Year: 1887

page_text: We, PETER VRO POULSEN BERG, Engineer, of Askor, Denmark, and OLE SÖRENSEN
of Kolding, Denmark, Merchant, do hereby declare the nature of our said 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 cream testers, in order to ascertain the
quantity of cream in different samples of milk, from different cows and different stalls,
in an easy, rapid and practical manner.
The cream tester as represented in the accompanying drawings, can, according to
requirements, be made for testing a smaller or larger number of samples of milk.
Figure 1 is a side view and Figure 2 a top view of our improved cream tester,
Figure 3 is a side view and Figure 4 a top view of a modification of our said cream
tester.
Figures 1 and 2 represent an apparatus for testing 162 samples of milk. The
rotary disc with handle g is provided with 54 slots s cach two of which run parallel
to each other for receiving 27 shallow receptacles with each 6 testing glasses whereby
the two hooks of each receptacle gear onto two of the slots in the said disc r.
central portions of the receptacles are removed for lightness sake.
The
Figures 3 and 4 represent an apparatus for testing 45 samples of milk and differs
from the foregoing described apparatus that the rotary disc is provided with 15
recesses a so that 15 arms bare formed the latter being bent upwards so as to form
hooks as represented in Figure 3.
The receptacle or holders with perforated sides are at the centre of their upper
ends provided with suitable noses n so that after the receptacles or holders have been
filled with each 3 testing tubes the same can be hung in the recessed parts a so that
the noses n will gear on each side into one of the hooked arms b. After the samples
of milk have been poured into the testing glasses the latter are placed in the receptacle
or holder these hung in the rotary disc and the apparatus set in rapid rotation. The
centrifugal power so developed causes the receptacles or holder and the glasses
contained in the same to take up a horizontal position and causes the cream to readily
eparate from the milk which forms a layer at the upper part of the testing glasses so
Гр '

page_text: that it can be readily detected as the color of the cream is other than that of the white
milk. The proportions of cream and milk can be ascertained by measuring the
thickness of the layer of cream by means of a scale which can be applied to the testing
glasses direct or form a separate scale by itself.
Having now particularly described and ascertained the nature of our said invention
and in what manner, the same is to be performed, we declare that what we claim is―
A cream tester operated by hand or other power or a centrifugal machine consisting
of a rotary disc with parallel slots s for receiving the hook like lateral extensions of
the flat receptacle or holder with the testing glasses whereby the two sides of the
holder or receptacle fare cut away to produce greater lightness, substantially as
described in the foregoing specification and shown in the accompanying drawings.
Dated this 25th day of March 1887.
PHILIP M. JUSTICE,
Associate Agent.