THE TRICYCLE.

The generic tricycle, or three-wheeled velocipede, as used abroad, is

not likely to meet with general favor in this country.

In its steering arrangements and mode of propulsion, its construction

is similar to that of the bicycle. The rear wheels are large and light;

the fore wheel is smaller, and serves to guide the machine, being acted

upon by means of the steering bar or handle, which causes it to bend

in the direction indicated by the rider. The pedals are attached to

the front wheel, and are shaped like slippers, which facilitates the

movement of the legs, and at the same time admits of the feet being

disengaged simultaneously. The movement required to propel this machine

is a natural one, does not produce unusual fatigue, and is analogous to

that of walking.

The larger three-wheeled velocipedes have a lever which follows the

line of the eccentrics attached to the pedals, and fits on to the

axles. By assisting the movement of this lever, the speed of the

vehicle is considerably increased, and a simple pressure against it

checks the rotary motion of the wheel, and stops the progress of the

machine. This lever is, in fact, both a means of impulsion and a brake.

As this vehicle is chiefly patronized by the fair sex, the seat is more

commodious than that of the bicycle; having sides and back of wicker,

and a horse-hair cushion.

The tricycle is simply a hack, while the bicycle is a blooded horse

that fully demonstrates the “poetry of motion.” The tricycle is easier

to guide, and safer to ride than the two-wheeled machine; there is

however more friction, and its speed is much less rapid. It has, thus

far, been found impossible to construct a three-wheeler with the pedal

method of propulsion, that could compete with the bicycle in speed or

pleasure of driving. Large wheels are necessary for speed. If a guiding

wheel be applied to a tricycle of this kind large enough to run rapidly

on the road, and to counterbalance the size of the other wheels, it

would be unsteady of motion; the rider would be apt to be thrown

headlong at any jar, and the whole machine would be rendered unsafe.

Many of the larger manufacturers have built the tricycle to some

extent. Most of them have discontinued their make, finding it

unprofitable, and that the machine gave but little satisfaction.

The Bradford Brothers of New York City obtained a patent, and entered

largely into the business, at considerable expense. They, however,

soon stopped the manufacture, and gave exclusive attention to their

four-wheeled machines. The three-wheeled velocipedes of Messrs. Kimball

Brothers, Boston, seem to be as popular as any in the market; but the

sale is mostly local, and but few of them are manufactured.

Various inventors have endeavored to obtain power, by additions to the

gearings, in the shape of spring wheels and levers, but with little

success. Others have applied the principle of the crank to be turned by

the hand, using the hand for steering purposes.

Mr. Wm. H. Hall, of Boston, Mass., has invented a tricycle, which is

impelled by a crank, acting upon a small wheel, connected to another by

an endless pulley. Every revolution of the crank turns the wheels of

the machine once. This machine has not yet been fairly tested.

A mechanic in Indiana also claims to have invented a machine very

similar in construction to this of Mr. Hall’s.

Messrs. Forbes & Sears of New Bedford, Mass., have invented a machine

with two hind wheels running only about five inches apart. It is

claimed that the hind wheels are so near together as to run practically

as one wheel; and yet the rider can stop the vehicle and maintain his

equilibrium.

Messrs. Topliff & Ely of Eleria, Ohio, patented February 23d, 1869, a

tricycle, in which, by a simple movement of a lever, the rear wheels

can be run into one, and the vehicle instantaneously changed into a

bicycle.

A gentleman of Poughkeepsie, N. Y., has invented a machine, in which

both the hind wheels are drivers instead of the forward one. They

are fastened on independent axles meeting in the centre, connected

by a novel arrangement of gearing, so that either wheel can stand

as a pivotal point, and the other be driven round it very swiftly.

The inventor states that it will turn in less space than any other

velocipede.

Mr. John Tremper, of Wilmington, Del., has designed and patented a

tricycle in which the front wheel is the driver as usual; but placed so

closely to the axle of the hind wheels, as to give almost as complete

command over the motions of the machine, in turning corners, as the

two-wheeled velocipede.

“The Bennet Velocipede” is characterized by a driving wheel four feet

in diameter, and two guiding wheels behind, each about a foot in

diameter.

“Samuels’ Velocipede” has also a large driving wheel, with small

guiding wheels behind. This machine is propelled by hand cranks,

connected with corresponding cranks in the driving wheel shaft. The

feet are used for steering. The inventor claims that this machine

will run twenty-five miles an hour on a level road. A New Yorker has

invented a machine for ladies, which he has placed on exhibition at

Pearsall Riding School. The pedals are applied to the rear wheels, and

the small wheel in front is guided by a rod, passing back to the hand

of the lady occupying the seat.

One or two of the novel tricycles, modeled upon new principles, have

proved decided successes.

A gentleman of Ypsilanti, Mich., has invented one that he claims to

have ridden from that place to Detroit, a distance of twenty-eight

miles, in two hours and forty-eight minutes; and to have made a mile

in Ypsilanti in two minutes and thirty seconds. The wheels of this

machine are forty-two inches in diameter, and are propelled by means of

a double hand crank, no treadles being used. On each side of the hub of

the forward wheel, is a grooved pulley; and attached to the straight

portion of the crank are two more pulleys, the four being connected by

belts. At each revolution of the pulleys, the vehicle is propelled a

distance of sixteen and a half feet; and when an ordinary rate of speed

is attained, it runs quite easily. Its weight is forty-nine pounds, and

the inventor claims that it will sustain two hundred pounds without

danger of collapsing. It can be run on ordinary carriage roads, with

comparative ease.

Samuel Marden of Newton Corner, Mass., has lately commenced the

manufacture of a three-wheeled velocipede for which he obtained a

patent in February, 1868. He calls his machine “a mechanical horse;”

it is propelled _by the weight of the rider_, and by friction. It

has neither treadles, cranks, or guiding arms. The rider rises in

his stirrups as on a trotting horse. The saddle is so arranged that

the pressure upon it revolves a gearing wheel, which acts upon a

small one connected with the axle of the rear wheel; these wheels are

thus made to turn very rapidly. It will be seen that this velocipede

is constructed upon an entirely new principle. It is claimed that

it can be driven upon the road, at the rate of from ten to fifteen

miles an hour. This machine can be used by ladies, with a side-saddle

arrangement. Its price is $125. Mr. Marden’s velocipede has been

tested, and we think he has a fortune in his invention. He has more

orders than he can fill, and is prepared to sell State, county, and

town rights.

The Velocipede: Its History, Varieties, and Practice · 第 36 / 44 题