own voltage is 50, and the frequency of the alternations ing teeth, as shown in Fig. 2, and this frame is placed 5,000 per minute. A rheostat is used for governing the separately in Fig. 3. Fig. 1 is a horizontal section in a separate pocket made of any suitable material, the showing the frame and… … minute drops. ward on the shank to A modification of the process directs that the central WELLS’ DIEFENBACH’S SAFETY POCKET. effect the desired ad- ring be covered by its own cover glass. On this the justment of the jaws. drop of glycerine is to be put, and this is to hold the As will be seen, the…
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![An illustration from [Abercrombie & Fitch Co., New York : Christmas Catalogue, 1916] (1916)](https://img.insideoutlibrary.com/img/200/ia-abercrombiefitch00aber_0-15-26.webp)
