for the crank pin forms part of the rod . Some makers leave a collar for bearing on the top of the piston ; and with a solid piston rod and crosshead the glands require to be cut . The collar , however , may be dispensed with , as a plain cone is quite sufficient . Recesses must be left in the… … big . 238 . — Piston Rod and Crosshead forged on . Fig . 239 . — Piston Rod and Socket for Crosshead . A , Crosshead . B , Cap . c c , Bolts . d , Piston rod . a , Crosshead of brass . B , Cap . cc , Bolts . e , Brasses . d , Socket piece . e , Cotter . brasses , which are secured by means of caps…
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