Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1261
ia/ Peceptac/eCarcf /io/cferPheostat Cba/n \ Operc7t/np Mechan/sm]L/^/it/n^ Si/v/tc/yType OB Pormy^ Stv/tch Pecorcfinj^ l^attmeterJVattmeter Pe>s/stance Fig. 556construction of fig. 547 for small capacity The scheme of electrical connections for panel of Pig,547 is shown in Pig. 558. B. C.…
![An illustration from The Mason Machine Works, Taunton, Massachusetts, U.S.A., inventors and builders of cotton machinery : Founded 1842 ; Incorporated 1873 ; [Catalogue] (1898)](https://img.insideoutlibrary.com/img/200/ia-masonmachinework00maso-127-44.webp)
