Improvements in Churns for the Manufacture or Production of Butter.
Year: 1893

page_text: Date of Application, 7th Dec., 1893
Complete Specification Left, 7th Sept., 1894-Accepted, 24th Nov., 1894.
PROVISIONAL SPECIFICATION.
Improvements in Churns for the Manufacture or Production of
Butter.
I THOMAS NUTTALL of The Manor House Beeby in the County of Leicester-
shire, Stilton Checse Manufacturer do hereby declare the nature of this invention
to be as follows :-
This invention relates especially to improvements in that class of churn commonly
known as the "Disc churn" wherein the cream is subjected to the action of a
revolving disc or discs, and has for its object to remedy certain defects which are
found in practice to operate against the complete success of churns made on this
principle.
my method
In carrying out this invention I make the dasher or heater, which in
of construction takes the place of the "disc," in the form of a star with radiating
pointers by means of which the cream is better disintegrated and the butter is more
completely granulated; each granule being of a more uniform size. A further
advantage in this form of dasher consists in preventing the lodging of any
accumulation of cream in a thickened condition just before granulation takes place.
A further improvement consists in the employment of a cover or hood which I
prefer to make elliptical in shape and to which I fit a reservoir in such a manner as
to allow an inflow of water at any given temperature in the different stages of the
process of churning and thereby assist in the formation of the granules..
Dated this 7th day of December 1893.
+1
THOS NUTTALL.
COMPLETE DICITICATION
Improvements in Churns for the Manufacture or Production of
Butter.
: . * :
1, THOMAS NUTTALL, of The Manor House, Beeby, in the County of Leicester-
shire, Stilton Cheese Manufacturer 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 :-
This invention relates to improvements in that class of churn commonly known
as the "Disc" or Speedy churn wherein the cream is subjected to the action of a
revolving disc or discs, and it has for its object to remedy certain defects which are
found in practice to operate against the complete success of churns made on this
principle.
"
In carrying out my invention, I replace the disc or discs, by a dasher or beatér
in the form of a star having radiating pointers by means of which the cream is
better disintegrated and the butter is obtained in a more completely granulated
form than heretofore, whilst the butter granules are caused to be of a more uniform
size. A further advantage in this form of dasher consists in preventing the lodging
of any accumulation of cream in a thickened condition just before granulation takes
place. The dashers or beaters, of which I may use one or more at a time in a

page_text: churn, may be made of wood, metal or other suitable material, and can be ratiously
modified in construction.
In the accompanying drawings,
Fig. 1 is a side elevation and
Figs. 2 and 3 are cross sections on the lines and y y respectively of Fig. 1,
showing one construction of star shaped dasher or beater according to this
invention, wherein the central and outwardly extending pointed portions a and b
thereof, are made in one piece of suitable material such for example as wood or
metal.
Figs. 4, 5 and 6 are similar views to Figs. 1, 2 and 3 respectively showing
another construction in which each outwardly extending pointed portion band its
corresponding central portion a¹ are made in one piece with each other, but separate
from the corresponding adjacent parts, so that the dasher or beater consists of a
number of separate parts extending radially from a hub or boss c to which they are
fixed, or of which they may form part.
The edges of the outwardly extending portions of the dasher or beater may be
variously shaped. Thus they may be made of knife or wedge shape, as shown at d
in Figs. 4, 5 and 6 and in Fig. 9, hereinafter more particularly referred to, where
the central and extending portions of the dasher or beater are shown in one piece
as in the constructions shown in Figs. 1, 2 and 3. I have however found in practice
that the best results are obtained by making the said edges of concave form as
shown at din Figs. 1, 2 and 3, the converging concave channels thus formed
being made to unite at their inner ends and extend partly across the face of the
central portion of the dasher or beater as shown at d. The side faces of the
projecting portions may also be advantageously formed with radial concave
channels or grooves d³. By this construction, when the dasher or beater is in use,
cream undergoing conversion into butter, as well as the resulting butter granules,
will be acted upon in a more efficient manner than when the said edges are made
flat as in Figs. 4, 5, and 6. It is however to be understood that I do not claim
this peculiar construction of the projecting portions of the dasher or beater us
forming part of my present invention, as such construction forms part of the
subject matter of another application for Letters Patent filed by me and others
dated 29 May 1894 No. 10455.
In
Dashers or beaters according to this invention may be mounted to rotate about
a horizontal, vertical or inclined axis in a churning vessel of any suitable form.
the construction of churn I prefer to employ, the dasher or beater, or there may be
two or more of them, is fixed upon a horizontal rotary shaft mounted to rotate in
bearings in the ends of a fixed vessel made of barrel shape and provided with a
hinged cover having a rounded inner surface against which cream will be thrown by
the rotating dasher or beater, or by each of them when more than one is used,
and from which such cream can readily flow back to the lower portion of the
vessel.
Figs. 7 and 8 are front and end elevations respectively, and Fig. 9 is a cross
section of such a churn provided with three of my star shaped dashers or beaters
fixed on a horizontal shaft e adapted to be rotated at a high speed by a toothed
wheel and pinion 7 of which the latter is fixed on the shaft. h is the barrel
shaped churning vessel provided with a hinged cover of concave form internally.
This cover is arranged to extend the whole length of the vessel and is provided
with external strengthening ribs i that serve to hold the component parts of the
cover in the curved form. The strengthening ribs are made to serve also as
handles as shown, and by abutting against the exterior of the vessel when the
cover is opened, as stops to hold the cover in the open position. jis a cock for
running off the liquid contents of the vessel. To the cover may be fitted a reservoir
or funnel, as indicated in dotted lines at k in Fig. 7, by which water at a suitable
temperature can be introduced into the vessel at different stages of the churning
operation, and thereby assist in the formation of the butter granules as well
understood.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A churn comprising a vessel for containing cream, and a dasher or beater
mounted so that it can be caused to rotate within the said vessel and made in the
form of a star substantially as herein before described with reference to the
examples illustrated in the drawings annexed for the purposes specified.
Dated this Tch day of September 1894.
Dated this on day of September 1034.
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.