Baly, E. C. C. (Edward Charles Cyril), b. 1871 · London, Longmans, Green · leaf 314
b is cut away, as shown in the twodiagrams, while the camera tube is securely fastened on to thebarrel a at c. Two lugs, d, d, are screwed on to the top of b,and serve as handles for the rotation of b. The top of a isdivided for a short distance in degrees to enable the rotationof b to be measured.… … Fig. 115, For the vertical motion of the plate the following device isadopted: On the back of the opening in ^ is a long verticalslide running from top to bottom—this is not shown in Schu-manns diagram, but maybe represented by the slotted pieces^, g(see Fig. 115). The sliding piece in these two…
Spectrum analysis
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