IMPROVEMENTS IN THE CONSTRUCTION OF APPARATUS EMPLOYED FOR THE EVAPORATION OF BRINE IN THE MANUFACTURE OF SALT
Year: 1879

page_text: LETTERS PATENT to Leopold Brun and Oswald Rose, both of Manchester, in
the County of Lancaster, for the Invention of "IMPROVEMENTS IN THE
CONSTRUCTION OF APPARATUS EMPLOYED FOR THE EVAPORATION OF BRINE IN
THE MANUFACTURE OF SALT."
Sealed the 28th May 1880, and dated the 12th December 1879.
PROVISIONAL SPECIFICATION left by the said Leopold Brun and Oswald
Rose at the Office of the Commissioners of Patents on the 12th December
1879. .
LEOPOLD BRUN and OSWALD ROSE, both of Manchester, in the County of
Lancaster. "IMPROVEMENTS IN THE CONSTRUCTION OF APPARATUS EMPLOYED FOR
THE EVAPORATION OF BRINE IN THE MANUFACTURE OF SALT."
This Invention relates to the construction of that class of apparatus employed
for the evaporation of brine, consisting mainly of circular pans heated by means
of steam, the objects of the said Invention being the more economic manufacture of
the apparatus combined with greater efficiency and durability.
The whole apparatus is self contained, and the use of brickwork is almost entirely
dispensed with.
The general external form of the apparatus is that of a circular boiler or tank.
Across the centre of the bottom of the boiler runs a straight pocket, in which is a
circular flue of boiler plate, which is thus surrounded of water as in an ordinary
steam boiler.
In one end of the flue is the furnace, and the other end communicates with a
brick flue passing beneath the drying floors so as to utilize the heat. In some cases
this boiler is used in connection with an open pan merely, the bottom of the pan
forming the top of the boiler; but in another modification above the flue there are
three pans, one above the other, the bottom of the first pan forming the top of the
high pressure steam boiler and the top pan being an open one.
Between the pans No. 1 and No. 2 is a steam space, connected by a pipe or other
suitable means to the upper part or steam space of the boiler, so that the steam
therefrom heats the pan No. 2. In each of the pans, Nos. 1 and 2, is a revolving
frame fitted with a series of scrapers fixed by arms to a vertical hollow shaft or
sleeve, at the upper end of which is keyed a bevil wheel driven by means of a

