Year: 1887

page_text: Date of Application, 15th Aug., 1887
Complete Left, 15th May, 1888
Complete Accepted, 13th July, 1888
1, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents'
Southampton Buildings in the County of Middlesex, do hereby declare the nature
of this invention to be as follows :-
My improvement relates more particularly to steam generators in which a number
of tubes are arranged on an incline and subjected to the heat from a furnace. These
tubes are connected at their ends by means of headers and certain of the headers are
united and connect with a steam and water drum so that water when sufficiently
heated and steam may descond through such inclined tubes and rise through the
headers to which the uppermost ends of the tubes are connected into the steam and
water drum and the cooler water will return through the headers to which the lower
ends of the inclined tubes are connected into such tubes.
The headers which are at the sides may be continuous from top to bottom of the series of
tubes which are connected thereto if desirable. The intermediate headers are superposed
one upon another and are of peculiar shape. One form of these headers has horizon-
tally extending tops and bottoms, and portions of their sides correspondingly inclined
while other portions of the sides below and above the inclined portions are vertical.
They have parallel backs and fronts and a partition extending intermediate of the side
portions in such direction and position as to divide each header into two approximately
triangular portions. The partitions may have in them openings through which water
may pass. In another form of these intermediate headers they are approximately
triangular. The headers at the sides preferably correspond in shape with the
intermediate headers at that portion of them which is adjacent to the intermediate
headers.
In the back of each header are a number of holes for the reception of tubes. In the
first form of the intermediate headers to which I have referred three tubes will be
connected to each compartment; the tubes being located in the position of apices

page_text: of the triangles to which the compartment substantially conforms in contour. The
triangularly shaped headers are also provided with three similar holes in their backs.
The tubes are expanded into place. The first form of the intermediate headers is
provided with two hand holes provided with covers. The covers are secured in place
by bolts arranged opposite the tubes. The triangular form of header is of course
provided with but one hand hole and cover, but is secured in place by bolts in the
same manner.
In the first form of intermediate header the bolts for the hand hole covers are
combined with a plate composed of three sections which fit against the rear side of
that portion of the header which is adjacent to the hand hole with which they are
combined. One of the plate sections is provided with lugs which lap over the
adjacent ends of the other two sections. Another of the sections has a lug which
laps over the adjacent end of the third section. The plate has a central hole.
The bolts may be fitted into pockets arranged rearward of slots oxtending inwardly
from the central opening, or, the bolts may be passed through holes from the rear
of the plate sections and then the rear sides of the sections will be provided with
recesses which will ongago the heads of the bolts. In this case wires may be cast
into the backs of the plates which may be bent over the bolt heads to secure
them in place. The shanks of the bolts extend through the hand holes as well as
the covers therefor.
Although I have described the plates as made in sections it is not necessary to
so make them. When the plates are each made in one piece that portion of the
front of the header which is adjacent to the hand hole is provided with several
inwardly, extending lugs and the plate has in its front surface cavities with which
the lugs engage when the plate is in place. The triangularly shaped headers may
be combined with sectional plates or otherwise, and also with the bolts as desired.
The openings in the plates referred to may be triangular in shape and the plates may
if desired be provided with slots and notches or offsetts at the corners and pockets
arranged behind the corners into which the bolt heads may be slipped.
I may if desirable employ bars which extend transversely through the ends of the
tubes, the latter extending into the interior of the header to admit of this. The bolts
will then engage the bars.
The intermediate headers are superposed in horizontal rows and the tops and
bottoms of adjacent headers communicate preferably through the intervention of
nipples.
Upon the underside of the steam and water drum and near one end is a hollow
protuberance preferably cylindrical, which communicates through a suitable opening
with the interior of the steam and water drum. This projection may be secured by
rivets to the steam and water drum. Along the top of the upper row of the front
headers extends a receiver which communicates through suitable openings with the
headers. Nipples connect the receiver with the headers and are expanded into the
oponings in the receiver and the headers. The receiver is provided opposite these
openings and in its top with hand holes and hand hole covers to afford provision
for the introduction of an expander. The receiver is made in the shape of a long
rectangular box having arc-shaped portions extending from it on one side. The
straight portions extend over the headers, the arc-shaped portions extend around a
portion of the hollow protuberance. Nipples extend radially through openings in the
hollow protuberance and the arc-shaped portions of the receiver. Those nipples will
proferably be expanded into the hollow protuberance and into the receiver. In order
that they may be secured in this way, I provide the front of the straight portion of
the receiver with hand holes and covers and the front or outer side of the arc-shaped
portion of the receiver with hand holes and covers opposite the radially extending
nipples. The other ends of these nipples are expanded into the hollow protuberance by
passing an expander through the receiver and the nipples.
The covers of the hand holes in the receiver may be secured in place by means
of bolts passing centrally through said covers and engaging with plates extending
across the hand holes within the receiver.

