Year: 1895

page_text: Date of Application, 3rd July, 1895
Complete Specification Left, 24th Mar., 1896-Accepted, 20th June, 1896
THOMAS GADDES, M.D., Dental Surgeon, 104, Station Parade, Harrogate,
Yorks, do hereby declare the nature of this invention to be as follows:-
The apparatus consists of a pan or vessel to contain water.
:-
Within the pan there is a receptacle for one or more than one egg; connected
with which is a receiver in which water is held.
The receiver has a valve, or the valve may not be adopted.
The receiver has a drainage hole through which the contained water percolates.
The egg receptacle & receiver are poised on a lever, on the opposite arm of
which is a counterweight.
The fulcrum of the lever, is fixed to the pan.
The
The mode of working the apparatus is as follows:-A given quantity of water
is placed in the pan; an egg is placed in the receptacle, which, along with the
receiver, is immersed in the water, thereby filling the receiver with water.
receiver is now adjusted upon the lever, the counterweight having already been
placed where desired, according to time of cooking & size of egg. When the
water contained in the receiver has percolated through the drainage hole, the
counterweight overbalances the combined weight of the receiver, the receptacle
& its contents, & the egg is thus lifted out of the water in the pan.
Dated this 2nd day of July 1895.
THOMAS GADDES.
THOMAS GADDES, M.D. 104, Station Parade, Harrogate, Yorkshire, Dentist,
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 apparatus consists of a cylindrical pan, to which is fixed a fulcrum arm
a lever. To one end of the lever, which extends to a point a little beyond the
centre of the pan, is attached a second vessel or receiver; & on the other &
longer arm of the lever is placed a counterweight. Connected with the lever &
its fulcrum is a regulator to arrange the period of time during which the egg may
be boiled. Beneath the receiver there is united to it a receptacle of gauze or
perforated metal, in which an egg may be placed. The receiver & receptacle are
smaller in diameter than is the pan, so that they can be contained within its area;
& in their movement, due to the motion of the lever, not unduly come in contact
with the side of the pan. A handle is fixed to the pan at a convenient place.
Fig. 1 shows a vertical sectional view, with the receptacle in the pan, & the
regulator arranged for boiling an egg
"soft."
Fig. 2 shows the receptacle removed from the water, the counter-weight having
slid to the extremity of the sliding bar of the lever.
Fig. 3 is a vertical section of the fingers of the fulcrum arm & of the parts
between them.

page_text: Fig. 4 18 an elevation & a section of the sleeve.
Fig. 5 is a vertical section of the regulator.
Fig. 6 is an elevation of the connecting bar.
Figs. 1 & 2 are about half size; & Figs. 3, 4, 5 & 6 are full sized drawings.
I shall now describe in detail the several parts in conjunction with the
accompanying drawings:
Fig. 1-a is the pan, 4 in. deep & not less than 4 in. in diameter. b is a groove
1 in. from the bottom, to indicate the level of the water required. c is the fulcrum
arm, riveted to side of pan, the pin g being 54 in. from the groove b. The
lever d, d¹, d, is of the shape shown; & the hooked end d should reach beyond
the point perpendicular to the centre of the pan when the lever is at right angle
with that vertical line, & the regulator h at the median position M Fig. 4. The
arched portion of the lever d¹ is to accommodate the receiver o when raised out of
the pan, as shown in Fig. 2. The deflected part of the lever du is at an angle of 10°.
Attached to and parallel with this is a bent wire sliding bar n, on which hangs the
counter-weight w. e is a sleeve of sheet brass which embraces the lever d, & is
continued in two vertical wings el Figs. 1, 3, 4, 5. The boss f, which fits snugly
between the fingers k of the fulcrum arm c Fig. 3, passes through the wings of
the sleeve e, to one of which it is soldered, but free of the other wing. Through
this boss f, & tightly through the fingers k of the fulcrum arm, the pin g passes &
forms the fixed axis of the sleeve e, of the movable lever d, & of the connecting
bar j.
To regulate or vary the time that the receptacles shall remain in the water of
the pan a, the lever d is moved through the sleeve e so as to increase or decrease
the distance between the hook of the lever d and the axis g.. This is accomplished
by the regulator h Fig. 5. The longer limb of the regulator serves as a handle,
the shorter limb h¹ need only extend as high as the wings of the sleeve. Fig. 5
gives a sectional view of the parts. Between the pin i & the boss f, Figs. 1 & 5,
is the connecting bar j, also seen in elevation in Fig. 6, which is placed between
the wings el of the sleeve. The pin i passes tightly through both limbs h h¹ of the
regulator, through large slots in the wings e¹, & through the connecting bar j.
Also upon this pin i are the loose collets 1, filling up the space between the
limbs & the wings el of the sleeve. The pin m passes through the lower
part of the limbs of the regulator, & also tightly through the lever d. Thus
the boss with the pin 9 serve as a point of resistance for the connecting bar j; the
pin is a movable centre for the smaller end of the bar j; & the pin m conveys
the travelling motion to the lever d along the sleeve e.
The receiver o is 3'in. in diameter & 24in. deep. By the wire eyep it is suspended
on the hooked extremity of the lever d. In the bottom & near the circumference
of the receiver o is the drainage hole g. This is about 1 in. in diameter. By
means of three wire supports there is fixed to the under surface of the bottom
of the receiver o the receptacle s. This is made of wire or perforated metal, is
about 2 in. in diameter, & dished to the depth of inch. The receptacle s is
about 2 in. from the bottom of the receiver o, thus making the total height of the
receptacle and receiver 5 inches. From near the inner margin of the drainage
hole q to the outside of the receptacles runs a guttered support t. This is a
piece of thin sheet metal grooved longitudinally, & serves to convey the water
which percolates from the receiver o clear of the egg in the receptacles.
When two eggs have to be dealt with at the same time the capacity of the
receptacles bas to be'increased accordingly, & with that an increase in the diameter
of the pan a.
The deflected portion of the lever d" has to be lengthened, & a
second sliding barn attached, this being placed about in. farther from the
fulcrum than is the first sliding bar, thus giving additional power to the weight w
so as to counterpoise the two eggs.
An apparatus constructed for boiling two eggs will equally well boil one egg.
All that is necessary is to place the counter-weight on the first or on the second
sliding bar according as one egg or two eggs respectively may be required.

page_text: The mode of working the apparatus is as follows:-Water is placed in the pan a
till it reaches the level of the groove b. An egg is put into the receptacle s..
The weight being on the sliding barn, water is poured into the receiver o until it
overflows, & the receptacles is then immersed in the boiling water of the pan a,.
this water being kept boiling during the time of cooking. As it may be desired
to cook the egg " hard," " Boft," or << medium," so the handle of the regulator is.
adjusted to the letter H, S, or M.
The water in the receiver runs out by the hole, & when it has so far diminished.
in quantity as to no longer overbalance the counter-weight, the latter gains. the
plus on its side of the fulcrum, & the weight slides to the extremity of the bar
& raises the receptacle & egg out of the water.
Having now particularly described & ascertained the nature of my said inven-
tion, & in what manner the same is to be performed, I declare that what I
claim is:
1. The combination of a pan, a receiver & receptacle, of the form & arrangement.
& for the purpose described & shown herein.
2. In combination with the invention claimed in Claim 1, an arrangement or
regulator for altering the relative distance of the two ends of a lever from the
fulcrum, in the manner as described & shown herein.
3. The combination of a pan, a receiver & receptacle, a lever & regulator, in
conjunction with a sliding bar & weight, in the manner & for the purpose-
described & shown herein.
Dated this Twenty-third day of March 1896.