AN IMPROVED CHURN
Year: 1885

page_text: I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of my invention for "AN IMPROVED CHURN
" to be as follows:-
This invention relates to a butter-making machine or churn of that class in
which the churning is effected by means of rotating wings or dashers. The
improved machine is distinguished from other machines of this class chiefly for the
reason that its internal wall is provided with ribs or projections so that it is zigzag
in transverse section whereby a much better division of the milk is effected than
with ordinary churns. The object of this construction is to accelerate the
formation of butter. By means of the improved machine it is rendered possible to
produce butter from cream in from 1 to 2 minutes, from the best milk in from
2 to 3 minutes and from good milk in from 3 to 4 minutes.
The machine constructed according to this invention consists of a cylindrical
receptacle, the inner sides of which are provided with vertical ribs; of a movable
vertical shaft at the lower end of which are secured perforated wings or dashers;
of a cover provided with a funnel and serving to close the machine; of a double
pulley arranged above the cover at the upper part of the said shaft, a cord being
wound upon the said pulley with one end to the right and with the other end to
the left; and of a cross bar which maintains the shaft in a vertical position.
In use the machine is first fixed upon a table or in some other suitable position;
the upper cross bar is then removed and the shaft together with the cover is lifted
out of the machine. The milk or cream is now poured into the receptacle until it
is two-thirds full, so that of the space remains for the movement of the milk.
The shaft is then inserted at its lower end in a step bearing situated at the bottom
of the machine, the machine is closed by the cover and the cross-bar is fitted upon
the upper end of the shaft. The two ends of the cord wound upon the double
pulley are then alternately pulled to and fro whereby motion is imparted to the
shaft and to the dashers therein.
.

page_text: The number and shape of the wings or dashers may vary and instead of using
a cord and pulley to cause the rotation of the dashers the latter can be effected by
means of toothed wheels or by means of a belt pulley or an Archimedian screw, or
by any other suitable driving mechanism. Moreover, the rotation of the dashers
may be continuous instead of taking place alternately to the right and left.
The internal wall instead of having a zig-zag shape can be provided with pro-
jections of other shapes which can be attached to the internal wall of the receptacle
or formed in the said internal wall.

page_text: I, WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, & Co, Patent Agents,
Southampton Buildings in the County of Middlesex do hereby declare the nature.
of this invention and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement :—
This invention relates to a butter making machine or churn of that class in.
which the churning is effected by means of rotating wings or dashers.
The improved machine is distinguished from other machines of this class, chiefly
for the reason that its inner surface is provided with ribs or projections, (so that.
it has somewhat of a zigzag shape in horizontal section) by means of which a much
better division of the milk is effected than with ordinary churns.
The object of this construction is to accelerate the formation of butter.
By means of the improved machine it is rendered possible to produce butter.
from cream in from 1 to 2 minutes, from the best milk in from 2 to 3 minutes, and
from good milk in from 3 to 4 minutes.
In the accompanying drawing
Figure 1 is a front elevation of a churn or butter making machine constructed
according to the present invention, and designed to be driven by hand by means
of a cord and pulley.
Figure 2 is a horizontal transverse section of the same.
Figure 3 is a side elevation, and
Figure 4a top view of the machine.
The machine constructed according to this invention consists of a cylindrical
receptacle A, the inner sides a of which are provided with vertical ribs; of a
movable vertical shaft B at the lower end of which are secured perforated wings
or dashers bb; of a cover O provided with a funnel and serving to close the
machine; of a double pulley D arranged above the cover at the upper part of the
said shaft, a cord E being wound upon the said pulley with one end to the right
and with the other end to the left; and of a cross bar F which maintains the
shaft in a vertical position.
In use the machine is first fixed upon a table or in some other suitable position,
the upper cross bar F is then removed and the shaft B. together with the cover O
is lifted out of the machine. The milk or cream is now poured into the receptacle
until it is two thirds full, so that of the space remains for the movement of the
milk. The shaft is then inserted at its lower end in a step bearing K situated at
the bottom of the machine. The machine is closed by the cover C and the cross
bar F is fitted upon the upper end of the shaft B. The two ends of the cord E
wound upon the double pulley D are then alternately pulled to and fro, whereby
motion is imparted to the shaft and to the dashers thereon until the butter
is ready.
I sometimes provide the funnel O with two or more perforated wings as shown
in Figure 1 in order to increase the effectiveness of the machine; these wings by
dividing the milk or cream dashed against them by the wings or dashers 6 greatly

page_text: assist the operation of the latter. The number and shape of the wings or dashers b
may vary; thus for instance their edges may be smooth or toothed or serrated as
indicated in Figure 1.
The cross bar F is held in position during the working of the machine by a
catch consisting of two springing rods, bent into hooks at their top and entering
slots in the cross bar, as shown in Figures 1, 3 and 4.
Instead of using a cord and pulley to cause the rotation of the dashers, the
latter can be effected by means of toothed wheels, or by means of a belt pulley or
an archimedian screw or by any other suitable driving mechanism.
Moreover the rotation of the dashers may be continuous instead of taking place
alternately to the right and left.
The internal wall, instead of having an approximately zig-zag shape, can be
provided with projections of other shapes which can be attached to the internal
wall of the receptacle or formed integral with the said internal wall.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, as communicated
to me by my foreign Correspondent, I declare that what I claim is ;-
First. In a churn or butter making machine, the receptacle A, having ribs or
projections upon its internal surface, in combination with the perforated wings
or dashers b.
Second. The combination of the shaft B and wings or dashers, with the
removable cross-bar F.