page_text: Instead of using the arc-shaped portion of the receiver I may use a circular
portion entirely surrounding the hollow protuberance. The circular or arc-shaped
portion may also be elevated above the straight portion of the receiver, in which
case the hand holes and covers which afford provision for expanding the radial
nipples into the receiver may be arranged upon the front or outer side of the
circular or arc-shaped portion of the receiver instead of at the front of the straight
portion.
Instead of employing a cylindric hollow protuberance I may employ an oblong
hollow protuberance elongated in a direction transversely to the axis of the steam
and water drum. The receiver may then be approximately straight and connected
with the hollow protuberance by nipples extending directly from it toward the
hollow protuberance in the direction of the axis of the steam and water drum and
other nipples extending toward the hollow protuberance at an angle.
I may also if desired, employ a receiver having a straight portion which can be
nippled to the headers and which has also a central chamber preferably of elliptical
form which intersects the straight portion and communicates with it. The straight
portion has hand holes and covers along its top opposite the nipples, which establish
communication between it and the headers. The chamber has at the front an elliptical
opening to which is fitted a cover that may be secured by a bolt. Opposite the
chamber the receiver has connected to it a number of nipples or short pipes, four
being a suitable number, two of which will be considerably larger diametrically than
the other two. These nipples at the rear end are secured to the hollow protuberance
and they will be expanded into the receiver and into the hollow protuberance. The
opening in the chamber provide for the introduction of an expander.
Along the top of the rear headers a distributing chamber will extend which com-
municates with the headers through intervening nipples expanded into the headers and
into the chamber. To the under side of the steam and water drum above this
distributing chamber and secured to the steam and water drum is a hollow
protuberance which may be circular if desired and which will communicate with the
interior of the steam and water drum. From the lower side of the hollow
protuberance extend a number of pipes which may be expanded into the hollow
protuberance. They extend to a transversely expanded central portion of the
distributing chamber and will preferably be expanded into openings therein. To
admit of this I provide the rear surface of the central expanded portion of the
distributing chamber with a hand hole and removable cover. The cover may be
secured by a bolt engaging with a bolt or bar arranged inwards of the hand hole and
extending across it. The distributing chamber instead of being provided with a
transversely expanded central portion may be provided with a forwardly expanded
central portion into the upper side of which the pipes are expanded.
If desirable I may employ a distributing chamber consisting of a straight portion
nippled to the headers as before described and having two nozzles extending upwardly
from its upper side. The hollow protuberance at the rear of the steam and water
drum which I have employed in this case, has two or more tubular legs correspond-
ing to the nozzles of the distributing chamber, pipes extend between the tabular legs
of the hollow protuberance and the nozzles of the distributing chamber.
In order to avoid burning at the joints of the various parts I fit around the joints
casings composed of two semi-circular sections secured together by bolts or lynch pins.
They are so made as to snugly surround the tubular legs, the nozzles and the
connecting pipes and other parts and contain asbestos or other suitable packing.
Detail this 15th day of Awn 1007
HASELTINE, LAKE & Co.,
45, Southanipton Buildings, London,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Steam Generators.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex 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 :-
My improvement relates more particularly to steam generators in which a number
of tubes are arranged on an incline and subjected to the heat from a furnace. These
tubes are connected at their ends by means of headers, and certain of the headers are
united and connect with a steam and water drum so that water when sufficiently
heated and steam may ascend through such inclined tubes and rise through the
headers to which the uppermost ends of the tubes are connected into the steam and
water drum and the cooler water will return through the headers to which the lower
ends of the inclined tubes are connected into such tubes.
The headers which are at the sides may be continuous from top to bottom of the
series of tubes which are connected thereto if desirable. The intermediate headers
are superposed one upon another and are of peculiar shape. One form of these
headers has horizontally extending tops and bottoms, and portions of their sides
correspondingly inclined while other portions of the sides below and above the
inclined portions are vertical. They have parallel backs and fronts and a partition
extending intermediate of the side portions in such direction and position as to divide
each header, into two approximately triangular portions. The partitions may have
in them openings through which water may pass. In another form of these inter-
mediate headers they are approximately triangular. The headers at the sides preferably
correspond in shape with the intermediate headers at that portion of them which is
adjacent to the intermediate headers.
In the back of each header are a number of holes for the reception of tubes. In
the first form of the intermediate headers to which I have referred three tubes will
be connected to each compartment; the tubes being located in the position of apices
of the triangles to which the compartment substantially conforms in contour. The
triangularly shaped headers are also provided with three similar holes in their backs.
The tubes are expanded into place. The first form of the intermediate headers is
provided with two hand holes provided with covers. The covers are secured in place
by bolts arranged opposite the tubes. The triangular form of header is of course
provided with but one hand hole and cover, but is secured in place by bolts in the
same manner.
