CELLULOID ACCUMULATOR CASES

Radio Record, Volume I, Issue 12, 7 October 1927, Page 14

CELLULOID ACCUMULATOR CASES

REPAIRING LEAKS. ; "Sometimes a celluloid accummlator case will develop a leak, and uniess this is repaired in a suitable manna will continue to give trouble, despite the best efforts. If the leak is not very large there is no reason why it should not be repaired by any handy person. Buy a few pennyworth of acetone from the chemist and dissolve a few pieces of celluloid-perfectly clean pieces they must be-in it. ‘the ceiluloid should be added until the solution becomes rather thick in consistency. Keep the acetone corked up while the dissolving is being carried out, as it is extremely volatile and would soon evaporate if allowed to remain in the open. It is best now to empty the accuniula-tor-it neea not be rinsed out or dried --and then apply the solution, which should be practically thin paste by now, to the leaky portion of the accumulator. Allow to dry and then apply more. Do this three or four times, when it will be seen that a considerable layer of celluloid has covered and filled up the leak It is necessary, of course, to have the portion of the battery round the leak free from dirt. As soon as the celluloid paste applied to the leaky portion has dried-it will do so very quickly-the acid can be poured back into the battery and the cells are ready for work once more. It is important that the celluloid dissolved in the acctone should be free from dirt. Pieces of old photographic film will be quite suitable if the gelatine is removed by soaking in hot water previously,