IMPROVEMENTS IN WATER PURIFIERS FOR STEAM. BOILERS
Year: 1882

page_text: LETTERS PATENT to George Frederick Redfern of the General Patent Office,
4 South Street, Finsbury, in the county of Middlesex, Patent Agent for an
Invention of "IMPROVEMENTS IN WATER PURIFIERS FOR STEAM. BOILERS"
A communication to him from abroad by David Hanna of Ogdensburg,
county of St. Lawrence, state of New York, United States of America.
PROVISIONAL SPECIFICATION left by the said George Frederick Redfern
at the Office of the Commissioners of Patents on the 23rd October 1882.
"
GEORGE FREDERICK REDFERN, of the General Patent Office, 4, South Street,
Finsbury, in the County of Middlesex, Patent Agent "IMPROVEMENTS IN WATER
PURIFIERS FOR STEAM BOILERS [A communication to him from abroad by David
Hanna, of Ogdensburg, county of St. Lawrence, state of New York, United
States of America.]
The object of this invention is to effect the separation from the water intro-
duced into steam boilers of the impurities contained therein and the convenient
collecting and withdrawing of the said impurities therefrom thereby avoiding the
deposit of saline or other matter upon the heating pipes or bottom and other
portions of the boiler thus keeping it and them free from incrustation so destructive
to boilers.
In carrying out the invention a spraying device or nozzle is employed affixed to
the feed pipe and arranged within the steam chamber of the boiler, and having an
upper and under conical plate, the latter provided with graduated openings
increasing in size from the centre to the circumference whereby the feed water will
be evenly fed into the steam space of the boiler, the said nozzle having a circum-
ferential rim extending downward towards the collecting basin to arrest the
discharge from the said nozzle from being thrown outside the said basin.
A funnel or basin is provided arranged within a steam boiler so as to catch and
convey away the sediment discharged from the spraying nozzle or other feeding
device discharging into the steam space of the said boiler and having a pipe
ED..