In the first form of intermediate header the bolts for the hand hole covers are
combined with a plate composed of three sections which fit against the rear side of
that portion of the header which is adjacent to the hand hole with which they are
combined. One of the plate sections is provided with lugs which lap over the
adjacent ends of the other two sections. Another of the sections has a lug which

page_text: laps over the adjacent end of the third section. The plate has a central hole. The
bolts may be fitted into pockets arranged rearward of slots extending inwardly from
the central opening, or, the bolts may be passed through holes from the rear of the
plate sections and then the rear sides of the sections will be provided with recesses
which will engage the heads of the bolts.
In this case wires may be cast into the backs of the plates which may be hent
over the bolt heads to secure them in place. The shanks of the bolts extend through
the hand holes as well as the covers therefor.
Although I have described the plates as made in sections it is not necessary to so
make them. When the plates are each made in one piece that portion of the front
of the header which is adjacent to the hand hole is provided with several inwardly
extending lugs and the plate has in its front surface cavities with which the lugs
engage when the plate is in place. The triangularly shaped headers may be
combined with sectional plates or otherwise, and also with the bolts as desired.
The openings in the plates referred to may be triangular in shape and the plates
may if desired be provided with slots and notches or offsets at the corners and pockets
arranged behind the corners into which the bolt heads may be slipped.
I may if desirable employ bars which extend transversely through the ends of the
tubes, the latter extending into the interior of the header to admit of this. The bolts
will then engage the bars.
The intermediate headers are superposed in horizontal rows and the tops and
bottoms of adjacent headers communicate preferably through the intervention of
nipples.
Upon the under side of the steam and water drum and near one end is a hollow
protuberance preferably cylindrical, which communicates through a suitable opening
with the interior of the steam and water drum. This projection may be secured by
rivets to the steam and water drum. Along the top of the upper row of the front
headers extends a receiver which communicates through suitable openings with the
headers. Nipples connect the receiver with the headers and are expanded into the
openings in the receiver and the headers. The receiver is provided opposite these
openings and in its top with hand holes and hand hole covers to afford provision for
the introduction of an expander. The receiver is made in the shape of a long
rectangular box having arc-shaped portions extending from it on one side. The
straight portions extend over the headers, the arc-shaped portions extend around a
portion of the hollow protuberance. Nipples extend radially through openings.in
the hollow protuberance and the arc-shaped portions of the receiver. These nipples
will preferably be expanded into the hollow protuberance and into the receiver. In
order that they may be secured in this way, I provide the front of the straight
portion of the receiver with hand holes and covers and the front or outer side of the
arc-shaped portion of the receiver with hand holes and covers opposite the radially
extending nipples. The other ends of these nipples are expanded into the hollow
protuberance by passing an expander through the receiver and the nipples.
The covers of the hand holes in the receiver may be secured in place by means
of bolts passing centrally through said covers and engaging with plates extending
across the hand holes within the receiver.
Instead of using the arc-shaped portion of the receiver I may use a circular
portion entirely surrounding the hollow protuberance. The circular or arc-shaped
portion may also be elevated above the straight portion of the receiver, in which case
the hand holes and covers which afford provision for expanding the radial nipples
into the receiver may be arranged upon the front' or outer side of the circular or
arc-shaped portion of the receiver instead of at the front of the straight portion.
Instead of employing a cylindric hollow protuberance I may employ an oblong
hollow protuberance elongated in a direction transversely to the axis of the steam and
water drum. The receiver may then be approximately straight and connected with
the hollow protuberance by nipples extending directly from it toward the hollow
protuberance in the direction of the axis of the steam and water drum and other
nipples extending toward the hollow protuberance at an angle.

page_text: I may also if desired, employ a receiver having a straight portion which can be
nippled to the headers and which has also a central chamber preferably of elliptical
form which intersects the straight portion and communicates with it. The straight
portion has hand holes and covers along its top opposite the nipples, which establish
communication between it and the headers. The chamber has at the front an
elliptical opening to which is fitted a cover that may be secured by a bolt. Opposito
the chamber the receiver has connected to it a number of nipples or short pipes, four
being a suitable number, two of which will be considerably larger diametrically than
the other two. These nipples at the rear end are secured to the hollow protuberance
and they will be expanded into the receiver and into the hollow protuberance. The
opening in the chamber provides for the introduction of an expander.
Along the top of the rear headers a distributing chamber will extend which com-
municates with the headers through intervening nipples expanded into the headers
and into the chamber. To the under side of the steam and water drum above this
distributing chamber and secured to the steam and water drum is a hollow pro-
tuberance which may be circular if desired and which will communicate with the
interior of the steam and water drum. From the lower side of the hollow protuberance
extend a number of pipes which may be expanded into the hollow protuberance.
