Collins, A. Frederick (Archie Frederick), 1869- · Boston, Small, Maynard and company · leaf 237
nd justlarge enough to let the valve rod, see C in Fig. 73,slip through it. The rocker arm D is Vie inch thick, exceptnear the middle where it bulges out to Vie inch; 222 The Boys Book of Engine-Building it is % inch wide and i%6 inch long and a slotViq inch wide and % inch long is sawed out ofone… … ® Fig. 74. Top View of the Engine inch. The rocker arm is now pivoted to thestandard and, since both are cut out half way,the hole in the end of the rocker arm and thehole in the end of the arm of the support will bedirectly over and in a line with each other. The cam rod is a steel rod Vs inch in…
Steam-engines
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