Catalogue of Edison-Lalande batteries, Edison motors and fan outfits, Edison projecting kinetoscopes, Edison X-ray apparatus, Edison cautery transformers, Edison electro-medical appliances manufactured by Edison Manufacturing Co., Thomas A. Edison, Proprietor.

  • Edison Manufacturing Company, New York.
Date:
[1910?]
Catalogue details

Licence: Public Domain Mark

Credit: Catalogue of Edison-Lalande batteries, Edison motors and fan outfits, Edison projecting kinetoscopes, Edison X-ray apparatus, Edison cautery transformers, Edison electro-medical appliances manufactured by Edison Manufacturing Co., Thomas A. Edison, Proprietor. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

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    Tlie -weight of potash and qnautity of heavy paratline oil used in each type of cell we make, are as follows: Type A or B, 1 can granulated potash, weight 2K oz. to 8 oz. water, 1 oz, oil J or C, 1 . 8 oz. to 24 oz. 2 oz. OorE, 1 1 lb. to 3 lbs. 4 oz. V, 1 ' 1 lb. to 3 lbs. 4oz. Z, -1 11 oz. to 2 lbs. 2oz. Sor K, 1 2 lbs. to 6 lbs. 4 oz. RorG, 1 2 lbs. to 6 lbs. 6 oz. Y, 1 ' 2lbs. to 6 lbs. 6 oz. WorP, 1 4 lbs. to 12 lbs. 8 oz, Xor D, 2 bottles (one for each partition), each containing bH oz. potash to 16 oz. water in each partition, 2 oz. oil in each partition. The solution must always be renewed when the zincs and oxides are renewed, ns it is then completely saturated with zinc oxide, which is held in solution, and is really changed into zincate of potash. If the old solution is not changed, but used over again, it finally becomes' super-saturated with zinc oxide, which will solidify near the bottom of the cell in the form of needle- like crystals, and the efficiency of the battery will be greatly impaired. The solution should always reach to the lower colored line in the jar after it has cooled down, and it may then probably be found necessary to add a little water when setting up the cell, to bring it to this line again, as the volume of solution diminishes and the density increases as it cools. When these cells are lised on outside work and ARE EXPOSED TO TEM- PERATURES VARYING FROM FREEZING TO 40 DEGREES BELOW ZERO, it is advisable to use a 20 per cent, solution of caustic potash, as when a solution of this density is employed, the batteries will work much better in extreme cold weather, as the solution will not thicken in the least, whereas, when a 25 per cent, solution is used at these low temperatures, there is a tendency of the solution to partially jellify, which impairs the efficiency of the battery FOR THE TIME, The denser solution is, however, to be preferred for ordinary work, as the efficiency of the battery is somewhat higher when using a 25 per cent, solution in ordinary temperatures than when using a 20 per cent, solution. ] The following table gives the proportionate weights of potash and water for r low temperature work, and it is advisable to always use this density of solu- tion on Railway Signal Work, where the batteries are placed in exposed positions. Type J or C, gran, potash, weight 6 oz. to 24 oz. water, 2 oz. oil 0 or E, V, z, s or K R or G Y, W Y or P, n X or D, (each partition) 4 oz. potash 12 oz. to 3 lbs. 11 4 oz. 12 oz. to 3 lbs. n 4 oz. 8 oz. to 2 lbs. 2oz. ]H lbs. to 6 lbs. 11 4 oz. ]% lbs. to 6 lbs. II 6 oz. ]}4 lbs. to 6 lbs. ll 6 oz. 3 lbs. to 12 lbs. 11 8 oz. ash to 1 lb. II 2oz.