They extend to a transversely expanded central portion of the distributing_chamber
and will preferably be expanded into openings therein. To admit of this I provide
the rear surface of the central expanded portion of the distributing chamber with a
hand hole and removable cover. The cover may be secured by a bolt engaging with
a bolt or bar arranged inwards of the hand hole and extending across it. The dis-
tributing chamber instead of being provided with a transversely expanded central
portion may be provided with a forwardly expanded central portion into the upper
side of which the pipes are expanded.
If desirable I may employ a distributing chamber consisting of a straight portion
nippled to the headers as before described and having two nozzles extending upwardly
from its upper side. The hollow protuberanco at the rear of the steam and water
drum which I have employed in this case, has two or tubular legs corresponding to
the nozzles of the distributing chamber. Pipes extend between the tubular legs of
the hollow protuberance and the nozzles of the distributing chamber.
In order to avoid burning at the joints of the various parts I fit around the joints
casings composed of two semi-circular sections secured together by bolts or linchpins.
They are so made as to snugly surround the tubular legs, the nozzles and the con-
necting pipes and other parts and contain asbestus or other suitable packing.
In the accompanying drawings, Figure 1 is a longitudinal elevation, partly in
section, of a steam generator embodying my improvement. Fig. 2 is a front elevation,
partly in section, of said steam generator, the section being taken at the plane of the
line, Fig. 1. Fig. 3 is a rear elevation of the said steam generator, part of the
brick work at the rear end of the generator being removed. Fig. 4 is a horizontal
section taken mainly at the plane of the dotted line y y, Fig. 1. Fig. 5 is a similar
view, illustrating a modification. Fig. 6 is a sectional elevation of the parts illustrated
in Fig. 5. Fig. 7 is a plan illustrating a modification of features shown in Fig. 4.
Fig. 8 is a front elevation of a modification of such parts. Fig. 9 is a side elevation
of the parts shown in Fig. 8. Fig. 10 is a horizontal section taken at the plane of
the line z z, Fig. 3, and showing certain parts. Fig. 11 is a view corresponding to
Fig. 10, but illustrating a modification of the parts shown in Fig. 10. Fig. 12 is a
rear elevation of certain parts forming a modification of the parts shown in Fig. 10.
Fig. 13 is a side elevation of the parts shown in Fig. 12. Fig. 14 is a sectional
elevation illustrating a joint between pipe-sections. Fig. 15 is a horizontal section
illustrating the parts shown in Fig. 14. Fig. 16 is a front view of headers embodying
certain features of my improvement. The upper header has the band hole covers
removed. The lower header has one of such covers in place and is partially shown in
section. Fig. 17 is a vertical section through one of these headers, the section being
taken lengthwise of the steam-generator. Fig. 18 is a section of a certain plate used
in the header. Fig. 19 is a front elevation of a header embodying certain modifications,

page_text: its hand-hole cover being removed. Fig. 20 is a vertical section of the header shown
in Fig. 19, this section being taken lengthwise of the steam generator. Fig. 21 is a
front view of a header embodying certain modifications, its hand hole cover being
removed. Fig. 22 is a vertical section of the header which is illustrated in Fig. 21,
this section being taken lengthwise of the steam-generator. Figs. 1, 2, and 3 show the
various parts of the steam generator of a corresponding size; but the other figures
illustrate various parts of different sizes and more or less enlarged as compared with
Figs. 1, 2 and 3.
Similar letters of reference designate corresponding parts in all the figures.
A designates a number of tubes, which are arranged upon an incline and subjected
to the influence of the heat from the products of combustion emanating from a furnace.
These tubes are connected at their ends to headers B B1 B2 B3; but the headers B1 B2 B³
and their connecting tubes may obviously be omitted, if desired.
The headers B are united one above another and connected with the steam and
water drum C, so that water, when sufficiently heated, and steam may ascend through
the inclined tubes, which are connected to said headers, and rise through the headers B,
to which the uppermost onds of these inclined tubes are connected, into the drum C,
and so that the cooler water will descend from the drum Cinto and through the
headers to which the lower ends of the inclined tubes are connected, and pass from
these headers into the inclined tubes.
The headers B¹ are shown as continuous from top to bottom of the series of tubes A, -
which are connected thereto. The water circulates through these headers B¹ just as
it circulates through the superposed series of the headers B.
The headers B are of greater extent vertically than the headers B. The headers B³
correspond in vertical extension with the headers B, and are connected together and
to the headers B2 in the same manner that the superposed headers B are connected
together. The water circulates through the headers B B³ in the same manner as it
circulates through superposed headers B.
The tubes A may be of any desirable kind.
The headers B are of a peculiar shape. Their shape and construction may be best
understood by reference to Figs. 16, 17 and 18. It will be seen that they have
horizontally extending tops and bottoms 12; that they have correspondingly
inclined side portions, 3; that they have vertical side portions, 66, below the
inclined sido portions, 63 64, and that they have vertical side portions, 67 68, above
the inclined side portions, 63 64. They have parallel fronts and backs and a partition
extending intermediately of the side portions which I have described and in such
direction and position as to divide each header into two approximately triangular
portions. The partition of each header is composed of an inclined portion, 6P, which
is inclined at about the same angle as the inclined portions 63 64 of the sides of the
headers, although in a different direction, and a vertical portion 10 above such inclined
portion and a vertical portion 61 below said inclined portion 69. The partition of
each of these headers may have in it an opening, 61, which may be best seen in Fig. 17.
