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 882
The plumber-block consists of a sole and cover, which, when practicable, are independently boltedtogether, the heads of the cover-bolts being countersunk in the sole. The cover is made to checkaccurately within the cheeks of the block, the surfaces being planed true to each other, so that thestress…
Mechanical engineering
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