Egg Boiler.
Year: 1891

page_text: Date of Application, 10th Mar., 1891-Accepted, 18th Apr., 1891
COMPLETE SPECIFICATION.
Egg Boiler.
We, GEORGE LIVERMORE DALE, of 571, Warren Street, Newark, in the
County of Essex and State of New Jersey, U.S.A., Fire Insurance President, and
GEORGE THOMAS HATT, of 573, Warren Street, Newark, in said County of
Essex, State of New Jersey, U.S.A., Manufacturer, do hereby declare the nature
of our invention for EGG BOILERS, 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 egg boilers, the main object of the invention being
to provide for the immersion of any desired number of eggs for a predetermined
length of time; and this object we accomplish by providing the egg-receiving vessel,
which is formed with a discharge opening, with a combined closing and flow
regulating valve, all as will be hereinafter more fully described and specifically
pointed out in the claims.
Reference is to be had to the accompanying drawings, forming a part of this
Specification, in which similar reference letters indicate corresponding parts in all
the views.
Figure 1 is a side view of our improved automatic egg boiler, parts being broken
away and a portion of the bottom of the boiler being shown in section.
Figure 2 is a side view of the egg receptacle or caster.
Figure 3 is a detail sectional view, and upon an enlarged scale, of a modified form
of valve.
Figure 4 is a sectional plan view, taken on line 44 of Figure 2.
Figure 5 is a central sectional elevation of a modified form of caster; and
Figure 6 is an enlarged sectional detail view of a portion of the caster shown in
Figure 5.
In the drawings, 10 represents the main vessel or boiler, which by preference is
in the form of a cylindrical pail. To this vessel there is secured a base, 11,
preferably in the form of the frustum of a cone, a series of apertures, 2, being
formed through the body of the base, as appears in Figure 1. Instead of the
base, 11, any other proper base, as, for instance, three or more legs, could be
employed. To the bottom, 12, of the vessel, 10, I secure a ring, 13, the central
opening of said ring registering with an aperture, 3, that is formed in the
bottom, 12. The ring, 13, constitutes a seat for a valve, 14, which is made integral
with or rigidly connected to a stem, 15, said stem extending upward through the
bore of the ring 13 and the aperture 3, and increasing in diameter from the point, 4,
upward, but the diameter of the stem does not at any point exceed the diameter of
the opening, 3. To the upper end of the stem there is secured a plate, 16, which
serves as an abutment for a spring, 20, the lower end of said spring bearing upon
the bottom, 12, whereby the valve, 14, is normally held to its seat.
In Figure 2 we illustrate an egg receptacle or caster made up of a central
stem or standard, 17, and two or more egg-receiving trays, 18. The standard
or stem, 17, terminates in a flattened knob or projection, 19, adapted to rest upon
the plate 16.
In operation, the vessel 10 is filled to overflowing with water which has been
raised to a temperature of, say, 200 to 212 degrees Fahr., and then the caster
shown in Figure 2 is placed within the vessel, the desired number of eggs having
been first adjusted to position upon the trays. The spring, 20, is adjusted so that
a single egg will depress the valve only to such an extent as to bring that section
of the stem, 15, which is of least diameter within the aperture 3 and the bore of
the ring 13, and consequently the water contained within the vessel will be quickly