When the partition is so constructed, its principal purpose will be to brace and
strengthen the header, and it will not obstruct the flow of water from one compartment
of a header to another.
In the back of each header are a number of holes for the reception of tubes A.
Three of these tubes will be connected to each compartment, the tubes being located
in the positions of apices of the triangles to which the compartment substantially
conforms in contour. The tubes are expanded into place. The expanding tool em-
ployed for this purpose may be introduced into the header through either of two hand-
holes, 13, with which the front of each header is provided. These hand-holes are reversed
triangular openings in the front of the header. By this I mean that one of the openings
has one of its sides parallel with the bottom of the header and the other two sides
converging upwardly toward the top, while the other opening has one of its sides
parallel with the top of the header and its other two sides converging down-
wardly toward the bottom of the header. The hand-holes have combined with them
covers 614

page_text: Each hand-hole cover is secured in place by a plurality of bolts, 61. These bolts
are so located as to secure the covers near their corners and opposite the tubes A.
Therefore the bolts for each hand-hole are arranged in the position of the apices of a
triangle.
As shown in the principal example of my improvements, (represented by Figs. 16
and 17,) the bolts 6 for each hand hole cover are combined with a plate, 61. This
plate 616 is composed of three sections, 1, 2 and 3. They fit against the rear side of
that portion of the front of a header which is adjacent to the hand hole with which
they are combined. In the main these sections are put together to form a plate, 618,
corresponding in contour with the interior of a compartment of the header. The
section 1 of each plate 10 is provided with lugs 4, which lap over the adjacent ends
of the sections 2 and 3. The section 2 has a lug, 5, which laps over the adjacent
end of the section 3. The plate has a hole extending through it centrally. The
advantage of making the plate in sections is to facilitate its being placed in the
compartment where it belongs after the tubes A have been expanded into the back
part of such compartment. This facility is afforded because each section may be
introduced separately through the hand hole of the compartment, and the several
sections, after being separately introduced, may be fitted into place. The bolts may
be fitted into pockets 6, (see particularly Fig. 18), arranged rearward of slots
extending inwardly from the central opening. Each bolt 61 may be slipped sidewise
into place when the sections of the plates 618 are thus constructed. If preferable, the
bolts may be passed through holes from the rear of the sections of the plates, and
then the rear side of the sections will be provided with recesses, which will engage the
heads of the bolts, so as to prevent them from turning. The shanks of the bolts
extend through the hand-holes, as also through the hand hole covers. Nuts, 61,
applied to the ends of the bolts outside the hand hole covers and secured upon the
plates, will serve to retain the hand hole covers in place.
It is particularly advantageous to secure the hand hole covers at a number of points
rather than at a single central point, because the strain is then distributed not only
throughout the covers, but throughout the headers. Moreover, it is advantageous to
secure the bolts to plates which are made separate from the headers themselves.
It is not necessary to make the plates in sections. I have illustrated this in
Figs. 19, 20, 21, 22. In these figures headers of somewhat different shape are shown.
They are severally made of approximately triangular form, so as to be adapted to have
three tubes A secured to them.
In the example of my improvement shown in Figs. 19 and 20 that portion of the
front of each header which is adjacent to the hand-holes is provided with several
inwardly extending lugs 618. In this example of my improvement three of such lugs
are shown, one on each side of the triangular hand-hole opening. The plate 61, which
is in this example of my improvement, as before stated, made in one integral piece,
has in its front surface three cavities, with which the three lugs 618 engage when the
plate is in place. The plate may be inserted through the hand hole by presenting it
edgewise, and when it engages with the lugs 618 it serves to brace and stay the header
around the hand-hole, so that the header will be less liable to fracture at this point.
The bolts may be engaged with the plate 616 in this example of my improvement
in the same manner as in the first-described example of the improvement. I have
shown the bolts as passed through holes in the plates 61 and the heads of the bolts
fitted into recesses at the back of the plate, whereby said bolts will be prevented from
turning. Wires 6" are shown as cast into the back portion of the plate adjacent to
the recesses just mentioned. These wires may be bent over the back of the
bolt-heads, to prevent the bolts from slipping backward while the hand-hole cover is
being secured.
In Figs. 21 and 22 I have shown a plate, 6, which engages with the header in the
same manner as the plate 616 illustrated in Figs. 19 and 20. The opening at the centre
of the plate 6 is in this example of my improvement of approximately triangular
form, with slots and notches or offsets at the corner and pockets 6 arranged behind the
corners. The bolts may be slipped into place sidewise, so that their heads with the

page_text: pockets. When thus inserted, they will be held against longitudinal movement, and
also prevented from turning.
