ends of which the connecting pins,B, n, B, pass, these pins turning slightly in their bearings in theblocks as they pass round the chain wheels. In the latter—shown in fig. 5—the blocks are replaced by connecting platesA, A A, and upon the… … !■§• 5 small cylinders or rollers, B, b, b, are fitted, which roll into andout of the chain-wheel teeth as they come round. As a rule,unless some special provision be made for thorough lubricationof the connecting pins of the blocks, roller chains are usuallyfound to run with the greater smoothness…
Automobiles
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