Srientific American. THE ADVOCATE OF INDUSTRY, AND JOURNAL OF SCIBNTIFIC, MECHANICAL AND OTHER IMPROVEMENTS. VOLUME VIII.) NEW-YORK, JULY 2, 1853. - (NUMBER 42. IMPROVED DRAWING REGULATOR.---Fig. 1. … The annexed engravings are a side eleva- tion (figure 1) and the trumpet (figure 2) of an fective length of the lever, E, is shortened the trumpet shaft, T. The moving of the trumpet, M, either way, by turning the shaft, correspondingly, and lengthened in the same improved drawing regulator for…
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