Improvements in Devices for Beating Eggs, Cream, or Material for Cakes.
Year: 1899

page_text: Date of Application, 22nd Aug., 1899-Accepted, 23rd Dec., 1899
COMPLETE SPECIFICATION.
Improvements in Devices for Beating Eggs, Cream, or Material
for Cakes.
I, THOMAS HOLT, of 142, Main Street, Tarrytown, in the County of Westchester
and State of New York, United States of America, Merchant, 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:
-
My invention is in the nature of a device for beating eggs, cream or material
for cakes, which is designed to accomplish its results more quickly and effectively
and without leaving any unbeaten residuum in the bottom of the vessel.
The invention is an improvement upon that form of beater in which two rotat-
ing beater bows are arranged side by side on different axes eccentric to each other
and in rotating work one into the other and it consists in the peculiar construction
and arrangement of parts, which I will now proceed to more fully describe
reference being had to the accompanying drawings, in which
Figure 1 is a side elevation of the device;
Figure is an enlarged end view of the handle partly in section;
Figure 2 is an enlarged top view;
Figure is a section through line 3-3 of Figure 1, and
Figure is a section through line 33";
Figures 4, 5, 6 and 7 are details, and
Figures 8, 9 and 10 are side views showing modifications of the rotating
beaters;
Figure 1 is a front elevation of a further modified form of the device;
Figure 12 is a side elevation of the device as shown in Figure 11:
Figure 13 is an enlarged vertical section of the head of the device shown in
Figure 11, illustrating the manner in which the stationary portion of the beater
is attached to the said head, the section being taken on the line 13-13 of
Figure 12 and
Figure 14 is a horizontal section on the line 14-14 of Figure 13.
In the drawing A A are two rotating dashers or beater bows, arranged side by
side on independent axes B B eccentric to each other and formed by a single
stout bent wire. The beaters have at their upper ends two intermeshing gear
wheels a which are turned in an opposite direction by a crown wheel C through
a crank handle 1). This general form of beater is, as so far described, already
in use.
I will now proceed to describe the novel features of my invention. The
beaters A have each a circular portion a', and a shank portion a², which in this
instance are stamped out of a flat piece of sheet metal in a single piece. The
lower circular portion of the beater is stamped with an offsetting lug which is
perforated to receive one of the axial rods B, and the upper ends of the shanks
are rigidly fastened to the two small gear wheels which being perforated and
closing the axial rods form the upper bearings for the rotating beaters. The
circular portion a¹ of the beater has its opposite sides bent so as to stand neither
radial to the centre of rotation nor vet at right angles to the radius, but at an

page_text: angle between these two positions, as shown in Figure 3, in which the plane of the
blade from the bottom to the top of the bow crosses the circumferential path
indicated in dotted lines, with its outer edge in advance or leading. The
purpose of this is to cause the inclined blades to gather the material and throw
it in to the centre. The upper portion of the beater shank a² is stamped to a
curved form in cross section, as seen in Figure 3. The object of this is twofold,
first, to give by its hollow or corrugated form a longitudinal stiffness, and
secondly, to cause the shank portion in rotating about its axial rod to pass edge-
wise through the material with the least possible resistance, and this it does
by being curved transversely to the arc of a circle described about the axial rod.
E is the handle of the beater. This is made from a flat bar of metal bent in
the middle into an elliptical bow, and having its two ends extended downwardly
and connected rigidly to the axial rods B B, as hereinafter described. The
elliptical loop portion of the handle is specially constructed to give a firm grasp
in the palm of the hand, and for this purpose the metal of the bar is split longi-
tudinally, see Figure 1, and then spread apart to form two bows e e, which are
then connected together on top by a broad flat plate e which is stamped of sheet
metal and applied to the two bows e e by means of clips or flanges e bent
around the boys and tightly pressed thereupon so as to form a firm and rigid
connection. This holds the bows to their proper spread, and gives a broad bearing
for the hand for holding the beater steadily when turning the crank.
The lower part of the two branches of the handle and the upper ends of the
axial rods B B are rigidly connected together, and for the purpose I form a metal
block F, see Figure 4, with a hole through it and with seats f¹ in which the upper
ends of the rods B B, which are curved to correspond, are clamped between the
block and the lower ends of the handle bars by means of a bolt or rivet f. This
when tightened up firmly clamps the handle, and the axial rods together, so that
they can not become loose or detached. To further fix the block in place against
turning on the bolt a half round seat f³ (or a perforation) is formed in the
upper end of the block, which receives a second bolt f that forms the axis of the
large gear wheel.
In Figure 8 I show a modification of the beater bows. These are made from a
straight strip of material, and have two shanks connecting with each driving
wheel. This I regard as the most simple and practical form of making the bows.
For connecting them to the gears, the latter are formed with square hubs m,
Figures 5 to 8, with little indentations m in which fit the inturned ends m²
of the upper ends of the beater shanks, and a square ferrule or thimble m³ pressed
upwardly over the ends of the shanks secures them rigidly to the gears. This
same connection may be employed with the single shanks shown in Figure 1, but
I do not confine my invention to this special form of connection, as the shanks
and the gears may be connected together in various simple and practical ways.
In Figure 9 is shown another modification of the beater bows. This differs
from that shown in Figure 8 in the following particulars:-
In Figure 8 the angular position of the bow from bottom to top is the same and
is arranged to gather the material and throw it inwardly. In Figure 9, the blade
of the bow is given a spiral twist which causes the lower half of the bow to gather
the material and throw it inwardly, while the upper part by a reverse inclination
throws it outwardly or vice versa. In Figure 10 a further modification is shown.
in which three blades to each beater instead of two are employed.
"
In defining my invention with greater clearness, I would state that I am aware
that it is not new to have two bowed beaters rotating on separate axial rods in
close proximity to each other, the blade of one bow being so timed as to pass in
its rotation between the blades of the other how by means of gearing substantially
the same as shown by me, and I do not claim this broadly. On the other hand,
I am aware that an egg beater has been provided with a blade whose plane
occupies an inclined position to the radial line, and I do not claim this broadly.
My invention consists, so far as this feature is concerned, in combing these two
old features to produce an entirely new result by coordinated action. Where

