Improvements in Feed Water Heaters.
Year: 1896

page_text: Date of Application, 25th Aug., 1896.
Complete Specification Left, 21st May, 1897- Accepted 3rd July, 1897.
PROVISUAAL DECIFIOREN
Improvements in Feed Water Heaters.
I, GEORGE THOMAS MUNDAY of Brenham in the County of Washington and State
of Texas, United States of America, Machinist, do hereby declare the nature of
this Invention to be as follows:-
This invention relates to feed water heaters for steam boilers and it has for its
object to provide such a heater having an arrangement of distributing troughs
located in such a manner as to evenly distribute the water over tubes in thin
streams or a thin sheet whereby it may be quickly heated and further in so con-
structing the parts that the interior portious comprising the circulating tubes
and troughs may be easily removed for the purpose of cleaning.
The shell of the heater is made of suitable boiler irou and having a removable
head. To the interior of the shell and on opposite sides thereof are bolted angle
rons which extend the entire length of the shell and form trucks for supporting
the tubes and providing means for removing the same as will be hereinafter more
clearly described. Within the shell is arranged a frame for supporting a series
of tubes. This frame comprises end pieces consisting of vertical bars and tran--
verse connecting rods and the two end frames are connected together by four longi-
tudinal rods which are threaded at their ends and provided with nuts engaging
against the opposite sides of the end frames whereby a rigid structure is obtained.
From the end of the frame brackets extend upwards and provide bearings for
transverse shafts upon the ends of which rollers are mounted and designed to eu-
gage with the tracks. The vertical portions of the end frames are provided with
vertically elongated slots and to the ends of the tubes are secured brackets having
at their upper ends outwardly extended hook portions adapted to pass through
the slot openings in the frame portions. The slots are of sufficient length to allow
the hook portions to pass through then and then by lowering the tubes the hook
portions will engage the outer edges of the frame portious. The several tubes are
open at the ends so that there may be a free circulation of the steam through them.
Extended longitudinally and above each of the upper tubes is a trough, the several
troughs being secured together by means of bolts or otherwise and they are sup-
ported by the eud frames in a similar manner to that of the tubes. The edges of
these troughs are preferably serrated which will cause the breaking up and fine
distribution of the water flowing from the troughs. The several troughs are con-
Jected with transverse equalizing troughs. The steam inlet pipes extend through
the upper portion of the shell and the water feed pipes lead through the upper por-
tion of said shell and extend downwards toward the troughs. Secured to the water
feed pipes just above the troughs are transverse troughs which receive water from
the pipes through the perforations in the lower portion of said pipes. The lower
portion of the shell is provided with an outlet blow-off pipe and below the series of
tubes and supported by the movable frame is a screen consisting of wire cloth and
designed to catch scale as it falls from the several tubes thus preventing the samo
from reaching to the bottom of the shell to interfere with the free circulation of
the water.
When it is desired to remove the series of tubes and troughs from the shell I
may employ extension tracks of a suitable length and having means to engage the
ends of the tracks when the head is removed and the outer ends of these track
extensions may be supported in any desired manner. The extension tracks are

page_text: provided with hook portions designed to engage in eyes formed in the ends of the
tracks within the shell. In operation the live steam will circulate freely through
the tubes so as to heat the water as near the temperature corresponding to the
boiler pressure as possible and effect the rapid formation of scale upon the outer
surfaces of the tubes.
When it is desired to remove the tubes and troughs 'for the purpose of cleaning
and also the screen for the purpose of removing the scale gathered thereon, the
head of the shell may be removed by first removing the fastening bolts and then
after attaching the extension tracks the whole interior mechanism may be readily
drawn out.
Dated this 25th day of August 1806
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.
Improvements in Feed Water Heaters.
I, GEORGE THOMAS MUNDAY, Machinist, of Brenham, in the County of Wash-
ington, and State of Texas, United States of America, do hereby declare the nature
of my invention and in what manner the samo is to be performed, to be partiou-
arly described and ascertained in and by the following statement:-
This invention relates to feed water heaters for steam boilers, and it has for its
object to provide such a heater having an arrangement of distributing troughs
located in such a manner as to evenly distribute the water over tubes in thin
streams or a thin sheet, whereby it may be quickly heated, and further in so con-
structing the parts that the interior portions comprising the circulating tubes and
troughs may be easily removed for the purpose of cleaning.
I will describe a heater embodying my invention and then point out the novel
features in the claims.
Referenco is to be had to the accompanying drawings forming a part of this
specification, in which similar characters of reference indicate corresponding
parts in all the views.
Figure 1 is a transverse section of the device substantially on the line 1--1 of
Figure 2;
Figure 2 is a longitudinal section;
Figure 3 is a portion of one of the supporting frames;
Figure 4 shows the tube supporting bracket; and
Figure 5 is a detail showing the means of attaching the extension tracks.
Referring to the drawings, A designates the shell of the heater of suitable
boiler iron and having a removable head A. To the interior of the shell, and on
opposite sides thereof are bolted angle irons a, which extend the entire length of
the shell and form tracks for supporting the tubes, and providing means for re-
moving the same as will be hereinafter more clearly described.
Within the shell is arranged a frame for supporting a series of tubes B. This
frame comprises end pieces consisting of vertical bars B and transverse connect-
ing rods b, and the two end frames are connected together by four longitudinal
rods b', which are threaded at their ends and provided with nuts engaging against
the opposite sides of the end frames, whereby a rigid structure is obtained. From
the end of the frame brackets & extend upwards and provide bearings for trans-
verse shafts 3, upon the ends of which rollers 6' are mounted and designed to
engage with the tracks a.
The vertical portions B₁ of the end frames are provided with vertically elongated
slots 65, and to the ends of the tubes B are secured brackets B having at their

