It is a fact well known to the editors of
scientific and technical journals, that there are a series
of questions to which answers are continually desired by new
subscribers, no matter how often these questions may have
been previously discussed.
To give a reply to every one, in
the columns of the journal, would be an injustice to other
readers; to reply to each by letter would be an endless
task, and to ignore them entirely would be inadmissible.
the majority of these questions may be fully and thoroughly
answered once for all in a few pages of type, and this is
the end and aim of the present work, which has been
published at a price which places it within the reach of
The utmost care has been taken to give none but trustworthy
directions and recipes.
Most persons who have occasion to
consult an ordinary book of recipes must be painfully aware
of the fact that accuracy seems to be the last quality
sought for by the compilers and indeed by most of those who
contribute recipes to our technical journals.
With them complexity is in more favor than efficiency, and
we therefore see long lists of ingredients strung out one
after the other, most of them being useless and some being
All this we have tried to avoid, and we feel
confident that the amateur and those whose skill and
experience is not very great will find here an efficient
Brazing and Soldering
The term soldering is generally applied when
fusible alloys of lead and tin are employed. When hard
metals, such as copper, brass or silver are used, the term
brazing (derived from brass) is more appropriate.
In uniting tin, copper, brass, etc., with
any of the soft solders, a copper soldering-iron is
generally used. This tool and the manner of using it are too
well known to need description.
In many cases, however, the work may be done
more neatly without the soldering-iron, by filing or turning
the joints so that they fit closely, moistening them with
soldering fluid, placing a piece of smooth tin-foil between
them, tying them together with binding wire and heating the
whole in a lamp or fire till the tin-foil melts.
We have often joined pieces of brass in this
way so that the joints were quite invisible. Indeed, with
good soft solder almost all work may be done over a lamp
without the use of a soldering-iron.
New York, October, 1878