Abstract
THIS book is an attempt to give a fairly cpm-prehensive view of modern engineering workshop practice, and includes sections dealing with general methods and machines, and others dealing with special processes and machines, such as turret lathes, spiral milling, grinding, hardening, tempering, annealing, autogenous and thermit welding, and soldering and brazing. The author is quite at home in these branches. The descriptions are clear, and whilst many of the illustrations are half-tone reproductions of photographs of machines and appliances, there is a sufficient number of line drawings to enable the reader to understand the construction. The author is not so happy in chap, 1., which deals with materials. Thus, on p. 3 we read, under the paragraph heading “Malleable-iron Castings”: “If an iron casting, made out of the right kind of pig iron, be heated to a red heat in an iron box surrounded by some carbonaceous material for from 12 to 24 hours, the surface of the material becomes converted into a form of steel. The casting then has lost its extreme brittleness, and becomes more or less malleable. The castings are generally embedded in red hæmatite.” In view of this statement, it is of interest to note that later on (p. 229), in dealing with case-hardening, the author shows that his knowledge is sound, as regards both the process and the changes which take place during the progress of case-hardening. Despite blemishes of this kind, the young engineering student will find much that is instructive and of interest in the book.
Modern Engineering Workshop Practice: A Text-book for the Use of Engineering Students, Apprentices, and Engineers engaged in Practical Work.
Herbert
Thompson
By. (Griffin's Scientific Text-books.) Pp. xi + 328. (London: Charles Griffin and Co., Ltd., 1919.) Price 9s. net.
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Modern Engineering Workshop Practice: A Text-book for the Use of Engineering Students, Apprentices, and Engineers engaged in Practical Work . Nature 104, 352 (1919). https://doi.org/10.1038/104352b0
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DOI: https://doi.org/10.1038/104352b0