Year: 1897

page_text: I, GEORGE THOMAS MACFARLANE, of Broughton, near Kettering, in the County
of Northampton, Sailor, do hereby declare the nature of this invention to be as
follows:-
The invention relates more particularly to that class of churn known as the
disc churn.
According to my invention I mount in a suitable framing a container for the
cream which in some cases may be formed with double sides. In the interior of
this container I mount on a removable spindle one or more hollow discs each
provided with a filling orifice which enables them to be filled with hot water in
winter or with cold water or a suitable freezing mixture in summer.
These discs are preferably made of metal and may be mounted at a suitable angle
to the shaft or at right angles therewith.
On each side of the machine is mounted preferably in ball bearings a hollow
spindle through which the removable spindle is passed, which latter is preferably
made of round or square or rectangular section to fit correspondingly shaped holes
in the discs. When the removable spindle is withdrawn the discs can be removed
from the container for cleaning, filling or emptying purposes.
On one of the hollow spindles may be mounted a small chain wheel which may
be driven by means of a chain passing round a larger chain wheel, this latter
being driven by means of a pair of cranks like a cycle; a saddle and handles being
provided for the operator.
On the other hollow spindle I preferably mount a fly wheel.
The container is provided with a bung hole as usual through which the contents
are drawn off. In the interior of this bung hole and passing a certain distance
into the container is placed a tube made of fine wire gauze, the interior end of
which is covered with wire gauze, which when the bung is withdrawn enables the
butter milk to flow away but retains in the container all the small pieces of
butter, this can be applied to any churn.
The container is covered with a glass top which does not quite fit the container,
but leaves a small space on each side for ventilation.
By means of my churn I am enabled to raise or lower the contents thereof to a
suitable temperature which enables the butter to be made more rapidly than
with ordinary churns. The strainer as above described enables the churn to be
emptied with great rapidity and without the necessity of holding a strainer by
hand under the bung hole and can be applied to any class of churn.
Dated 10th 1907
HARRIS & MILLS,
23, Southampton Buildings, London, W.C., Agents.

page_text: ..
I, GEORGE THOMAS MACFARLANE, of Broughton, near Kettering, in the County
of Northampton, Sailor, 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 invention relates more particularly to that class of churn known as the
disc churn.
I will describe my invention in connection with the accompanying drawings
in which Fig. 1 is a side view, Fig. 2 a plan, Figures 3 and vertical sections
drawn at right angles with each other of the churn apart from its stand and
driving means, and Fig. 5, which is drawn to a larger scale than the other
figures, a section of parts of a churn provided with my improvements.
According to my invention I mount on a suitable framing a a container for the
cream which in some cases, as represented in the drawings, may be formed with
double sides b, b¹ thereby enabling the intervening space 62 to be filled with either
a heating or cooling medium as may be required. The contents of said space 2
may be run off therefrom by removing the plug 6³.
In the interior of this container I mount on a removable spindle
e a hollow
shaft carrying one or more hollow discs d'each provided with a filling orifice d³
fitted with a screw plug or other stopper thus enabling them to be filled with hot
water in winter or with cold water or a suitable freezing mixture in summer.
These discs d' may be made of metal, but preferably, they are made of wood;
one method of constructing these discs and of fixing them to the hollow shaft d
is represented in the drawings. In this case flanged sleeves are fixed to the
hollow shaft d and the disc sides are fixed to such sleeves, and the space
between the sides is enclosed by a rim d5 fixed thereto and rendered water
tight in any convenient manner. The filling apertures & are preferably formed in
the rims d³.
Ribs or beaters are formed on or fixed to the sides and rims 5. These
discs may as shown be mounted at right angles to the hollow shaft d or they may
be mounted at an angle thereto. I also preferably enclose the hollow shaft d
outside the discs by wood covering as shown.
The hollow shaft d is caused to rotate with the spindle c by means of keys d*
fixed to the interior of the hollow spindle d fitting a key way c¹ formed in the
• -spindle_c.
On the framing a at each side of the machine is mounted preferably in ball
bearings e a hollow spindle f through which the removable spindle c is passed,
which latter may be made of round or square or rectangular section to fit corre-
spondingly shaped holes in the hollow spindles f and to be compelled to rotate
therewith. I however prefer to form said spindle e circular as shown and to fix
it in position within the hollow spindles f and cause it to rotate therewith by
pin passed through a hole at each end of the spindle c and located within
cross slots one of which is formed in the end of a boss f' forming part of the
chain wheel whilst the other is formed in the outer end of the opposite hollow
spindle f. Thus by removing one of the pins the removable spindle
c can be
withdrawn from the hollow spindles f and hollow shaft d after which the discs &
can be withdrawn from the machine for cleaning or other purposes.
On one of the hollow spindles f I mount a small chain wheel 2, which is
driven by a chain 9 passing round a larger chain wheel h¹ fixed on a crank spindle h
rotated by means of a pair of cranks h² like a cycle. This spindle h is mounted

page_text: in bearings a fixed to the frame a; a saddle i and handles j are fixed to the
frame a for the use of the operator.
On the other hollow spindle f I mount a fly wheel f³.
The container is provided with a bung hole formed of an internally screw threaded
Hanged tube & passing through the double sides b, b and fitted with a screw cap or
stopper k. In the interior of this bung hole and passing a suitable distance into
the container is placed a strainer tube or chamber made of fine wire gauze.
Thus when the screw cap is removed from the bung hole k for the purpose of
emptying the container the strainer / enables the butter milk to flow away but
retains in the container all the small pieces of butter. This strainer can be applied
to other kinds of churns and can be made of other forms to operate in a similar
manner.
The container is covered with a glass top m preferably formed in two parts
fitted removably, into grooves 6 formed in the ends * of the container so. as to
leave a small space on each side for ventilation.
65 are vertical slots in the ends of the container outside the latter to receive the
parts of the top m, for convenience and safety when obtaining access to the interior
of the container. In Fig. 3 the top m is shown in position over the container whilst
in Fig. 2 it is shown stored in the vertical slots 65.
By means of my improved churn I am enabled to raise or lower the contents
thereof to a suitable temperature which enables the butter to be made more
rapidly than with ordinary churns.
The strainer k enables the churn to be emptied with great rapidity and obviates
the necessity for holding a strainer by hand or otherwise underneath the bung
hole.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
1. The improved churn constructed substantially as herein set forth and as re-
presented in the accompanying drawings.
2. The combination with churns of pedal driving apparatus substantially as
herein set forth and as represented in the accompanying drawings.
3. The combination with churns of a bung hole fitted with a strainer substanti-
ally as herein set forth and as represented in the accompanying drawings and for
the purpose stated.
4. In disc churns the combination of hollow discs and a container having double
sides substantially as herein set forth and for the purpose stated.
5. In disc churns the employment of hollow discs substantially as herein set forth
and for the purpose stated.
6. In churns the combination with the container of a glass cover so arranged
as to leave spaces for ventilation, substantially as herein set forth and represented
in the drawings and for the purpose stated.
1000 .0 .- ...1 נגד
HARRIS & MILLS,
23, Southampton Buildings, London, W.C., Agents.
HARRIS & MILLS,
23, Southampton Buildings, London, W.C., Agents.