| 摘要 |
A machine for lapping bowling balls and, thus, re-rounding, smoothing, and cleaning the balls. The machine is comprised of three concave abrasion blocks with drive motors, adjustable mounting brackets attached to an adjustable support table, a catch basin with filter to separate suspended solids from liquids, and a pump and fluid delivery tube to deliver flushing and/or cleaning liquids. The abrasion blocks are comprised of resilient concave blocks with abrasive sanding disks. The positions of all three abrasion blocks are preferably simultaneously and equally adjusted by small adjustments to the position of a top table relative to the stand that holds the pivotal motor mounts. Ramps on the rotatable table cooperate with the mounts to slightly pivot the motor mounts inward and outward from the ball, changing the orientation and distance of the abrasive blocks relative to each other and, hence, to the ball. When a bowling ball (or other sphere) is received within, and supported by, the independently-turning cutting blocks, the asymmetrical "high" areas of the ball are frictionally moved and abraded by the sanding disks until such areas are removed and the ball is essentially perfectly spherical. Additionally, chips and dents and pollutants such as accumulated lane oil are removed or much reduced.
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