Improvements in Locomotive Boilers.
Year: 1899

page_text: Date of Application, 2nd Sept., 1899
Complete Specification Left, 20th Jan., 1900-Accepted, 24th Feb., 1900
Improvements in Locomotive Boilers.
I, CORNELIUS VANDERBILT, Junior, of Grand Central Depot, 42nd Street, in
the City of New York, United States of America, Mechanical Engineer, do
hereby declare the nature of this invention to be as follows:-
1
The object of this invention is to so construct a locomotive boiler that its
strength will be materially increased, resistance to strain due to expansion and
contraction of the parts or other causes and rupture of the plates avoided, and
a more effective heating surface notably in the fire box obtained, so that a rapid
generation of steam will be ensured.
The locomotive is constructed with a shell having a cylindrical and horizon-
tally disposed barrel section from the outer end of which the chimney projects, an
intermediate conical section, and a fire box section, the small end of the conical
section being connected to the barrel and the large or rear end to the fire box
section which is inclined rearwardly and downwardly. The fire box section is
cylindrical in cross section and within it is arranged an inclined fire box also
cylindrical in cross section, and whose wall is corrugated in a transverse direc-
tion. The said fire box is mounted eccentrically within the fire box section,
its forward end being suspended by links from the forward top portion of the
fire box section while the lower or bottom part of the fire box rests on suitable
supports.
The open end of the fire box is rivetted or otherwise secured to the front
plate of the fire box section.
The flues extend from the fire box tube plate to the smoke box tube plate,
the latter being formed with a rim having transverse corrugations which extend
a suitable distance from the inner surface of the barrel to permit proper vield-
ing in a longitudinal direction of the smoke box tube plate upon contraction and
expansion of the flues to relieve the barrel section of undue strain the extremo
outer end of the corrugated sheet being rivetted in the usual manner to the
barrel or outer section.
By the arrangement described, the flues stand at an angle to the axis of the
barrel and the conical section; and the smoke box tube plate stands at an angle,
to the outer end of the barrel-that is, is inclined to the vertical, and by tilting
the fire box, the water space below the fire line at the back is reduced, to increase
the depth above the fire line, thus giving a more effective heating surface in
the back end portion of the fire box. By not submerging the forward end to
the same extent that the rear end is submerged, a still more effective heating
surface is obtained, thereby insuring a rapid generation of steam.
It is further evident that by the arrangement described, especially by the cylin-
drical form of fire box and barrel, the strength of the boiler is materially
increased and a rupture of the sheets is not liable to take place, as unequal strains
are avoided, and the connection and form of the several sections are such, as

page_text: to resist all strain due to expansion and contraction of the various parts and to
the pressure of the generated steam.
Dated this 2nd day of September 1899
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.
Improvements in Locomotive Boilers.
I, CORNELIUS VANDERBILT, Junior, of Grand Central Depot, 42nd Street, in
the City, County and State of New York, United States of America, Mechanical
Engineer, 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:-
The object of this invention is to so construct a locomotive boiler that its
strength will be materially increased, resistance to strain due to expansion and
contraction of the parts or other causes and rupture of the plates avoided, and
a more effective heating surface notably in the fire box obtained, so that a rapid
generation of steam will be ensured.
The invention consists of novel features and parts and combinations of the
same, as will be fully described hereinafter and then pointed out in the claims.
A practical embodiment of my invention is represented in 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 longitudinal central sectional elevation of the improvement;
Figure 2 is an enlarged end elevation of the same;
Figure 3 is an enlarged transverse section of the same, on the line 3-3 in
Figure 1;
Figure 4 is a like view of the same, on the line 4-4 in Figure 1: and
Figure 5 is a similar view of the same, on the line 5-5 in Figure 1.
The shell of the locomotive boiler is provided with a barrel or outer sec-
tion A, disposed horizontally and made cylindrical, and having a smoke box A
projecting from the outer end of the barrel. The rear end of the barrel is con-
nected with the small end of the wagon top A2, in the form of a cone, the rear
or base end being connected with a fire box section A³, inclined rearwardly and
downwardly from said wagon top A, as is plainly indicated in Figure 1.
The section 3 is made cylindrical in cross section, as is plainly indicated in
Figures 2 and 3, and in said section is arranged, eccentrically, a fire box B
likewise made cylindrical in cross section, the rim or wall of said fire box being
corrugated in a transverse direction, as is plainly indicated in Figure 1. The
forward end of the fire box B is suspended by links C from the forward, top por-
tion of the fire box section A³, the lower or bottom portion of the fire box resting
on suitable supports C, carried by the section A³, as illustrated in Figure 3.
The open end of the fire box B is riveted or otherwise secured to the front
sheet A of the fire box section A³: see Figure 1.
The flues E extend from the fire box flue sheet B¹ to the flue sheet F, formed
with a rim having transverse corrugations F1, as is plainly shown in Figure 1
the corrugations extending a suitable distance from the inner surface of the
barrel A, to permit a proper yielding in a longitudinal direction of the flue
sheet, upon expansion and contraction of the flues E, to relieve the barrel A o
undue strain, it being understood that the extreme outer end of the corrugated
sheet is riveted in the usual manner to the barrel or outer section A.
By the arrangement described, the flues Ẹ stand at an angle to the axis o

page_text: the barrel A and the wagon top ; and the flue sheet F stands at an angle to
the outer end of the barrel-that is, is inclined to the vertical, as is plainly
indicated in Figure 1, and by tilting the fire box B, the water space below the
fire line at the back is reduced, to increase the depth above the fire line, thus
giving a more effective heating surface in the back end portion of the fire box.
By not submerging the forward end to the same extent that the rear end is sub-
merged, a still more effective heating surface is obtained, thereby insuring a
rapid generation of steam.
It is further evident that by the arrangement described, especially by the cylin-
drical form of fire box and barrel, the strength of the boiler is materially
increased and a rupture of the sheets is not liable to take place, as unequal strains
are avoided, and the connection and form of the several sections are such, as
to resist all strain due to expansion and contraction of the various parts and to
the pressure of the generated steam.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what
I claim is:-
―
1. A locomotive boiler, comprising the following parts in combination, to
wit a shell having a horizontally disposed barrel section, a conical wagon top,
a fire box section inclined downwardly and rearwardly from the base of the said
conical wagon top, a fire box hung eccentrically in said fire box section, with
its axis inclined to the horizontal, an inclined flue sheet in the barrel section,
and flues extending from the front end of the fire box to the said flue sheet and
approximately at a right angle thereto, substantially as shown and described.
2. In a locomotive boiler, the arrangement of the inclined fire box and the
inclined fire box section of the shell at an angle to each other, to increase the
distance between said fire box and shell forwardly at the bottom, substantially
as shown and described.
3. In a locomotive boiler, the cylindrical fire box suspended eccentrically in
the fire box section by links at the forward end and secured at the other end to
the end sheet of the fire box section in such a manner as to incline the fire box
rearward and downward in the tilted fire box section, substantially as shown
and described.
1000
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.