An Improved Milk Can or Vessel Specially for Employment in Separating and Drawing off the Skim Milk from the Cream.
Year: 1888

page_text: Date of Application, 21st Aug., 1888
Complete Specification Left, 20th May, 1889-Accepted, 22nd June, 1889
PROVISIONAL SPECIFICATION.
An Improved Milk Can or Vessel Specially for Employment in
Separating and Drawing off the Skim Milk from the Cream.
I, SAMUEL BARNETT, of 1 School Street, Wolverhampton in the County of
Stafford, gentleman, do hereby declare the nature of this invention to be as
follows:-
:-
The chief object of this invention is the construction and employment of an
improved milk can or vessel whereby the skim milk may be separated from the cream
and drawn away therefrom with great facility either in greater or smaller
quantities at a time, as sold at the dairy or at a milk parlour or restaurant, or at one
operation.
.
A milk can or vessel, constructed according to this invention, is preferably of a
plain cylindrical form except for a lip projecting on one side at the top, and covered
with a lid which is, preferably, hinged, and which covers the lip also; and handles
are provided at back and front by which to raise and carry the can and by which to
tilt it for pouring out at the lip. A tap is fixed to the front of the can at or nearly
close to the bottom thereof, and the special feature of the invention consists in placing
a strainer in such position within the can that all liquid passing therefrom to the
tap must pass through the strainer. The size of the perforations or of the mesh of
the strainer is such that the skim milk will pass therethrough after the collection of
the cream on its surface, but not the cream, and thus the skim milk may be drawn off
as required, leaving the cream in the can. The cream may be poured out through
the lip, after the skim milk has been drawn off, by tilting the can for such purpose;
but to enable the cream to be drawn off through the tap, if desired, and also to
facilitate the cleaning of the strainer, the strainer is fitted into vertical guides so that
it may be raised or removed as desired.
The employment of a can or vessel as above described permits of fresh quantities
of unskimmed milk being added thereto from time to time and the skim milk
drawn off therefrom until any desired quantity of cream has accumulated in the
vessel.
If it is desired to use the can merely as a temporary receptacle for fresh milk
which is to be drawn therefrom by the aid of the tap, the strainer may be raised or
removed to leave a clear passage to the tap, or the fresh milk may pass to the tap
through the strainer.
DJ L
1000
STEPHEN WATKINS,
Wolverhampton and Walsall, Agent for the Applicant.
COMPLETE SPECIFICATION.
An Improved Milk Can or Vessel Specially for Employment in
Separating and Drawing off the Skim Milk from the Cream.
I, SAMUEL BARNETT of 1 School Street, Wolverhampton, in the County of
Stafford, gentleman, 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 :-
The chief object of this invention is the construction and employment of an
improved milk can or vessel whereby the skim milk may be separated from the
cream and drawn away therefrom with great facility either in greater or smaller
quantities at a time, as sold at the dairy or at a milk parlour or restaurant, or at one
operation.

