On these and other grounds it did not appear that much good purpose would
have been served by describing the particular apparatus which at that
time would have been offered to prospective purchasers. It seemed best
that the latter should estimate the value and trustworthiness of
apparatus by studying a section of it in the light of the general
principles of construction of a satisfactory generator as enunciated in
the book. While the position thus taken by the authors in 1903 would
still not be incorrect, it has been represented to them that it would
scarcely be inconsistent with it to give brief descriptions of some of
the generators which are now being sold in Great Britain and a few other
countries. Six more years' experience in the design and manufacture of
acetylene plant has enabled the older firms of manufacturers to fix upon
certain standard patterns for their apparatus, and it may confidently be
anticipated that many of these will survive a longer period. Faulty
devices and designs have been weeded out, and there are lessons of the
past as well as theoretical considerations to guide the inventor of a new
type of generator. On those grounds, therefore, an attempt has now been
made to give brief descriptions, with sectional views, of a number of the
generators now on the market in Great Britain.
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