IMPROVEMENTS IN THE MEANS OR APPARATUS EMPLOYED FOR EVAPORATING, SUCH IMPROVEMENTS BEING APPLICABLE FOR THE MANU- FACTURE OF SALT AND OTHER PURPOSES
Year: 1878

page_text: LETTERS PATENT to James Jowett, of Leeds, in the County of York, for
the Invention of "IMPROVEMENTS IN THE MEANS OR APPARATUS EMPLOYED
FOR EVAPORATING, SUCH IMPROVEMENTS BEING APPLICABLE FOR THE MANU-
FACTURE OF SALT AND OTHER PURPOSES."
Sealed the 25th February 1879, and dated the 28th August 1878.
:
PROVISIONAL SPECIFICATION left by the said James Jowett at the Office
of the Commissioners of Patents on the 28th August 1878.
"
JAMES JOWETT, of Leeds, in the County of York. IMPROVEMENTS IN THE
MEANS OR APPARATUS EMPLOYED FOR EVAPORATING, SUCH IMPROVEMENTS. BEING
APPLICABLE FOR THE MANUFACTURE OF SALT AND OTHER PURPOSES."
.
In my improvements I employ a series of pans, so placed that by preference only
one fire is employed to communicate its heat to a number of them, though of course
when preferred more than one fire may be employed, these of course varying in.
accordance with the size of pans. One pan is placed on each side of the fire or fires,
and another immediately over the same, whilst a fourth is applied round. the..
chimney. The steam generated from any of these pans may be utilized under other
pans for evaporating purposes, and is ultimately passed away into the chimney..
Another feature in the arrangement is the method of applying the heat, which
may be done in the ordinary way, supplemented by circulating pipes passing through.
or over the fire or fires, whereby the liquid is submitted to the heat of the fire or
fires with increased facilities for absorbing it. By these arrangements evaporation
is expedited and economy effected.
.
,י

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Jowett in the Great Seal Patent Office on the 28th February
1879.
JAMES JOWETT, of Leeds, in the County of York. "IMPROVEMENTS IN THE
MEANS OR APPARATUS EMPLOYED FOR EVAPORATING, SUCH IMPROVEMENTS BEING
APPLICABLE FOR THE MANUFACTURE OF SALT AND OTHER PURPOSES."
In my improvements I employ a series of pans, so placed that by preference only
one fire is employed to communicate its heat to a number of them, though of courso
when preferred more than one fire may be employed, these of course varying in
accordance with the size of pans. One pan is placed on each side of the fire or
fires, and another immediately over the same,, whilst a. fourth is applied round the
chimney. The steam generated from any of these pans may be utilized under other
pans for evaporating purposes, and is ultimately passed away into the chimney.
Another feature in the arrangement is the method of applying the heat, which
may be done in the ordinary way, supplemented by circulating pipes passing through
or over the fire or fires, whereby the liquid is submitted to the heat of the fire or
fires with increased facilities for absorbing it. By these arrangements evaporation
is expedited and economy effected.
And in order that my Invention may be more completely understood, reference is
given to the accompanying Sheet of Drawings, and to the letters and marks
Fig. 2, a ground plan of the same.
Fig. 3, an elevation of the doors of pan el, which are closed or drawn up to the
pan edge during evaporation, and allowed to fall back, as shewn by dotted lines at
Fig. 1, when the solid contents have to be removed.
Fig. 4, a longitudinal section through fire-place, flue, pans c and d, and chimney,
shewing pipes ? passing over fire-place from each side of pans.b and b¹..
Fig. 5, a modified arrangement of circulating pipes.
Fig. 6 shews the application of circulating pipes to an ordinary evaporating
pan:
Fig. 7, a part sectional plan of the same.
a is the fire-place, having the pans b and b¹ arranged on each side of it. The
pan c stands immediately over the fire and between the pans 6 and 6' for some
portion of its length; d is a pan, and may be either circular or rectangular, through.
and under which the flue passes to enter the chimney, which is marked f.;, this pan.
is used: as a first receptacle for the cold liquid for the purpose of warming the
same.:
e and e¹ are two pans, which are heated by the steam produced in the pans b
and b, which passes through the pipes g and g' into steam jackets h under them
(e and e¹) to the chimney f, where it is exhausted by the draught of the fire into
the chimney.
The mode of working is as follows:-The brinė or other liquor or liquid to be
evaporated is first introduced into the pan d; from this pan dit passes by the pipe d'
into pan c, thence by the pipes c' and into the pans band 61, where it is finally
evaporated.
The pans e and e' may be placed lower than the pans b and b¹, so that the
drainage of the mother liquor may flow into them and be economized.
Fig. 6 shews the application of circulating pipes to an ordinary evaporating pan,
where the cooler and consequently heavier liquid passes from the back part of the.

page_text: pan into the pipes at 1, and is carried forward in the direction shewn by arrow
over the fire to the front part of the pan, thus causing a more rapid circulation and
consequent evaporation.
The effects of the herein-before described arrangements are economy in the con-
sumption of fuel in vessels used for the evaporation of brine for the manufacture.
of salt and other kindred liquors or liquids, and for increasing the facilities for more
rapidly and effectually causing evaporation, whereby the cost of production is
reduced.
Having now described the nature of the said Invention, and described by the
aid of Drawings how the same may be carried into practice, I would have it under-
stood that I do not limit myself to the exact details or configuration of the parts I
have described and illustrated in the accompanying Drawings, but what I do claim
and desire to be secured to me by Letters Patent is,-
First. The arrangement and combination of evaporation pans with mere modifi-
cations of such arrangements, substantially as and for purposes herein set
forth.
Second. The arrangement and application of pipes p with any mere modifications
of the same, for the purpose of causing a more rapid circulation and consequent
evaporation of brine or other kindred liquors or liquids, substantially as and for
purposes herein set forth.
In witness whereof, I, the said James Jowett, have hereunto set my hand and
seal, this Twenty-sixth day of February, in the year of our Lord One
thousand eight hundred and seventy-nine.
JAMES JOWETT. (L.S.)