Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 331
nd forms the cover. It iscalled the follower. When the follower, instead of forming;the entire face, is merely a ring rather than a plate, it some-times retains its older name of junk-ring. It received thisname when the packing material was hemp or junk and accesswas had to the grooves in which… … Fig. 235. goes out through the top of a vertical cylinder. Convenienceof access from the top induces the follower plate or ring to beon the piston-rod side in this case. The follower plate or ringis fastened to the spider by bolts which are themselves madeof bronze, or their nuts are. The object of…
Mechanical engineering · Steam power plants
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