Improvements in or relating to the manufacture of rotary valves

Details Improvements in or relating to the manufacture of rotary valves Improvements in or relating to the manufacture of rotary valves

B - Operations, Transporting

24

B

B24B 5/36 (2006.01) B24B 19/02 (2006.01) B62D 5/083 (2006.01)

Patent

CA 2146575

A machine for grinding longitudinal troughs in the edges of grooves of a power steering valve input-shaft (4), the input- shaft being supported for rotation on supports (14, 15), a grinding wheel (30) having a contoured periphery corresponding in cross-section to the cross-section of the trough (5), the grinding wheel being relatively movable towards the input-shaft to some predetermined depth of engagement therewith and to be retracted therefrom and being movable axially relative to the input-shaft to form a longitudinal trough (5) to produce oblique terminations of the trough.

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