e vibrates up and down hundreds of times before coming to rest, though it must slightly flex at their two end necks all of the eight elastic guide rods. For all practical purposes the motion is perfectly frictionless. The drag is measured with a bell crank whose axle is supported on two elastic… … Fig. o.—Wind balance lift mechanism. parallel to the wind and anchored, 5 inches to either side of the lift pipe axis, to anchor lugs i, cast on top of the floating pyramid, as shown in figures 5 and 6. These rods prevent yawing of the pyramid, without restraining it across stream, and allow it to…
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