| 摘要 |
727,417. Batteries. AUTO-LITE BATTERY CORPORATION. March 25, 1952, No. 7632/52. Class 53. A separator is made from cellulose fibres formed into a sheet and impregnated with a phenol formaldehyde resin. The sheet is provided with ribs which are provided with an additional quantity of resin on their upper surfaces and are tapered towards their lower ends. The separator may be treated with a wetting agent or the latter may be added to the battery electrolyte or incorporated in the resin dispersion. Fig. 1 shows a separator in which the ribs 28 are tapered as shown in section in Fig. 4. The thin end 30 of the taper is at the upper end of the separator and the ribs may extend the whole length of the separator or terminate short of the upper end as shown in Fig. 1. The ribs may be formed by moulding or by grinding away parts of the sheet material. A large sheet of the resin impregnated material may be ribbed and cut into pieces of the size required for the separators. |
