Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 461
m 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, Avhen it ispushed upwards by E, until / touches 2, and after that the electrode… … ELECTRIC CLOCK. 449 Tlie 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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