page_text: upper ends outwardly extended hook portions 66, adapted to pass through the slot
openings in the frame portions B¹.
It will be seen that the slots are of sufficient length to allow the hook portions
to pass through them and then by lowering the tubes, the hook portions will engage
the outer edges of the frame portions B. The several tubes B are open at the ends,
so that there may be a free circulation of the steam through them. Extended
longitudinally and above each of the upper tubes B, is a trough B³, the several
troughs B being secured together by means of bolts or otherwise, and supported
by the end frames in a similar manner to that of the tubes. The edges of these
troughs B are preferably serrated, as shown at b, which will cause the breaking
up and fine distribution of the water flowing from the troughs. The several
troughs B are connected with transverse equalizing troughs d.
C indicates the steam inlet pipes extended through the upper portion of the
shell A and C indicates the water feed pipes leading through the upper portion of.
said shell and extended downwards toward the troughs B3. Secured to the
pipes C, just above the troughs B are transverse troughs c which receive water
from the pipes C through the perforations in the lower portion of said pipes.
The lower portion of the shell A is provided with an outlet blow-off pipe c',
and below the series of tubes and supported by the movable frame, is a screen C³,
consisting of wire cloth, and designed to catch scale as it falls from the several
tubes, thus proventing the same from reaching to the bottom of the shell to inter-
fere with the free circulation of the water.
When it is desired to remove the series of tubes and troughs from the shell, I
may employ extension tracks C (figure 5) of a suitable length and having means
to engage the ends of the tracks a when the head A is removed, and the outer ends
of these track extensions may be supported in any desired manner. I have
here shown the extension tracks as provided with hook portions, designed to
engage in eyes formed in the ends of the tracks within the shell.
In operation the live steam will circulate freely through the tubes, so as to hent
the water as near the temperature corresponding to the boiler pressure as possible,
and effect the rapid formation of scale upon the outer surfaces of the tubes.
When it is desired to remove the tubes and troughs for the purpose of cleaning
and also the screen C for the purpose of removing the scale gathered thereon, the
head A' of the shell A may be removed by first removing the fastening bolts and
then after attaching the extension tracks C³, the whole interior mechanism may be
readily drawn out.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I clnim
is:-
1. A feed water heater, comprising a shell, tracks arranged longitudinally
therein, a frame comprising vertical end pieces within the shell having rollers
engaging the said tracks, a series of tubes supported by said frame and removable
therewith, troughs supported by the frame above the tubes and extended parallel
therewith and also removable with the frame, steam' inlet pipes, water inlet pipes
leading through the upper portion of the shell, and transverse troughs supported
by the lower ends of the said water pipes' above the first named troughs, substan-
tially as specified.
2. A feed water heater, comprising a shell, having a removable head, trucks
arranged longitudinally in said shell, a frame comprising vertical end pieces hav-
ing rollers engaging the said tracks, circulating tulies open at the ends and having
removable engagement with the vertical end pieces of longitudinally extended
troughs supported by the frame above the tubes and removable therewith, steam
inlet pipes, water inlet pipes, and transverse troughs for receiving water from the
water pipes and discharging the same into the longitudinal troughs, substantially
as specified.
3. A feed water heater, comprising a shell, a frame consisting of vertical end
pieces removably supported therein, circulating tubes removable with the frame

page_text: and removably connected to the end pieces, and distributing troughs supported by
the frame above the tubes and having serrated edges, substantially as specified.
4. A feed water heater, comprising a shell, a frame removably mounted therein.
and comprising vertical end pieces provided with slot openings, a series of tubes
open at the ends and having hook-shaped brackets to engage in the said slots,
steam inlet pipes, water inlet pipes, and transverse troughs for receiving water
from said water pipes, substantially as specified.
5. In a feed water heater, a shell, a carriage comprising vertical end pieces
removably mounted therein, a series of circulating tubes supported by vertical
end pieces of said curriage, a series of distributing troughs supported by said car-
riage abovo the tubes, and communicating one with another, and means for feed-
ing steam and water to the interior of the shell, substantially as specified.
6. In a feed water heater, a shell having a removable head, tracks secured hori-
zontally in said shell and having eyes formed in the ends near the removable
heads, extension tracks having hooks for engagement with the tracks within the
shell, and a tube supporting frame movable on said tracks, substantially as
specified.
TAL: od 1...
TONY
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.