Improvements in or connected with Cream Elevators.
Year: 1894

page_text: Date of Application, 16th Aug., 1894-Accepted, 29th Sep., 1894
COMPLETE SPECIFICATION.
Improvements in or connected with Cream Elevators.
I, THOMAS THOMASSEN SABROE, of Aarhus, Denmark, 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 an elevator for cream which in a sure and reliable
manner brings the cream from the centrifugal to the pasteurizing apparatus and it
is hoped will be gradually brought into use in every dairy. The perfectly reliable
way in which this work goes on without any supervision is of the utmost importance,
as stoppages partly arrest the whole working of the dairy, partly cause spill of
cream, and consequent losses of considerable value. All forward or backward
going pulley cords have consequently been avoided as unreliable.
The apparatus, which on the accompanying drawing is shown in front elevation
(Figure 1), and in side elevation (Figure 2), consists of an upright beam (a pillar
in the dairy room) A carrying at its top an arm with bearing and a fast and loose
sheave B. B, which by means of a belt is set in motion by a shafting in the dairy
room. On the axle of the sheaves a chain wheel C is keyed on, thus turning
together with the fast sheave. This chain wheel moves the chain 1) constantly in
the same direction. The chain is kept tight and guided by two other chain wheels,
one E below and another F above in the same level as C, the chain thus forming
an oblong triangle with rounded off corners. To the outside of the chain a rod G
is fastened by means of one of the bolts or rivets that keep the links of the chain
together, or by a separate bolt. The other end of this rod is fastened loosely to
a guide H which can glide up and down a guiding rod I fastened by two arms to
the pillar A. This motion is eased by the guide H being provided with rollers
that bear against the guiding rod, so that the friction is considerably reduced.
The arm J of the guide carries the cream-container K which is movable around
the arm.
In order to preserve the right position of the container, this one is
furthermore by means of an arm L connected with another guide M which in a
similar manner as the guide H glides on another guiding rod N fastened to the
same or similar arms on the pillar A, as the first mentioned guiding rod I. The
two guiding rods I, N, are running parallel for a while and the cream-container K
will as long as it moves up or down on this piece retain its normal position, but
a part of the guiding rod N is bent to a desired curve.
It will easily be seen that as soon as the upper guide M of the cream-container K
enters upon this curve, the container K will alter its position and the guiding
rod N is formed in such a way that the container K gets a suitable inclination
when at the proper height so that the contents may be poured into the reservoir P
of the pasteurizing apparatus, which here is shown as placed on an arm fastened to
the pillar A.
The up and downward motion of the cream-container K is solely caused by the
chain D which constantly moves in the same direction and through the rod G and
the guide H carries the cream-container K with it. The rod G being placed on
the side of the chain D it passes clear of the chain wheels C, E, F, and while the
rod passes the upper level part of the chain D, the container K will remain nearly
stationary while pouring out its contents and this arrangement is made in order to
allow it sufficient time to empty itself completely.
When the rod G has passed the second one of the two chain wheels above it
goes again downward with the other part of the chain, the container K going with

page_text: .
it, righting itself more and more until it, the guide M having reached the perpen-
dicular part of its guiding rod N, has resumed its normal position which it retains
while going further down until the guide H hits against the socket Q provided
with rollers and movable up and down the guiding rod I. When the guide H hits
the socket Q this is pressed downward, the chain R then turns the cream-receiver S
upon its axle T the receiver S emptying its contents into the container K on the
elevator, this being at that moment right below the spout of the receiver S when
this begins to incline. The counter-balance U brings the receiver S back to its
original position. In order that the rod G may pass the chain wheel E and leave
the receiver S sufficient time to empty itself every time the container K on the
elevator passes it, the rod G is formed with an oblong slot V.
The rod G and the guide H, as well as the socket Q do not at once go upward
when that link in the chain whereto the rod G is fastened has passed the downmost
point of the lower chain wheel E but commences its upward movement at the
moment when the chain pin W has passed through the whole length of the
placket V whereby the container K on the elevator only is raised, the counter
balance U not being heavy enough to lift the socket Q, as well as the container K;
as soon however as this latter one is being raised by the chain, the counter
balance U again brings the socket Q and the receiver S into normal position in
which the receiver S gathers the cream led to it through a tube from the
centrifugal.
The inclination of the receiver S while emptying itself into the container K
not being greater than the first mentioned receiver S may continue to receive the
.cream from the centrifugal.
The apparatus requires very little power, works quietly and evenly; the chain
wheels with the chain, the links of which being of metal and continually moving
in the same direction guarantee against anything becoming disarranged. All the
vessels S, K, P, are placed outside the line of sheaves, chain wheels, chain &c. so
that neither superfluous grease nor other particles from the parts in motion will be
able to fall into the said vessels and dirtying the cream.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The herein before described cream elevator for use in dairies to the transport
of the cream from the centrifugal to the pasteurizing apparatus characterized
through a pillar A with a loose and a fast sheave B, B, mounted above, a chain
wheel C fastened to the axle of the latter and which moves a chain D round it and
two other chain wheels E, F, one of these (F) placed above in the same level as C,
the other one (E) being placed below on the pillar A, the chain having a rod G
with a slot V, the other end being connected movably with a container K on the
elevator through an arm J coming from a movable guide H which glides on a
guiding rod I parallel with the pillar A; the container K thus following the upward
or downward motion and kept in the right position by means of an arm L on the
container K with a guide M running on another guiding rod N which is bent
above in such a curve that the container on the elevator when the last mentioned
guide M during the upward motion of the container K enters upon the curve is
made to incline in such a way that its contents may be poured into a reservoir P
belonging to the pasteurizing apparatus, whereafter the elevator container is again
brought down and refilled from a receiver S placed below the centrifugal, as set
forth.
2. The arrangement on the cream elevator characterized under 1 that a sliding
socket is placed on the lower part of the guiding rod I and which by means of
the chain R is movably connected with the receiver S placed underneath the
centrifugal, this receiver being turnable upon an axle T and thus being brought to
an inclination so that its contents can be run into the container K on the elevator
while the socket Q is forced down by the guide H during the last mentioned

page_text: container's downward motion, and the receiver by the subsequent upward motion
being brought back to its normal position by the counter balance U, all as
herein before described.
Dated this 19th 1 of 1904
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Thomas Thomassen Sabroe.