The cleaning and electro-plating of metals; . n to the dynamo eachmorning adds greatly to efficiency, and willkeep commutator and brushes in good condi-tion. Be sure the dynamo rests firmly on itsfoundation. Great care should be taken in ad-justing the brushes not to have too much pres-sure on commutator. The brushes should notbear too hard on commutator, but just enoughto insure perfect contact between brush-holderand rod. If commutator shows signs of rough-ness, smooth with fine sand-paper, and lubricatewith vaseline. Never use emery paper. Theconducting bars running from the dynamo pastthe
The cleaning and electro-plating of metals; . n to the dynamo eachmorning adds greatly to efficiency, and willkeep commutator and brushes in good condi-tion. Be sure the dynamo rests firmly on itsfoundation. Great care should be taken in ad-justing the brushes not to have too much pres-sure on commutator. The brushes should notbear too hard on commutator, but just enoughto insure perfect contact between brush-holderand rod. If commutator shows signs of rough-ness, smooth with fine sand-paper, and lubricatewith vaseline. Never use emery paper. Theconducting bars running from the dynamo pastthe various tanks in the plating room shouldbe large enough to carry all current that thedynamo gives without heating, and the variousvats can be connected by means of wires orrods leading from the conducting bars. Greatcare should be taken to have the wires of asufficient size so as not to lose too much powerin overcoming resistance. The current must beregulated for each tank by a resistance switcli The Cleaning and Electro-Plating of Metals 17. 18 The Cleaning and Electro-Plating of Metals or rheostat connected to the positive bar andalso to the positive bar of the tank. Rheostats
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1921
