G - Physics – 01 – B
Patent
G - Physics
01
B
G01B 13/18 (2006.01) B62D 5/06 (2006.01)
Patent
CA 2101744
An apparatus for measuring and recording the angular posi- tion of the edges of axially extending grooves (18) disposed on an inside cylindrical bore surface or outside cylindrical surface of a workpiece (10) characterized in that the apparatus includes a shoe (82), pressed into intimate contact with the surface over a zone (85) of the shoe, the zone (85) incorporating an orifice (84), extending away from the zone (85) of intimate contact to a plenum chamber (88, 97), to which fluid is supplied relative rotation between the workpiece (10) and the shoe (82) being produced, a measuring de- vice (not shown) to measure the degree of restriction to flow of fluid from the orifice (84) as the edges traverse the orifice (84) during rel- ative rotation, an angular positional measurement device (not shown) to measure relative rotation, such that relative angular posi- tions of the workpiece are recorded at each relative rotational posi- tion corresponding to a predetermined degree of restriction of the orifice (84) as successive edges of the grooves traverse the orifice (84).
A. E. Bishop & Associates Pty Limited
Bereskin & Parr
LandOfFree
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