IMPROVEMENTS IN THE CONSTRUCTION OF STEAM BOILERS
Year: 1872

page_text: LETTERS PATENT to Albert Sauvée, of 22, Parliament St., S.W.,
Westminster, in the County of Middlesex, for the Invention of
"IMPROVEMENTS IN THE CONSTRUCTION OF STEAM BOILERS."-A com.
munication from abroad by Monsieur Emile Duclos, Ingenieur,
PROVISIONAL SPECIFICATION left by the said Albert Sauvée at the
Office of the Commissioners of Patents, with his Petition, on the
9th October 1872.
I, ALBERT SAUVÉE, of 22, Parliament St., S.W., Westminster, in the
County of Middlesex, do hereby declare the nature of the said Invention
for" IMPROVEMENTS IN THE CONSTRUCTION OF STEAM BOILERS," to be as follows :—
This Invention has for its object to furnish a simple, convenient, and
effective tubular boiler in which the water circulates inside the tubes,
which shall be so constructed as to allow an easy keeping in order and
repair, and as to have no cast iron parts in contact with the flames. It
also consists in the construction and combination of various parts of the
boiler, as herein-after more fully described and illustrated in the Draw-

page_text: group A, A, or thereabout. The steam is always full of impurities
(such as water carried away and fat, specially when you use a surface
condenser), and it goes through pipe I to the reservoir H, where it meets
the water and returns purified to the group A,, through the pipe I¹. In
this group it is superheated before it reaches the steam valve in box B,.
Each box is composed of a tube plate C in wrought iron or steel, of a
frame D, and a door E. These two parts not being in contact with the
fire may be in cast iron. The reservoir H tends to keep the water level
nearly always the same, and it is also used to clean the steam. When
the feed water is nearly pure, and is supplied very regularly, this
reservoir might be done away with, or considerably reduced in size.
The dimensions of the tubes and tube plates, as well as the number of
groups, and number of tubes in each group, may vary according to each
casc. To clean the tubes of two groups you have only to loosen the
nuts of the bolts, & you can remove them and the door easily. To
change a tube you take off the doors at each end, and replace it as in the
ordinary tubular boilers, and if you have not time you can plug it up at
each end, and the water circulates as well through the other tubes. This
system of boiler can be applied in the construction of fixed, portable,
locomotive, or marine boilers.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Albert Sauvée in the Great Seal Patent Office on
the 7th April 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALBERT
SAUVÉE, of 22, Parliament St., S.W., Westminster, in the County of
Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of October, in the year
of our Lord One thousand eight hundred and seventy-two, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Albert Sauvée, Her special licence
that I, the said Albert Sauvée, my executors, administrators, and assigns,
or such others as I, the said Albert Sauvée, my executors, administrators,
and assigns, should at any time agree with, and no others, from time to
time and at all times thereafter during the term therein expressed,

page_text: should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "IMPROVEMENTS IN THE CONSTRUCTION OF STEAM
BOILERS," a communication to me from abroad by Monsieur Emile Duclos,
Ingenieur, Boulevart de la Major, Marseille, France, upon the condition
(amongst others) that I, the said Albert Sauvée, my executors or admi-
nistrators, by an instrument in writing under my, or their, or one of their
hands and seals, should particularly describe and ascertain the nature of
the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Albert Sauvée, do hereby declare -
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement, reference being had to the Sheet of Drawings
hereunto annexed, and to the letters and figures marked thereon (that
is to say):
This Invention has for its object to furnish a simple, convenient, and
effective tubular boiler in which the water circulates inside the tubes,
which shall be so constructed as to allow an easy keeping in order and
repair, and as to have no cast iron parts in contact with the flames. It
also consists in the construction and combination of various parts of the
boiler, as herein-after more fully described and illustrated in the Draw-
ings annexed, in which Fig. 1 is the front elevation of this improved
boiler; Fig. 2 is the vertical longitudinal section; Fig. 3 is the end
elevation.

page_text: level is sensibly the same in boiler and reservoir.
DESCRIPTION OF THE DRAWINGS.
A, A₁, A, A¸ water tubes; B, box receiving the feed water from
reservoir II, and distributing it in the tubes A of the first group;
B₁, B, B., B, boxes establishing communication between each group,
two by two; B, box divided in two compartments by an horizontal
partition, and it is provided with two openings I and I'; B,, last box'at
top it receives superlicated steam from the last group of tubes, and on
it are fixed the steam valves and safety valves. C, C₁, C, C, tube
plates; D, D, D., D,, frames fixed on the tube plates; a are the notches
where the bolts C are placed; a, corresponding notches in the doors E;
E, E, E, doors for inspection; C, movable bolts; F, fire-box; f, door to
the fire-box; G, ash pan; g, door to ash pan; II, water reservoir com.
municating with the water in boiler through pipe J. This reservoir
receives at its top part through pipe I the steam from the boiler with all
its impurities, and the steam returns purified through pipe I; K₁, pipe
bringing feed water to reservoir H; K, blowing-off cock; L, glass
gauge; M, steam valve; M., safety valve; N, N¹, fire-brick backing;
O, O', bars filling the interval between the tube plates; P, chimney.
The water arrives to the boiler proper through pipe J, first in the
box B, from there to box B₁, through pipes A, A, A, then to B₂, through
A₁, A₁, A₁, and so on till it is transformed into steam in the group A,, A.,
or thereabout. The steam is always full of impurities (such as water
carried away and fat, specially when you use a surface condenser), and
it goes through pipe I' to the reservoir II, where it meets the water and
returns purified to the group A, through the pipe I'.
In this group it
is superheated before it reaches the steam valve in box B. Each box is
composed of a tube plate C in wrought iron or steel, of a frame D, and a
door E. These two parts not being in contact with the fire may be in
cast iron. The reservoir H tends to keep the water level nearly always
the same, and it is also used to clean the steam. When the feed water
is nearly pure, and is supplied very regularly, this reservoir might be
done away with, or considerably reduced in size.
The dimensions of the tubes and tube plates, as well as the number of
groups, and number of tubes in each group, may vary according to each
To clean the tubes of two groups you have only to loosen the nuts
case.

page_text: of the bolts, & you can remove them and the door casily. To change
a tube you take off the doors at each end, and replace it as in the
ordinary tubular boilers, and if you have not time you can plug it up at
cach end, and the water circulates as well through the other tubes.
This system of boiler may be applied in the construction of fixed, port-
able, locomotive, or marine boilers.
In witness whereof, I, the said Albert Sauvée, have hercuuto set
my hand and seal, this Twenty-fifth day of March, in the year
of our Lord One thousand eight hundred and seventy-three.
ALBERT SAUVÉE. (L.S.)
Witness,
H. I. ALLISON.