The Economics of the Annealing Process

JSGT 1927 V11 T030-T037 

In recent years, a considerable amount of work has been done, and published, on the theory of annealing. The work of Twyman, English & Turner, Adams & Williamson, and others has indicated, on general lines, the broad principles of annealing, but there has not been much discussion of the practical details of the problem. The United Glass Bottle Manufacturers, Ltd., in common, I expect, with most glass manufacturers, has been engaged on the study of the annealing process for some years. Mr Moorshead, in his Presidential Address of 1925, referred briefly, in passing, to the direction in which our work has led us, which was a type of humorously so-called heatless lehr, and I propose, as briefly as I can, to give some account of the experiments on which our engineering department and research laboratories have been engaged for the past few years. In doing so, I will try to avoid, so far as possible, the theoretical questions involved and confine myself to the more practical considerations.

 E. A. Coad-Pryor