Water-power; an outline of the development and application of the energy of flowing water . - represented by Fig. rock bottom was ever so smooth and level that such a framecould be placed on it and bolted without some work of lc\ellingup. 38cz, no doubt, represents the actual situation morecorrectly. Such frames could never set level without fittingpieces of timber to the rock to form a bed for the sills, orbuilding a foundation of masonr)-. It will be perceived thatthe down-stream i)lanking docs not extend to the sill. It isunderstood that it originally did so, but that, dry rot appear-
Water-power; an outline of the development and application of the energy of flowing water . - represented by Fig. rock bottom was ever so smooth and level that such a framecould be placed on it and bolted without some work of lc\ellingup. 38cz, no doubt, represents the actual situation morecorrectly. Such frames could never set level without fittingpieces of timber to the rock to form a bed for the sills, orbuilding a foundation of masonr)-. It will be perceived thatthe down-stream i)lanking docs not extend to the sill. It isunderstood that it originally did so, but that, dry rot appear- DAMS OF TIMBER AND STONE. 75 ing, a portion of the planking was cut away, to admit the airunder the dam. 38<^ is suggested as a better and strongerarrangement of the framing for the crest of the dam. It isunderstood that the purhns were bolted to the rafters, and it ispresumed that all the members were so connected to the sillsas to prevent- the lifting of the structure in case of an ice-jambelow, such as to obliterate the fall. The lifting effort in that ^OFEET. Fig. 38a.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthydraulicengineering
