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A kind of gear in which the two wheels working together lie in different planes, and have their teeth cut at right angles to the surfaces of two cones whose apices coincide with the point where the axes of the wheels would meet.

A toothed wheel, or cogwheel; as, a spur gear, or a bevel gear; also, toothed wheels, collectively.

mitered; also, a square with an arm adjustable to any angle. -- Miter wheels, a pair of bevel gears, of equal diameter, adapted for working together, usually with their axes at right angles.

le curvature, or a twisted curve. See Plane curve, under Curve. -- Skew gearing, or Skew bevel gearing (Mach.), toothed gearing, generally resembling bevel gearing, for connecting two shafts that are neither parallel nor intersecting, and in which the teeth slant across the faces of the gears. -- Skew surface (Geom.)…

g, a kind of gearing sometimes used in light machinery, in which spiral gears, instead of bevel gears, are used to transmit motion between shafts that are not parallel. -- Spiral operculum, an operculum whih has spiral lines of growth. -- Spiral shell, any shell in which the whorls form a spiral or helix. -- Spiral…