The Automobile Handbook

The Automobile Handbook

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 edition. Excerpt: ...lamps requiring the saim' voltage as that of the charging current can be had, they should be connected simply in parallel. When tungsten filament lamps or carbon lamps of other than 32 or 16 c. p. are used as resistance, the number of lamps required may be found by multiplying the charging rate in amperes by the line voltage and dividing the product by the watt consumption per lamp. For example, if 40-watt lamps arc to be used, with a voltage of 110 and a desired amperage. 8X110 8S0 of 8, the result would be: --z.--Tmta "22 lamos. 40 40 The methods just given for securing the necessary resistance are those actually used in practice, and they are accurate enough for this purpose. To charge a low-voltage battery, such as an ignition storage battery, from a 500-voIt direct-current circuit is a very inefficient method. The high voltage makes it somewhat dangerous and requires that very good insulation be used throughout the circuit. Lamps form a convenient resistance, as they are easily obtained, but an adjustable rbeostat is frequently used, as shown at r. Fig. 9 (c). The amount of resistance required in the rheostat may be calculated by subtracting the approximate voltage at which the storage battery should be charged from the charging-lme voltage, and then dividing this difference by the desired charging current. Care of Lead-Plate Batteries.--A storage battery that is in service should be inspected at least every 2 weeks and in warm weather somewhat oftener, and chemically pure, that is. distilled, water added to the electrolyte. The solution should never be allowed to get below the top of the plates. Only pure water, free of mineral matters, should be used in a storage batten.-Acid should only be added when a quantity of the electrolyte more

Product details

  • Paperback | 102 pages
  • 189 x 246 x 5mm | 195g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236639685
  • 9781236639684