STATIONARY ENGINES . 267 steam - cylinder end being quite plain . The parallel bars are fitted to the crosshead and to the cross bars on the back links , the brasses … of the links from centre to centre Fig . 176 . — Bracket for Parallel Motion . a , Bracket . B , Pin secured with nut . is one - half of the piston stroke ; the centre for the back links on the beam is equidistant from the end of the beam and the centre of Vibration , The parallel and radius rods…
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