IMPROVED MEANS AND APPARATUS FOR INDICATING THE ACTION OF FORCE PUMPS CONNECTED WITH STEAM BOILERS FOR FEEDING THE SAME
Year: 1871

page_text: LETTERS PATENT to John Butler, of the Town and County of the
Town of Nottingham, for the Invention of "IMPROVED MEANS AND
APPARATUS FOR INDICATING THE ACTION OF FORCE PUMPS CONNECTED WITH
STEAM BOILERS FOR FEEDING THE SAME."
Scaled the 15th September 1871, and dated the 17th March 1871.
PROVISIONAL SPECIFICATION left by the said John Butler at the
Office of the Commissioners of Patents, with his Petition, on the
17th March 1871.
I, JOHN BUTLER, of the Town and County of the Town of Notting-
ham, do hereby declare the nature of the said Invention for "IMPROVED
MEANS AND APPARATUS FOR INDICATING THE ACTION OF FORCE PUMPS CONNECTED
WITH STEAM BOILERS FOR FEEDING THE SAME," to be as follows:-
For this purpose a glass gauge is employed such as is commonly used
on steam boilers as a water gauge.
The manner in which the gauge is caused-to indicate the working or
action of the force pump is as follows:-A small pipe with a tap and

page_text: indicating dial is attached to the feed pipe which connects the force
pump with the boiler. This small pipe is inserted at right angles to the
feed pipe, the other end of the small pipe being inserted in the bottom
bearing of the water gauge directly facing the hole from the gauge into
the boiler. Directly the small tap is turned on and the force pump is
set to work the current in the feed pipe rushing past the small pipe
reduces the pressure in it and instantly the water in the gauge falls,
and at every stroke of the pump causes the water to throb or fall and
rise again in the glass tube or gauge. When in connection with a full
stroke of the pump the tap is set to allow the water in the gauge to fall
say nine inches to one inch or vice versa, or any intermediate number of
inches, as may be required. The glass gauge will thus show the action
of the force pump.
If the pump is only acting with half its force to
force half the quantity of water into the boiler the throb or rise and fall
of water in the glass gauge will only be half as deep, and if the pump
is forcing no water into the boiler the water in the gauge will be quite
still. Thus the depression of the water in the glass gauge will correspond
with the action of the force pump at every stroke.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Butler in the Great Seal Patent Office on
the 15th September 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
BUTLER, of the Town and County of the Town of Nottingham, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventeenth day of March, in the year
of our Lord One thousand cight hundred and seventy-one, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said John Butler, Her special licence, that I,
the said John Butler, my executors, administrators, and assigns, or such
others as the I, said John Butler, my 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,

page_text: and Isle of Man, an Invention for "IMPROVED MEANS AND APPARATUS FOR
INDICATING THE ACTION OF FORCE PUMP'S CONNECTED WITH STEAM BOILERS FOR
FEEDING THE SAME," upon the condition (amongst others) that I, the said
John Butler, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should par-
ticularly describe 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 Office within six calendar months next
and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said John Butler, do hereby declare
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, that is to say:
--
In carrying my Invention into practice I employ a glass gauge such
as is commonly used on steam boilers as a water gauge.
The manner in which the gauge and apparatus connected therewith is
caused to indicate the working or action of the force pump will be
readily understood from the following description, reference being had
to the Drawing hereunto annexed.
DECRIPTION OF THE DRAWING.
a is a small pipe furnished with a tap at a¹ and indicating dial a² and
pointer which moves over the face of the dial when the tap is turned.
The pipe a is connected to the feed pipe 6 which connects the force
pump with the boiler. The pipe a is inserted or connected at right
angles to the feed pipe b, the other end of the pipe a being inserted in
the bottom bearing or union joint of the water gauge c, the passage of
the pipe a into the gauge c coming opposite to the passage from the
gauge c into the boiler. When the tap a¹ is turned on and the force
pump is set to work the current in the feed pipe 6 in rushing past the
orifice to the smaller pipe a reduces the pressure therein by withdrawing
part of the water therefrom, thus causing the water in the gauge c to
fall, and at every stroke of the force pump the water is caused to throb
or fall and rise again in the glass tube or gauge. When the tap in the
pipe a is opened to the full the full stroke of the force pump will cause
the water in the tube or gauge c to fall from about 9 inches to 1 inch,
or any intermediate number of inches, according to the extent to which
the tap a is set or opened, as may be required. The fall and rise of the

page_text: water in the tube or gauge c will thus indicate the action of the force
pump at each stroke of the piston. If the pump is only acting with
half its force to force half the proper quantity of water into the boiler the
throb or descent and ascent of the water in the tube or gauge c will only
be half as deep as it should be where the force pump acting properly,
and if the force pump fails to force any water into the boiler the water
in the tube c will be quite still. Thus it will be seen that the depres-
sion of the water in the tube or gauge c will correspond with the action
of the force pump at every stroke, and thereby indicate its proper
action or otherwise.
Having thus described the nature of my Invention, and the manner
in which the same is carried into practice, I would have it understood
that I do not confine myself to the exact details herein described so long
as the main features or character of my Invention is retained, but what
I claim is, the arrangement of apparatus and method of indicating
the action of force pumps for feeding steam boilers, substantially in
the manner herein-before described and shown in the accompanying
Drawing.
In witness whereof, I, the said John Butler, have hereunto set my
hand and scal, this Twelfth day of September, in the year of our
Lord One thousand eight hundred and seventy-one.