3rd December 1929, Page 74
3rd December 1929
Page 74
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Page 74, 3rd December 1929
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A Self-energizing Brake
A Resume of Recently Published Patent Specifications P ATENT No. 317,932, by H. P. Maxted, and Alford and Alder (Engineers) Ltd., of Walworth, S.E., describes a brake which is......