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Scientific American, Vol. 20, No. 9 (1869) (1869)

leaf 7

An illustration from Scientific American, Vol. 20, No. 9 (1869), 1869, leaf 7
the rest of sure is communicated to the interior of the spring. The tempt to decry the qualities of others. A description of the the frame being set away from the back of the case, leaving spring is an inch and three-quarters in diameter and is capa- gage and its parts and of the method of testing… … bending the tongue, C, of the sector, Fig. 2, backwards or tor- { It is claimed that the objection made to ordinary disk Fig. 1 shows the face of the gage, and Fig.2 the inside with ward, the leverage is altered and the gage can readily be ad- springs, that after being used for atime they either…

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