helicoidal

• Trickum Middle School student Ayesha Murshed, eliminated on "helicoidal"

Gwinnett Daily Post Headlines 2010

The clear quadrangular 400W WT model has a power output of 400W and the helicoidal 1KW WT one will be able to generate 1 KW of power.

Philippe Starck Unveils Two Revolutionair Wind Turbines! | Inhabitat 2010

The pulleys, D D, are channeled, and receive the cable, a a, which serves as a helicoidal saw.

Scientific American Supplement, No. 520, December 19, 1885 Various

As shown in the engraving, the pulley, D, moves the tool, and the pulley, E, causes the revolution of the shaft, n, through a helicoidal gearing, F.

Scientific American Supplement, No. 365, December 30, 1882 Various

His _helicoidal saw_ is, in reality, an endless cable formed by twisting together three steel wires in such a way as to give the spirals quite an elongated pitch.

Scientific American Supplement, No. 520, December 19, 1885 Various

The most interesting application of the helicoidal saw is in the exploitation of quarries.

Scientific American Supplement, No. 520, December 19, 1885 Various

Fig. 7, when once in place form a cylindrical surface provided with 48 helicoidal, dentate channels.

Scientific American Supplement, No. 441, June 14, 1884. Various

The ascending motion, which is controlled by the endless screws, f, and the helicoidal wheels, m, is in this way effected with great regularity.

Scientific American Supplement, No. 520, December 19, 1885 Various

In this case the production of light is chiefly due to the fact that calorific condensation, caused by the use of the helicoidal coil surrounding the curved wire, prevents loss of heat in this conductor.

Scientific American Supplement, No. 561, October 2, 1886 Various

The extremity, v, of the axle of the pulley to the right is threaded, and actuates a helicoidal wheel, E, which transmits motion to the wheel, R, through the intermedium of the vertical shaft, F.

Scientific American Supplement, No. 520, December 19, 1885 Various