Collins, A. Frederick (Archie Frederick), 1869- · Boston, Small, Maynard and company · leaf 236
D in Fig. 73. It is easier to makea pattern for the support B and the rocker armD and have them cast in brass than to shapethem up by hand. The support is formed of a standard 1 % incheshigh at the back and 1% inches high in front;half of the top end is cut away as shown at B A Vs-H. P. Gas Engine… … ? ARM %2>
Steam-engines
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