The headers B, which I have particularly described in reference to Figs. 16 to 22,
inclusive, are superposed in horizontal rows, as may be seen by reference to
Figs. 2 and 3. These leaders have openings in their tops and bottoms, excepting
only the bottom row of the headers, which, like the bottom openings and the adjacent
surfaces of the rows of headers, are to communicate by the intervention of nipples
which are expanded into their openings. The removable hand hole covers afford
provision for the introduction of an expander. An inspection of these figures will
show that the lower ends of the meeting lines between the headers of one row
are located at one side of the meeting lines between the headers of the next adjacent
row.
It will be seen by reference to Figs. 2 and 3 that the sides of the superposed
headers B are irregular, or, in other words, uneven. I therefore use either headers B',
B or B at the sides of the headers B. The headers B' extend vertically throughout
the several rows of headers B. The sides of these headers B', which are adjacent to
the headers B, are made to conform to said headers B; but their outermost sides are
straight, and hence are adapted to fit snugly against the side walls of the steam
generator.
The headers B2 are like the headers B¹, except that they do not extend across so
many rows of the headers B. As shown, they extend across but two rows of the
headers B. The headers B³ are like the headers B1 and B2, except that they extend
vertically only as far as the headers B extend in the same direction.
I will now describe the manner in which the front set of headers B B¹ B' B' are
connected with the drum C. First I will refer to means employed for this purpose
which I have illustrated in Figs. 1, 2 and 4.
D designates a cylindric hollow protuberance, made of iron, preferably of cast-iron,
and provided at the upper end with a flange curved horizontally to fit the under
portion of the drum C. This hollow protuberance may be secured to the drum C by
rivets passing through its flange and through the drum. The drum will have an
opening corresponding to the interior of the hollow protuberance, so as to be in free
communication with the hollow protuberance.
E designates a receiver which extends along the upper row of the front of the
headers B and across the upper ends of the headers B¹ B. This receiver is provided,
opposite the drums of the adjacent headers B and opposite the upper ends of the
headers B B, with openings, through which it communicates with corresponding
openings in these headers. Nipples extend between the receiver and these headers,
and are expanded into the openings in said headers and the corresponding openings in
the bottom of the receiver. The receiver is provided opposite these openings and in
its top with hand holes and hand hole covers d', which afford provision for the
introduction of an expander.
The receiver E is made in the shape of a long rectangular box having arc-shaped
portions extending from it on one side. The straight portion extends over the headers.
The arc-shaped portions extend around a portion of the hollow protuberance D.
Nipples d extend radially through openings in the steam-compartment and the
arc-shaped portions of the receiver. These nipples will preferably be expanded into
the hollow protuberance and into the receiver. In order that they may be secured in
this manner, I provide the front of the straight portions of the receiver with hand
holes and covers d², and the front or outer side of the arc-shaped portions of the
receiver with hand holes and covers, d³ opposite the nipples d. These hand-holes and
covers afford provision for the admission of an expander into the receiver. The other
ends of the nipples may be expanded into the hollow protuberance by passing an
expander through the receiver and the nipples.
The covers d d of the hand holes in the receiver E may be secured in place by
means of bolts passing centrally through said covers and engaging with plates
extending across the hand holes within the receiver, as may be easily understood by
reference to Fig. 4.

page_text: I have illustrated by Fig. 5 that I may substitute for the arc-shaped portions of the
receiver E a circular portion entirely surrounding the hollow protuberance D. Part
of this circular portion I have represented in dotted lines. I have also illustrated in
Figs. 5 and 6 that the circular portion or any are thereof may be elevated above the
straight portion of the receiver. When thus elevated above the straight portion of
the receiver, the hand hole and covers d², which afford provision for expanding the
nipples d into the receiver, may be arranged upon the front or outer side of the
circular or arc-shaped portion of the receiver instead of at the front of the straight
portion.
In Fig. 7 I have shown that instead of employing a cylindric hollow protuberance, D,
I may employ an oblong hollow protuberance elongated in a direction tranverse to the
axis of the drum, C, and having its upper surface curved to conform to said drum and
flangod, so that it may be secured to the drum by rivets. The receiver E may then.
be approximately straight and connected with the hollow protuberanco by some nipples
extending directly from it toward the steam-compartment in the direction of the length
of the axis of the drum and other nipples extending toward tho hollow protuberance
at an angle. This receiver will be provided with hand holes and covers for the same
purposes as those of the receiver first described.
