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 451
rm q fixed to its otherend, the further end q being forked so as to embrace the tube, and to rest the pressure of the springupon the top of z%. The weight of the tube being thus supported, it rises with the electrode, when it ispushed upwards by E1, until /touches z3, and after that the electrode… … ELECTRIC CLOCK. 449 The following are improved modes of preparing the materials for electrodes: take the powder ofvarious carbonaceous matters, which make electrodes of different qualities as to illuminating power andresistance to abrasion by the electric current. The materials preferred are;…
Mechanical engineering · Mechanics · Engineering
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