MODERN STEAM l ’ RACTICE . 6io the large end are square , surface thereby being gained for taking the thrust . The butt has a large hole cut out , for lightening it , tending to reduce the balance weights placed on and between the spokes of the driving wheels . The bush for the small end of the rod… … ened up with a single key and jibs , with side nut for holding the key in position , as likewise a split pin on the under side . In another example ( Fig . 482 ) the small end is forked ; the bushes at both ends are lined with white metal ; the ends of the bushes are not square , but
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