✨ Battery Maintenance Procedures
Sept. 1.] THE NEW ZEALAND GAZETTE. 2171
79
more often than line batteries, but do not require a larger quantity of sulphate at any one time than the latter.
Batteries, when once charged, should not be disturbed or Movement. shaken, nor should the metals or elements be disturbed, for the reason that moving them causes the sulphate-of-copper solution (which should occupy only the lower part of the cell) to rise up until it touches the zinc, whereby the latter is uselessly eaten away.
One principal cause of trouble and weakened currents from Examination. batteries is the binding-screws or terminals on the battery-boxes getting wetted with sulphate-solution, and corroding. These should be examined at least weekly, and scraped or filed clear and bright where they hold the wire. This defect may, however, be greatly avoided by the exercise of a little care when filling up the batteries, and seeing that the solution is not splashed upon the terminals.
When a battery requires cleansing, and no spare cells are Cleaning cells. at hand to take the place of those to be cleaned, it is advisable to draw or pour off carefully (without disturbing or mixing up the fluid contents of the cell) one-half of the fluid, which, when diluted with an equal amount of water, may be used in the new cells.
Where there are many cells in a battery it is advisable to Periodic cleaning. clean a certain number—say, ten—periodically, every week, fortnight, or month, according to the number, so that each section of ten cells may be in action for about three months.
When new zincs are required to be riveted to old coppers Riveting zincs to old coppers. care must be taken that the copper straps attached to each are clean, dry, and bright before riveting them together. Improved contact will result from soldering the connections, which should be done when practicable.
In case of a battery-wire breaking, it is preferable to replace Broken wires. it altogether by a new length; but where no spare wire is at hand the two ends of the broken wire may be joined, the gutta-percha being pared off the two ends for about an inch and a half, the wire then well scraped bright with a knife-edge, filed, or scoured with emery-paper, and then twisted up tightly together in the form of a bell-hanger’s joint. Twisting wires loosely for any connections must not be allowed: they must be held firmly by pliers or other means, twisted as tightly as possible, and soldered immediately.
THE BICHROMATE BATTERY.
374. Each cell consists of a glass or stoneware jar, either Description. of a quart size or of the same size and pattern as that used for
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NZ Gazette 1905, No 80
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Maintenance and Setup Procedures for Daniell Batteries
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🏗️ Infrastructure & Public WorksDaniell battery, battery maintenance, cleaning, sulphate of copper, zinc element, copper element, glass cell, earthenware tube, gutta-percha tube, current regulation
🏗️ Description of Bichromate Battery Construction
🏗️ Infrastructure & Public WorksBichromate battery, glass jar, stoneware jar, battery cell, quart size