▪ I. coning, vbl. n.
(ˈkəʊnɪŋ)
[f. cone n.1 or v.1 + -ing1.]
The making of a cone-shaped tread (of a wheel); the condition of being coned (see coned ppl. a. 2).
| 1837 W. B. Adams Carriages 297 The coning of the wheels must also act like a wedge... This, together with the coning of the wheels, would make a nearly perfect railway carriage. 1906 Times 12 Sept. (Engin. Suppl.) 291/2 The coning of the wheels and the slight inward cant of the rails. 1960 Horner & Abbey Dict. Terms Mech. Engin. ii. 85 Coning, the turning of the taper on the diameters of railway wheels and crane and turntable rollers. |
2. Aeronaut. The action of the rotor blades of a helicopter slanting upwards when in motion so as to produce a cone-shaped pattern of rotation; hence coning angle: the angle at which the rotor blades rise in coning.
| 1931 J. de la Cierva Wings of Tomorrow vii. 102, I supposed that it was preferable to keep the blades from coning, so that they would remain in a horizontal position while in flight. 1944 H. F. Gregory Anything a Horse can Do 148 The angle the blade [of the rotor] makes with the horizontal is known as the coning angle. 1955 Liptrot & Woods Rotorcraft v. 49 The physical effect of coning is to move all elements of the blade nearer to the axis of rotation. |
▪ II. coning
obs. f. cony.