Method for rebuilding pinsetter pulley assemblies
OwnerAlbert R. Trudeauinventor
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Abstract
The specification discloses a novel method for rebuilding pinsetter pulley assemblies of the type having a compound contoured pulley face and a ball bearing at each end of the pulley for support. Depending on whether the outer surface is worn, or one or both of the bushing bores is worn, the method involves cutting a taper on the outer surface in a suitable manner and/or reboring one or both bushing bores and inserting a bushing sleeve and new bushing therein.
Claims17
A method of rebuilding pinsetter pulley assemblies of the type having a compound pulley face consisting of a convex surface and a flat surface, and having a worn convex surface only, said method including the steps of removing said worn convex surface, machining a new tapered surface in place of said convex surface, applying a heat resistant enamel coating to said tapered surface and curing said coating.
A method of rebuilding pinsetter pulley assemblies of the type having a compound pulley face and wherein said pulley assembly is supported for rotation on ball bearings with said pulley assembly only having one of two bearing bores worn, said method including the steps of locating said pulley assembly for reboring of said worn bearing bore from said pulley face, refinishing said worn bore to a larger predetermined diameter, inserting by way of a press fit a bearing bushing of a desired size, and reinserting said old bearing or a new bearing into said bearing bushing, thereby accomplishing the rebuilding of said pulley assembly.
Dependencies are inferred from the claim text.