An Improved Apparatus for Warming, Scalding, and Refrigerating Milk and other Dairy Produce.
Year: 1887

page_text: Date of Application, 1st Mar., 1887.
Complete Left, 30th Nov., 1887
Complete Accepted, 13th Jan., 1888
PROVISIONAL SPECIFICATION.
An Improved Apparatus for Warming, Scalding, and Refrigerating
Milk and other Dairy Produce.
I, LAWRENCE WATSON of 4 Park Road Middlesborough-on-Tees in the County of
York, Dairyman do hereby declare the nature of this invention for WARMING, SCALDING,
AND REFRIGERATING MILK AND OTHER DAIRY PRODUOE to be as follows:-
:-
An invention for the warming & scalding of milk or other dairy produce, by the
application of Steam, Hot Air, or Gasses passing through or held in Coils or a series
of pipes or Cellular Boxes, manufactured of Iron, Steel, Brass, Copper, Tinned or
other Metals, Glass, Porcelain, or other Earthenwares; as also for the subsequent
process of refrigerating Milk or other Dairy produce, by the passing of Cold Water,
Air, or Gasses through the same apparatus.
D
.

page_text: Milk and other Dairy Produce.
I, LAWRENCE WATSON of 4 Park Road, Middlesbrough-on-Tees in the County of
York, Dairyman 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 has for object the warming and scalding of milk or other dairy
produce, by the application of Steam, Hot air, or Gases, passing through or held in
Coils or a series of pipes or cellular boxes, constructed of Iron, Steel, Brass, Copper,
Tinned or other metals, Glass, porcelain or other earthenware; and also the subsequent
process of refrigerating milk or other dairy produce, by the passing of cold water, air
or gases through the same apparatus. And in order that the construction of my
improved apparatus may be properly understood, I hereunto append the following
drawings shewing such apparatus when made of metal, of circular, oval or any other
suitable form.
Fig. 1. is an elevation of the apparatus when made circular. Fig. 2. is a plan and
Fig. 3. a sectional elevation. Fig. 4. is an elevation with one half in section of the
apparatus when made in an oval form. a, is the top or receiving and distributing
vessel into which the milk or other liquid under treatment is poured, it is provided
with perforations a¹ to allow of the milk or other liquid to pass through slowly. bis
the lower vessel for receiving the milk or other liquid after being warmed or scalded.
c, is a helical coil of metallic tubing, the convolutions of which are some distance
apart, the interstices being filled in with another helical coil d, of wire of any suitable
cross section (I prefer square.) This and the coil c, are soldered, brazed or otherwise
permanently joined together at their point of contact so that when thus combined
they form a kind of corrugated surface which acts as a delayer and conductor of the
milk or other liquid in its descent from the vessel a, to the vessel b.
e, e, are pipes in
connection with or continuation of the helical tubing and form the entrance and exit
for steam, hot air or heated gases which may either continuously pass there-through
or be retained therein for an indefinite time as may be found desirable or until the
operation of warming or scalding of the milk or other produce has been effected.
f. (Figs. 1. and 2.) is a bar for swinging and holding the inlet and outlet pipes e, e.
g. g. are unions on the pipes e, e, for connection with other pipes for conveying steam,
hot air or other medium to pass through the coil c. h, a flange or rim at the upper
part of the coil c, and upon which rests the vessel a. i, is a similar flange or rim at
the lower part of said coil and upon which it stands in the vessel b.-k, (Fig. 4.) are
uprights, one of which supports the entrance and exit pipes e. e.-, is an outlet in
the lower vessel or receiver for the removal of the milk or other liquid after
treatment.

page_text: Steam, hot air or gases may be caused to enter the coil either at the top or bottom
thereof as desired.
The upper vessel
a,
and the lower vessel b, are removable at pleasure.
The milk or other liquid to be treated may be caused to pass through the helical
tubing and the heating or cooling medium (as the case may be) is then applied to the
exterior surfaces of the said coil.
In some cases it may be desirable to immerse the coiled portion c, of the apparatus
in the milk or other liquid to be heated or cooled, in such case the upper vessel and
the lower vessel b are removed. The heating or cooling medium passing through as
before.
When the operation of refrigeration is required to be performed, the helical tubing c,
is supplied with cold water, air or gases, the supply of cold water may be from any
convenient source so as to cause a continuous flow therethrough, it or the cold air
or gases may enter the coil either at the upper or lower pipe, as in the case of warming
or scalding.
Instead of a coil of metallic tubing as previously referred to, a number of separate
portions (which I will call "cells") may be used, each part being so constructed as to
form a portion of a helix, so that when put together a continuation of such helix
may be effected. These may be cast of suitable non-corrosive or other metal, tinned,
or they may be of glass, porcelain, or other earthenware and so arranged as to be
readily bolted or clipped together and separated when required for the purpose of
cleaning.
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 :-
1. In apparatus such as hereinabove referred to for warming, scalding or
refrigerating milk or other dairy produce, the use of a helical metallic tube, or other
helix made in sections of metal, glass, porcelain or other earthenware, and bolted or
clipped together, substantially as described.
2. In combination with a helix of metal, glass or earthenware in one or more
parts as referred to in Claim 1. an upper vessel such as a. for receiving and distributing
milk or other dairy produce to be heated or cooled, and a vessel or dish b, for receiving
the same after treatment, substantially as described.
3. The use of the improved apparatus or the coiled portion thereof for immersion
in milk or other dairy produce for the purpose of heating or cooling the same, sub-
stantially as described.
4. For warming, scalding and refrigerating milk and other dairy produce, apparatus
such as hereinabove referred to, constructed arranged and operating substantially as
hereinabove described with reference to the drawings.
Dated this 29th day of November 1887