Improvements in Apparatus for effecting Interchange of Temperature between Fluids or for Heating and Evaporating Liquids.
Year: 1897

page_text: Date of Application, 15th May, 1897
Complete Specification Left, 14th Feb., 1898-Accepted, 26th Mar., 1898
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for effecting Interchange of
Temperature between Fluids or for Heating and Evaporating Liquids.
I, SALOMON FRANK, of 2, Bleichstrasse, Frankfort-on-the-Main, in the Empire
of Germany, Mechanical Engineer, do hereby declare the nature of this invention
to be as follows:-
-
My invention consists of apparatus for effecting interchange of temperature be-
tween fluids or for heating and evaporating liquids and consists of a combination
of plates bent at their edges in such a manner as to form marginal bearing surfaces
or flanges so that when they are connected together in pairs of such plates in
reversed positions by means of screws or rivets or otherwise and the tightness of
the joint ensured if necessary by suitable packing, the pairs of plates thus con-
nected form between them a space or chamber.
By combining a number of such chambers into a series or battery and making.
the spaces enclosed between them communicate with each other there is obtained
one large closed chamber forming a channel for the passage of the fluid which is
to be heated or cooled or vaporized and also an extensive space, or series of flues,
between the pairs of plates for the heating or cooling agent to flow through; where-
by the fluid in the said closed chamber is heated, cooled or evaporated with great
rapidity.
The apertures in the plates for giving communication from
to
space space
between them may be of any suitable shape such as slots, or round or other shaped
openings, and they may, by means of a stamp or punch, be formed as pipe connec-
tions, which, in fitting together the plates, need only be inserted into each other.
Each of the plates is provided with two such pipe-connections, say one at top
and one at bottom, so proportioned that the outer diameter of the one equals the
inner diameter of the other. The plates should be stamped or punched uniformly,
so that, in setting up the apparatus, the position of one plate need only be reversed
in relation to the other plate to make up a pair. Plates so constructed may be
made to closely fit at the joints, so that no further intermediate packing need be
inserted between them, which renders the apparatus very economical in construction.
In order to protect the plates from distortion distance pieces or nipples may be
pressed up from the plates, they being so arranged as to coincide, and bear on,
each other, when the several plates are combined together, so that any deforma-
tion of the plate is effectually prevented. Owing to this arrangement the said
distance pieces or nipples are, in addition, constantly washed by the liquids flowing
past them through the closed chamber, so that the plates are not liable to be im-
moderately heated.
.
1711
1
1007
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.

page_text: Improvements in Apparatus for Effecting Interchange of Tempera-
ture between Fluids or for Heating and Evaporating Liquids.
I, SALOMON FRANK, of 2, Bleichstrasse, Frankfort-on-the-Maine, in the Empire
of Germany, Mechanical Engineer, 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: --
This invention relates to apparatus wherein plates with coincident perforations
or apertures, are united to form a whole, in such a manner that two separate
series of spaces, or compartments, are formed each of which serves for the reception
of fluid the two fluids being intended to effect a mutual interchange of heat, or
for evaporating a liquid.
I will describe with reference to the accompanying drawings apparatus con-
structed in accordance with this invention.
Figure 1 is a side view of one of the plates. Figures 2 and 3 are vertical sec-
tions of two plates to be placed together. Figure 4 is a vertical section of a number
of plates combined to form an apparatus.
The plates a are bent at their edges in such a manner as to form marginal bearing
surfaces, or flanges a². Each such plate a is firmly connected with its neighbour b,
similariy bent in the opposite direction as at 62 the connection being made by means
of screws, or rivets, or otherwise, and the tightness of the joint is ensured, if neces-
sary, by suitable packing, so that the pairs of plates, thus connected, form between
them a space, or chamber. By combining a number of such chambers into a series,
or battery, as illustrated in Figure 4 and making the spaces enclosed between
them communicate with each other there is obtained one large closed chamber
forming a channel for the passage of the fluid which is to he heated, or cooled, or
vaporized, which takes the course indicated by the arrows; and there is also an
extensive space, or series of flues between the pairs of plates for the heating, or
cooling, agent to flow through; whereby the fluid in the said closed chamber is
heated, cooled, or evaporated, with great rapidity.
The apertures in the plates and and passages, for giving communication from
space to space enclosed between the said plates may be of elongated or circular,
or of any other suitable shape and they may be made by means of a stamp, or
punch, as pipe-connections, which, in fitting together the plates, need only be
inserted into each other (as shewn in Figure 5), each of the plates is provided
near one of its ends with two such pipe-connections, so proportioned that the outer
diameter of one of such pipe connections on one plate equals the inner diameter
of the corresponding pipe connection on an adjacent plate when in position to be
connected. The plates should be stamped or punched uniformly, so that, in setting
up the apparatus the position of one plate need only be reversed in relation to the
other plate to make up a pair as shewn clearly by Figure 5. Plates so constructed
may be made to closely fit at the joints, so that no further intermediate packing
need be inserted between them, which renders the apparatus very economical in
construction.
In order to protect the plates from distortion, nipples, as at c are formed in the
plates a and b in the process of stamping they being so arranged as to coincide,
and bear on, each other, when the several plates are combined together so that any
deformation of the plate is effectually prevented. Owing to this arrangement
the said distance pieces or nipples are, in addition, constantly washed by the fluids
flowing past them through the closed chamber, so that the plates are not liable
to be immoderately heated.
.

page_text: Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is: -
1. Apparatus for the purposes referred to, made up of plates curved or bent at
their edges to form flanges by means of which they are securely and tightly
jointed together by screws or other fastenings and provided with nipples which
when the parts are fitted together are situated opposite each other, thereby pre-
venting the plates from being distorted and rendering it impossible for them to
be unduly heated, owing to the contact of the fluid constantly circulating past, or
around, the said nipples.
2. Apparatus of the kind referred to in the preceding claiming clause wherein
the perforations or apertures of the plates are connected by tube connections, so
proportioned that the outer diameter of one tube equals the inner diameter of the
other, so that in fitting together the several plates, no additional packing is required
to make good the joints between them.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.