Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 379
1531C. SECTION LINERS.—Anopen triangle with a stop slide pivotedto links with the spacing adjusted bya stop pin and cam sector. … 1531J. EIDOGRAPH.—An instrument of precisionin reproducing drawings,reduced or enlarged. Sim-ultaneous motions are trans-mitted from the tracer tothe pencil through the mo-tion of pulleys on the cen-tral beam operated by asteel band. DRAUGHTING DEVICES. 369
Mechanical movements
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