Year: 1894

page_text: Date of Application, 27th Nov., 1894
Complete Specification Left, 27th Aug.. 1895-Accepte 1, 23rd Nov., 1895
We, AUGUSTIN ABRASSART, Mechanician, in Etouges, Belgium, and PIERRE
JOSEPH LECOMTE, Mechanician, in Elouges, Belgium, do hereby declare the
nature of this invention to be as follows:-
It is vertical and composed of two cylinders (A & a) united at their basis by
a angle-iron and at their superior end by two vaulted plates (B & b). These
two vaulted plates located one above the other are themselves connected by a
cylinder (C) serving as chimney for the boiler.
This boiler contains C-tubes shaped vertically disposed and fixed by both their
extremities to the lateral sides of the interior cylinder (a). By diminishing the
diameter of these tubes their number may be increased at will.
The vertical or composed boilers in use up to date offered great drawbacks; in
those where the tubes are disposed vertically and where they are closed beneath
and fixed above to the inferior vaulted plate (b) superior part of these tubes is
nearly always without water; as to their lower part it is after a very short time
filling with calcareous matter precipitated from the water and the latter not being
alle to penetrate down to the bottom of the tubes, the consequence is that the
inferior part of this latter is consumed and the tubes rendered useless.
When the tubes are fitted horizontally and fixed to the lateral sides of the
interior cylinder (a) the quantity of steam produced is very low as compared with
the fuel required, for the tubes not containing much water, they do not offer a
large heating surface, and besides the heat escapes direct into the air without
producing the wished for effect. Moreover by the dilatation of the sides of the
cylinder (a) it happens that these tubes bend and break at their ends.
Finally when the tubes vertically disposed, are fixed at their upper and lower
ends on tubular plates, the superior part of the tubes being frequently without
water an enormous loss of fuel is produced and the tubes deteriorate in a very short
time.
In consequence of the C-tubes shape given to the tubes composing the boiler
constituting the object of this invention, the tubes cannot break any longer. They
are always full of water and are at liberty to expand in all directions, they are
possessed of a larger heating-surface and as they contain a great quantity of water
notwithstanding the small space the occupy they can produce enormous quantities
of steam whilst they consume but little fuel.
Dated 22nd of November 1894.
For AUGUSTIN ABRASSART and
PIERRE JOSEPH LECOMTE,
Carl O. Lange,
Patent Agent.

page_text: Improvements in Vertical Steam Boilers.
We, AUGUSTIN ABRASSART, Mechanician, and PIERRE JOSEPH LECOMTE,
Mechanician. both residing in Elouges, Belgium, do hereby declare, that the
following is a full, clear, and exact description of the invention, which will enable
others skilled in the art to which it appertains to use the same :-
Fig. 1 is a vertical section of the entire boiler;
Figure 2, a top view of the boiler.
It is vertical and composed of two cylinders A and a united at their basis by an
These two
angle iron and at their upper ends by two vaulted plates B and b.
vaulted plates located one above the other are themselves connected by a
cylinder serving as chimney for the boiler.
This boiler contains 36 C-shaped tubes vertically disposed and fixed by both
their extremities to the lateral sides of the interior cylinder a. By diminishing the
diameter of these tubes their number may be increased at will.
The vertical or composite boilers in use up to date offered great drawbacks; in
those where the tubes are disposed vertically and where they are closed beneath
and fixed above to the interior vaulted plate b, the upper part of these tubes is
nearly always without water; as to their lower part it is after a very short time
filled with calcareous matter precipitated from the water and the latter not being
able to penetrate down to the bottom of the tubes the consequence is that the
interior part of this latter is consumed and the tubes rendered useless.
When the tubes are fitted horizontally and fixed to the lateral sides of the
interior cylinder a the quantity of steam produced is very low as compared with
the fuel required, for the tubes not coutaining much water, they do not offer a
large heating surface, and besides the heat escapes direct into the air without
producing the wished for effect. Moreover by the dilatation of the sides of the
cylinder a it happens that these tubes bend and break at their ends.
Finally when the tubes vertically disposed, are fixed at their upper and lower
ends on tubular plates, the upper part of the tubes being frequently without
water an enormous loss of fuel is produced and the tubes deteriorate in a very
short time.
In consequence of the C-tubes shape given to the tubes composing the boiler
constituting the object of this invention the tubes cannot break any longer.
They are alway full of water and are at liberty to expand in all directions, they
are possessed of a larger heating-surface and as they contain a great quantity
of water notwithstanding the small space they occupy they can produce enormous
quantities of steam whilst they consume but little fuel.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :
A composite steam-boiler with C-shaped tubes vertically fitted and fixed at both
their extremities to the lateral sides of the interior cylinder a in order to obtain a
langer heating surface and producing greater quantities of steam, all substantially
as set forth.
נ.י.ם
Talium 221 af & voust 1805