Improvements in Epicyclic Gearing for the Transmission of Power.
Year: 1892

page_text: COMPLETE SPECIFICATION.
Improvements in Epicyclic Gearing for the Transmission of Power.
We, DAVID WELLS CARTER, Inventor, SAMUEL STREET FULLER, Gentle-
man, both of the City of Stratford, in the County of Perth in the Province of
Ontario, aud JAMES BLACK PERRY, Estate Agent, of 46, Dunn Ave., in the City
of Toronto, in the County of York and said Province of Ontario, Canada, 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:—
The object of this invention is to provide a device to be placed between an engine
or other driving power or motor and the machine or machinery to be driven for the
purpose of increasing the power of the engine or other motor and it consists
essentially of a shaft connected to the machine to be driven and having a T head
formed on it two wrist pins projecting from the head at equal distances from the
centre of the shaft each pin having a pinion journalled on it one pinion meshing
with an internal gear formed in the hub of the bracket supporting the shaft and with
the other gear which is fixed to a spur wheel meshing with an internally geared
pulley independently journalled and to which the driving power is applied sub-
stantially as hereinafter more particularly explained.
Figure 1 is a perspective view of this device.
Figure 2 is a perspective view of the T headed shaft carried in its journal but
projecting out of the internally geared hub.
Figure 3 is a detail of the T headed shaft.
Figure 4 is a view of the bracket with internally geared hub.
A is the driven shaft having a T head B formed on it.
Cis a wrist pin on which the pinion D is journalled. This pinion is designed to
engage with the internal gear formed inside of the hollow hub E within which the
Thead B revolves. The teeth of the pinion D project outside of the hub E and
mesh with the teeth of the pinion F which is journalled on the wrist pin C at
the same distance from the centre of the shaft A as the wrist pin C.
The pinion F is fixed to the spur wheel H.
A pulley is fixed to the shaft J suitably journalled in the bracket K and
having a driving pulley L keyed to it from which pulley the driving belt extends
to the engine or other driving motor.
It will be observed that the pulley I has an internal gear formed around its rim
with which gear the spur wheel H meshes.
When the shaft J is caused to revolve by the engine or other motor the pulley I
will naturally revolve with it and in revolving will cause the spur wheel H to
revolve likewise and owing to the fact that the spur wheel II is carried on a crank
the meshing takes place at different points of the gear in the pulley I.
As the pulley F fixed to the spur wheel H meshes with the pinion D which
engages with the teeth in the hollow hub E the power applied to the driven shaft A
is greatly increased from that originally applied by the engine or other driving
power.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what
we claim is :-
1. A shaft having a head with two wrist pins projecting from it at substantially
equal distances from the centre of the shaft each wrist pin having a pinion
alled on it one ninion meshing with an internal stationary gear and with a

page_text: pinion journalled on the other wrist pin which is fixed to a spur wheel meshing with
an internally geared pulley independently journalled and to which the driving
power is applied substantially as and for the purposes specified.
2. An apparatus for the transmission of power composed of levers and gear
wheels arranged in combination with fixed and moving fulcrums substantially as
and for the purposes specified.
Dated this 27th day of July 1892.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.