Abstract
This paper describes a new method introduced into shipbuilding for fabricating steel plates.
The work in the mould loft, dealing with the training of men, drawing templates to a 1:10 scale, and the system of photographing these drawings is explained. The use of the resultant photographic negative in the automatic flame cutting machine and optical marking projectors is dealt with and the apparatus used is described. The method controlling this new system, with a background of production engineering methods, the capital costs and the economics of the work, including factual production speeds, are given and fully described. Experiments made to ascertain the accuracy of the small scale work are explained, and the results shown.
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