VARIABLE RATIO BRAKE A LEVER mechanism whi 1-1 increasing mechanical
22nd December 1961, Page 50
22nd December 1961
Page 50

Page 50, 22nd December 1961
— VARIABLE RATIO BRAKE A LEVER mechanism whi 1-1 increasing mechanical
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with movement is shown in ix 876,498. It is i4ended mainly the linkage of a foot-brake. (Th arid D. Rogan, 25 AIexandri Sandringham, Johannesburg, Africa.)
The pedal is attached to a which is pivoted about the point lever pushes against a roller (3) to the brake rod M.
At the start of the stroke, the forces the roller over a hum) action which takes up slack Thereafter, the slope (6) is shai to give a progressively diminish The ratio may rise again at tht tip (7) to permit a pumping act used with hydraulic brakes.