page_text: A milk can or vessel constructed according to this invention, is preferably of a
cylindrical form, and is covered with a lid, which may be hinged or loose. A tap is
fixed to the front of the can at the bottom thereof; and the special feature of the
invention consists in placing a strainer in such position within the can that all liquid
passing therefrom to the tap must pass through the strainer. The size of the
perforations, or of the mesh of the strainer, is such that the skim milk will pass
therethrough after the collection of the cream on its surface, but-not-the cream, and
thus the skim milk may be.drawn off as required, leaving the cream in the can. The
can may be formed with a lip through which the.creain may be poured out, after
the skim milk has been drawn off through the tap, by tilting the can for such
purpose; but to enable the cream to be drawn off through the tap, if desired, and
also to facilitate the cleaning of the strainer and of the inner end of the tap, the
strainer may be fitted into vertical guides so that it may be raised or removed as
desired. The can may be used, if desired, merely as a temporary receptacle for
fresh milk which is to be drawn therefrom by means of the tap, in which case the
strainer may be raised or removed to leave a clear passage to the tap, or the fresh
milk may pass (so long as the cream is not separated therefrom by collecting on the.
surface of the milk) through the strainer to the tap.
A moveable tray, having a strainer which will allow skim milk but not cream to.
pass through, and in such position that the skim milk may be drained off from the
tray, may be carried in the bottom of a can fitted with a strainer as above described,
by which the cream may be lifted out of the can after the skim milk has been drawn
therefrom.
Referring to the drawings herewith, figure 1, is à vertical section through the
centre of a milk can, constructed according to this invention, having a hinged lid
and shews the strainer in section but the tap in side elevation. Figure 2 is a section
of the can taken at right angles to the section shewn by figure 1, and shews the
strainer in front elevation. Figure 3 is a plan of this can with the lid opened back.
A tap a is fixed in the side of the can at the bottom thereof, and the bottom of the
can should incline towards the tap. A moveable strainer is carried in vertical
guides e in such position in relation to the tap, as shewn, that any liquid flowing..
into the tap must pass through the strainer.. A segmental-shaped part d of the
cover is permanently fixed on the can, and the part e of the cover is hinged along
the front edge of the part d. Holes ƒ for ventilation are perforated through the lid
and thus the can is made quite sanitary. The lid is shewn, by broken lines figure 2,
as raised into a vertical position. The can is formed with a lip g on one side, for
pouring out the cream after the skim milk has been drawn off through the tap,
and a projection g¹ is formed on the lid to cover the lip when the lid is closed. It
is preferred to provide a rim h around the underside of the lid and projection g¹
thereof to fit within the can and lip when the lid is closed. Handles i are fixed. to
the can by which it may be carried about, and may be tilted for, pouring out at
the lip.
The size of perforations or mesh which will allow, the, skim milk to pass through
(or, if desired, fresh milk), but will retain the cream, is easily ascertained by a very
simple experiment. I use a number of perforations each of about No. 21 Imperial
wire guage in diameter, -but wire gauze having openings each of a corresponding
area may be employed.
Figure 4 is a sectional view, corresponding to figure 2, of a can, constructed
according to this invention, fitted with a loose lid e¹, and a removeable tray by which
the cream may be lifted out after the skim milk has been drawn off by the tap a.
Figure 5 is a plan of such can, with the lid removed: The can has a strainer b
through which the skim milk passes to the tap. The tray also is provided with a
strainer m so that the skim milk therein may be drained away, and pass off through
the tap. The tray, is provided with handles n by which it is lifted out from the can;
and the can is provided with handles by which it is carried. This, can may be
provided with a lip at the side, if desired, for pouring out the cream if the tray is..not
used, and in such case the handles are conveniently fixed at the front and back,

page_text: respectively, of the can, instead of at the sides as shewn. The cream may be lifted
out by means of the tray previously to the skim milk being drawn off through the
tap, if desired, in which case the skim milk drains out of the tray, through the
strainer affixed thereto, as the tray is raised out of the liquid in the can. In lieu of
employing simply a tray as shewn, a loose lining of the depth, or approximately so,
of the can may be employed, having a strainer through which the skim milk may
drain off, either through the tap, or into the can as the lining is lifted therefrom;
and this arrangement may be employed in some cases in lieu of a strainer in the can
itself, such as when an earthenware can or vessel is employed in which it is difficult to
attach a strainer.
The employment of a can or vessel as above described, whether with or without a
tray as described, permits of fresh quantities of fresh milk being added thereto from
time to time and the skim milk being drawn off therefrom until any desired quantity
of cream has accumulated in the vessel. Such a can is very useful also for testing
the quality of milk, as the whole of the cream is collected and is free from any
admixture of milk.
The can may, of course, be made of any suitable material, such for instance, as
tinplate, enammelled iron, copper, wood, earthenware, stoneware, or porcelain, and nay,
of course, be used without a lid, if desired.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is :-
The improved milk can or vessel, whether employed with a tray or loose lining or
not, substantially as described and shewn, for the purpose or purposes set forth.
Dated this 18th d 1000
STEPHEN WATKINS,
Wolverhampton and Walsall, Agent for the Applicant.