Lawn bowling ballsJames, Crook
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$%^&*AU2012216566B220160505.pdf### 12 ABSTRACT Precision manufacturing of a lawn bowling ball (1000') involves steps of securing a blank (1000) by its single spigot (100) in a primary chuck (200), machining a primary portion of the blank (1000) while the blank (1000) is secured by...
Precision manufacture of lawn bowling ballsWALTER BENJAMIN JACOBS
1\n1/510Securing a blank by its singlespigot in a. primary chuck20Machining a primary portionof the blank while secured30Transferring blank to analigned secondary chuck40Machining remainder ofblank to complete bowlFIG 1JACOBS, WALTER BENJAMIN...
A method for forming a tablet suitable for preparing a blank for a lawn bowling ball having multiple distinct colours or finishes, comprises adding raw materials to a single cavity compression mould, divided between separate compartments temporary defined within the single cavity compression mould by ...
PRECISION MANUFACTURE OF LAWN BOWLING BALLSJACOBS WALTER BENJAMIN
A method of precision machining a lawn bowling ball from a generally spheroid blank 1000, comprises the steps of securing the blank 1000 by its spigot in a primary chuck 210, machining a primary portion of the blank 1000 while the blank 1000 is secured by the primary chuck 210, transferring...
A lawn bowling ball 1000 has a smoothly curved surface 10, wherein at least part of the surface are formed, in sunken relief, a pattern of dimples, depressions or indentations 100. The dimples are preferably concave and may be substantially spheroid or have a circular periphery. The dimples...
IMPROVED LAWN BOWLING BALLSJACOBS WALTER BENJAMIN