page_text: bevil pinion on the inner end of a horizontal shaft, the other end of which passes
out through a stuffing box in the side of the pan and receives its motion from any
convenient source; but we prefer to use a small steam engine to each set of pans
connected by suitable gearing with the scraper shafts, the steam to be supplied
from the boiler beneath pan No. 1, and the exhaust steam to be passed through a
coil of pipes fixed in the space immediately below the underneath side of the top or
open pan No. 3. We propose to make the central vertical shafts hollow or tubular
and to fix the same to the evaporating pans, the frame and sleeve for carrying the
scrapers to revolve round the said shaft and to have suitable openings, so that the
vapour passing from pans No. 1 and 2 may have free access to the under side of the
top or open pan No. 3.
We propose to make the scrapers coming in contact with the bottom pan of
hardened steel or other suitable material, the plate forming the scraper to be fitted
to a vertical rod of iron or steel, and midway of its length or other suitable place
to be fitted with a joint; this rod to be secured to the frame by means of a cotter
or nut; round this said rod is to be fitted a spiral spring, so as to give elasticity
to the scrapers to ensure its passing over any obstructions without undue amount
of friction.
We do not wish to confine ourselves to any one style of furnace for the generation
of steam in the boiler, which may if preferred be vertical, or a series of horizontal
flues all concentrating to the centre or one point.
Nor do we confine or limit ourselves to three or any other number of pans
placed one above the other, heated by steam and connected by means of pipes or
other suitable means in the manner described.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Leopold Brun and Oswald Rose in the Great Seal Patent Office on
the 11th June 1880.
LEOPOLD BRUN and OSWALD ROSE, both of Manchester, in the County of
Lancaster. "IMPROVEMENTS IN THE CONSTRUCTION OF APPARATUS EMPLOYED FOR
THE EVAPORATION OF BRINE IN THE MANUFACTURE OF SALT."
This Invention relates to the construction of that class of apparatus employed
for the evaporation of brine, consisting mainly of circular pans heated by steam,
the objects of the said Invention being the more economic manufacture of the
apparatus combined with greater efficiency and durability.
The construction of our improved apparatus will be readily understood on
reference to the annexed Sheet of Drawings and the following explanation
thereof :-
Fig. 1 is a vertical section, Fig. 2 a front elevation, and Fig. 3 a plan view of the
apparatus, and Fig. 4 is an enlarged view of one of the scrapers.
The whole apparatus is self contained, and the use of brickwork is almost entirely
dispensed with.
The general external form of the apparatus is that of a circular boiler or tank
a, a.
Across the centre of the bottom of the boiler runs a straight pocket b, b,
(see Fig. 2) in which is a circular flue c, c, of boiler plate, which is thus surrounded
by water as in an ordinary steam boiler.
In one end of the flue c, c, is the furnace d, d, and the other end communicates
with a brick flue e, e, passing beneath the drying floors so as to utilize the heat.
In some cases this boiler is used in connection with an open pan merely, the bottom
of the pan forming the top of the boiler; but in another modification above the
flues there are three pans f. f, g, g, h, h, one above the other, the bottom of the
first pan ff forming the top of the high pressure steam boiler, and the top pan
h, h, being an open one. Between the pans f, f, and g, g, is a steam space i, i, con-
nected by a pipe k, k, or other suitable means to the upper part or steam space 1, 1,
of the boiler, so that the steam therefrom heats the pan g,g. In each of the pans
ff, and g, g, is a revolving frame fitted with a series of scrapers n, n, fixed by an
arm m, m, to a vertical hollow shaft or sleeve o, o, at the upper end of which is
keyed a bevel wheel p, p, driven by means of a bevel pinion q, q, on the inner end
of a horizontal shaft r, r, the other end of which passes out through a stuffing box
8, 8, in the side of the pan, and receives its motion from any convenient source;
but we prefer to use a small steam engine to each set of pans connected by suitable
gearing with the scraper shafts, the steam to be supplied from the boiler beneath
pan ff, and the exhaust steam to be passed through a coil of pipes fixed in the
space immediately below the underneath side of the top or open pan h, h.
We propose to make the central vertical shafts hollow or tubular and to fix the
same to the evaporating pans, the frame m, m, and sleeve o, o, for carrying the
scrapers n, n, to revolve round the said shaft and to have suitable openings, so that
the vapour passing from pans f. f, and g, g, may have free access to the under side
of the top or open pan h, h.
We propose to make the scrapers n, n, (see Fig. 4) coming in contact with the
bottom pan of hardened steel or other suitable material, the plate n, n, forming the
scraper to be fitted to a vertical rod t, t, of iron or steel, and midway of its length
or other suitable place to be fitted with a joint u, u, this rod to be secured to the
frame m, m, by means of a cotter or nut v, v; round this said rod is to be fitted a
spiral spring w, w, so as to give elasticity to the scrapers n, n, to ensure their
passing over any obstructions without undue amount of friction. Open pockets
x, x, are provided for the introduction of the brine and the removal of the salt from
the pans f. f. and a. a.

page_text: Having now described the nature and object of our said Invention, together with
the manner in which the same is to be or may be performed or carried into practical
effect, we would remark in conclusion that we do not wish to confine ourselves to
any one style of furnace for the generation of steam in the boiler, which may if
preferred be vertical, or a series of horizontal flues all concentrating to the centre
or one point, nor do we confine or limit ourselves to three or any other number of
pans placed one above the other, heated by steam, and connected by means of pipes
or other suitable means in the manner described; but what we claim as our Inven-
tion is principally the construction and application of the pocket b, b, with flue c, c,
passing through it; secondly, the use of the pipe k, k, or its equivalent, for admitting
the steam from the high pressure boiler to the underneath side of the second pan
g. g; and, thirdly, we claim the particular construction of the scrapers, all as heroin-
before set forth and illustrated by the Drawings annexed.
In witness whereof, we, the said Leopold Brun and Oswald Rose, have here-
unto set our hands and seals, this Tenth day of June, in the year of our
Lord One thousand eight hundred and eighty.
LEOPOLD BRUN. (L.S.)
OSWALD ROSE.
(L.S.)