Harper's boating book for boys; a guide to motor boating, sailing, canoeing and rowing . motor over as large anarea as possible. Between these two, to brace them apart,aft of the engine fit another cross-piece. Fasten all thesepieces to the bottom boards of the skiff with large gal-vanized-iron wire nails, or bolts driven up through the bot-tom planking of the skiff. To this bed the engine is boltedwith lag-screws. Stuffing-box and Shaft-Log There must be some sort of a water-tight arrangementwhere the propeller-shaft goes out through the boats bot-tom. This is called the stuffing-box (Figs. 9
Harper's boating book for boys; a guide to motor boating, sailing, canoeing and rowing . motor over as large anarea as possible. Between these two, to brace them apart,aft of the engine fit another cross-piece. Fasten all thesepieces to the bottom boards of the skiff with large gal-vanized-iron wire nails, or bolts driven up through the bot-tom planking of the skiff. To this bed the engine is boltedwith lag-screws. Stuffing-box and Shaft-Log There must be some sort of a water-tight arrangementwhere the propeller-shaft goes out through the boats bot-tom. This is called the stuffing-box (Figs. 9 and 10). Itis a brass casting that the shaft goes through, with a holebored out larger than the shaft, so that lamp-wicking orhemp packing dipped in oil and graphite can be tucked inaround the shaft and squeezed up around it tightly enoughto keep out the water, while the graphite and oil allow theshaft to turn freely against the packing. By boring ahole through a block of wood big enough at its end to havethis stuffing-box bolted to it over the hole, and by fitting 244 suck- Fig* t. Fig* 4
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License: Licensed
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Keywords: ., bookcentury1900, bookdecade1910, bookidharpersboati, bookyear1912
