Year: 1894

page_text: Date of Application, 21st Sept., 1894
Complete Specification Left, 19th June, 1895-Accepted, 17th Aug., 1895
I, ADOLF SOCHER, of Colliseum Laibach, in the Empire of Austria, Engineer
of the Austrian State Railways, do hereby declare the nature of this invention to
be as follows:-
My invention relates to improvements in locomotive boilers, whereby the useful
heating effect of the furnace is augmented, the steam space increased, and the
consumption of smoke facilitated.
A boiler constructed according to my said invention has its body closed at the
rear by a conical drum which extends into the firebox lined with fire-bricks, the
bottom of the drum forming the firebox tube-plate.
By this arrangement, as compared with the customary locomotive boilers,
supposing the entire lengths of the apparatus to be equal, I obtain a certain
prolongation of the heating tubes, thereby enabling the heating gases, which owing
to preliminary beating enter the tubes at a considerably higher temperature, to
give off their heat more completely, so that the loss at the direct heating surface
presented by the firebox round which water circulates is entirely compensated for.
The free extension of the firebox tube-plate in all directions, which is rendered
possible by this arrangement, affords moreover an effectual protection against
leakages when great changes of temperature occur.
The steam collector is formed by a horizontal tube arranged above the body of
the boiler and communicating with the rear end of the same where the greatest
development of steam takes place. The steam collector has in front a short flanged
pipe for enabling the steam to be conducted to the engine cylinders, and at the rear
another short flanged pipe for connecting the fittings with the tube.
It will therefore be seen that the steam space is much larger than in ordinary
boilers; owing to this arrangement the steam will be dry and the water level in
the boiler may be situated much higher, so that the diameter of the tube plate and
consequently also the number and diameter of the heating tubes can be adapted to
any requirements.
On the sheet-metal casing of the fire-box I arrange a flap valve through which
atmospheric air passes between the outer walls and the brickwork of the firebox,
and then through suitable openings below the grate. On this way the air cools the
outer walls and is preliminarily heated, whereby the combustion becomes more
perfect, the production of smoke is reduced, and the useful heating effect of the
furnace is augmented, while a sudden cooling of the tube plate is obviated.
Dated this 21st day of September 1894
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.

page_text: 1, ADOLF SOCHER, of Colliseum Laibach, in the Empire of Austria, Engineer
of the Austrian State Railways, 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 invention relates to improvements in locomotive boilers, whereby the useful
heating effect of the furnace is augmented, the steam space increased, and the
consumption of smoke facilitated.
In the accompanying drawing
Figure 1 is a longitudinal section of a locomotive boiler constructed according to
the present invention.
Figure 2 is a transverse section the left half being a section taken on the
line A-B, and the right half on the line G-H of Figure 1.
Figure 3 is an horizontal section on the line C-D of Figure 1 and
Figure 4 is a section on the line E-F Figure 1.
A boiler constructed according to my said invention has its body a closed at the
rear by a conical drum b which extends into the fire-box d lined with fire-bricks the
end c of the drum forming the firebox tube-plate.
By this arrangement, as compared with the customary locomotive boilers,
supposing the entire lengths of the apparatus to be equal, I obtain a certain
prolongation of the heating tubes, thereby enabling the heating gases, which owing
to preliminary heating enter the tubes at a considerably higher temperature, to give
off their heat more completely, so that the loss at the direct beating surface
presented by the fire-box round which water circulates is entirely compensated for.
The free extension of the firebox tube plate in all directions, which is rendered
possible by this arrangement, affords moreover an effectual protection against
leakages when great changes of temperature occur.
The steam collector is formed by an horizontal tabe e arranged above the body a
of the boiler and communicating with the rear end of the same where the greatest
development of steam takes place. The steam collector has in front a short flanged
pipe g for enabling the steam to be conducted to the engine cylinders, and at the
rear another short flanged pipe f for connecting the fittings with the tube.
It will therefore he seen that the steam space is much larger than in ordinary
boilers; owing to this arrangement the steam will be dry and the water level in the
boiler may be situated much bigher, so that the diameter of the tube plate
and consequently also the number and diameter of the heating tubes can be adapted
to any requirements.
On the sheet metal casing of the fire-box I arrange at h a flap valve through
which atmospheric air passes between the outer walls and the brickwork of the
firebox, in the direction indicated by the arrows Figure 1, and then through suitable
openings below the grate. In this way the air cools the outer walls and is
preliminarily heated, whereby the combustion becomes more perfect, the production
of smoke is reduced, and the useful heating effect of the furnace is augmented, while
a sudden cooling of the tube plate is obviated.
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
claim is :-
First. A locomotive boiler in which at the rear end of its body a is arranged a
conical drum b extending into the firebox d lined with fire-bricks, the end c of the

page_text: Second. In the locomotive boiler described in the first claim a steam space which
is formed by a tube e arranged along the top of the boiler and connected with the
rear end of the body of the boiler at the point where the greatest development of
steam takes place, this tube having at its ends short pipes 9 and f for enabling the
steam to be conducted to the cylinder and to the fittings.
g
Third. In the locomotive boiler described in the first claim a flap valve h through
which air, in order to be preliminarily heated, can pass between the brickwork of
the firebox and the casing and thence below the grate for the purpose of rendering
the combustion more complete.
Dated this 19th day of June 1895.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.