Abstract: A bowling pin defined primarily by a main one-piece plastic body part which defines the outside configuration of the pin and has a substantially planar base surface on the lower end thereof. A bore arrangement extends coaxially upwardly within the interior of the main body part and terminates just short of the upper end of the pin. A plug closes off the lower end of the bore arrangement. The closed bore arrangement includes a cylindrical bore of large diameter which is found is the base portion of the pin and projects upwardly to a location substantially at the elevation of the maximum pin diameter, from which a significantly reduced diameter bore projects upwardly to a further bore which is somewhat larger and is located adjacent the upper extremity of the base portion of the pin. A further smaller diameter bore thence projects upwardly through the neck portion of the pin and to the head portion so as to terminate at a wall spaced slightly downwardly from the upper extremity of the pin.

Abstract: A conveyor-separator apparatus having a separator unit slave driven from the conveyor unit by a gear train which employs an idler gear rotatably supported on the separator unit. The idler gear projects from the housing of the separator unit so as to be disposed in meshing engagement with a drive gear associated with the conveyor unit when the two units are joined together. This gear train also employs a drive gear which is in meshing engagement with the idler gear and is coaxially secured relative to the separator belt roller disposed adjacent the lower end of the separation gap. This driven gear is supported on an arm swingable about the axis of the idler gear, which arm can be selectively secured in a desired location. This swinging of the arm causes the axis of the drive gear, and hence the axis of the separator belt roller, to be selectively moved toward or away from the conveyor unit so as to selectively vary the width of the separation gap.