IMPROVEMENTS IN BOILER FITTINGS, ALSO PARTLY APPLICABLE FOR OTHER PURPOSES.
Year: 1872

page_text: LETTERS PATENT to Richard Bewley, junior, of Uttoxeter, in the
County of Stafford, for the Invention of "IMPROVEMENTS IN BOILER
FITTINGS, ALSO PARTLY APPLICABLE FOR OTHER PURPOSES.
F
PROVISIONAL SPECIFICATION left by the said Richard Bewley at the
Office of the Commissioners of Patents, with his Petition, on the
12th November 1872.
'. I, RICHARD BEWLEY, junior, of Uttoxeter, in the County of Stafford,
do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN BOILER FITTINGS, ALSO PARTLY APPLICABLE FOR OTHER PURPOSES," to be as
follows:-
One object of this Invention is to make a valve, to be used instead of
an ordinary gauge cock, which will not be liable to become choked by
the deposit of sediment, and the working surfaces of which can be
ground without removing the valve from its place, thus securing
increasd safety, durability, and economy. This object I secure by

page_text: employing a conical valve on the inner end of the valve casing which is
inside the boiler, there being then no part of the said boiler fitting in
which sediment can be deposited. The act of opening the valve (by
pressing it inwards against a spiral or other spring which tends to keep
it against its seat) will displace any scale sticking to the edge of the
valve, and should any of the scale stick on the seat of the valve so as to
prevent its closing, or should the valve or seating be injured, the scale
can be crushed and removed and the valve ground by rotating it on its
axis. This valve is suitable for many other purposes.
Another object of this Invention is an improved water gauge for steam
boilers, which will not be liable to be choked by the deposit of sediment.
This object I attain by making in addition to the usual connection with
the boiler at the top and bottom of the glass tube, a third connection at
a convenient distance below the lowest of the above-mentioned con-
nections, and by joining this third connection with the connection at the
bottom of the glass tube by means of a metal tube. By this means I
secure a constant circulation of water through the bottom part of the
gauge, which will effectually prevent the deposition of sediment in it.
The gauge may be made with ordinary cocks or with any improved
valves, the novelty being the facility afforded for the circulation of the
water through the bottom part of the gauge, and the consequent pre-
vention of incrustation therein.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Richard Bewley in the Great Seal Patent Office
on the 10th May 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
BEWLEY, junior, of Uttoxeter, in the County of Stafford, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twelfth day of November, in the year
of our Lord One thousand eight hundred and seventy-two, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Richard Bewley, junior, Her special
licence that I, the said Richard Bewley, junior, my executors, adminis-
trators, and assigns, or such others as I, the said Richard Bewley, junior,
my executors, administrators, and assigns, should at any time agree with,

page_text: 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 BOILER FITTINGS, ALSO PARTLY APPLICABLE FOR OTHER PURPOSES," upon the
condition (amongst others) that I, the said Richard Bewley, junior, my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly 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 Richard Bewley, junior, 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, reference being had to the accompanying
Drawings, and to the letters of reference marked thereon, that is to
say:
The first part of my Invention consists of an arrangement of valves
designed to replace the taps or cocks now generally used as gauge cocks
on steam boilers as air or vaccuum cocks, and for other purposes.
Gauge cocks, as usually constructed, are liable to become stopped or
choked by the deposition of sediment in the part of the shell or barrel
open to the boiler; they are also liable to leak through the unequal
wear or expansion of the shell and plug. Now I remedy these defects
by using a valve, by preference conical, instead of a cock, the seating of
the said valve to be formed on the extreme end of its shell or casing,
which is inside the boiler, and also by providing means by which the
valve can be turned on its axis whilst in its place. By this means the
communication between the boiler and the shell of the valve is cut off,
and therefore no deposit of sediment can take place in it. Any scale
that may be deposited on the surface of the valve which is exposed to
the water in the boiler will be broken by the action of opening the valve,
and should any of this scale or sediment remain on the valve seat so as
5 to prevent the valve from shutting tightly, such obstruction will be
reduced and removed and the valve ground true to its seat by turning
the valve on its axis. These valves are applicable to many purposes
besides those mentioned above.

