Elementary telegraphy : a manual for students; written specially to meet the requirements of the ordinary grade of the subject as published in the syllabus of the city and guilds of London Institute (1910)
Pendry, H. W. (Henry Walter) · London ; New York : Whittaker & Co. · leaf 54
at the sametime very hard and durable. This active material insuresthe initial capacity being obtained, and as the working of THE HABT ACCUMULATOR 43 the cell proceeds, the grid itself gradually hecomesformed, so that the cajiacity is maintained during thewhole of the life. Observe the formation of… … Fia. IS.—Hurt cells, S type. sul)jected to a rolling pressure, with the residt that theedges of the grid strips are bent upwards (Fig. Vdci) ; thusgrid and paste are closely nnited, and ai)pear to be oneuniform mass. It is claimed that tliis plate has at least two to three yearslonger life than a…
Telegraph
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