Improvements in Apparatus for Supplying Anti-incrustating Liquids to Boilers.
Year: 1889

page_text: Date of Application, 7th Nov., 1889
Complete Specification Left, 7th June, 1890-Accepted, 12th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Supplying Anti-incrustating Liquids
to Boilers.
I, ROBERT GOODBODY, of Upton, Clara, King's County, Ireland, Jute Spinner, do
hereby declare the nature of this invention to be as follows:-
This invention relates to the construction and arrangement of apparatus capable of
regulation by means of one tap, whereby a liquid compound is automatically and
regularly discharged from a receptacle, and caused to flow along with the feed water
to the boiler for the very desirable object of preventing or greatly reducing the
formation of scale in boilers, and for the purpose of separating such scale when so
formed from the plates so that the same can be removed without resorting to
the use of implements which are injurious to the plates of which the boiler is
composed.
My improvement consists of a vessel having a vertical connection between the
same and feed pipes, a stop tap being placed near to the feed pipes, and a portion of
the connection formed of glass tube. Below the glass tube a passage is made which
is in connection with an internal pipe extending to the bottom of the vessel,
terminating below the top of another internal pipe in connection with a clearing cock
fixed at the bottom of the vessel.
The vessel is filled with anti-incrustating liquid through a filling cup and tap, and
on opening the first named tap, water from the feed pipes enters the vertical
connection, and on passing through the internal pipe to the bottom of the vessel the
anti-incrustating liquid is displaced, the liquid passing through the vertical connection
into the feed pipes entering the boiler along with the feed water.
The connection of the apparatus with the feed pipe may be made for convenience
at right angles to the feed pipe, in which case an elbow would intervene between the
pipe and the vertical connection with the vessel above referred to.
Dated this 4th day of November 1889.
JOHN WAUGH,
Agent.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Supplying Anti-incrustating Liquids
to Boilers.
1, ROBERT GOODBODY, of Upton, Clara, King's County, Ireland, Jute Spinner,
do hereby declare the nature of this invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to the construction and arrangement of apparatus whereby
a liquid compound is automatically and regularly discharged from a receptacle, and
caused to flow along with the feed water to the boiler, for the very desirable object
of preventing or greatly reducing the formation of scale in boilers: and also for
the purpose of separating such scale when so formed from the plates, so that the
same can be removed without resorting to the use of implements which are
injurious to the plates of which the boiler is composed, and thereby materially
adding to the efficiency of the boiler and effecting a great saving of labour.
In order to accomplish my object, I have tried several well-known sight feed
lubricators used for the lubrication of the internal surfaces of engine cylinders and
valves, but none of these would answer my requirements.
My improvement consists of a vessel having an internal pipe suitably connected

page_text: :
with the feed pipe through which the feed water is made to pass to a boiler or to
a range of boilers. The vessel has a vertical outlet from the apparatus to the feed
pipe, a certain length of such vertical connection being of glass, in order that there
may be evidence of the duty performed by the apparatus.
The bottom of the vessel is provided with a clearance cock which has a pipe
carried up inside to a point above the bottom of the receptacle: branching from the
vertical connection with the feed pipe a passage is made in connection with a pipe
passing through the interior and terminating near the bottom of the vessel below the
top of the before named pipe connected to the clearance cock.
This invention is illustrated by the accompanying drawings in which the figures
represent vertical central sectional views of apparatus embodying my invention similar
letters indicating corresponding parts in each illustration.
In each drawing the letter A. indicates the vessel for containing the liquid compound
to be delivered to the feed water flowing through the feed pipe E. to a boiler or range
of boilers.
The vessel A. is provided with a cover having a vertical tubular connection
with the feed pipe, which connection is for a part or all of its length transparent.
As here shown the connection comprises a vertical passage P. in the cover cap,
and a glass tube S. communicating at its lower end with the said passage, and at its
upper end in Fig. 1. with a tubular branch K. leading down to and through the cover
cap and connected with a tube M. which is bent in the interior of the vessel and
terminates in proximity to the bottom of the vessel A.
A coupling J. in each drawing completes the communication between the glass
tube S. and the feed pipe E. An outlet or clearance cock is attached to the bottom
wall of the vessel A. and is provided with a pipe extension D. rising a short distance
in the vessel above the inside of its lowermost portion and above the lower extremity
of the tube M. in such manner that a water seal as at W. is constantly preserved at
the lower end of the said tube.
The branch K. is provided with a valve or tap L. and the cover cap with a filling
cup N. for supplying the vessel A. while a valve or tap F. in the coupling J. controls
communication between the feed pipe, the branch K. and vertical connection or
passage S. A valve or tap R. is placed in the passage P. to control communication
between the tube S. and vessel A. The transparent tube S. may be secured by
coupling rings Q. or other well known means.
In Fig. 2. the passage between the feed pipe E. and coupling J. to the tube M. is
made by an opening branching below the transparent glass tube S. the tube M.
terminating below the top of pipe D.
In operation with either arrangement, the vessel A. is supplied through the filling
cup N. with a liquid compound lighter than water, which compound floats on the
water that cannot leave the vessel below the upper end of the pipe extension D. whereby
the lower end of the tube M. is constantly immersed in the water below the liquid
compound floating thereon.
In Fig. 1. on the valve or taps F and L. being opened communication is established
with the bottom of the vessel by the tube M. and on opening the valve or tap R. the
light compound is injected through the vertical connection P. S. and J. and the com-
pound on entering the feed pipe amalgamates with the water passing therethrough to
the boiler or boilers.
In Fig. 2. on opening the valve or tap F. communication is made with the bottom
of the vessel through bent tube M. and on opening a valve or tap in vertical passage P.
placed in a similar position as R. in Fig. 1. the light compound is injected to the feed
-pipe where it amalgamates with the water.
By connecting the tube M. and bending same somewhat as shown by Fig. 2. the hot
water from feed pipe E. is conveyed more directly to the said tube, and by bending
the same to obtain more length more heat is imparted to the hydrocarbonous oil, thereby
heating the same to some extent so that it leaves the vessel A. more freely and
regularly than when a pipe is used as shown in Fig. 1.
The source of pressure that produces the injection jet causing the liquid compound

page_text: to leave the vessel A. and pass through the vertical connection into the feed pipes is
due to the difference in the specific gravity of the water and liquid compound, all
liquids of an oily nature being lighter than water.
Water being the heavier is conveyed by tube M. to the bottom of the vessel A. the
oily compound floating on the water, and is displaced and caused to pass through
the opening into vertical connection by the difference in the weight of a column of
water in tube M. and the weight of a column of liquid compound of equal
depth in the vessel A. The water being heavier settles to the bottom and forces
the liquid compound through the vertical connection at a rate proportionate to the
opening of valve R.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination and arrangement of parts of an automatic injector having a
direct vertical connection between the vessel A. and pipe E. and a passage between
such vertical connection and the bottom of vessel A. all arranged substantially in the
manner and for the purpose herein before set forth.
2. The combination with the feed water pipe for a boiler of vessel A. for injecting
into the feed pipe and boiler a liquid compound to reduce the formation of scale, a
clearance cock C. at the bottom of the vessel having a pipe extension rising in the
vessel, an internal tube M. and a vertical tubular connection comprising a transparent
part communicating with the vessel and feed pipe.
Dated this 4th day of June 1890.
JOHN WAUGA,
Agent.