An Improved Apparatus for the Preliminary Heating of Liquids Before Distillation.
Year: 1889

page_text: Date of Application, 18th Sept., 1889
Complete Specification Left, 12th July, 1890-Accepted, 16th Aug., 1890
TROVISIONAL SPECIFICATION.
An Improved Apparatus for the Preliminary Heating of Liquids
Before Distillation.
I GEORGE EDWARD DAVIS of 301 Great Clowes Street Manchester in the County
of Lancaster, Chemical Engineer and Consulting Chemist do hereby declare the nature.
of this invention to be as follows:-
In many forms of distilling apparatus wherein the operation is continuous, the
liquid sent into the still is heated by means of the escaping steam, or by means of
the refuse water running from the still. In all the forms of apparatus at present used
for effecting this object, there is great danger of the valuable liquid leaking away
unobserved as the joints are all hidden away within the apparatus. I have therefore
invented the present heater, herein described in order to overcome this difficulty.
My invention consists of a series of cylinders or parallelograms of metal or other
suitable material, built up with plates or diaphragms between them thus forming a
series of boxes, each without any connection whatever with the box or chamber
immediately above or below it. The liquid to be heated is passed through alternate
chambers of the heater; thus in a heater of six boxes or chambers the liquid would
be passed through chambers 5, 3 and 1 in succession, the steam, gas, vapour or heating
fluid entering at 2 and subsequently passing through chambers 4 and 6. The heating
medium is therefore kept entirely from contact with the liquid to be heated, and
moreover, the joints at all times, liable to leakage, are visible to the eye, and as the only
place at which leakage can occur is on the periphery of the cylinders or boxes, any
leakage can readily be stopped by tightening the nuts and bolts by which the
apparatus is ordinarily put together.
In order to gain as much heating surface as possible the diaphragms or plates
between each box or cylinder are deeply corrugated between the flanges, or each plate
is furnished with a series of cups or thimbles, or a series of U pipes are attached
thereto, or a series of projecting pins or plates are attached to the diaphragm plates.
Doted thi19th
1800
GEORGE E. DAVIS.
COMPLETE SPECIFICATION.
An Improved Apparatus for the Preliminary Heating of Liquids
Before Distillation.
I GEORGE EDWARD DAVIES of 301 Great Clowes Street, Manchester in the County
of Lancaster, Chemical Engineer and Consulting Chemist 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 :-
In most forms of distilling apparatus wherein the operation is continuous, the
liquid sent into the still is usually heated by means of the escaping steam, or by
means of the beated spent water running from the still.
In all the apparatus at present used for effecting the aforesaid object there is great
danger of the valuable liquid leaking away unobserved as the joints are all hidden
away within the apparatus. I have therefore devised the heater described and
illustrated herein.
My invention consists of a series of boxes. or cylinders, of metal or other suitable
material, built up or cast with plates or diaphragins between them or the diaphragms
may be cast upon the cylinders or boxes as shown in the drawing accompanying this
specification, thus forming a series of boxes or chambers, cach, without any con-
nection whatever with the box or chamber immediately above, or below it. The liquid

page_text: to be heated is passed in sequence through alternate chambers of the heater and
becomes heated by the current of steam, vapour, gas, or hot fluid, flowing through
other alternate chambers; thus in a heater, say, of six chambers as shown in the
accompanying drawing, the liquid to be heated would be passed through chambers 5,
3 and 1 in sequence, and so on according to the number of chambers in the heater,
the steam, vapour, gas, or other heating fluid, entering the chamber 2 at A passes
through the chambers 4 and 6, and so on, finding an exit at B in the lowermost
chamber. In other words, the liquid to be heated enters at C in the accompanying
drawing passes from the top of chamber 5 to the bottom of chamber 3, from the top
of chamber 3 to the bottom of chamber 1, leaving at D as a heated liquid. The
heating medium is therefore kept from contact with the liquid, to be heated, and,
moreover, the joints at all times liable to leakage, are visible to the eye as, the only
place at which leakage can occur is on the peripliery of thic cylinders or boxes, and
should any such leakage occur, it can be readily stopped by tightening the nuts and
bolts by which the apparatus is ordinarily put together.
In order to gain as much heating surface as possible, the diaphragms or plates
between each box or cylinder are deeply corrugated between the flanges as shown
at 3 in the accompanying drawing, or each plate is furnished with a series of cups
or thimbles as shown at 1, or a series of pipes are fastened to, or cast upon the
plates as shown at 5, or a series of projecting pins, ribs, or plates are cast upon, or
attached to the diapliragni plates to increase tlie heating surface.
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:-
The construction and use of the apparatus for the preliminary heating of liquids
before distillation, substantially as is herein described.
Dated this 11th day of July 1890.
GEORGE E. DAVIS.