Society of Glass Technology · [Sheffield] · leaf 552
wound with 50feet of No. 34, B. & S.gauge nichrome wire,C, the ends being con-nected to terminals, R,conveniently locatedon the outer legs. Therheostat was a glasstube 2 inches in dia-meter and 20 incheslong, with adjustableelectrodes, B, and wasfilled with salt solu-tion, the strength ofwhich,… … Fig. 67. 151. A New Form of Precision Hydrometer. C. W. Foulk(J. Opt. Soc. Amer., 1923,7, 327).—The float, A, wasentirely submerged in the liquid and was anchoredby a fine chain, B, to the rod, C, which was capableof vertical movement. The chain hung in acatenary, being more or less supported by…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
