Centerless gaging apparatus for checking the concentricity and s

Details Centerless gaging apparatus for checking the concentricity and s Centerless gaging apparatus for checking the concentricity and s

1993-07-29

1995-05-30

Fulton, Christopher W.

Geometrical instruments

Gauge

With support for gauged article

33549, G01B 520

Patent

active

054190568

ABSTRACT:
A cylindrical portion of the tool or workpiece is rotatably supported by two pairs of spherical rollers rotatably carried by two pairs of holders mounted on first and second upright supports secured to a bed. The second support is adjustable to change the spacing between the supports. The holders have screw threads for adjusting the spacing between the rollers. Alternatively, separate feed screws are provided for the holders. A drive belt is looped around the workpiece and around a drive pulley rotatably mounted on a movable carriage biased by a spring to tighten the belt. A knob is provided to rotate the drive pulley. The flights of the belt are pinched toward each other by a pair of guide pulleys and by a pair of rollers adjacent the drive pulley, whereby the upper loop of the belt is kept open and close to the location of the workpiece when it is removed. The carriage may be latched in a belt-loosening position by a swingable latching arm. Optionally, the workpiece may be rotatably supported by two pairs of blades having inclined edges in a V-shaped formation. The blades have smoothly rounded edges for engaging the workpiece with point contacts.

REFERENCES:
patent: 2616068 (1952-10-01), McDonald
patent: 3274693 (1966-09-01), Witzke
patent: 4674193 (1987-06-01), Wertepny et al.
patent: 4679330 (1987-07-01), Williams
patent: 4977682 (1990-12-01), Allen, III
patent: 5044088 (1991-09-01), Peucker
patent: 5117081 (1992-05-01), Bagdal
patent: 5182865 (1993-02-01), Greenslade

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