page_text: a beater rotating about a single central axis has its blades inclined to the radial,
its rotation soon causes the entire contents of the vessel to start in a whirling
action, which from centrifugal action naturally causes the liquid to trend away
from the beater and keep out of its reach and which stops all beating action.
On the other hand, when there are two bowed beaters on independent axes, or
axes eccentric to each other, but with blades that are not inclined to the radial,
there is an active commotion inside the range of the beaters, but there is no draw-
ing of the material inwardly toward the centre, but on the other hand, centrifugal
action will still assert itself, and keep a certain amount of the material in the
outer zone that is unbeaten, and which will be found in the bottom of the vessel
when the beater is removed. With my invention the two beaters preclude the
continuous whirling and centrifugal action which a central set of inclined blades
will produce, and at the same time it will continually draw every particle of the
outlying zone of material into the centre where complete agitation exists, so that
practically every particle of material in the vessel will be converted into a frothy
mass without any unbeaten liquid residuum.
Under the construction shown in Figures 11 and 12 the circular portions a¹
of the rotating dashers or beater bows A are provided with longitudinal slots o,
in order that they may more freely pass through the material to be beaten,
and more quickly and effectually produce a more thorough admixture of the
elements to be beaten together. Furthermore, the bows or lower portions of the
axial rods B are provided. with curved or crescent shaped blades p, (Figure 12"),
facing in the same direction but flaring outwardly in opposite directions as shown
in horizontal section on an enlarged scale in Figure 12, and proved with
longitudinal slots . The slotted blades serve further to create agitation as
the device is operated, and the general arrangement of the circular portions of
the dashers or beater bows and the blades on the axial rods, enable a perfect
result to be obtained much more quickly than with beaters of the ordinary con-
struction.
The axial rods B are secured to a head R, and this head block carries an up-
wardly extending hanger R¹ terminating in a loop or hand-hold R. The head
block R is provided at opposite sides with a horizontal recess r, forming upper and
lower lugs, and these lugs are apertured to receive the upper ends of the axial
rods B. The rear wall of each recess is provided with an inwardly curved
extension, into which members of the axial rods B are kinked or curved as
shown at in Figures 13 and 14, and under this construction it is obvious
that the axial rods are firmly held to the head block in a simple and in an
economic manner.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is:
1. A beater consisting of two rotating bows arranged on independent axes,
side by side, and eccentric to each other and having the blades of these bows set
at an inclination to the radial line.
2. A beater consisting of rotating bows formed of slotted blades.
3. The fixed blades arranged in connection with the axis around which the bows
rotate.
Dated this day of August 1995.
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.