improvements in Combined Portable or Traction Engines and Dynamo Electrical Machines.
Year: 1886

page_text: Date of Application, 19th Nov., 1886.
Complete Left, 17th Aug., 1887.
Complete Accepted, 27th Sept., 1887.
improvements in Combined Portable or Traction Engines
and Dynamo Electrical Machines.
I THOMAS LAKE AVELING of Rochester in the County of Kent Engineer "do
hereby declare the nature of this invention to be as follows :-
Dynamo electrical machines have before been mounted at the front end of portable
or traction engines and have been driven by an endless belt from the fly wheel of the
engine. With this arrangement there is however difficulty in ensuring the driving of
the dynamo with certainty and regularity more especially in wet weather.
According to this invention I mount a dynamo electrical machine upon a horizontal
bed erected above the top of the crank shaft of the steam engine-the cylinders and
crank shaft of the engine being as usual mounted above the top of the steam boiler.
The axis of the dynamo I set parallel with the crank axis and on its end I fix. a
pinion to gear with a spur wheel fixed to the inner side of the fly wheel.
The dynamo I make capable of being slidden endwise on the horizontal bed which
carries it towards and away from the fly wheel so that the pinion on the axis of the
dynamo may at will be put into or out of gear with the spur wheel.
By mounting the dynamo vertically above the top of the crank shaft and giving
motion to its axis by spur gearing as above described the driving of the dynamo is
effected with certainty and irregularities from the slipping of the driving belt are
avoided. The fly wheel also is left free so that if required it can be used for driving
other machinery.
Dated this 19th day of November 1886.
CARPMAEL & Co.,
Agents for the Applicant.

page_text: and Dynamo Electrical Machines.
I, THOMAS LAKE AVELING of Rochester, in the County of Kent, Engineer, 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 :-
Dynamo electrical machines have before been mounted at the front end of portable
or traction engines and have been driven by an endless belt from the fly wheel of the
engine. With this arrangement there is however difficulty in ensuring the driving of
the dynamo with certainty and regularity more especially in wet weather.
According to this invention I mount a dynamo electrical machine upon a horizontal
bed erected above the top of the crank shaft of the steam engine the cylinders
and crank shaft of the engine being as usual mounted above the top of the
steam boiler.
The axis of the dynamo I set parallel with the crank axis and on its end I
fix a pinion to gear with a spur wheel fixed to the inner side of the fly wheel.
The dynamo I make capable of being slidden endwise on the horizontal bed which
carries it towards and away from the fly wheel so that the pinion on the axis of the
dynamo may at will be put into or out of gear with the spur wheel.
By mounting the dynamo vertically above the top of the crank shaft and giving
motion to its axis by spur gearing as above described-the driving of the dynamo
is effected with certainty and irregularities from the slipping of the driving belt
are avoided.
The fly wheel also is left free so that if required it can be used for driving
other machinery.
In the drawings hereunto annexed I have shewn a dynamo electrical machine
combined with a traction engine in the manner above described.
Figure 1 is a plan view partly in section. Figures 2 and 3 are vertical cross
sections and Figure 4 a side elevation of parts of the dynamo electrical machine and
so much of a portable or traction engine as is necessary for shewing the way in which
I carry out my invention.
The dynamo A is as shewn by the drawing carried on a wrought iron frame B fixed
to the side plates of the engine. The dynamo is secured to the frame by four bolts C
which pass through slots D.-the slots allow of the dynamo being moved towards or
from the fly wheel to put it into or out of gear.
.
E is a ring of teeth fixed to the inner side of the fly wheel of the engine and G is a
pinion on the end of the axis of the dynamo. In Figure 2 this pinion is shewn to be
out of gear with the ring of teeth E but by moving the dynamo to the left it can
be brought into gear therewith as shewn at Figure 3.

page_text: 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. Mounting a dynamo electrical machine upon a horizontal bed above the top of
the crank shaft of a portable or traction engine the crank shaft of which is above the
top of the steam boiler and driving the dynamo by gearing from the crank shaft.
2. The construction of a combined portable or traction engine and dynamo electrical
machine substantially as herein before described and illustrated in the drawings
annexed.