Improvements in Steam and other Engines.
Year: 1894

page_text: Date of Application, 4th Sept., 1894
Complete Specification Left, 4th June, 1895-Accepted, 20th July, 1895
PROVISIONAL SPECIFICATION.
Improvements in Steam and other Engines.
We, CHARLES HARRISON, of Paston, near Peterborough, Engineer, and JOHN
HUDSPETH PEARSON, of 1 and 2, Bridge Street, Peterborough, Chemist and
Druggist, both in the County of Northampton, do hereby declare the nature of
this invention to be as follows:-
Our invention relates to steam, gas, and other engines and our improvements
consist in arranging the cylinder to slide upon suitable guides by means of cranks
on the crank-shaft to which the piston connecting rod is attached, the latter crank
being so placed relatively with the crank or cranks in connection with the cylinder
that when the piston is moving in one direction the cylinder is moving in the
opposite direction.
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COMPLETE SPECIFICATION.
Improvements in Steam and other Engines.
We, CHARLES HARRISON, of Paston, near Peterborough, Engineer, and JOHN
HUDSPETH PEARSON, of 1 and 2, Bridge Street, Peterborough, Chemist and
Druggist, both in the County of Northampton 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 :-
Our invention relates to steam, gas, and other engines and our improvements
consist in arranging the cylinder to slide upon suitable guides by means of crank
on the crank-shaft to which the piston connecting rod is attached, the latter crank
being so placed relatively with the crank or cranks in connection with the cylinder
that when the piston is moving in one direction the cylinder is moving in the
opposite direction.
To enable our invention to be fully understood we will describe the same by
reference to the accompanying drawings, in which :-
Figure is a sectional elevation illustrating my improvements applied to a
horizontal steam engine as an example :
Figure 2 is a plan of the same.
a is the cylinder which instead of being bolted to the bed of the engine as usual
is provided with lateral supports b, b which are attached to guide blocks sliding in
the guides c, c on the bed plate d of the engine or it may be arranged to slide in
any other suitable manner. e is the piston, the connecting rod and the crank
shaft supported in bearings g', gl and provided with three cranks h, ', h, the
piston being connected to the middle one ' which makes an angle of 180° with
each of the others h and h² as shewn in Figure 2.
These latter cranks and are connected to the lateral supports b, by means
of connecting rods i, i which work in journals j, j on the said supports.

page_text: k is the slide valve the rod 7 of which is connected to a cranked spindle m carried
in bearings n, n on the cylinder a and provided at its ends with pinions o, o gearing
on racks p, p so that as the cylinder moves the spindle m is rotated by the
movement of the pinions over the racks thereby operating the valve.
By this arrangement it will be obvious that when steam is admitted into the
cylinder a the piston e and the cylinder will be moved in opposite directions by the
expansion of the steam, that is to say, during one stroke the piston e and the back
end of the cylinder will recede from one another and during the other stroke
they will approach one another.
Although we have described and illustrated our improvements as applied to a
horizontal steam engine it will be obvious that they can be applied to other types
of steam engines such as vertical and oscillating cylinder engines and to gas and
like motors.
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. In steam, gas and like engines arranging the cylinder or cylinders to slide in
suitable guides in a direction opposite to that in which the piston or pistons slides
or slide in the said cylinder or cylinders, substantially as hereinbefore described.
2. The combination and arrangement of parts forming the improved steam
engine hereinbefore described and illustrated in the accompanying drawings.
Dated the 4th day of June 1895.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.