HEMMING’S UNICYCLE, OR “FLYING YANKEE VELOCIPEDE.”

The single-wheeled velocipede has at length received a palpable body,

and “a local habitation and a name.”

[Illustration]

Richard C. Hemming of New Haven, Conn., invented the machine herewith

represented, two years ago; but has only recently brought it into the

market and applied it to practical purposes. The main wheel has a

double rim, or has two concentric rims, the inner face of the inner

one having a projecting lip for keeping the friction rollers and the

friction driver in place; each of these being correspondingly grooved

on their peripheries. The frame on which the rider sits, sustains these

friction wheels in double parallel arms, on the front one of which is

mounted a double pulley, with belts passing to small pulleys on the

axis of the driving wheel. This double wheel is driven, as seen, by

cranks turned by the hands. The friction of the lower wheel on the

surface of the inner rim of the main wheel, is the immediate means of

propulsion. A small binding wheel, seen between the rider’s legs,

serves to keep the bands or belts tight. The steering is effected

either by inclining the body to one side or the other, or by the foot

impinging on the ground, the stirrups being hung low for this purpose.

By throwing the weight on these stirrups, the binding wheel may be

brought more powerfully down on the belts. Over the rider’s head is

an awning, and there is also a shield in front of his body to keep

the clothes from being soiled by mud and wet. When going forward, the

driving wheel is kept slightly forward of the centre of gravity by the

position of the rider. By this means the power exerted is comparatively

small. Every turn of the crank is equivalent to a rotation of the great

wheel.

Mr. Hemming says that this machine can be manufactured for fifty

dollars, of a weight of only thirty pounds; that it will ascend

steep grades, and that it can be driven on the roads with but little

exertion, at the rate of twenty or even twenty-five miles an hour. This

wheel is of a diameter of from six to eight feet.

Mr. Hemming’s boy of thirteen has one five feet in diameter, the first

manufactured, crude in construction, and heavier than necessary, which

he propels at the rate of a mile in three minutes.

* * * * *

A mechanic of Dubuque, Iowa, has invented a one-wheeled machine, which

he calls a velocycle or velocyde. This velocipede is not ridden upon,

but transports its rider into the position of “walkist.” It is a large

wheel or double wheel, made a unit by a light rim of five feet one inch

in diameter. The operator steps upon the rim and commences to ascend an

endless ladder. It being movable, of course he does not ascend but sets

the wheel in motion. The inventor claims that the effort is not greater

than the force of muscle required in ordinary locomotion, and that by

his arrangement of pulleys, each step gives a complete revolution of

the wheel and is equivalent to a stride of eighteen feet. He claims

that it will ascend steep grades, will run at the rate of twenty

miles an hour, will not weigh over twenty pounds, and that it can be

manufactured for $40.

* * * * *

The single wheeled velocipede was perhaps predicted in Ezekiel i.

15-21. A gentleman in Pittsburg, Pa., claims to have invented one,

which can be propelled by the combined force of five men, who occupy

comfortable seats in the automatic horse. This wheel is ten feet in

diameter, and the inventor thinks it can be driven at the rate of

twenty miles an hour.

* * * * *

A New York mechanic has devised a monocycle or single machine, which

consists of a wheel eight feet in diameter, with a tire six inches

wide, or two narrow tires on its outer edges, with two sets of spokes

connecting with a double centre, which fills the place of a hub, the

two sides of which are two feet and a half apart. The operator is in

the middle, and propels the wheel by an apparatus, in which both his

weight and his muscles are brought into play.

[Illustration]

We present an engraving of an English one-wheeled velocipede. The feet

are placed on short stilts, connected with the cranks, one on either

side of the rim, while the rider sits upon a steel spring saddle over

the whole wheel. The inventor modestly limits the diameter of the wheel

to twelve feet, and the number of revolutions to fifty per minute.

Twenty-five miles per hour is the speed expected to be reached. The

riders of this machine, without the ability to overcome the laws of

gravity, would be very likely to get broken bones and noses. It is not

likely to come into general use.

