The magnitude of
this undertaking will be appreciated when it is understood that the
tables and descriptive matter for one of these trades alone take up
about 250 pages. Mr. Thompson and the writer are both engineers, but
neither of us was especially familiar with the above trades, and this
work could not have been accomplished in a lifetime without the study of
elementary units with a stop watch.
In the course of this work, Mr. Thompson has developed what are in many
respects the best implements in use, and with his permission some of
them will be described. The blank form or note sheet used by Mr.
Thompson, shown in Fig. 2 (see page 151), contains essentially:
[Transcriber's note -- Figure 2 omitted]
(1) Space for the description of the work and notes in regard to it.
(2) A place for recording the total time of complete operations--that
is, the gross time including all necessary delays, for doing a whole job
or large portions of it.
(3) Lines for setting down the "detail operations, or units" into which
any piece of work may be divided, followed by columns for entering the
averages obtained from the observations.
(4) Squares for recording the readings of the stop watch when observing
the times of these elements. If these squares are filled, additional
records can be entered on the back. The size of the sheets, which should
be of best quality ledger paper, is 8 3/4 inches wide by 7 inches long,
and by folding in the center they can be conveniently carried in the
pocket, or placed in a case (see Fig.
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