345 other Bearings.
Year: 1887

page_text: Date of Application, 18th Aug., 1887.
Specification Accepted, 4th Oct., 1887.
345
other Bearings.
I, CARLOS ACCIOLI DE AZEVEDO BÁSTO, Rio de Janeiro, Brazil, Student, do hereby
declare the nature of this invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
My invention consists in a new hearing particularly applicable to the axles of
waggons and locomotives, to the driving shafts of pulleys and gear wheels of machines
in factories and other industrial works. Its utility consists in more efficiently
employing the motive power by diminishing the friction by two thirds of that which
occurs in bearings of ordinary construction.
This bearing is composed of a box of brass or other suitable metal shown in Fig. 1,
the centre of which is bored out to receive five small cylinders or rollers a, b, c, d, e,
(Fig. 2), of iron or steel, and turned to about one third of the diameter of the part
of the shaft or axle that the bearing is to receive, and of a length equal to that of the
bearing surface.
This box must always be divided into two equal parts B and C (Fig. 1), which are
connected by four bolts passing through openings f, g, h, i, (Figs. 2 and 4), with the
object of facilitating the introduction of the five small cylinders above referred to, and
to change same when necessary.
The cylinders should be formed with slightly conical ends (Fig. 3), so as to prevent
an increase of friction in passing round curves which may exist in the road the vehicle
travels along. Such vehicle may even be arrested as often as requisite, without wasting
power.
The five recesses a¹, b, c, d, e¹, formed round the principal opening in the bearing, to
receive the five cylinders, must have exactly the same form throughout their length,
so as to render the adjustment very exact, while leaving only the necessary play to
ensure the proper action.
These bearings of the small cylinders are not entirely closed throughout their
length, as will be seen by reference to Figs. 2 and 4, and it follows therefore that the
axle or shaft A will work against the exposed part of the cylinders (Figs. 2 and 5).
As these cylinders are perfectly concentric and well polished, and are arranged so that
one of them always occupies a position above the axle on its vertical axis (cylinder c
EDC1

page_text: Fig. 2), it follows that the slightest impulse will impart a rotary movement thereto in
the opposite direction to that of the shaft, thus considerably increasing the speed of
the vehicle, while diminishing the friction.
Fig. 5 represents an arrangement of frame for the springs D and E which may be
of steel or of india rubber, as seen from the interior of the vehicle; the opposite side
is practically of ordinary construction. The dimensions differ slightly so as to suitably
receive the bearing X (Fig. 6), and the spring frame in the guides k, l, m, n, (Fig. 7),
and allowing them the necessary play.
A cover plate (Fig. 5) serves to prevent the bearing leaving its place should the
vehicle leave the rails; the parts k, l, m, n', are the upper and lower bearing surfaces
for the springs.
The bearing when applied to waggons and locomotives possesses considerable
advantages on the point of economy, as it diminishes by two thirds the opposing
friction, which correspondingly diminishes the motive power employed and con-
sequently the consumption of steam and fuel.
For vehicles propelled by animal power the application of my invention will enable
one animal to do as much work as two are with difficulty able to accomplish when
bearings of ordinary construction are employed.
Its application to vehicles propelled by electric power will enable the weight and
size of the cumbersome accumulators to be diminished.
Besides these advantages my invention will prolong the duration of the bearing
surfaces of shafts and axles, which being subject to but little friction, will naturally
wear out more slowly, thus effecting a further economy.
Having now particularly described and ascertained the nature of my said Invention,
and in what manner the same is to be performed, I declare that what I claim is :-
1. The improved construction of bearing for the axles of the wheels of vehicles and
driving shafts of machines, loose pulleys, etc., consisting of a metallic box containing
five cylinders of iron or steel of one third the diameter of the bearing surface of the
shaft and of the same length.
2. The application to the bearing above described of five cylinders of iron or steel
the extremities of which are made slightly conical, and which are perfectly turned and
polished.
3. The arrangement of five cylinders so that one of them is centrally situated above
the vertical axis of the bearing surface of the shaft, so as to be actuated by the slightest
movement of the vehicle.
4. The combination with the bearing above described of the arrangement of guides
serving to receive steel or india rubber springs.
5. The arrangement of a metal cover plate at the lower end of the supports, to
prevent the bearing falling out of its position should the vehicle leave the rails.
ALLISON BROS.,
Agents for the Applicant.