Beater, Mixer, or Agitator for Eggs, Custards, and other Liquid or Semi Liquid Substances.
Year: 1897

page_text: Date of Application, 12th June, 1897
Complete Specification Left, 11th Mar., 1898-Accepted, 4th June, 1898
PROVISIONAL SPECIFICATION.
Beater, Mixer, or Agitator for Eggs, Custards, and other Liquid or
Semi Liquid Substances.
I, CHARLES EBENEZER CHALLIS, of 47, Wray Crescent, Tollington Park, London,
N., Machinist, do hereby declare the nature of this invention to be as follows:-
The essential features of my invention are the mixing and aeration of the
substance operated upon by causing it to be forced backwards and forwards
through a series of holes by alternately compressing and rarefying (or releasing)
a cushion of air above it. In a simple form the beater is constructed with a
chamber or tube having a series of holes around its lower end, and a diaphragm
or cup of rubber at its upper end. Upon the tube being inserted in the substance
to be mixed and the cup being depressed the air contained in it is compressed
and the substance is forced through the holes, the pressure then being removed
the return of the rubber to its former shape causes the substance to be forced
back through the holes, pressure being again applied the substance is forced out
and so on until the whole of the mass has become separated and aerated by
rapidly passing through the holes and being meanwhile subjected to air under a
certain amount of compression. Instead of the simple cup or diaphragm of
rubber attached to the top of the tube or chamber. I may use a tube or bulb of
rubber which is alternately crushed and released: or a small piston or plunger
fitting the tube, is alternately raised and depressed (but not into the substance)
or the compression chamber may be separate and the air be led into the beater
chamber by a tube or otherwise; or the beater chamber may be double, with a
perforated plate or equivalent between the connected portions the air being
compressed and rarefied in one or both portions of the beating chamber alternately.
Dated this Twelfth day of June 1897.
Beater, Mixer, or Agitator for Eggs, Custards, and other Liquid or
Semi Liquid Substances.
I, CHARLES EBENEZER CHALLIS, of 47, Wray Crescent, Tollington Park, London,
N., Machinist, 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:-
The essential features of my invention are the mixing and aeration of the
substance operated upon by causing it to be forced backwards and forwards

page_text: through a series of holes by alternately compressing and rarefying or releasing,
a cushion of air above it.
In a simple form the beater is constructed with a chamber or tube having a
series of holes around. its lower end, and a diaphragm or cup of rubber at its
upper end. Upon the tube being inserted in the substance to be mixed and the
cup being depressed the air contained in it is compressed and this forces the sub-
stance through the holes, the pressure then being removed the return of the
rubber to its former shape causes the substance to be drawn back through the
holes, pressure being again applied the substance is forced out and so on until
the whole of the mass has become separated and aerated by rapidly passing through
the holes and being meanwhile subjected to air under a certain amount of com-
pression.
Instead of the simple cup or diaphragm of rubber attached to the top of the
tube or chamber, I may use a tube or bulb of rubber which is alternately crushed
and released; or a piston or plunger, fitting the tube, is alternately raised and
depressed or the compression chamber may be separate and the air be led into the
beater chamber by a tube or otherwise, or the beater chamber may be double with
a perforated plate, or equivalent, between the connected portions, the air being
compressed and rarefied in one or both portions of the beating chamber alter.
nately.
In the accompanying drawings Figs. 1 and 2 show the device as applied to an
egg beater A being the tube; B, the holes; C the gallery in which the inverted
rubber cup is fitted; D is the rubber cup; E is a glass in which the beater
is inserted.
Fig. 3 shows the device as applied to mixing puddings &c. A being the tube;
B the holes; F, the plunger; G the rod connected thereto; H is the vessel
in which the article is placed.
Fig. 4 shows the device for beating or agitating the water in a vessel used for
washing and boiling. A being the tube; B the holes; F, the plunger; G the
rod connected thereto; J is an arm supporting the lever K.-For larger vessels
gearing may be substituted for the lever.
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) The process of beating, mixing or agitating by means of the rise and fall
or compression and rarefication of a column of air or gas in a chamber forcing
the substance to be mixed through a series of holes.
(2) A chamber perforated with holes at one end and a rubber cup fitted at the
other end for the purpose of mixing beating or agitating, substantially as set forth
and described.
(3) A chamber perforated with holes at one end and a piston or plunger fitted.
at the other end, operated by means of a lever, gearing, or otherwise, substantially
as set forth, and described.
(4) A mixer beater or agitator constructed with a chamber (separate or attached)
for alternately compressing and rarefying air which is used to force the substance
to be mixed backwards and forwards through a series of holes, substantially as
set forth and described.