Year: 1895

page_text: Date of Application, 26th June, 1895
Complete Specification Left, 25th Mar., 1896-Accepted, 25th Apr., 1896
HENRY BAMFORD Senr. SAMUEL BRASSINGTON BAMFORD HENRY BAMFORD
Junr. JOHN BAMFORD Agricultural Engineers of Uttoxeter in the County of
Stafford, do hereby declare the nature of this invention to be as follows:-
-
Our invention refers to refrigerators for cooling milk beer or other liquids, and
consists of the following improvements
:-
In constructing refrigerators for cooling milk beer &c. it is usual to make two
corrugated sheets of metal one being placed over the other thus allowing a space
between for the cooling liquid to pass, the milk, beer or other liquid to be cooled
running over the outside surface of the corrugated sides.
These sides are held in position by two solid ends which keep them at the required
distance apart for the cooling liquid to pass between.
In each of the said ends a hole is made for the ingress and egress of the cooling
liquid..
This usually enters at the lower part-if the refrigerator is placed vertically-
and flows out at the top part of the opposite end after passing through the
refrigerator.
It sometimes happens that foreign matter or dirt passes into the refrigerator with
the cooling liquid, consequently the space between the plates or walls of the
refrigerator become blocked and if air or water at a high pressure is used to remove
the obstruction, such pressure causes the sides to become distended or bulged out,
thereby spoiling the refrigerator for further use.
We now propose to use internal stays to prevent such bulging or distension of the
corrugated sides in the following manner :-
Before the corrugated plates are put together we affix to each inner side by
soldering or otherwise, a number of S shaped plates or hooks, in positions where
distension or bulging is likely to occur.
These are so fixed that when the two corrugated plates are put together-which
in this case is done by sliding one against the other-the said plates are thus held
together in their proper position and distance apart, by the S shaped peices hooking
over each other, these S peices being fastened alternately on opposite sides of the
refrigerator, consequently when the sides of the refrigerator are thus internally
locked together they retain their position even when force or extra pressure is used
for cleaning out the refrigerator.
Dated this 22nd day of June 1895.
H. BAMFORD, SENR.
SAMUEL B. BAMFORD.
HENRY BAMFORD, JR.
JOHN BAMFORD.

page_text: We, HENRY BAMFORD, Senior, SAMUEL BRASSINGTON BAMFORD, HENRY
BAMFORD, Junior, and JOHN BAMFORD, of Uttoxeter, in the County of Stafford,
Agricultural Engineers, 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 :-
Our invention relates to refrigerators or apparatus for cooling milk, beer and
other liquids, and to that kind of apparatus wherein two corrugated sheets of metal,
having a space between them through which a cooling liquid is caused to pass and
over which the liquid to be cooled is caused to flow, are employed.
In using refrigerators of this kind it sometimes happens that owing to an
abnormal pressure between the corrugated sheets, such, for instance, as is produced
when the outlet pipe for the circulation of the cooling liquid becomes choked, the
said sheets are bulged or pressed outwards thereby injuring the refrigerator. Now
the object of our invention is to obviate the liability of such bulging or distension,
and to this end we make use of internal stays each of which is made in two parts,
which parts are fixed on the corrugated plates in such a manner that by sliding them
together the parts of the stays will become locked.
To enable our invention to be fully understood we will describe the same by
reference to the accompanying drawing, in which :-
Figure 1 is an elevation of a portion of a refrigerator having our stays applied
thereto :
Figure 2 is a section on the line 2-2, Figure 1; and,
Figure 3 is a view similar to Figure 2 but shewing the two plates disconnected.
a, a are the ordinary corrugated plates which are held in position at the required
distance apart by two solid ends in the usual manner, one of the said ends being
provided with a hole for the ingress of the cooling liquid and the other with a hole
for the egress of the said liquid.
b, b' are the two parts or members of our stays, the parts b, b being fixed upon the
plate a and the parts 61, 6¹ upon the plate a'. Each part is bent to fit against
the inner surface of the corrugated plate to which it is to be fixed and as shewn in
the drawing is somewhat of an S-shape. In practice each part is preferably
soldered to its plate, and the object of adopting the S form is to afford a
considerable surface to prevent the possibility of the plate being pulled away from
the stays under the pressure to which the refrigerator may be subjected.
It will be noticed that some of the stay parts shewn in Figures 2 and 3 of the
drawing are represented as being made of double S-form.
In putting the refrigerator together the two plates a, a¹ are placed one against the
other so that the stay parts on one plate are against the stay parts on the other
plate and then one plate is moved relatively with the other so that the ends of the
parts b, b of the stays will engage with the ends of the parts b¹, bl.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In refrigerators or liquid cooling apparatus of the kind wherein two corrugated
metal sheets are employed, the arrangement of stays formed in two parts respectively
fixed to the plates and adapted to be engaged or disengaged by moving the said
plates longitudinally relatively with one another, substantially as described.
2. The improvements in the manufacture of refrigerators or apparatus for cooling

page_text: liquids, substantially as hereinbefore described and illustrated in the accompanying
drawing.
Dated this 25th day of March 1896.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.