page_text: 'supplied with blow off cock to discharge the sediment outside the said boiler and a
retreating upper edge to prevent the matter held in the said basin from being
thrown therefrom.
The feeding device or nozzle affixed to, the feed water pipe of the boiler and
arranged within the steam chamber of the boiler is provided with a blow off cock.
The nozzle is provided with a lower conical surface as well as an upper conical
surface, its lower surface having a series of graduated perforations increasing in.
size towards the outer edge of the nozzle and a circumferential rim extending
downwards towards the sediment collecting basin. This construction throws the
greater portion of the water towards the outer edge of the nozzle whence it is fed
into the boiler, meeting a body of hot steam which converts the feed water into vapour
and causes the sediment or impurities contained therein to separate therefrom and
fall within the said collecting basin; the said rim preventing its being thrown outside
the said basin. The nozzle may have its lower surface bolted to and removeable
from the upper plate to permit the ready cleansing of the nozzle or removal for
other purpose of the lower plate, though usually the blow-off cock will prove
sufficient for the removal by means of the force of steam in the boiler, of any
sediment lodging in said nozzle.
The sediment collector basin is preferably of a saucer or funnel shape with
retreating upper edge, arranged under and at a short distance from the nozzle
having its mouth above the water line so as to catch the discharge from the said
nozzle and attached to and discharging into a pipe leading through the shell of the
boiler and provided outside thereof with a blow off cock to remove the sediment
therefrom.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by.
the said George Frederick Redfern in the Great Seal Patent Office on the
9th April 1883.
GEORGE FREDERICK REDFERN, of the General Patent Office, 4, South Street,
Finsbury, in the county of Middlesex, Patent Agent " IMPROVEMENTS IN WATER
PURIFIERS FOR STEAM-BOILERS "A communication to me from abroad by David
Hanna, of Ogdensburg, county of St Lawrence, state of New York, United States of
America
The object of this invention is to effect the separation from the water intro-
duced into steam boilers of the impurities contained therein and the convenient
collecting and withdrawing of said impurities therefrom, thereby avoiding the
deposit of saline or other matter upon the heating pipes or bottom and other
portions of the boiler, thus keeping it and them free from incrustation so destructive
to boilers..
In carrying out the invention a spraying device or nozzle is employed affixed to
the feed pipe and arranged within the steam chamber of the boiler and having an
upper and an under conical plate, the latter provided with graduated openings.
increasing in size from the centre to the circumference whereby the feed water will
be evenly fed into the steam space of the boiler and said nozzle having a circum-
ferential rim extending downward towards the collecting basin hereinafter
described to arrest the discharge from the said nozzle from being thrown outside
the said basin.
A funnel or basin is provided arranged within a steam boiler so as to catch and
convey away the sediment discharged from the spraying nozzles or other feeding
device discharging into. the steam space of the said boiler and having a pipe
supplied with a blow off cock to discharge the sediment outside the said boiler, and
a retreating upper edge to prevent the matter held in the said basin from being
thrown therefrom.
In order to enable the invention to be better understood I will proceed to
describe the same by reference to the accompanying drawing in which figure 1,
represents a longitudinal section of a boiler with the improved water purifier in
position within the same; figure 2, is a transverse section of the same taken on the
line A, B, of figure 1, and figure 3, is a plan of the underside of the spraying or
feeding device proper. Similar letters in all the figures represent similar parts.
B, is the feeding device or nozzle affixed to the feed water pipe a, of the boiler. A,
and arranged within the steam chamber of the boiler, and provided with a blow off
cock b¹, The nozzle B, is provided with a lower conical surface A¹, as well as an
upper conical surface A², its lower surface having a series of graduated perforations
increasing in size towards the outer edge of the nozzle, and a circumferential rim
extending downwards towards the sediment collecting basin. This construction
throws the greater portion of the water towards the outer edge of the nozzle,
whence it is fed into the boiler, meeting a body of hot steam, which converts the
feed water into vapour and causes the sediment or impurities contained therein to
separate therefrom and fall within the said collecting basin the said rim preventing
its being thrown outside the said basin. The nozzle B, may have its lower
surface A¹, bolted to and removeable from the upper plate as at b, (figure 3) to
permit the ready cleansing of the nozzle or removal for other purpose of the lower
plate; though usually the blow off cock b', will prove sufficient for the removal by
means of the force of steam in the boiler, of any sediment lodging in the said
nozzle. C, is the sediment collector basin preferably of a saucer or funnel shape

page_text: with retreating upper edge, arranged under and at a short distance from the
nozzle B, having its mouth above the water line so as to catch the discharge from
the said nozzle and attached to and discharging into a pipe cl, leading through the
shell of the boiler and provided outside thereof with a blow off cock b², to remove
the sediment therefrom.
Having thus described the invention and the manner of performing the same
what is claimed, and intended to be protected by the herein in part recited Letters
Patent is :-
Firstly. In a water purifier for steam boilers the combination with a sediment
collecting basin arranged within said boiler, of the nozzle B, having an upper and
under conical plate, the latter provided with graduated openings, and descending
rim connected with blow off cock b', substantially as and for the purpose herein-
before described and represented in the accompanying drawing
Secondly. In a water purifier for steam boilers the combination with a spraying
nozzle or other feeding devico discharging into the steam, space thereof, of the
funnel or basin c, with retreating upper edge, and having the blow off pipe c!, and
valve or cock 62, substantially as and for the purpose hereinbefore described and
represented in the accompanying drawing.
Thirdly. The combination in a steain boiler of the nozzle B, consisting of an
upper conical imperforate plate A³, and an under conical plate A', provided with
perforations increasing in size from the centre towards its periphery, having feed
water pipe a, and descending rim and discharging into the steam space with the
pan or collector 6, and blow off pipe c', substantially as and for the purpose herein-
before described and represented in the accompanying drawing.
j
In Witness Whereof I the said George Frederick Redfern have hereto set
iny hand and seal this ninth day of April, in the year of our Lord one
thousand eight hundred and eighty three
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