An Improved Feedwater Purifier and Heater for Steam Boilers.
Year: 1888

page_text: An Improved Feedwater Purifier and Heater for Steam Boilers.
I RICHARD WITHINGTON BROMILEY SANDERSON of Office D Royal Exchange
Manchester in the County of Lancaster Cotton Merchant, a communication to me
from abroad by John O'Brien and Samuel J. Weaver both of St. Louis Missouri
United States of America Engineers, do hereby declare the nature of this Invention
to be as follows:-
This invention relates to an improved construction of apparatus for supplying boilers
with feedwater which tends to prevent the formation of scale and at the same time
renders impossible the contact of cold water with the flues shell or plates of a hot
boiler.
of
This improved feedwater purifier and heater is a vessel or apparatus made preferably
gun metal and conoidal in form with a series of rings or ledges on its outer surface.
It is secured to the top of the boiler above the water line and by preference over the
mud-drum or blow-off. The feedwater supplied to the boiler by a pump or injector as
the case may be passes through a central feed pipe to the bottom of the vessel from
which it overflows through openings covered with a cap or deflector near the top and
falls slowly over the series of rings or ledges into the hot water and avoids direct
contact with the flues or shell of the boiler.
By the use of this improved feedwater purifier and heater shell cracks occasioned
by sudden contractions are absolutely prevented as all the feedwater is partially heated
before it comes in contact with the flues or shell of a heated boiler.
Dated this 20th day of March 1888

page_text: COMPLETE SPECIFICATION.
An Improved Feed Water Purifler and Heater for Steam Boilers.
I RICHARD WITHINGTON BROMILEY SANDERSON of Office D Royal Exchange
Manchester in the County of Lancaster Cotton Merchant a communication to me
from abroad by John O'Brien and Samuel J. Weaver both of St. Louis Missouri
United States of America Engineers, 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 an improved construction of apparatus for supplying boilers
with feed water which tends to prevent the formation of scale and at the same time
renders impossible the contact of cold water with the flues shell or plates of a hot
boiler.
This improved feed water purifier and heater is a vessel or apparatus made preferably
of gun metal and conoidal in form with a series of rings or ledges on its outer surface.
It is secured to the top of the boiler above the water line and by preference over the
nud-drum or blow-off. The feed water supplied to the boiler by a pump or injector as
the case may be passes through a central feed pipe to the bottom of the vessel from
which it overflows through openings covered with a cap or deflector near the top and
falls slowly over the series of rings or ledges into the hot water and avoids direct
contact with the flues or shell of the boiler.
By the use of this improved feedwater purifier and heater shell cracks occasioned
by sudden contractions are absolutely prevented as all the feedwater is partially heated
before it comes in contact with the flues or shell of a heated boiler.
And in order that this Invention may be fully understood and readily carried into
effect I will describe the accompanying Sheet of Drawings reference being had to the
figures and letters marked thereon.
Figure 1 is an elevation of part of a boiler with a portion of the shell removed to
show an improved feed water purifier and heater made according to this Invention and
Fig. 2 is a vertical section of the said apparatus.
The apparatus consists of a central pipe a which is screwed into a plate b secured
by bolts to the shell c of the boiler through which the pipe a is also screwed. On
to this pipe inside the shell is screwed the cap or deflector d and below this but also
on the pipe a is screwed the conoidal vessel e which has a series of rings or ledges e
on its exterior. The lower end of the pipe a stands slightly above the bottom of the
vessel e and around the neck of the vessel e beneath the cap d are a series of
openings e².
The water supplied to the boiler by a pump or injector through the feed pipe
passes down the pipe a into the bottom of the vessel e whence it overflows through the

page_text: openings and being guided by the cap d falls over the rings or ledges el into the hot
water in the boiler.
Having now particularly described and ascertained the nature of this said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is
The improved feed water purifier and heater for steam boilers consisting of a conoidal
vessel provided with a series of external rings or ledges and having near the top
openings covered by a cap or deflector whereby the water supplied centrally to the
bottom of the vessel overflows through the openings near the top and falls over the
rings or ledges substantially as herein shown and described.
H. B. BARLOW,
17, St. Ann's Square, Manchester,
Agent for Applicant.