Improvements in and Apparatus for the Production of Clear Ice.
Year: 1892

page_text: Date of Application, 10th Nov., 1892
Complete Specification Left, 8th Aug., 1893—Accepted, 9th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in and Apparatus for the Production of Clear Ice.
I, EVERARD HESKETH of 23 St. Swithins Lane, in the City of London,
Engineer, do hereby declare the nature of my invention to be as follows :-
It is known that in order to produce clear ice from ordinary water it is necessary
to agitate, or give motion to, the water during the freezing so as to release air and
thus prevent the formation of bubbles in the ice.
Various means have been employed to agitate, or give motion to the water but
none of these have been free from objection.
It is the object of my invention to provide simple, and efficient, means to
accomplish the desired object. According to my invention the receptacles or
cans "in which the water to be frozen is contained have an oscillating movement
given to them in such a way as to cause the water to flow backwards and forwards
in the cans during the freezing. This is conveniently effected by providing each
can with a division or partition which extends to or above, the level of the water in
the can but does not extend to the bottom thereof. The exteriors of the cans are
provided with trunnions upon which they can be oscillatel, or with equivalent.
supports or rests which can be alternately raised and lowered so that an oscillating
motion is given to the cans and the water flows through the lower opening past the
division or partition alternately from one side to the other thereof.
Dated the 10th day of November 1892.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in and Apparatus for the Production of Clear Ice.
I, EVERARD HESKETH of 23 St. Swithins Lane in the City of London
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:―
It is known that in order to produce clear ice from ordinary water it is necessary
to agitate, or give motion to the water during the freezing so as to release air and
thus prevent the formation of bubbles in the ice.
66
Various means have been employed to agitate, or give motion to, the water but
none of these have been free from objection. It is the object of my invention to
provide simple, and efficient, means to accomplish the desired object. According to
my invention the receptacles or cans in which the water to be frozen is contained,
have an oscillating movement given to them in such a way as to cause the water to
flow backwards and forwards in the cans during the freezing. This is conveniently
effected by providing each can with a division or partition which extends to, or
above, the level of the water in the can but does not extend to the bottom thereof.
The division or partition should of course be removeable to allow of the ice being
removed from the cans. The cans are suspended or supported by trunnions or
otherwise so that they can be oscillated, or alternately raised and lowered so
that an oscillating motion is given to them and to the water in them the said water
where the division or partition is used as aforesaid flowing through the lower
opening past the division or partition alternately from one side to the other side
thereof.

page_text: The accompaniyng drawing represents an arrangement according to my invention,
Figures 1 and 2 being vertical sections at right angles to each other and Figure 3
being a plan.
A are the cans which contain the water to be frozen and B is the vessel in which
the brine or refrigerating medium is contained. The cans A are provided with
removeable partitions a extending from the top to near the bottom but leaving a
space beneath them at a. C are frames in which the cans A are supported by
projections as on the cans resting on the said frames. The frames are provided at
each end with trunnions c supported on bearers b inside the vessel B. Affixed to
each frame is an arın or lever D connected by a rod d. E is a pulley or wheel on
the shaft e driven by any suitable means and having secured to it a crank disc e*
to the pin e' of which is connected one end of a rod f the other end being connected
to one of the arms D. When the crank disc e³ is rotated oscillatory movements are
given to the frames (and consequently to the cams) through the rods f and d and
arms D and the water in the cans is caused to pass alternately in one and the other
direction through the space a². The dotted lines in Fig. 2 illustrate the movements
aforesaid. The cans may of course be provided with trunnions and be oscillated
directly if desired.
It will be understood that there may be any desired number of cans and of frames
carrying cans where frames are employed.
I do not limit myself to the precise means shewn for effecting the movement of
the cans nor do I limit myself to the use of the divisions or partitions as cans with-
out such divisions or partitions may if desired be oscillated as described.
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. In the production of clear ice the oscillation of the receptacles or cans contain-
ing the water to be frozen so as to cause the said water to flow backwards and
forwards in the said receptacles or cans during freezing substantiallly as herein-
before described.
2. In apparatus for producing clear ice means for suspending or mounting the
receptacles or cans for containing the water to be frozen so that they can be
oscillated in combination with means for giving an oscillatory movement thereto
substantially as herein before described.
3. In apparatus for producing clear ice receptacles or cans for containing the
water to be frozen provided with a division or partition leaving a passage for water
from one side to the other, means for suspending or mounting the said receptacles
or cans and means for giving oscillatory motion thereto substantially as herein-
before described.
4. The arrangement and combination of parts constituting the apparatus for the
manufacture of clear ice substantiallly as hereinbefore described and illustrated in
the accompanying drawings.
Tinted this Oth dow of Ancert 1802