Improvements in or connected with Locomotives.
Year: 1895

page_text: Date of Application, 12th Mar., 1895
Completo Concification Loft 2nd Dec 1905 Accented 4th Jan. 1896
PROVISIONAL SPECIFICATION.
Improvements in or connected with Locomotives.
I, JAMES RICHARDSON of Domestic Street, Holbeck, Leeds, in the County
of York, Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to so arrange the positions of the cylinders and
cranks in compound locomotives that a very large low pressure cylinder may be
employed; whilst at the same time the working effect of both high and low
pressure cylinders is increased considerably.
According to my invention I employ a large low pressure cylinder, which is
mounted beneath the boiler of the engine, and the piston rod of the said cylinder
is connected through a suitable connecting rod to a crank situated on the driving
axle of the locomotive.
At the side of the engine outside the wheels, I mount a high pressure cylinder,
the piston rod of which is connected to a crank pin situated on one of the driving
wheels of the engine. The angle between the crank pins of the high and low
pressure cylinders is 120° or thereabouts, which enables me to obtain much greater
efficiency in the working of the two cylinders, as the low pressure cylinder begins
its work when the high pressure cylinder commences to exhaust. In this manner
the low pressure cylinder commences its work before the crank pin, to which it is
connected, has reached the right angles position, thus exerting its power in the
most beneficial manner.
It will at once be seen that by arranging the positions of the cylinders as above
described, the size of the low pressure cylinder may be increased to any required
extent, owing to the extra space afforded, and thus the limitation of size owing to
the want of room is obviated.
The arrangement of steam supply pipes and cocks, described in the Specification
of my Patent No. 2117 A.D. 1894 may be employed in combination with the above
described arrangement, thus enabling the engine to be worked as an ordinary
simple engine for starting and shunting purposes.
Dated this 10th day of March 1805
BREWER & SON,
London and Leeds, Agents for Applicant.
Improvements in or connected with Locomotives.
I, JAMES RICHARDSON, of Domestic Street, Holbeck, Leeds, in the County
of York, 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:―
The object of my invention, is to so arrange the positions of the cylinders and
cranks in compound locomotives, that a very large low pressure cylinder may be
employed; whilst at the same time the working effect of both high and low
pressure cylinders is increased considerably.

page_text: In order that my invention may be clearly understood, I will proceed to describe
same with reference to the accompanying drawing, in which similar letters refer to
like parts in all the figures.
Figure 1, is a front view of an engine constructed according to my invention,
and Figure 2, is a detail view showing the position of the cranks.
According to my invention, I employ a large low pressure cylinder A, which is
mounted beneath the boiler of the engine, and the piston rod of the said cylinder A
is connected by a suitable connecting rod to a crank B situated on the driving
axle C of the locomotive. D is a high pressure cylinder which is mounted on the
outside of the locomotive, and the piston rod of the cylinder D is connected with a
crank pin E situated on the driving wheel F. The angle between the crank pin E
and the crank B is about 120° which enables me to obtain much greater efficiency
in the working of the two cylinders, as the low pressure cylinder A begins its work
when the high pressure cylinder D commences to exhaust. In this manner the low
pressure cylinder A commences its work before the crank pin to which it is
connected, has reached the right angles position, thus exerting its power in the
most beneficial manner. Instead of placing the crank B in the position shown at
Figure 2, I sometimes place it on the other side of the axle at half a revolution
from its shown position, and this has pretty much the same beneficial results, except
that the engine is not so nicely balanced.
It will at once be seen that by arranging the positions of the cylinders A and D
in the manner above described, the size of the cylinder A may be increased to any
required extent, owing to the extra space afforded, and thus the limitation of size
owing to the want of room is obviated.
The arrangement of steam supply pipes and cocks, described in the Specification
of my, Patent No. 2117 A.D. 1894, may be employed with the above described
arrangement, and this application is shown applied at Figure 1 of the accompanying
drawing, and the said combination enables the engine to which it is applied, to be
worked as an ordinary simple engine for starting or shunting purposes..
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. The employment of a low pressure cylinder situated below the boiler of a
locomotive, in combination with a high pressure cylinder situated outside the wheels
of the said engine, substantially as and for the purposes set forth.
2. The setting of the crank pins B and E, in such relative positions to each
other, that the most effective results are obtained, substantially as described.
3. In compound locomotives, the employment of the high and low pressure
cylinders D and A, in the positions described, in combination with the crank
pins E and B, set at or about the angles shown and described, substantially as and
for the purposes set forth, together with any mere modification or modifications
thereof.
Dated this 2nd day of December 1895.
BREWER & SON,
London and Leeds, Agents for the Applicant.