Improvements in and relating to Gear Wheels.
Year: 1898

page_text: Date of Application, 25th Jan., 1898-Accepted, 26th Feb., 1898
COMPLETE SPECIFICATION.
Improvements in and relating to Gear Wheels.
I, CALVIN JACKSON, a citizen of the United States of America, residing at
2321 Mole Street, in the City and County of Philadelphia and State of
Pennsylvania, United States of America, (Machinist), do hereby declare the nature
of this invention and the manner in which the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement:-
-
This invention relates to improvements in gears and consists of a wheel with a
grooved face in which is arranged an endless coil of wire, the coils of two wheels
meshing and forming an easy and positive gear. The object of the invention being
to produce noiseless gears that will mesh at any desired angle and of simple con-
struction.
The invention is fully described in the following specification, and clearly shown
in the accompanying drawing, which is a vertical elevation partly in section of my
improved gear wheel.
The body of the wheel A can be made of wood or metal, as desired, and can
be either solid or formed with spokes, as the construction thereof is not essential.
The face of the wheel is provided with a circumferential groove a.
In this groove is arranged an endless coil of wire B which coil is sprung into the
groove and secured to the wheel in any suitable manner, as for instance by brazing
it at the points where each convolution of the coil comes in contact with the
periphery of the wheel, or it can be fastened by means of a wire c running through
the coil and passing through the rim of the wheel, and secured by means of a nut d.
One wheel of a set of gears is provided with a right and the other with a left
hand coil, in order that they will mesh when brought together.
It will be seen that when they are brought together the convolutions of the coil
on one wheel will enter the spaces between the convolutions of the coil on the other
wheel, and that a number of them will mesh at the same time, thus distributing the
strain and securing a great amount of power.
The diameter of the coil can be somewhat larger than the thickness of the wheel,
allowing the coil to extend on either side thereof, and when this is the case two
wheels will gear at any angle.
The angle of two gear wheels can be changed or the wheels thrown into or out
of gear while in operation as there is sufficient elasticity in the coils to overcome
any strain due to such action.
A lubricant is not necessary on my improved gear, as there is but very little
friction on account of the pitch of the convolutions and it is practically noiseless.
Having now particularly described and ascertained the nature of my said in-
rention, and in what manner the same is to be performed, I declare that what I
claim is:
-
A blank wheel having its rim provided with a peripheral groove, an endless
oil of wire located in said groove, a securing wire having loop-portions projected
hrough said rim the ends of said securing wire being also proiented throuch

page_text: rim, pins designed to engage said loop-portions and a collar designed to unite the
ends of said wire, substantially as set forth.
Dated this 25th day of Januar: 1898
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.