IMPROVEMENTS IN PUMPING ENGINES AND STEAM BOILERS THEREFOR, WHICH STEAM BOILERS ARE ALSO APPLICABLE TO OTHER PURPOSES." PROVISIONAL SPECIFICATION
Year: 1868

page_text: LETTERS PATENT to Richard Moreland, the younger, and David
Thomson, both of No. 3, Old Street, Saint Luke's, in the County"
of Middlesex, for the Invention of "IMPROVEMENTS IN PUMPING
ENGINES AND STEAM BOILERS THEREFOR, WHICH STEAM BOILERS ARE ALSO
APPLICABLE TO OTHER PURPOSES."
PROVISIONAL SPECIFICATION left by the said Richard Moreland
and David Thomson at the Office of the Commissioners of Patents,
with their Petition, on the 6th April 1868.
We, RICHARD MORELAND, the younger, and DAVID THOMSON, both
of No. 3, Old Street, Saint Luke's, in the County of Middlesex, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN

page_text: PUMPING ENGINES AND STEAM BOILERS THEREFOR, WHICH STEAM BOILERS ARE
ALSO APPLICABLE TO OTHER PURPOSES," to be as follows :-
Our improvements in pumping engines relate to that class of such
engines usually termed "direct acting," the pump being placed directly
under the steam cylinder and worked by a rod or rods connected with
the piston, a connecting rod and crank being added to regulate the
motion in the usual way.
In our improved arrangement we connect the pump cylinder rigidly
and compactly to the steam cylinder and in combination with this
form of engine we arrange the lower valve box of the pump so as to
be conveniently detached therefrom and removed sideways on travelling
wheels whereby access is got to the pump valves, and the pump
bucket or plunger or both can at the same time be withdrawn for
repairs or packing at the bottom of the pump. The piston of the steam
cylinder is taken out or replaced, when required, at the top of the
cylinder. By this arrangement we facilitate and cheapen the con-
struction of large pumping engines, and at the same time we can make
such engines entirely self contained and much easier and simpler in
fixing and more economical in foundations than heretofore.
9
Our improvements in steam boilers to such before described engines
have reference to the description of steam boilers having pendant water
tubes inside which an inner tube is placed for facilitating the circulation
of water. Our improvements consist in continuing the upper end of
the inner tube sideways to a different part of the boiler for the purpose
of causing solid water (i.e. more or less unmixed with steam) to pass
into the tube, which water would also be at a lower temperature than
that in the pendant tubes. The inner tube may for this purpose be
conducted either to the side of the boiler, or, in the case of Cornish
boilers, to the bottom of the same. The outer extremity of the inner
tube may be provided with a funnel or trumpet mouthed opening 3
placed in any direction to facilitate the entrance of the water. The
inner tube may be provided with two or more branches conducted as
described, or there may be two or more such inner tubes with
extended upper ends in one outer pendant tube.
This improved
construction of steam boiler is also applicable to other
besides pumping engines.
purposes
3

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said Richard Moreland and David Thomson in the
Great Seal Patent Office on the 6th October 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, RICHARD
MORELAND, the younger, and DAVID THOMSON, both of No. 3, Old
Street, Saint Luke's, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixth day of April, in the year
of our Lord One thousand eight hundred and sixty-eight, in the
thirty-first year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Richard Moreland, the younger,
and David Thomson, Her special licence that we, the said Richard
Moreland, the younger, and David Thomson, our executors, adminis
trators, and assigns, or such others as we, the said Richard Moreland,
the younger, and David Thomson, our executors, administrators, and
assigns, should at any time agree with, and no others, from time to
time, and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN PUMPING ENGINES
AND STEAM BOILERS THEREFOR, WHICH STEAM BOILERS ARE ALSO APPLICABLE
TO OTHER PURPOSES," upon the condition (amongst others), that we,
the said Richard Moreland, the younger, and David Thomson, our
executors or administrators, by an instrument in writing under our
or their hands and scals, or under the hand and scal of one of us or
them, should particularly describo and ascertain the nature of the
said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Oflice within
six calendar months. next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said David Thomson, on behalf of
myself and the said Richard Moreland, the younger, do hereby declaro
the nature of the said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by
the following statement thereof, reference being had to the accompanying
Sheet of Drawings and to the figures and letters marked thereon,
that is to say :-

