Year: 1887

page_text: I, DAVID THOMAS WINTER, of Peabody, Massachusetts, United States of America,
Inventor and 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 :-
My invention consists in certain new and useful improvements in egg beaters, and I
do hereby declare that the following is a full, clear and exact description of the same,
reference being had to the accompanying drawings making part of the same, in
which
Figure 1 represents in elevation an egg beater embodying my invention.
Figure 2 is a side view of the same.
Figure 3 a slight variation, and
Figure 4 a modification of the frame as made with legs instead of with a clamp.
Upon one side of a frame or support A, is mounted a large gear wheel B, having a
suitable handle C, for driving the same, and on the other side of the frame is a small
gear D, which engages with and is driven by the gear B.
A bend m is made in the frame to permit the arrangement of these gears. As these
gears engage with each other and the dasher a beater is on the side of the frame
opposite the driving handle C, and is driven by a pin, as presently stated, on the upper
small gear D, these gears had to be on opposite sides of the frame so that the dasher
rod and handle shall not interfere with each other. The bend m, is so shaped, as
shown, that although the gears are mounted on opposite sides of the frame, yet they
are in the same plane and their peripheral teeth engage each other. On this small
gear D, I either cast or secure a crank-pin or arbor E, set eccentrically or near the
circumference of the gear and to this pin or arbor is hung by an eye f, the plunger
rod G, of the coiled dasher or beater wire H, and this rod G, as shown, projects and plays
up and down and swings through a regulating eye or opening in a guide piece I, which
is either made integral with the frame, or preferably in a removable and adjustable
piece which may be secured in any one of a series of holes i¹, (see figure 3), and the
opening in this piece I, should be large enough to offer no obstruction to therise and fall
of the rod and its attached horizontally coiled dasher. The arbor E may also be a
set screw, and made adjustable by screwing or otherwise inserting it in any one of the
.
17

page_text: series of holes e¹ on wheel D. This vibratory dasher H, consists of a single stiff wire
coil, preferably coiled substantially or nearly in a plane, and at right angles to the rod G,
and having its outer end free, and not attached to any other rod or device; it is made of
the same piece of wire which constitutes the rod, G, and when in place for action it lies
nearly or substantially in a horizontal plane, and in its motions has no fixed guiding
rod of any sort, but has its movements imparted and controlled only by the agency of
its rising and falling and laterally swinging rod G, and this rod is actuated only by
the pin E, and controlled and guided only by the piece I, which thus becomes a bearing
guide and serves as a changeable fulcrum point for the rod; the rod being in fact a
lever, the power being at pin E, the dasher H, representing the weight and the sides of
hole I being the fulcrum or bearing point, but which by means of the rise and fall,
and of the side play of the rod, bears always (when the dasher is moved) upon a different
part of the rod; so that the operative length of the arms of the rod in action are
constantly changing.
The effect of this action is that there is no mere vertical reciprocation of the dasher H
in right lines only and there is no mere vibratory action; but whilst it always remains
in substantially a horizontal position, yet it describes a path nearly circular, or
approximately egg-shaped, inasmuch as the arc described by it when at the lowest point
will be that of a somewhat larger circle than when at its highest point, because of the
varying leverage of the lower arm. In other words, although the pin E describes a
true circle, the lifting and lowering of the dasher H, while it is being revolved in a
vertical plane, varies its path from a true circle to the extent due to its up and down
motion and to its slight side play in the bearing afforded by the hole in the guide piece I.
It will be observed that I dispense with all springs, guide rods or adjuncts for the
coiled dasher.
The part GH, I prefer to make from a piece of 16 gauge hard wire (springy)
and bend its lower end into 3 or 4 horizontal coils of say about half an inch apart.
A thicker and, more rigid wire may be used, and work well; but I find that by
having it a little springy, the part G, gets a vibratory action due to this springiness
which materially enhances the action of beating.
The coil may be of oval or other shape than a true spiral; nor need the coils be all
on the same plane; or cach coil may be irregular. The adjustment of the regulating
eye I, to different heights, adapts the apparatus for beating either large or small
quantities at will, by increasing or diminishing the side sweep of the coil or dasher.
The coil is lifted bodily through the egg for half of its circular path, and is plunged
down and back with the same kind of motion through the other half of its path, but
upon the opposite side of the vessel containing the egg; thus acting on all the egg;
the horizontal form of the coil also prevents any portion of it being inoperative when
in action, by being lifted out of the egg.
The adjustment of the crank pin E, also allows of a greater or less movement of
throw of the beater, and I prefer to make it with a large head having milled edges,
removable like a thumb-screw. Then with a regulator I, Figs. 1 and 2, cast on the
frame, and having a diagonal saw cut, k, made in it, the dasher rod can be removed by
unscrewing the thumb-screw and shifting the rod until it can be pulled out through
the cut k. Instead of a cast eye an enclosed spiral one of wire may be used. (See
Fig. 3).
Evidently, like many other beaters, this one may be used for beating other articles.
It may if desired, be made with legs (see Fig. 4), but I prefer to clamp it to a table or
ledge, by a screw or clamp l. This beater has a great simplicity in construction,
with unusual efficiency in action, and does the work with great despatch and
thoroughness.
I make no claim to gears for operating egg beaters, as these are old.
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. An egg beater frame supporting two toothed gears BD, engaging directly

page_text: with each other, the driven gear carrying the beater and being journaled on one side
or face of the frame, and the driving gear being journaled on the opposite side of the
frame, substantially as set forth.
2. In an egg beater, the toothed gear D, combined with and operating a vibratory
beater whose upper end is adjustably attached to such gear to regulate its extent of
throw, and with a guiding eye on the frame through which the lower free vibrating end
of the beater works.
3. In an egg beater in which the beater describes a vertical path substantially circular,
the described means for removing the beater or dasher from its frame or support,
consisting of the removable crank pin E on the driven gear, and the open eye fulcrum
guide pin on the frame and through which the dasher rod vibrates and slides when in
action.
4. An egg beater frame supporting two toothed gears B D, engaging each other, in
combination with the vibrating beater, adjustably attached to one of the gears to regulate
its extent of throw, and with a guiding eye on the frame through which the lower free
end of the beater works, the beater having a coil H, at its extremity.
5. I claim in an egg beater, in combination with the driving gears BD, a wire beater
terminating at its lower end in a horizontal coil, and its other end driven in a circular
path by a pin on one of the gears, and an intermediate guide eye or hole through which
the wire has a lengthwise and also a lateral play, substantially as shown and described.
6. An egg beater dasher made of a single wire terminating in a horizontal coil at
its lower end to form a stand on which it may rest when in a cup or bowl.
Dated this 95th dox of October 1887
G. F. REDFERN & Co.,
4, South Street, Finsbury, E.C.,
Agents for the Applicant.