A New or Improved Generator of Motive Force for Various Useful Purposes.
Year: 1891

page_text: Date of Application, 9th. July, 1891
Complete Specification Left, 9th Apr., 1892-Accepted, 2nd July, 1892
PROVISIONAL SPECIFICATION.
A New or Improved Generator of Motive Force for Various
Useful Purposes.
I, JOHN JAMES ROYLE of Great Bridgewater Street, Manchester, Engineer,
do hereby declare the nature of my invention to be as follows:-
The object of this invention the production of motive force in the form of
elastic vapour or steam by means of a simple, safe and comparatively inexpensive
apparatus and its application to various useful purposes where motive power. is
required in a form that can be placed in unskilled hands with safety.
I take a length of iron piping and form it into a coil or worm about a central axis..
and imbed this pipe in a wall of cast iron by placing it in a suitable sand mould
and running molten cast iron around it. I thus form a cylinder of cast iron with
the coil imbedded in it.
The cylinder so formed is then fitted with a fire grate and flue and means of
feeding similar to a stove the iron pipe being effectually protected by the cast iron
around it from readily burning out. By suitable arrangements I admit water at the
top of the coil preferably intermittently which descending into the heated coil is
rapidly vaporised and issues at the lower end of the coil with considerable pressure.
A syphon arrangement is the most convenient for admitting the water inter-
mittently but other devices may be used.
The elastic force thus generated can be employed for various useful purposes such
as lifting or forcing water by means of an injector or ejector or by admitting it on
to the surface of the water in a suitable vessel provided with inlet and outlet valves
for exhausting gases for ventilating buildings-exhausting or blowing organs-
the production of motive force from water under pressure as above described by
means of a turbine or impact wheel and for other purposes.
I do not confine myself to the coil formation as an imbedded pipe could be
disposed in other ways if desirable such as a slab with a furnace under it. The
wall may have holes or passages formed through it to increase the heating surface
with the furnace and flues arranged accordingly.
Dated this 8th day of July 1891.
JOHN G. WILSON,
Agent for the Applicant.
COMPLETE SPECIFICATION.
A New or Improved Generator of Motive Force for Various
Useful Purposes.
I JOHN JAMES ROYLE of Great Bridgewater Street, Manchester Engineer
do hereby declare the nature of my said 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 the production of motive force in the form of
elastic vapour or steam by means of a simple, safe and comparatively inexpensive
apparatus and its application to various useful purposes where motive power is
required in a form that can be placed in unskilled hands.
take a length of iron piping and form it into a coil or worm about a central
axis and imbed thie pipe in a wall of cast iron by placing it in a suitable sand mould
and running molten cast iron around it. I thus form a cylinder of cast iron with the
coil imbedded in it.
The cylinder so formed is then fitted with a fire grate and flue and
.
means of

page_text: feeding similar to a stove the iron pipe being effectually protected by the cast
iron around it from readily burning out. By suitable arrangements 1 admit water
at the top of the coil preferably intermittently which descending into the heated
coil is rapidly vaporised and issues at the lower end of the coil with considerable
force.
A syphon arrangement may be employed for admitting the water intermittently
but other devices may be used.
The elastic force thus generated can be employed for various useful purposes
such as lifting or forcing water by means of an injector. or ejector or by admitting
it on to the surface of water in a suitable vessel provided with inlet and outlet
valves for exhausting gases-for ventilating buildings-exhausting or blowing
organs the production of motive force from water under pressure. as above
described by means of a turbine or impact wheel and for other purposes.
And in order that this my said invention may be more readily understood and
carried into practical effect I have hereunto. annexed a sheet of drawings illus
trative of my invention and will now proceed to describe the same with the
assistance of the various figures and letters of reference marked thereon.
Fig. 1 is a diagram view showing the application of my invention to raising
water from a brook or pond into a tank common to railways.
Fig. 2 is a sectional elevation showing in detail the essential feature of my
invention.
Fig. 3 is a view shewing its application to draining a "sump" or well.
Fig. 4 illustrates its application to the ventilation of a building.
Referring now to Fig. 2 B is the coil of wrought iron pipe imbedded in the cast
iron A. by placing the coil in a suitable sand mould and running molten metal
around it. The cylinder so formed is fitted with a fire grate and flue and means
of feeding similar to a stove as illustrated. Water is admitted in measured
quantity (as hereinafter explained) into the top part of the coil B through the
check valve C and becoming rapidly converted into steam issues at D with
considerable pressure. The force thus generated may be utilised for various useful
purposes one of which is illustrated in Fig. 1 where the steam is led to the top of a
bottle shaped vessel II fitted at its base with inlet and outlet check valves H and II
of which the inlet H is shewn led into a stream or pond and fitted with a strainer K
and the outlet H is carried up to the tank I.
The action is as follows. A quantity of water is admitted into the coil Bas
hereinbefore mentioned proportioned to the size of the pulsator II and being
rapidly vaporised is conveyed by the pipe D and exercises pressure upon the
surface of the water in the pulsator H forcing it out through the check valve H*
and up into the tank 1. As the pulsator H becomes emptied of water the genera-
tion of steam ceases owing to the measured quantity of water admitted into the
coil as aforesaid having. become entirely converted into steam whereupon a vacuum
rapidly forms in the pulsator II drawing in a fresh supply of water from the brook
or pond and at the same time another measured supply of water is drawn from
the cistern. Finto the coil B which is again rapidly converted into steam and the
operation repeated.
The feed water is admitted into the coil B from a cistern Ffed by a ball.
valve F from any convenient source. J is a box containing a rubber or leather
diaphragm connected to a valve J capable of closing on to a seating but held open
by a spiral spring J. A small hole (see arrow) is formed in the side of the box J.
The action is as follows. As the vacuum forms in the pulsator H and throughout
the coil B the water on the underside of the diaphragm is drawn into the coil,
pulling the diaphragm downwards and bringing the valve J on to the seating J¹ so
shutting off the supply. The quantity of water therefore depends upon the amount
of deflection allowed to the diaphragm which may be adjusted by a setscrew J³ in
the cover.
As soon as the vacuum ceases the upward pull of the spiral spring J
draws back the diaphragm to its normal position and the water enters through the
orifice indicated by the arrow and refills the box J ready for the next vacuum.

