4th February 1955, Page 78
4th February 1955
Page 78
Page 78, 4th February 1955
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A Self-energizing Brake
1 - 1 A BRAKE that uses some of the drum energy to intensify its action forms the subject of patent No. 720,257 (Kelsey-Hayes Wheel Co., Detroit, Michigan, U.S.A.). Two small......