IMPROVEMENTS IN CHURNG
Year: 1880

page_text: LETTERS PATENT to Commerzienrath Eduard Ahlborn, of Hildesheim,
Hannover, in the Empire of Germany, for an Invention of "IMPROVEMENTS
IN CHURNG"
PROVISIONAL SPECIFICATION left by the said Commerzienrath Eduard
Ahlborn at the Office of the Commissioners of Patents on the 16th December
1880.
Commerzienrath EDUARD AHLBORN, of Hildesheim, Hannover, in the Empire
of Germany. "IMPROVEMENTS IN CHURNS."
This Invention has for its object improvements in churns.
The improved churn consists of a cylindrical copper vessel carried upon trunnions
between two uprights, so that it can be easily tilted to pour out the contents, but
whilst churning it is retained by a bolt in an upright position. This cylindrical
vessel is formed with a tubular rim at the top, and water, either hot or cold, can
be admitted to this rim to regulate the temperature when churning. The rim is
perforated so that the water issues from it in fine jets and plays upon the exterior
of the cylindrical vessel; the water running down the cylinder is received into a
casing or jacket which surrounds the lower part of the vessel. The water may be
either retained in the jacket or may be allowed to run out by opening a cock
provided for the purpose. The agitation of the milk is effected by means of two
frames, one within the other, and which can be rotated in opposite directions about
the same vertical axial line. These frames receive notion from bevilled gearing.
A bevilled wheel on an horizontal axis drives two bevilled pinions on vertical axes;
one of the pinions gears with the upper part of the wheel and the other gears with
the wheel at the lower part. The axis of the lower pinion is tubular and the axis
of the upper pinion passes down through it. The outer beater frame is suspended
from a collar upon the tubular axis by two bars, which are clamped to the collar
by screws, but these screws can easily be removed to admit of the apparatus being
taken apart for cleaning. This beater frame is also controlled by a pivot fixed in
the centre of the bottom of the cylindrical vessel in which the milk is contained.
The inner beater frame is provided with a short axis, which is stept onto a pivot
provided in the centre of the outer beater frame, and at its upper end this axis is
capable of being coupled by a sliding clutch with the vertical axis of the upper
driving pinion, of which axis it then forms a prolongation.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, and of
an Order of the Lord Chancellor, filed by the said Commerzienrath Eduard
Ahlborn in the Great Seal Patent Office on the 27th June 1881.
Commerzienrath EDUARD AHLBORN, of Hildesheim, Hanover, in the Empire
of Germany. IMPROVEMENTS IN CHURNS."
"
This Invention has for its object improvements in churns.
The improved churn consists of a cylindrical copper vessel carried upon trunnions
between two uprights, so that it can be easily tilted to pour out the contents, but
whilst churning it is retained by a bolt in an upright position. This cylindrical
vessel is formed with a tubular rim at the top, and water, either hot or cold, can be
admitted to this rim to regulate the temperature when churning. The rim is
perforated so that the water issues from it in fine jets and plays upon the exterior
of the cylindrical vessel; the water running down the cylinder is received into a
casing or jacket which surrounds the lower part of the vessel. The water may be
either retained in the jacket or may be allowed to run out by opening a cock
provided for the purpose. The agitation of the milk is effected by means of two
frames, one within the other, and which can be rotated in opposite directions about
the same vertical axial line. These frames receive motion from bevilled gearing.
A bevilled wheel on an horizontal axis drives two bevilled pinions on vertical
axes; one of the pinions gears with the upper part of the wheel and the other gears
with the wheel at the lower part. The axis of the lower pinion is tubular, and
the axis of the upper pinion passes down through it. The outer beater frame is
suspended from a collar upon the tubular axis by two bars which are clamped to
the collar by screws, but these screws can easily be removed to admit of the
apparatus being taken apart for cleaning. This beater frame is also controlled by
a pivot fixed in the centre of the bottom of the cylindrical vessel in which the
milk is contained. The inner beater frame is provided with a short axis which is
stept onto a pivot provided in the centre of the outer beater frame, and at its
upper end this axis is capable of being coupled by a sliding clutch with the
vertical axis of the upper driving pinion, of which axis it then forms a
prolongation.
In the Drawings hereunto annexed Figure 1 shows a side elevation partly in
section, and Figure 2 an end elevation of a churn constructed as above
described.
A is a cylindrical vessel open at the top, and having two trunnions B projecting
from its sides. The trunnions rest in bearings upon two uprights forming part of
a frame C, the vessel can thus easily be tilted to pour out its contents. D is a bolt
carried by one of the uprights, and by means of which the vessel A can be locked
and held in a vertical position whilst churning. Around the top of the vessel is
a tubular rim A¹ provided with projecting nozzles, through which either hot or
cold water can be supplied to the rim. The rim is perforated on its under side, so
that the water issues from it and runs down the exterior of the vessel A; E is a
casing or jacket around the exterior of the lower part of the vessel A. The water
running down the exterior of the vessel A is received and held in this casing, or
can be drawn off therefrom through a cock F, as shewn in the horizontal section of
part of the vessel and casing at Figure 3. O is a cock by which butter milk can
be drawn off from the bottom of the vessel A; G, H, are the two frames which
can be rotated one within the other in opposite directions about the same vertical
axial line. The outer frame G is connected by the two rods G¹ and binding
screws G² with a disc at the lower end of a hollow spindle I. The inner frame H
is coupled by a shifting clutch J, as shewn, with a spindle K, which passes up

page_text: through the hollow spindle I. On the spindle I is a bevil wheel I', and on the
spindle K a bevil wheel K₁; L is a horizontal shaft having upon it a bevil wheel M.
The upper part of this wheel gears with the bevil wheel Ki on the spindle K, and
the lower part of the wheel with the bevil wheel I¹ on the spindle I; N are fast
and loose pulleys over which works an endless driving belt by which the shaft L
can be driven, and the two frames G and H revolved in opposite directions.
G³ is a pivot fixed to the centre of the bottom of the vessel, and entering a
conical hole in the centre of the bottom of the outer frame G to steady it when
being revolved; H³ is a similar pivot standing up from the bottom of the frame G
and entering a conical hole in the bottom of the inner frame H.
It will be seen that by releasing the screws G² and moving the sliding clutch J
that the inner and outer beater frames can be quickly disconnected from their
axes and taken out from the vessel A, and allow of this vessel being thoroughly
cleansed.
Having thus described the nature of my Invention, and the manner of performing
the same, I would have it understood that I claim,―
First. The construction of churns, substantially as herein before described.
Second. Coupling the two beater frames to the axis, by which they are revolved
in such a way that they can readily be disconnected from their axes and removed,
substantially as herein before described.
Third. Forming the containing vessel A of the churn with a hollow perforated
rim surrounding it at the top around its exterior to allow of hot or cold water
being applied to the exterior of the vessel, and also with an exterior jacket around
the lower part of the vessel A for holding the water, substantially as herein before
described.
In witness whereof, I, the said Commerzienrath Eduard Ahlborn, have
hereunto set my hand and seal, this Sixteenth day of June, in the year of
our Lord One thousand eight hundred and eighty one.
EDUARD AHLBORN, (L.S.)
Commerzienrath.