Improvements in Steam and other Engines.
Year: 1890

page_text: Date of Application, 17th May, 1890
Complete Specification Left, 17th Feb., 1891-Accepted, 11th Apr., 1891
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PROVISIONAL SPECIFICATION.
Improvements in Steam and other Engines.
We, FREDERICK CLARK and FREDERICK WILLIAM CLARK, both of Elwick
Iron Works, Ashford, in the County of Kent, Engineers, do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements upon an invention for which Letters
Patent were granted to us dated the 23rd day of December 1887, No. 17689, and
has for its object to more completely utilize the power exerted by the steam or
other motive fluid.
For this purpose, instead of fixing the crank shaft against revolution, as described
in the Specification of the said former Letters Patent, we permit such shaft to
revolve, and we transmit the rotary motion therefrom by means of suitable gearing
to the revolving wheel or frame carrying the cylinders, so that the power of the
steam or other motive fluid will be more fully concentrated in that direction than
heretofore.
In carrying this invention into effect, we mount loosely upon the crank shaft, a
boss or collar, from which project two or more arms, and we fix these arms in any
desired position against revolution.
Upon each of these arms, we mount with capability of revolving, a bevilled
pinion, and upon the crank shaft, we fix a bevilled toothed wheel, in such manner,
that it engages, and gives motion to, the bevilled pinions, and upon one of the
hollow shafts or axes carrying the radial arms and wheel or frame, we fix a bevilled
wheel, which engages, and receives motion from, the bevilled pinions, and the
rotary motion of the crank shaft is thus imparted to, and caused to assist the
revolution of the wheel or frame.
Suitable ways or passages are provided for the supply and exhaustion of
the steam.
By these means, the steam acts against the cylinder cover to revolve the wheel
in one direction, whilst at the same time, it acts upon the piston to revolve the
crank in the opposite direction, and by reason of this double action, of the steam
being concentrated in one direction as hereinbefore described, greater power is
obtained in proportion to the steam used.
Dated this 17th day of May 1890.
VAUGHAN & SON,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Steam and other Engines.
We, FREDERICK CLARK and FREDERICK WILLIAM CLARK, both of Elwick
Iron Works, Ashford, in the County of Kent, Engineers, 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 :-
This invention relates to improvements upon an invention for which Letters
Patent were granted to us dated the 23rd day of December 1887, No. 17689, and
has for its object to more completely utilize the power exerted by the steam or
other motive fluid.
For this purpose, instead of fixing the crank shaft against revolution as described
in the Specification of the said former Letters Patent, we permit such shaft to

page_text: revolve, and we transmit the rotary motion therefrom by means of suitable gearing
to the revolving wheel or frame carrying the cylinders so that the power of the
steam or other motive fluid will be more fully concentrated in that direction than
heretofore.
In carrying this invention into effect, we mount loosely upon the crank shaft, a
boss or collar, from which project two or more arms, and we fix these arms in any
desired position against revolution.
Upon each of these arms, we mount with capability of revolving, a bevilled
pinion, and upon the crank shaft, we fix a bevilled toothed wheel in such manner,
that it engages and gives motion to the bevilled pinions, and upon one of the
hollow shafts or axes carrying the radial arms and wheel or frame, we fix a bevilled
wheel which engages, and receives motion from the bevilled pinions, and the rotary
motion of the crank shaft is thus imparted to and caused to assist the revolution of
the wheel or frame.
Suitable ways or passages are provided for the supply and exhaustion of the
steam.
And in order that the said invention may be more clearly understood and readily
carried into effect, we will proceed, aided by the accompanying drawings, more
fully to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1. is a diagram shewing the general arrangement of the principal operative
parts of a steam engine constructed according to our invention.
Figure 2. is a side view of so much of such engine as will serve to illustrate our
invention, and,
Figure 3. is a plan thereof the rim or wheel being removed for the sake of
clearness.
In the several figures, like parts are indicated by similar letters of reference.
a. represents a hollow fly wheel or frame which is supported at each side of the
crank by three radial arms or spokes a' from a central boss a² and. b. represents
the cylinders which are mounted upon the radial arms a' and are provided with slide
valves (not shown) actuated from a pin c² eccentrically fixed to the crank c¹ of the
crank shaft c as will be fully understood upon reference to the Specification of the
herein before recited Letters Patent, and a³ represents one of two hollow shafts or
axes which are firmly bolted to the central bosses a² and are mounted with
capability of revolving in suitable bearings around the crank shaft c.
Instead of fixing the crank shaft c. against revolution as described in our said
former Specification, we permit such shaft to revolve and we mount loosely thereon
a boss or collar d. from which project two, or there might be more than two,
arms and we fix these arms against revolution around the crank shaft c. by
clamping them in bearings e.
Upon each of the arms d' we mount with capability of revolving, a long bevilled
pinion f. which is formed double or compound, that is to say, with two distinct sets
of teeth and upon the crank shaft c., we fix a bevilled toothed wheel e³ in such
manner that it engages and gives motion to the compound bevilled pinions f. through
the outer set of teeth thereof and upon the corresponding hollow shaft or axis a³
carrying the radial arms a' and wheel or frame a., we fix a bevilled toothed
wheel of smaller diameter than the wheel c³ and which engages and receives
motion from the inner set of teeth of the compound or double pinions f. and the
rotary motion of the crank shaft c. is thus communicated with an accelerated rate
of speed to the wheel or frame a. and caused to assist the revolution thereof.
By these means the steam acts against the cylinder covers to revolve the wheel
or frame a. in the desired direction whilst at the same time it acts upon the
pistons to revolve the crank c¹ and shaft c. in the opposite direction, but this latter
force is through the toothed gearing and hollow shaft a³ reversed and caused to
assist the revolution of the wheel or frame a. and by reason of this double action

page_text: of the steam being concentrated in one direction as hereinbefore described, greater
power is obtained in proportion to the steam used than by the arrangement shown
and described in our said former Specification.
In lieu of the peculiar arrangement of gearing hereinbefore shown and described
whereby an accelerated rate of speed is given to the wheel or frame a., we may, if
desired, so arrange such gearing as to impart a reduced rate of speed to the wheel
or frame a., and we may also, if desired, vary the number of the cylinders employed
as will be readily understood.
As the ways or passages for the supply and exhaustion of the steam or other
motive fluid and other details of construction apart from our present invention are
precisely similar to those shown and described in our said former Specification and
can be fully ascertained upon reference thereto we have not thought it necessary.
to illustrate or describe the same herein.
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 a steam or other engine, the combination of a revolving wheel or frame, a
cylinder or cylinders mounted upon such wheel, a revolving crank shaft driven by
the piston or pistons of such cylinder or cylinders and means for communicating the
motion of the crank shaft to the revolving wheel, substantially as herein shown and
described.
2. In a steam or other engine the combination of a revolving wheel or frame
provided with hollow shafts or axes a cylinder or cylinders mounted upon such
wheel, a revolving crank shaft driven by the piston or pistons of such cylinder or
cylinders, a bevilled toothed wheel fixed upon the crank shaft, a similar wheel
fixed upon one of the hollow shafts or axes of the wheel or frame and bevilled
pinions mounted upon fixed axes and engaging both of the toothed wheels,
substantially as herein shown and described and for the purpose stated.
Dated this 17th day of February 1891.
VAUGHAN & SON,
Agents for the Applicants.