page_text: In my Provisional Specification I describe a syphon arrangement for effecting
this object but I have found the diaphragm arrangement above described to work
more positively and hence have illustrated it as the best method of carrying out my
invention. It will be obvious that a cylinder and piston could be used in lieu of a
diaphragm or any other mechanical device the essential feature of which is to bring
a valve down on to a seating and shut off the supply as soon as a definite quantity
of water has been taken in and I do not therefore confine myself to any particular
mechanical arrangement.
I thus construct an apparatus which can be placed in unskilled hands for raising
water for domestic and other purposes and in the manipulation of which all that is
necessary is to keep up a fire in the furnace and to open the top valve X to admit
the feed water.
A dead weight safety valve is shewn at D' on the line of the pipe D as a matter
of precaution against over pressure but if the amount of feed water is properly
adjusted it will be found not to be necessary.
"
In Fig. 3 I illustrate the same construction of generator for draining a
$6 Bump
or well but by means of an ejector a,-the pulsations of steam acting through the
ejector to raise the water in the manner well known in connections with ejector.
In Fig. 4 I illustrate the application of my invention to the ventilation of
buildings by utilising the pulsations of steam acting through ventilating nozzle (1)
in a pipe (2), the successive blasts of steam inducing a strong current as indicated
by the arrows.
From the foregoing it will be obvious that I could employ the same system of
generator and feed apparatus for other purposes such as blowing a fog horn or
whistle (see Fig. 5); exhausting organs (see Fig. 6) or for the production of rotary
motion by allowing the water discharged from the pulsator to act upon a turbine
or impact wheel (see Fig. 7) or by the direct action of the steam on a suitable
turbine.
.
In the case of a fog horn the action is more or less intermittent but in the case of
exhausting organs the bellows serve to make the action continuous. In the case of
the turbine a vertical pipe might be used leading to a tank which receives the
greater portion of the water discharged from the pulsator whilst only a small jot
of water is forced onto the wheel such head of water however on the vacuum being
formed in the generator descends and escapes onto the wheel so making the motion
of the wheel continuous.
The wall containing the coil may have holes or passages formed in it to increase
the heating surface with the furnace and flues arranged accordingly.
Having thus particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I wish it to be under-
stood that I do not confine myself to the precise details relative proportions or
dimensions of the apparatus nor to the cylindrical form of generator as it will be
obvious that the coil might be disposed in other ways to suit other forms of
furnace but what I consider to be new and therefore desire to claim by Letters
Patent is.-
1st. A coil B imbedded in or surrounded by cast iron arranged in a furnace sub-
stantially as and for the
described.
purposes
-
2nd. The imbedded coil B in combination with the pulsator H and intermittent
feed apparatus F mounted and operating substantially as and for the purposes
hereinbefore described and illustrated on the accompanying drawing.
3rd. The imbedded coil and intermittent feed apparatus in combination with an
ojector, fog horn, turbine wheel or other motor for the purposes specified.
Dated this 8th day of April 1892
JOHN G. WILSON,
Agent for the Applicant.