page_text: discharged. If, however, a large number of eggs, say, ten or twelve, are placed
upon the caster, more water will be displaced from the vessel, 10, when the caster
is adjusted to place within the vessel, and, consequently, it is desirable that the
flow of water from the vessel be decreased in volume; and it is to this end that we
have formed the stem, 15. tapering, as above set forth; for the increased weight
will act with greater effect upon the spring, 20, and the larger portion of the
stem 15 will pass down into the aperture 3 and the bore of the ring, 13, and
consequently the water will not be so quickly discharged.
Another point is, that the introduction of a large number of eggs will cause the
absorption of a greater number of heat units, and consequently the eggs should be
subjected for a greater length of time to the action of the heated water; and in
practice we have found it desirable to so proportion the stem, 15, that the flow will
be such as will leave the greater number of eggs in the water a longer time than
the lesser number.
By providing a caster with three tiers of egg receptacles we arrange for the
delivery of three grades of eggs at a single operation; that is to say, the eggs of
the upper tray will be soft, those carried by the middle tray medium and those of
the lower tray hard. But in certain instances it might be desirable to have all
of the eggs cooked to a slightly greater extent or not cooked quite so much as
they would be cooked if no adjustment of the spring 20 was provided for. To
secure the desired adjustment of the spring, we could thread the upper end of the
stem, 15, as shown at 5 in Figure 3, such threaded end fitting into a corresponding
threaded socket, 6, formed in a projection that extends downward from the plate 16,
and then by turning the plate we are able to increase or diminish the tension of the
spring, as will be readily understood.
It might sometimes happen that families would desire changes in the relative
cooking of their eggs; that is to say, those using the medium eggs might wish to
have them cooked a little more or a little less, as also with those using the hard
and the soft boiled eggs; and to provide for this change in the relative cooking of
the eggs, we employ such a caster as is illustrated in Figures 5 and 6, wherein the
stem, 17, is represented as being divided into sections, a, b and c, that are adjustably
connected, the section a being connected to the section b, the section b to the
section c, and the section c to the base, 30, each of the sections being formed with
an annular shoulder, d, which rests upon the upper face of the adjacent egg-rack,
and with a threaded projection, e, which engages a clamping nut, f, arranged to be
turned hard against the under face of the egg-rack. The sections b and c are
formed with threaded sockets, g, that are entered and engaged by the projections, e,
of the sections a and b respectively, while the projection e of the section c enters
and engages the thread of a socket g¹ formed in the base, 30.
up
Although not positively essential, we prefer to form the nuts, f, with downwardly-
extending sleeves, i, that overlap the socketed section-ends, as this construction
imparts a finish to the caster and also serves to strengthen it.
From the above description it will be seen that any one of the racks, 18, may
be raised or lowered, and also that, if desired, all of the racks may be raised or
lowered.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. In an egg boiler, the combination with a vessel, formed with a discharge
aperture, of a combined closing and flow regulating valve and a spring, arranged in
connection with such valve, substantially as described.
2. In an egg boiler, the combination with a vessel, formed with a discharge
aperture, of a valve adapted to close said aperture, and formed with a stem which
constitutes a regulating valve and acts to control the flow from said aperture, and
a valve spring, substantially as described.
3. In an egg boiler, the combination with a vessel, formed with an apertured

page_text: bottom, of a valve, arranged to close said aperture, a regulating valve, consisting
of a stem, of gradually increasing diameter, connected to the closing valve, which
said regulating valve acts to control the flow from said aperture, and a spring,
arranged in connection with the valves, substantially as described.
4. In an egg boiler, the combination with a vessel, formed with an apertured
bottom, of a valve, arranged to close said aperture, and provided with a tapering
stem which constitutes a How-regulating valve, a spring, arranged about said stem,
and a plate, adjustably connected to the stem, substantially as described.
5. In an egg boiler, the combination with a vessel, formed with an apertured
bottom, of a spring-actuated valve, arranged to close said aperture and extend
below the vessel bottom, and a base, which extends below the valve and serves as a
support for the vessel, substantially as described.
6. In an egg boiler, the combination with a vessel, formed with an apertured
bottom, of a spring-actuated valve, arranged to close said aperture and extend
below the vessel bottom, and a base, which extends below the valve and serves as a
support for the vessel, said base being formed with a number of apertures,
substantially as described.
7. A caster consisting essentially of two or more egg-receiving racks and an
adjustable sectional stem, substantially as described.
8. A. caster consisting essentially of two or more adjustably mounted egg receiving
racks, substantially as shown and described.
9. In an egg-receiving caster, the combination with a base of a stem, adjustably
connected thereto, racks, carried by the stem, and a means for adjusting the stem
between the racks, substantially as described.
10. An egg boiler substantially as herein shown and described.
Dated thiɑ 10th day of March 1891
lith day of March 1891
S. S. BROMHEAD,
97, Newgate Street, London, E.C., Agent for Applicants.
S. S. BROMHEAD,
97, Newgate Street, London, E.C., Agent for Applicants.