| 摘要 |
401,281. Galvanic batteries. DOWNING, J. A., 9, South Terrace, and BLAKE, T., Edenmore, Western Road, both in Cork, Irish Free State. Feb. 8, 1932, No. 13495/31. [Class 53.] The positive plates of an accumulator are treated with a solution of oxalic acid after the accumulator has been discharged and emptied. The oxalic acid solution may be sprayed over the plates in the empty accumulator and after a short interval a small quantity of dilute sulphuric acid is similarly introduced. After a further short interval the cell is filled with water which may contain a small quantity of pyrogallic acid. |
