of the | mentioned the fact that it is difficult to measure between such shaft at the end from which ib Was started, we make a mark | lines when they are long, and tha*, as the line shaft is moved | UPOn our piece of wood the line C, in Fig. 6, 15 inches from during adjustment, the plumb lines sway… … the same, the forms of the targets being varied to suit the suitable to the general line of the shafts. He may it is true height so that, the gauge (shown in Fig. 6) being applied as | conditions, The process only requires that the faced edges first test the whole line of shaft, and make a note of…
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