An Improved Apparatus for Injecting into Steam Boilers, through the Feed Water Pipe, any Liquid "Boiler Com- position" or Fluid for Preventing Incrustation or Scale
Year: 1884

page_text: An Improved Apparatus for Injecting into Steam Boilers,
through the Feed Water Pipe, any Liquid "Boiler Com-
position" or Fluid for Preventing Incrustation or Scale
PROVISIONAL SPECIFICATION,
We, CHARLES JOHN ARNELL, and William THOMAS ARNELL, both of Newport,
in the Isle of Wight, in the County of Southampton, Millers, do hereby declare
the nature of the said Invention for "AN IMPROVED APPARATUS FOR INJECTING
INTO STEAM BOILERS, THROUGH THE FEED WATER PIPE, ANY. LIQUID 'BOILER
COMPOSITION' OR FLUID FOR PREVENTING INCRUSTATION OR 'SCALE' ON THE
SURFACES OF THE BOILER AND FEED WATER PIPE," to be as follows:-
This invention relates to improvements in the construction and arrangement of
apparatus for injecting into steam boilers, whilst under pressure, through the feed
water pipe, any liquid boiler composition or fluid for preventing incrustation or
scale on the surfaces of boilers and feed water pipes in connection therewith.
The baid apparatus is controllable and automatic, and consists of a vessel A. to
contain the liquid to be injected, a tap B., to regulate the supply of the same and a
pipe D. with the back check valve C. connecting the said vessel A. with the barrel
of the feed water pump E.
The action of the feed pump will draw the fluid from the container A., its
return being prevented by the back check valve C., and will force it into the
boiler diluted with the feed water.

page_text: An Improved Apparatus for Injecting into Steam Boilers,
through the Feed Water Pipe, any Liquid "Boiler Com-
"
position or Fluid for Preventing Incrustation or Scale
"
We, CHARLES JOHN ARNELL, and WILLIAM THOMAS ARNELL, both of Newport,
in the Isle of Wight, in the County of Southampton, Millers, do hereby declare the
nature of our invention for AN IMPROVED APPARATUS FOR INJECTING INTO STEAM
BOILERS, THROUGH THE FEED WATER PIPE, ANY LIQUID 'BOILER COMPOSITION' OR
FLUID FOR PREVENTING INCRUSTATION OR SCALE ON THE SURFACES OF THE BOILER
AND FEED WATER PIPE," and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
Our said Invention consists of an apparatus for injecting into steam boilers,
whilst under pressure, through the feed water pipe, any liquid boiler composition
or fluid for preventing incrustation or scale on the interior surfaces of boilers and
feed water pipes in connection therewith.
In the following description reference is made to the drawing lodged with this.
application and the provisional specification accompanying the same.
The said apparatus, which is controllable and automatic in its action, consists of
a vessel A. to contain the liquid to be injected, a tap B. to regulate the supply of
the same, and a pipe D. with the back check valve C. connecting the said vessel A.
with the barrel of the feed water pump E. or the intake pipe of the injector.
The vessel A. is arranged in a position above the point of connection of the
pipe D. with the barrel of the feed water pump, and the tap B. is situated at the
lower portion of the said vessel, that portion of the pipe D., which is between the
valve C. and the barrel of the feed water pump, is horizontal, whilst the remaining
portion of the said pipe, which is between the valve C. and the vessel A., is carried
downwards in a curved or other similar form below the said horizontal portion.
The action of the feed water pump or injector will draw the fluid from the
container A. and will force it into the boiler diluted with the feed water the return
of the fluid being prevented by the back check valve C.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is
First. The arrangement of a vessel for containing fluid, of the nature herein-
before referred to, in connection with the barrel of the feed water pump or injector
of steam boilers, in such a manner that the liquid is drawn from the said vessel by
the action of the pump or injector whilst its return is prevented by a suitable
valve, substantially as, and for the purposes, herein before described.

page_text: And Secondly. The construction of the apparatus consisting of the vessel A., the
tap B., the valve C. and the pipe D. and the arrangement thereof in connection
with the barrel of the feed water pump or injector of steam engines, substantially
as, and for the purposes, hereinbefore described and shown in the drawing
referred to.