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A vertical iron bolt, by which the forward axle and wheels of a vehicle or the trucks of a railroad car are connected with the other parts.

balance. Universal lever, a machine formed by a combination of a lever with the wheel and axle, in such a manner as to convert the reciprocating motion of the lever into a continued rectilinear motion of some body to which the power is applied.

The detachable fore part of a gun carriage, consisting of two wheels, an axle, and a shaft to which the horses are attached. On top is an ammunition box upon which the cannoneers sit.

A pin used to prevent the wheel of a vehicle from sliding off the axletree.

owers, certain simple instruments, such as the lever and its modifications (the wheel and axle and the pulley), the inclined plane with its modifications (the screw and the wedge), which convert a small force acting throught a great space into a great force acting through a small space, or vice versa, and are used sepa…

A stiff, long saw, guided at the ends but not stretched in a gate. Muley axle (Railroad), a car axle without collars at the outer ends of the journals. Forney.

The block in the center of a wheel, from which the spokes radiate, and through which the axle passes; -- called also hub or hob.

The wheel which, together with the axle, forms the axis in peritrochio, which see under Axis.

een removed; as, specifically: (a) A carriage pole, a wooden bar extending from the front axle of a carriage between the wheel horses, by which the carriage is guided and held back. (b) A flag pole, a pole on which a flag is supported. (c) A Maypole. See Maypole. (d) A barber's pole, a pole painted in stripes, used as…

The pole or rod which connects the hind axle with the forward bolster of a wagon.

To cause to turn round or revolve, as a wheel around an axle.

-- Running fire, a constant fire of musketry or cannon. -- Running gear, the wheels and axles of a vehicle, and their attachments, in distinction from the body; all the working parts of a locomotive or other machine, in distinction from the framework. -- Running hand, a style of rapid writing in which the letters ar…

Armed scythes, as a chariot. Chariots scythed, On thundering axles rolled. Glover.

A metallic strengthening band or thimble on the wooden arm of an axle. Knight.

A bolt by which the body of a cart is fastened to the axle. [Local, U.S.]

Gentle in action or motion; easy. On her soft axle, white she paces even, And bears thee soft with the smooth air along. Milton.

A bar attached to the hounds, in the rear of the front axle, so as to slide on the reach as the axle is swung in turning the vehicle.

ia. The carriage box rests on two long, springy poles which run from the fore to the hind axletree. When snow falls, the wheels are taken off, and the body is mounted on a sledge.

coal mine. Raymond. Thill coupling, a device for connecting the thill of a vehicle to the axle.

l. Trailing arbutus. (Bot.) See under Arbutus. -- Trailing spring, a spring fixed in the axle box of the trailing wheels of a locomotive engine, and so placed as to assist in deadening any shock which may occur. Weale. -- Trailing wheel, a hind wheel of a locomotive when it is not a driving wheel; also, one of the hi…