. Western electrician . e of excellence. The qualities that a good storage battery must have are: First—Non-liability to mechanical disintegration after continued use or during rapid charges or heavy discharges. lead oxide paste into or against a lead frame in order to ob-tain the necessary active material will not produce theporosity and surface area which will give a maximum ofcapacity for a given weight and size of cell--a feature ofgreat importance where storage cells are destined for trac-tion purpose. Lastly, cells made in this way show a poor contact between the active substance and the
. Western electrician . e of excellence. The qualities that a good storage battery must have are: First—Non-liability to mechanical disintegration after continued use or during rapid charges or heavy discharges. lead oxide paste into or against a lead frame in order to ob-tain the necessary active material will not produce theporosity and surface area which will give a maximum ofcapacity for a given weight and size of cell--a feature ofgreat importance where storage cells are destined for trac-tion purpose. Lastly, cells made in this way show a poor contact between the active substance and the lead frame. chlorides of lead and zinc, in certain proportions, is fused,and the product cast into pastilles in suitable thus cast, the mixed chlorides are of a whitishcolor, vitreous character and very brittle. The pastilles to beused for negative plates are about 3^ inch in cross-section and5 16 inch thick, and are cast in groups of four, which areunited by filaments from 3-32 to y^ inch thick. The posi-. FIG. 3. TURBINE PLANT OF THE BUCHANAN POWER & ELECTRIC COMPANY.—DET.^IL OF QUILL. The result of this is increased internal resistance and heat-ing, with consequent diminished output. Some years ago John Scott of Edinburg, gave thecity of Philadelphia a sum of money, the interest on whichwas to be used for the encouragement of ingenious menand women who make useful inventions. The legacyprovides for the distribution of a medal inscribedTo the most deserving, and a money premium. TheBoard of City Trusts of the city of Philadelphia delegated tivesare cast separate—each one having a beveled V-shaped periphery. These pastilles are then placed in asuitable mold, and molten antimonial lead cast around themunder high pressure. This feature of casting under pres-sure is one of the improvements due to Herbert Lloyd,and has been patented by him. The connecting sheetsof the negative groups, the V-shaped bevel of thepositives and the casting under pressure combine to ma
Size: 2970px × 842px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookidwesternelect, bookyear1887
