21st December 1956, Page 60
21st December 1956
Page 60
Page 60, 21st December 1956
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Centrifugal Clutch In Hydraulic Coupling
H YDR AULIC couplings are often 1 1 provided with some form of straight-through lock, and a device of this nature forms the subject of patent No. 760,249 (Self-Changing Gears,......