Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 502
a hemp washer being interposed at thepoint of contact. In the plate, however, a different plan is shown, which is again represented in Fig.1417. The packing-screws do not pass through the doors, but are kept short; and opposite to eachscrew a plug is situated in the packing-door, which has tc be…
Mechanical engineering
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