| 摘要 |
397,944. Balls. ST. MUNGO MANUFACTURING CO., Ltd., SWABEY, R. C., and BOTTOMLEY, G., 187, Broomloan Road, Glasgow. March 12, 1932, No. 7397. [Class 132 (ii).] A golf or other playing ball is provided with a mobile central core comprising a solution of approximately 14À5 per cent of concentrated size powder in approximately 85À5 per cent of water, by weight. Zinc oxide or other powder may be added to the solution to vary the specific gravity. The solution is enclosed in an elastic envelope, which in turn may be enclosed in a second envelope, the closures of the two envelopes being diametrically opposite. The ball is completed in the usual manner.
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