Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 626
frame, and is terminated by heads branching out for the bottom of tliapan to rest against, upon the inside. This is found to be indispensable when the work is niucli flaring.Ilie heads of tliis gage are provided with soft or smooth surfaces, to prevent them rubbing tlie tin so asto mar or injure… … The piece k is a collar witli a lever attached thereto; the collar part of it is fitted upon the arbor 6,allowing the arbor to turn freely in it, while the upper end passes through a loop m in the frame, toKeep it in an upright position; and below the collar, this lever passes through the little…
Mechanical engineering · Mechanics · Engineering
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