Question: 8 - 7 8 ( modified ) The braking mechanism consists of two pinned arms ( CAD & DBF ) and a square - threaded
modified
The braking mechanism consists of two pinned arms CAD & DBF and a squarethreaded screw with opposite threading righthand and lefthand at and When a moment is applied to the screw in a x direction from the RHR or CW when looking at the head the screw draws the two arms together causing enough friction at
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