helical
61helical gear — /hɛlɪkəl ˈgɪə/ (say helikuhl gear) noun a gearwheel in which the teeth are at an angle to the wheel axis and form part of a helix described on the face of the wheel …
62helical scan — A magnetic tape storage method that increases media capacity by laying data out in diagonal strips. Used in video tape recorders …
63helical differential — Virtually all gears in modern cars are cut with a spiral helix angle rather than straight meshing. Straight gears are simpler to manufacture, but are extremely noisy …
64helical spring lock washer — A locking device for threaded fasteners …
65helical teeth — curved gear teeth on the edge of a gearwheel, cut at an angle to its axis …
66helical computed tomography — A detailed picture of areas inside the body. The pictures are created by a computer linked to an x ray machine that scans the body in a spiral path. Also called spiral CT scan …
67helical rack — a rack having teeth set at an oblique angle to the edges. Cf. rack1 (def. 5) …
68Gorlov helical turbine — A.M.Gorlov with his turbine. The Gorlov helical turbine (GHT) is a water turbine evolved from the Darrieus turbine design by altering it to have helical blades/foils. It was patented in a series of patents from September 19, 1995[1] to July 3,… …
69Large Helical Device — Infobox Plasma confinement device name = LHD device type = Heliotron major radius = 3.5–4.1 m minor radius = 0.6 m magnetic field = 3T max pressure = ?? max temp = 2.2 keV? max confinement time = 0.36 s first plasma = 1998 location = Japan |The… …
70Crossed helical gears — are gears that operate on non intersecting, non parallel axes.The term crossed helical gears has superseded the term spiral gears. There is theoretically point contact between the teeth at any instant. They have teeth of the same or different… …
