Water-power; an outline of the development and application of the energy of flowing water . ^ risesabove the normal limit, the contrary action takes place and J/ TURBINES. closes the gate. The shaft D carries a worm-gear which actson the wheel A, and, through the toothed pinion \\\ on thetoothed gate-stem ]^. The spindle is revolved through thelower bevel-gear, 6, by a small line of shafting branching,at any convenient point, from the main shafting. The shaft Dcarries a friction-coupling, which insures the mechanism against. Fio. i86. breakage when the gate reaches the end of its traverse. The
Water-power; an outline of the development and application of the energy of flowing water . ^ risesabove the normal limit, the contrary action takes place and J/ TURBINES. closes the gate. The shaft D carries a worm-gear which actson the wheel A, and, through the toothed pinion \\\ on thetoothed gate-stem ]^. The spindle is revolved through thelower bevel-gear, 6, by a small line of shafting branching,at any convenient point, from the main shafting. The shaft Dcarries a friction-coupling, which insures the mechanism against. Fio. i86. breakage when the gate reaches the end of its traverse. Theregulator continues in action after the gate has reached itsupper limit, and if the mechanism were rigid it would inevitablybreak. When the wheel is coupled to others, or several wheelsare geared to the same line of shafting, the regulator may con-tinue to act after the gate has reached its lower limit. ^ is arod reaching to the floor above and carrying a hand-wheel by REGULATION. ? 379 which the gate can be raised and lowered by hand; but beforeturning the hand-wheel, the workman places his foot on thehead of the rod E, and operates a disconnecting-coupling whichfrees the gate from the action of the regulator. Fig. 186 is a schematic representation of a governor whichhas received extended application. The upright spindle, whichis hollow^ receives motion from the shaft A driven by a beltand pulley. Within the hollow spindle is a rod firmly attachedto the double friction-cone D. Two hollow friction-cones, Gand //, s
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthydraulicengineering
