Year: 1886

page_text: Date of Application, 11th June, 1886.
Complete Left, 11th Mar., 1887
Complete Accepted, 15th Apr., 1887.
I, PETER JENSEN Fel. Inst. P.A. of 77, Chancery Lane in the County of Middlesex
Patent Agent do hereby declare the nature of this invention to be as follows :-
According to this invention eggs are boiled by placing them in a vessel with double
walls having the intermediate spaces filled with silicate cotton or other suitable non-
conductor of heat, the vessel being then charged with boiling water and closed with a
well fitting cover which may also, if desired, be made with double walls having the
intermediate space filled with silicate cotton, or other suitable non-conductor of heat.
The heat is in this manner so well applied and retained that the eggs are boiled in
about ten minutes and while retained in the water in the vessel keep soft and warm
for about an hour. For convenience the eggs are, by preference, placed in a frame or
stand, something like a cruet stand in which they may also be removed when required
for use.
This invention is of special advantage in hotels, large households, on board steamers,
in restaurants, hospitals and the like where eggs now often are allowed to become cool,
hard, unpalatable or useless by the least carelessness or from other causes. The
whole apparatus may be brought up on to the breakfast or tea table and the eggs
removed for use as required in a fit condition to be eaten. The eggs thus cooked have
a delicate flavour.
By this invention much annoyance, waste, expense and loss of time are avoided.

page_text: COMPLETE SPECIFICATION.
A Mode of and Apparatus for Boiling Eggs.
I, PETER JENSEN Fel. Inst. P.A. of 77 Chancery Lane in the County of Middlesex
Patent Agent do hereby declare the nature of this invention (a communication from
abroad by Daniel George Martens of Laxvåg near Bergen in the Kingdom of Norway
Shipbuilder) and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
According to this invention eggs are boiled by placing them in a vessel with double
walls having the intermediate spaces filled with sawdust, ashes or other suitable
non-conductor of heat, the vessel being then charged with boiling water and closed
with a well-fitting cover which may also if desired be made with double walls having
the intermediate space filled with sawdust ashes or other suitable non-conductor
of heat.
The heat is in this manner so well applied and retained that the eggs are boiled
in about ten minutes and while retained in the water in the closed vessel keep soft and
warm for about an hour. For convenience the eggs are by preference placed in a
frame or stand something like a cruet stand in which they may also be removed when
required for use.
In Figure 1 of the accompanying drawings is shewn in vertical section an apparatus
suitable for carrying the invention into effect and intended for boiling 4, 5 or 6 eggs,
but the form of it may be altered in many ways without departing from the invention
or materially affecting the efficiency of the apparatus care being however taken that
the quantity of water necessary for boiling the eggs (the eggs being about just covered
with water) be somewhat in proportion to that here shown, so that for instance an
apparatus whether intended for boiling 3 or 6 or 9 or 12 eggs should be proportioned
somewhat in accordance with the number of eggs in each case. Figure 2 is a plan
view to a smaller scale of the stand for holding the eggs.
The apparatus consists of a bowl with outer walls A and inner walls B, the inter-
mediate space being filled with sawdust, ashes or other suitable non-conductor of heat.
C is a frame (shown in plan Figure 2) in which the eggs are placed and containing for
instance as here shown 6 eggs (or any other desired number according to the size and
contents of the bowl).
The frame C containing the eggs is placed in the bowl. Boiling hot water is then
poured in until it reaches the dotted level line so that the eggs are just about covered.
The closely fitting lid D is then put on. The heat is in this manner kept in so well
that in about 10 minutes the eggs are evenly soft boiled, and they will never be hard
boiled even if left in for hours. The eggs will keep warm for about an hour in the
closed bowl. The lid D may also be made with double walls filled with non-conducting
material but this is not generally found necessary.
This invention is of special advantage in hotels, large households, on board steamers,
in restaurants, hospitals and the like where eggs now often are allowed to become cool,
hard, unpalatable or useless by the least carelessness or from other causes. The

page_text: whole apparatus may be brought up on to the breakfast table or tea table, and the eggs,
in a fit condition to be eaten, removed for use as required. The eggs thus cooked have
a delicate flavour.
By this invention much annoyance waste expense and loss of time are avoided.
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 as the
the invention communicated to me is.
First. A process for boiling eggs consisting in placing the eggs in a suitably sized
vessel having double walls filled with non-conducting material, pouring boiling water
into the vessel so as to cover the eggs, and closing the vessel with a well-fitting lid,
whereby the eggs may be properly boiled and kept warm for a convenient space of
time substantially as set forth.
Second. The construction of egg boiler shown and described.
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