Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 78
enough for the legs to be inserted. Any weakening of these braces was taken care of by bracing of a temporary na- ture, the details of which differed according to the place. A J method sometimes used is shown i i( 9 1 [) i \ in Fig. 2. The first frame, consisting 1 \ of a cap and legs, was set up 1… … Fig. 2. tions as low as possible. The ground was so bad that we were never able to see the footing of the legs, and even in the shaft Fig. 3. from which we started the sand boiled so seriously that boxes had to be used in which to set the legs.
Engineering
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