Improvements in Churns.
Year: 1898

page_text: Date of Application, 4th Oct., 1898-Accepted, 12th Nov., 1898
Improvements in Churns.
I, PER ARON WALLER, of Odengatan 10, Stockholm, in the Kingdom of Sweden,
Engineer, 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 churns of the kind having an oscillat-
ing rotary motion, the said improvements comprising an arrangement for suspend-
ing the churning vessel on a vertical pivot, whereby an even and easy running
of the churning vessel is obtained without the necessity of centreing the said
vessel, as hitherto, and a driving arrangement for such churns.
In the accompanying drawing:-
Figure 1 is a vertical section; and
Figure 2 is a plan view of a churn made according to this invention.
The arrangement for suspending the churning vessel consists of a pivot A,
extending upwards from a suitable bed or foot plate, and of a tube or sleeve B,
located centrally within the vessel and extending upwards from the bottom of
the same,
the said tube or sleeve being closed at its upper end. The tube or sleeve
is preferably of such a length that the closed upper end thereof is situated above
the centre of gravity of the vessel, which is therefore in a stable position when
suspended on the pivot. At the lower end of the tube B I provide a ring C or the
like which surrounds the pivot A and serves to guide the vessel at the lower end
of the tube, the ring, for this purpose, resting against and sliding on the periphery
of the pivot.
The driving arrangement consists of studs 1, fixed on the churning vessel and
having hooked or otherwise fastened to them the inner ends of spiral springs 2,
the outer ends of which are hooked on studs 3 or other fastenings on the bed or
foot plate 4. The fastenings 1 of the spiral springs should be arranged
diametrically on the vessel, if there are only two such springs. In the case where
three or more springs are used (in Figure 2 one spring is shown in full lines and
two springs in dotted lines as examples) the springs need not be so arranged but
can be suitably disposed with one spring on one side of the vessel with respect to
the other springs. 5 is a rope, cord or belt fixed to the churning vessel at a suit-
able point and in a suitable manner, for instance to an eye 6 on the outside of the
vessel, as shown.
The operation of the driving arrangement is as follows:-
When the belt 5 is pulled, the inner ends of the springs 2 are caused, in conse-
quence of the rotation of the vessel, to move sideways, whereby they are stretched,
and when the belt is released the springs will turn the vessel in the opposite
direction. By reason of its inertia the vessel rotates in this latter direction further
than the springs tend to turn it so that the latter retard the rotation and the
velocity of the vessel is decreased. The pull on the rope, therefore, serves to
maintain the oscillating motion of the vessel and to limit the oscillations.

page_text: 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. An arrangement for suspending churning vessels of the kind having an
oscillating rotary motion, such arrangement consisting of a pivot A extending
upwards from a suitable bed or foot plate and of a tube or sleeve B, located
centrally in the vessel and closed at its upper end, a ring C or the like, which
extends inwards towards the periphery of the pivot, being arranged at the lower
open end of the said tube or sleeve for the purpose of steadily supporting the
vessel, the tube or sleeve of which is swung on the pivot, substantially as herein-
before described.
2. A driving arrangement for churning vessels suspended on a vertical pivot
and having an oscillating rotary motion, such arrangement consisting of a rope,
cord or belt 5 fixed to the oscillating vessel and of two or more spiral springs 2,
each fixed at one end to the bottom of the churning vessel and at the other end
to a stationary fastening, so that, when the vessel is turned in one direction by
a pull on the rope or belt, the springs are put in tension for turning the vessel
in the opposite direction, when the rope or belt is released, substantially as herein-
before described.
Doted the 4th day of Ostalo 1000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.