page_text: Our improvements in pumping engines relate to that class of such
engines usually termed "direct acting," the pump being placed directly
under the steam cylinder and worked by a rod or rods connected with
the piston, a connecting rod and crauks being added to regulate tho
motion in the usual way.
In our improved arrangement we connect the pump cylinder rigidly
and compactly to the steam cylinder, and in combination with this
form of engine we arrange the lower valve box of the pump so as
to be conveniently detached therefrom and removed sideways on
travelling wheels, whereby access is got to the pump valves, and the
pump bucket or plunger or both can at the same time be withdrawn
for repairs or packing at the bottom of the pump. The piston of
the steam cylinder is taken out or replaced when required at the top
of the cylinder. By this arrangement we facilitate and cheapen the
construction of large pumping engines, and at the same time we can
make, such engines entirely self contained, and much easier and simpler
in fixing and more economical in foundations than heretofore.
Our improvements in steam boilers to such before described engines
have reference to the description of steam boilers having pendant water
tubes, inside which an inner tube is placed for facilitating the circulation
of water.
Our improvements consist in continuing the upper end of the inner
tube sideways to a different part of the boiler for the purpose of
causing solid water (i.c. more or less unmixed with steam) to pass
into the tube, which water would also be at a lower temperature than
that in the pendant tubes. The inner tube may for this purpose be
conducted either to the side of the boiler, or in the case of Cornish boilers
to the bottom of the same. The outer extremity of the inner tube may
be provided with a funnel or trumpet mouthed opening placed in any
direction to facilitate the entrance of the water. The inner tube may
be provided with two or more branches conducted as described, or
there may be two or. more such inner tubes with extended upper ends
in one outer pendant tube.
This improved construction of steam boiler is also applicable to other
purposes besides pumping engines.
Figure 1 on the accompanying Sheet of Drawings shows a sectional
clevation of our before described improved construction of pumping
engine. A is the pump cylinder, the piston B of which is worked

page_text: direct from the steam cylinder C by means of the rods D attached
to the piston rod B¹ formed as a plunger. The upper end of the
pump has flanges E formed thereon by which it is firmly secured to
the upright frames F carrying the steam cylinder C. The lower valve
box G is bolted to a flange at the lower end of the pump cylinder
and rests by means of rollers upon two rails or girders H so that when
required it may be detached from the pump cylinder and moved laterally
upon the rails into the position shown in dotted lines where the valve I
will be readily accessible, a ladder O being provided for this purpose.
The piston B and plunger B¹ may also then be removed through tho
lower end of the pump cylinder if required. The rails H are in such
a position that when the joint at P is broken the valve box will drop
slightly before it rests on the rails, thus allowing it to be withdrawn
with case. We do not confine ourselves to the use of a plunger and
bucket pump as shown on the Drawing, as the same general arrange-
ment and plan of removing the valve box may also be applied to pumps
working with a simple plunger or with a solid piston, in which case
the moveable valve box would be arranged to contain both the delivery
and the suction valve.
The above described arrangement of pumps may be employed either
with a vertical suction pipe, as shown on the Drawing, or with a long
suction pipe extending to a distant source of supply, in which case
the bend shown in dotted lines connecting the valve box to the suction
pipe is disconnected at the joint at Q when the valve box is to be
removed. In such a casc, as also when there are two valves in the
box, it is desirable to support the valve box on the rails by means
of four rollers instead of only two as shown. The pumping engine
is provided with a fly wheel shaft J driven by means of the connecting
rod K in the usual manner.
Figures 2 and 3 show respectively a sectional clevation and a sectional
plan of a steam boiler with pendant water tubes constructed according
to our Invention. The inner tubes L, L', of the pendant tubes M
are continued sideways at their upper ends to the side water spaces N
of the boiler whereby the cooler and more solid water in such water
spaces will be made to enter the tubes in place of the water charged
with steam immediately surrounding the water tubes over the crown
plate as is the case with the arrangements of such tubes used here-
tofore. The tubes L might even if required be extended down to any

page_text: depth in the water spaces N for this purpose. The tubes may either
be carried over each other to the sides of the boiler as at L, or they
may be arranged side by side as at L'.
Having thus described the nature of the several parts of our Invention
and in what manner they are to be performed, what we claim is,-
First. Constructing direct acting pumping engines with the pumps
attached directly to the framing of the engine, in combination with
the arrangement for obtaining access to the pump valve or valves
and piston or plunger at the bottom of the pump as herein-before
described.
Second. Constructing pendant water tube steam boilers with the
upper ends of the inner tubes extended to a part of the boiler where
the water is less mixed with steam than it is over the plate in which
the pendant tubes are fixed substantially as herein-before described.
In witness whereof, I, the said David Thomson, have hereunto set 1
my hand and scal, this Sixth day of October, in the year of our
Lord One thousand eight hundred and sixty-eight.