Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 51
er considerable pressure must bekept out. For occasional submersion the outer groove is simplydrained outward with a free drain hole. For continuous submersionthis drain hole must be connected to a pipe whose end is clear andlow enough below the liquid to drain. Many constructors prefer to pin… … Fig, 16, Fig. 17. Figs. 14 to 17.—Oil-retaining and dust-excluding devices. Fig. 16 shows an arrangement for sealing at the shaft. A spring-wire ring encircles the felt washer; its pressure will force the feltinto sealing contact. If the washer is laid up from a strip withscarfed ends instead of…
Machine design
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