Production of neck ring blanks on a Ward No. 7 turret lathe
GT V02 1961 128-150
A quick, efficient and accurate method of producing neck ring blanks is by using a previously machined cast-iron stick, the two halves of which have been milled or shaped on the adjoining faces, these usually being of the 'tongue and groove' or 'dovetail' form. The stick is also preturned to within 0.020 in of the finished size ensuring that the two halves are equal. The neck rings are completely machined, except for the jinal shape required on the glass container, and the machine can bejtted with either a 49 in or 54 in bore spindle, depending upon the outside diameter of the ring. For neck rings over the diameter of the spindle, a length of stick to make the rings in pairs is used.
D. W. Hadley, H. W. Ward & Co. Ltd., Birmingham