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Helical   Listen
adjective
Helical  adj.  Of or pertaining to, or in the form of, a helix; spiral; as, a helical staircase; a helical spring.






Collaborative International Dictionary of English 0.48








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"Helical" Quotes from Famous Books



... ring-type emergencies are now all adjusted so that they normally run concentric with the shaft, but weighted so that the center of gravity is slightly displaced from the center. The centrifugal strain due to this is balanced by helical springs. But when the speed increases the centrifugal force moves the ring into an eccentric position, when it strikes a trigger and releases a weight which, falling, closes the throttle and shuts off the ...
— Steam Turbines - A Book of Instruction for the Adjustment and Operation of - the Principal Types of this Class of Prime Movers • Hubert E. Collins

... OF TOOTHED GEAR.—Design for a pair of bevel wheels in gear. Construction of wooden patterns for a pair of beveled wheels. Involute and Helical Teeth. Contrivances for obtaining differential Movements. Rules ...
— Scientific American, Vol.22, No. 1, January 1, 1870 • Various

... Socket Joints. Tripping Devices. Anchor Bolt. Lazy Tongs. Disk Shears. Wabble Saw. Crank Motion by a Slotted Yoke. Continuous Feed by Motion of a Lever. Crank Motion. Ratchet Head. Bench Clamp. Helico-volute Spring. Double helico-volute. Helical Spring. Single Volute Helix Spring. Flat Spiral, or Convolute. Eccentric Rod and Strap. Anti-dead ...
— Practical Mechanics for Boys • J. S. Zerbe

... mode of working is convenient in many cases; but a more important, because a more widely applicable, method in the future will be that in which the wind-motor not only lifts the water, but scatters it around in the same operation. Long helical-shaped screws, horizontally fixed between uprights or set on a swivel on a single high tower, can be used for loading the breeze with a finely divided shower of water and thus projecting the moisture to very long distances. A windmill of the ordinary pattern, as used for gardens, may ...
— Twentieth Century Inventions - A Forecast • George Sutherland

... shells, especially those of the Common Snail (Helix aspersa), who is so common under the stone-heaps and in the crevices of the little unmortared walls that support our terraces. In this species the spiral is wide open, so that the Osmia, penetrating as far down as the helical passage permits, finds, immediately above the point which is too narrow to pass, the space necessary for the cell of a female. This cell is succeeded by others, wider still, always for females, arranged in a line in the same way as in a straight tube. In the last whorl ...
— The Wonders of Instinct • J. H. Fabre

... are cast iron, fitted with gun-metal steps. The wheels are made of forged iron, with steel tires and axles. The carriage is provided with strong oak buffers, planks, and spring buffers; the drawbars also have helical compression springs of the usual type. The ladle is built up of 1/2 in. wrought-iron plates, butt jointed, and double riveted butt straps. The trunnions and flange couplings are of cast steel. The tipping gear, ...
— Scientific American Supplement, Vol. XXI., No. 531, March 6, 1886 • Various



Words linked to "Helical" :   voluted, spiral, turbinate, volute, whorled, coiled



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