* * * * *

Captain Du Boisson, a Frenchman and captain of Prince Napoleon’s yacht,

“Jerome Napoleon,” has invented a velocipede which runs upon water

with great facility. It is composed of two parallel tubes of cast

iron, cigar-shaped, connected by iron cross-pieces. In the centre is

a propelling wheel, covered by a house or drum, on the top of which

the person using the vessel sits comfortably in a sort of saddle, with

stirrups. By means of these stirrups and a hand crank upon each side,

he gives the wheel its motion, precisely as it is given to a velocipede

on shore. The novel craft is easily propelled at the rate of six miles

an hour.

* * * * *

A gentleman of Poughkeepsie, N. Y., has invented and uses an Ice

Velocipede, which he propels with astonishing rapidity. The frame of

this velocipede is built like those which are commonly used in this

city. It has but one wheel, steered with a bar as in the land machine,

but armed with sharp points to prevent its slipping. Instead of the

wheel behind are two sharp runners, like those attached to the ice

boats.

* * * * *

[Illustration]

A Steam Velocipede has also been invented, from which great speed

is expected. The cylinders and their attachments to the two driving

wheels are not shown. They are placed vertically in front of the

boiler, between it and the seat, and connect with cranks on the shaft

of the driving wheels. The engraving shows the position of the boiler

relatively to the other parts of the machine. The engine is a direct

acting compound engine of two cylinders, each cylinder two and a half

inches diameter, and five inches stroke. The steering gear consists of

an endless chain over a grooved wheel on the engine shaft, and passing

over a corresponding wheel fixed between the forked shaft just over

the front. The latter grooved wheel is a wide one, and over it passes

another chain. This latter chain works round the boss of the front

wheel. This arrangement gives power to the front wheel, so that in

turning a corner, this wheel takes a wider sweep than the two driving

wheels, which go first. In travelling on a straight road (backwards)

the machine is turned to either side by turning the steering wheel to

the opposite side. The boiler is a vertical one, with four tubes, one

and a half inches internal diameter, hanging down by the side of the

fire-box. The fire-grate is cast with four holes in it to receive the

bottom ends of the tubes so as to hold them firmly. Height of boiler,

two feet six inches; height of fire-box, fifteen inches; diameter

of fire-box, eleven inches; diameter of boiler, fourteen inches.

The fire-box and tubes are copper, pressure two hundred pounds; but

twenty-five pounds of steam will be equal to a velocipede propelled by

the feet.

* * * * *

Philadelphia has recently produced a velocipede of an entirely new

style. There are but two wheels, the seat sitting quite low between

them. The novelty consists in a cog attached to the guiding-post, by

means of which the rear wheel is made to follow directly in the track

of the forward wheel. No matter how short the turn, both wheels make it

at the same time, and the seat always remains parallel with the driving

wheel. In other machines there is no guide to the rear wheel, and

consequently the machine cannot be turned so readily when a collision

is threatened. The new machine, which is called the “Keystone,” in

honor of its native State, is substantially built, and so far as it has

been tested in the riding school, is pronounced a success.

There is an ingenious gentleman in Cincinnati, who is at work

constructing a velocipede to be propelled by a spring, on the principle

of a watch. After winding it up, he calculates that it will move two

miles before it will require winding.

A gentleman in Albany has arranged a velocipede to run on railroad

tracks. The wheels have flanges to them, so that they cannot leave

the rails. The flanges are so arranged as to be removed when occasion

requires, so as to make the machine available on ordinary roads. The

inventor claims fifty miles an hour.

An expert velocipedestrian in the West, has had rubber tires put upon

the wheels of his vehicle; and finds by their use, he can ride in

winter over snow and ice without slipping, and that in summer he is

much relieved of the jar from roughnesses of roads.

The vast majority of the new velocipedes of which we hear daily, prove

total failures on trial. Most of their inventors proceed upon abstract

principles, and fall into absurdities, from which previous practical

knowledge would have saved them.

[Illustration]

The Velocipede: Its History, Varieties, and Practice · 第 37 / 44 题