page_text: The second part of my Invention relates to an improvement in water
gauges for steam boilers, with the view or object of preventing their
being stopped or choked by the deposit of sediment. It consists in
making an additional connection or communication with the boiler
below the lowest communication of an ordinary water gauge, and con-
necting the bottom of the said gauge with the additional opening into
the boiler by means of a suitable tube and a cock. By this means there
will be two communications between the boiler and the gauge below the
usual level of the water, and because of the difference in heat or density
of the water at these two places, or partly or wholly because of the
cooling influence of the atmosphere at the outer connection between the
two aforesaid openings, there will be a continual flow of water out of
the upper of these two openings down the connecting pipe between
the two, and into the boiler through the lower of the two openings.
This current of water will effectually prevent the stoppage of the water-
way by the deposition of sediment, a cause of frequent annoyance and
danger in ordinary water gauges.
button, nut, or
And in order that this my Invention may be more fully understood, I
now proceed more particularly to describe the mode of carrying out my
Invention with reference to the accompanying Drawings, where Figs. 1,
2, and 3 shew respectively an elevation, end view, and longitudinal
section of a valve made according to my Invention for letting air out of
hot water pipes, or for similar purposes. A is the shell or casing, the
lower end of which is screwed externally with a suitable thread to screw
into the hole made in the hot water pipe; on this end of the shell is also
formed the valve seat for the reception of the valve B. On the end of
the valve spindle furthest from the valve is fixed the
handle C. The upper end of the shell is chambered or bored out to a
diameter greater than that of the valve spindle, and into this enlarged
part of the shell is fitted the boss on the under side of the button C. A
spiral spring D is placed in the chamber surrounding the valve spindle,
and pressing the button C upwards, holds the valve shut. Fig. 4 shews
one of these valves at A fixed on top of the pipe B, which represents
part of a hot water apparatus where air would be liable to accumulate.
To let the air out of the pipe all that is required is to press down the
button of the valve, when the air will pass by the valve and out of the
hole E in the shell A (Fig. 3). On removing the pressure from the
button C, the spring D will close the valve.

page_text: Figs. 5, 6, and 7 shew a side view, end view, and longitudinal section
of a gauge valve made according to my Invention for testing the height
of water in steam boilers, or for similar purposes. The general arrange-
ment is similar to that described above. A is the shell screwed at one
end for fixing it to the front of the steam boiler; B is the valve; C, the
button or handle; and D, the spiral spring; E is the "bib" or spout
through which the steam, water, or other fluid flows when the valve is

page_text: Figs. 17 and 18 shew an end view and longitudinal section of an
improved range cock or valve. A is the shell; B, the valve; C is the
hand wheel, on one side of which is formed the long boss D, the outside
of which is screwed to fit the internal screw in the boss E, formed in the
shell A. The valve is opened by the end of the boss D pressing against a
the collar F, formed on the valve spindle when it is screwed into the
shell A. In the inside of the boss D is formed a chamber for the
reception of the spiral spring G. H is the nut or button fixed on the
end of the valve spindle, by means of which the valve can be rotated on
its axis. I, I, are two lock nuts fitted on to the screwed tail of the
shell A for fixing the valve to the boiler or cistern.
Figs. 19 and 20 shew a range valve in clevation and section similar to
the last described, except that the screw arrangement for opening and
shutting is dispensed with. A is the shell; B, the valve; C, the button;
D, the spring; and E, E, the lock nuts.
Fig. 21 illustrates the second part of my Invention, being an improve-
ment in an ordinary water gauge for steam boilers. A is part of the
front of a boiler; B, the upper cock; C, the middle cock; and D, the
lower cock. E is the tube connecting the middle and lower cocks; and
F is the glass tube for showing the height of the water. The tube E
being exposed to the air will cause the water contained in it to be
slightly cooler than the water in the boiler; it will consequently be
specifically heavier, and this will cause it to flow down the tube E and
into the boiler through the lower opening, its place being occupied by
warmer water flowing from the boiler through the cock C. Thus a
constant current will be established in the direction indicated by the
arrows, which will prevent the deposition of any sediment in the gauge.
And having thus fully described the mode of carrying into effect my
said Invention for "Improvements in Boiler Fittings, also partly Appli-
cable for other Purposes, I declare that I claim,-
Firstly. The construction and arrangement of valves so as to expose
the parts at or near the seat to a free current of the liquid in order to
prevent deposit of sediment there, and so as to remove sediment if there
formed, and to grind them without removal, all substantially as herein-
before set forth.

page_text: Secondly. Constructing water gauges for steam boilers with an extra
lower communication or branch, all substantially as and for the purposes
herein-before set forth.
In witness whereof, I, the said Richard Bewley, junior, have
hereunto set my hand and seal, this Sixth day of May, in the
year of our Lord One thousand eight hundred and seventy-three.
R. BEWLEY. Jun. (L.S.)