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 457
ixed 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 za. 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 rises… … 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
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