'
In Figs. 8 and 9 I have shown a receiver having a straight portion, which can be
nippled to the headers B B1 B2, as before described, which has also a central
chamber, d, (shown as of elliptical form,) which intersects the straight portion and
communicates with it. The straight portion has the hand-holes and covers d¹ along
its top opposite the nipples, which establish communication between it and the
headers B B B². This chamber d has also at the front an elliptical opening, to
which is fitted a cover that may be secured by a bolt centrally arranged or by any
other suitable means. Opposite the chamber the receiver has connected to it a
number of nipples or short pipes, d. As shown, there are four of these, two of them
being considerably larger diametrically than the other two. These nipples at the
rear end are secured to the hollow protuberance D of the drum C. Preferably these
nipples will be expanded into the receiver and into the hollow protuberance. The a
opening of the chamber d* and its removable cover provide for the introduction of an
expander, whereby the nipples may be expanded into the receiver. The nipples may
be expanded into the hollow protuberance, as before described.
I will now proceed to describe in detail the manner in which the rear set of
headers B B B B are made to communicate with the drum C. Along the top of
the upper row of these rear headers B and across the upper ends of the adjacent
headers B¹ B a distributing chamber, F, extends. (See particularly Figs. 3 and 10.)
This chamber F has in its bottom openings which communicate with corresponding
openings in the adjacent surfaces of the headers B B B through intervening nipples,
which are expanded into the headers and into the chamber, the chamber being
provided in the top with hand holes and covers f to admit of this. The nipples might,
however, be expanded into the openings by an expander introduced from below
through the headers. To the underside of the drum C, above the distributing
chamber, F, is secured a hollow protuberance, G. This nozzle may be circular or of
any other desirable form, and its interior will communicate with a correspondingly-
shaped opening in the drum C. This hollow protuberance is flanged at the upper
end, so that it may be secured by rivets to the drum. From its lower side extend a
number of pipes, H. As shown, there are four of these pipes. They may be
expanded into the hollow protuberance G. They extend to a transversely-expanded
central portion of the distributing-chamber F, and preferably will be expanded into
openings therein. To admit of this manner of securing the pipes H to the
distributing-chamber, I provide the rear surface of the central expanded portion of
the distributing-chamber with a hand-hole and removable cover, in order that an
expanding-tool may be introduced. This cover may be secured by a bolt engaging
with a plate or bar arranged inward of the hand-hole and extending across it.
have illustrated a modification of this distributing-chamber in Fig. 11. In this
example of my improvement the distributing-chamber has a forwardly-expanded

page_text: central portion, into the upper side of which the pipes H are expanded. Otherwise
this distributing chamber may be like the one first described.
In Figs. 12 and 13 I have shown still another means of connecting the rear
headers B B B2 B3 with the adjacent end of the drum C. Here I employ a
distributing chamber, F, consisting of a straight portion, which may be nippled to
the headers, as before, and two nozzles, f¹, extending upwardly from its upper side.
The hollow protuberance G which I employ in this example of my improvement has,
as shown, two tubular legs corresponding to the nozzles of the distributing chamber;
but I may use any desired number of such legs. Pipes H extend between the
tubular legs of the hollow protuberance G and the nozzles f₁ of the distributing-
chamber. All these parts may be of cast-iron. The tubular legs, the nozzle f¹, and
the pipes H will preferably be provided with flanges at their meeting ends, so that
they may be united by means of bolts. In order that damage from burning these
joints may be avoided, I fit around these joints casings which I have illustrated in
Figs. 14 and 15. These casings are composed of two semicircular sections secured
by bolts or linchpins. They are so made as to snugly surround the tubular legs, the
nozzles, and the pipes H, as well as the flanges of these parts, and contain asbestus
or other suitable packing, whereby the joints between the parts will be protected from
fire. Obviously, such a protection as I have described may be applied generally to
joints between tubular parts of a steam generator or like article.
It will be observed that the diameters of the tubular legs of the hollow
protuberance G, the nozzle f', and the pipes H appear to be different in Figs. 12
and 13. This is owing to the fact that those parts are not circular but are oval in the
cross section.
I have shown the drum C in Fig. 1 as suspended by girders extending transversely
across it in a well known manner. It may, however, be supported in any other
desirable manner.
I have not decined it necessary to describe the details of the other parts of this
steam-generator, because they may be of any ordinary construction.
Having now particularly described and ascertained the nature of my said inven-
tion and the manner in which the same is to be performed, as communicated to me by
my foreign correspondent I declare that what I claim is:
1. A header for a steam generator, having parallel top and bottom and parallel side
portions and provided with two reversed triangular hand-holes fitted with covers,
substantially as specified.
2. A header for a steam generator, having parallel top and bottom and parallel
side portions, a partition dividing the header into two approximately triangular
compartments, and two approximately triangular hand-holes fitted with covers,
substantially as specified.
3. A header for a steam-generator, having parallel top and bottom, parallel inclined
side portions, and a partition extending at a reverse angle to the parallel inclined side
portions and dividing the header into two approximately triangular compartments,
substantially as specified.
4. The combination, with a header having a hand-hole in the front and a cover
fitted thereto, of a removable plate made in sections fitted together and against the
inner side of the front of the header adjacent to the hand-hole, and bolts engaging
with said plate and securing the hand-hole cover, substantially as specified.
