Flumes and fluming . er from beingsplit, broken, and battered on the ends or otherwise injured as muchas when shipped in loose board form. Figure 7 shows the methodmost commonly used in brailing and accoutring material, and a formof clamp. PLANING MILLS SHOULD BE LOCATED AT LOWER END OF FLUME. As a general proposition the planing of sawed lumber which it isnecessary to transport in a flume should be done only after the flum-ing process is completed, since fluming lumber after it is planed usuallyresults in more or less discoloration of the surface, which is also liableto be marred in transit,
Flumes and fluming . er from beingsplit, broken, and battered on the ends or otherwise injured as muchas when shipped in loose board form. Figure 7 shows the methodmost commonly used in brailing and accoutring material, and a formof clamp. PLANING MILLS SHOULD BE LOCATED AT LOWER END OF FLUME. As a general proposition the planing of sawed lumber which it isnecessary to transport in a flume should be done only after the flum-ing process is completed, since fluming lumber after it is planed usuallyresults in more or less discoloration of the surface, which is also liableto be marred in transit, thus injuring its sale value. SIZE AND CARRYING CAPACITY OF FLUMES FOR DIFFERENT CLASSES OF MATERIAL. The most advisable size of a flume for successfully transportingdifferent classes of material depends on such factors as the grade,volume of water available, length of flume, etc. The class of mate-rial to be handled is always the principal factor to be considered, and 28 BCLLETIX 87, U. S. DEPARTMENT OF FLUMES AND FLUMING. 29 upon this should depend largely the decision of what type or size offlume should be constructed. The capacity of a 24-inch V-shapedflume 10 miles in length, operated on a grade that was neither veryflat nor exceptionally steep, with plenty of water, has been demon-strated as being capable of handling 25,000,000 feet b. m. of railroadcrossties and lumber per annum, under especially favorable conditions. For handling small material, such as railroad crossties, cordwood,mining stulls or props, and loose lumber, a 30-inch V-shaped flume(inside measurement) will usually be found of sufficient capacity formost any requirement, provided the grade is neither too flat nor toosteep. Where either of these exceptions obtain, the size of theflume should preferably be increased to 36 to 40 inches. For a log flume nothing less than a 36-inch V-shaped flume shouldbe built, and a 40 to 60 inch V would be preferable, even for medium-sized logs, if there is a
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1914