5. The combination, with a header for a steam-generator, having a hand hole in the
front, of a plate, 61, composed of sections 12 3, provided with lugs 4 and 5, and bolts
engaging with the plate and securing the hand hole cover, substantially as specified.
6. The combination, with a header for a steam-generator, provided with a hand hole,
of a plate arranged inward of the hand hole and interlocking with the edge portion of
the hand hole, so as to brace and stay the header against strain tending to expand the
header, substantially as specified.
7. The combination, with a header for a steam-generator, provided with a hand-hole,

page_text: of a plate arranged inward of the hand-hole and interlocking with the edge portion of
the hand hole, so as to braco and stay the header against strain tending to expand the
header, and also against strain tending to contract the header, substantially as
specified.
8. The combination, with a header for a steam-generator, provided with a hand-hole,
of a plate arranged inward of the hand-hole and interlocking with the edge portion of
the hand-hole, so as to brace and stay the header against strain tending to expand the
header, and bolts engaging with the plate and securing the hand-hole cover in place,
substantially as specified.
9. The combination, with a header for a steam-generator, provided with a hand-hole
and lugs inward of but adjacent to the hand-hole, of a plate provided with recesses
for interlocking with said lugs and arranged inside the header, substantially as
specified.
10. The combination, with a header for a steam-generator, provided with a hand-hole,
of a plate arranged inward of or adjacent to the hand-hole, and having a central opening
and pocket adjacent to said opening, whereby it is adapted to receive bolts for securing
the cover of the hand-hole, substantially as specified.
11. In a steam-generator, the combination, with headers having inclined side
portions, of other headers having one side provided with inclined portions to conform
to the inclined side portions of the headers first named and having the outermost sides
straight or even, substantially as specified.
12. In a steam-generator, the combination, with headers having inclined side portions
and arranged in superposed rows, of other headers extending vertically across rows of
the headers first nained and provided with inclined side portions corresponding with
the inclined side portions of the headers first named and flat or even outer sides,
substantially as specified.
13. In a steam-generator, the combination of circulating tubes, headers connected
to the ends of the tubes, a receiver in direct communication with all these headers, a
steam and water drum, and a steam-compartment connected to the steam and water
drum and to the said receiver, substantially as specified.
14. In a steam-generator, the combination of circulating-tubes, headers connected to
the circulating-tubes, a receiver in direct communication with all these headers, a steam
and water drum, a hollow protuberance connected to the steam and water drum, and
nipples connected to the hollow protuberance and to the receiver, substantially as specified.
15. In a steam-generator, the combination of circulating-tubes, headers connected to
these tubes, a receiver in direct communication with all these headers, a steam and
water drum, a hollow protuberance connected to the steam and water drum, and
nipples expanded into the hollow protuberance and into the receiver, the latter being
provided with hand-holes and covers to admit of this, substantially as specified.
16. In a steam generator, the combination of inclined circulating-tubes, a steam and
water drum arranged above said tubes, headers connecting the said tubes at the ends,
a distributing-chamber extending across the rear set of such headers and communicating
with all these headers, a hollow protuberance connected to the under side of the rear
portion of the drum, and pipes extending between the said hollow protuberance and
the distributing chamber, substantially as specified.
17. In a steam-generator, the combination of inclined circulating tubes, a steam and
water drum arranged above said tubos, headers connecting the said tubes at the ends,
a distributing-chamber extending across the rear set of such headers and communicating
with all these headers, a hollow protuberance connected to the under side of the rear
of the drum, and pipes extending between the hollow protuberance and the distributing
chamber and expanded into the same, the distributing chamber being provided with
hand holes and covers to admit of this, substantially as specified.
18. In a steam-generator, the combination of circulating tubes, headers arranged at
the ends of the circulating-tubes, a receiver extending across the headers which are
located at the front ends of the circulating-tubes and directly communicating with all
...ese headers, a steam and water drum, a hollow protuberance extending from the
sum and water drum, nipples connecting the receiver with the adjacent headers.

page_text: and other nipples connecting said receiver with said hollow protuberance, substantially
as specified.
19. In a steam-generator, the combination of circulating-tubes, headers connected to
the ends of the circulating-tubes, a distributing-chamber extending across the headers
which are located at the rear ends of the circulating-tubes and communicating with
all these headers, a steam and water drum, a hollow protuberance extending from the
steam and water drum, nipples connecting the distributing chamber to the adjacent
headers, and pipes extending between the distributing-chamber and the said steam-
compartment, substantially as specified.
20. The combination, with pipes or tubes joined together, of a casing surrounding
the joint and containing asbestus or like material, substantially as specified.
21. The combination, with pipes or tubes joined together, of a casing made in two
semi-cylindric parts surrounding the joint and containing asbestus or like material,
substantially as specified.