Year: 1894

page_text: Date of Application, 28th Feb. 1894-Accepted, 31st Mar., 1894
Communicated by PETER AUGUST HINNISH HÖPPNER and JOHANN MARTIN
LUDWIG HADDORF, both of Lübeck, in the Empire of Germany.
I, WILLIAM PHILLIPS THOMPSON F.C.S. M.I.M.E. of The Agency for
Foreign Patent Solicitors 6, Lord Street, Liverpool and 6, Bank Street
Manchester, both in the County of Lancaster and 323 High Holborn in the
County of Middlesex Civil Engineer 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 :-
This invention has for its object improvements in pots or pans, which will render
it possible to close such pots or pans almost hermetically, and at the same time,
allow the lid to be easily put on and taken off.
This is shown on the accompanying drawing a
Figure 1 being a cross section through the pot or pan when the lid is closed:
Figure 2, a cross section through the same with the lid partly open and
Figure 3, a top view of the lid.
The pot or pan, a, of the usual form, is bent over at the upper edge, and has
further a gutter or annular receptacle for receiving the drops formed by the
condensation of the water. The lid e consists of two halves e c', which are held
compressed together by means of a suitable spring s. At its circumference, the lid
is curved or bent round to correspond with the upper projecting edge of the pan, or
pot, so that the edge of the lid fits tight round that of the pan or pot. One half of
the lid c overlaps the other half c', and thoroughly covers over the interstice formed
by the two halves of the lid. In the overlapping portion of the lid, guide pins are
situated which engage with slots in the other half lid.
The spring, which holds the two halves of the lid together, is preferably a spiral
one, and is surrounded by pieces of tube, telescopically adjustable one in the other,
in order as far as possible to avoid its becoming rusted, and at the same time to
prevent corners for dirt being formed in the interior of the lid.
If it be desired to fix the lid on the pot or pan, it is only necessary to engage one
half over the upper edge of the pot or pan, see Figure 2, and then to extend or
draw out the other half of the lid, and, when so extended, to press it down on the
pot. If the hold on the half lid be then released, both halves of the lid will be
drawn together by the spring, and thus a tight closing of the pot or pan will be
brought about.
The drops of condensed water which are formed are collected by the gutter or
annular receptacle b, and so prevented from falling from the lid on to the fire-plate,
or into the fire.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondents, I declare that what I claim is :-
1. The improvements in pots or pans consisting in the lid being divided into two
halves overlapping each other and held together by means of a spring, which, when
expanded, allows of the lid passing over or engaging the projecting edge of the pan
or pot, and whereby the two halves are pressed together when the spring is released,
thus tightly enclosing the upper edge of the pan or pot, substantially as described
and shown on the accompanying drawing.

page_text: 2. In pots or pans such as described in Claim 1, the arrangement of a gutter or
annular receptacle round the bent-over or projecting upper edge of the pot or pau,
whereby the drops of condensed water, which are formed on the lid, are caught and
prevented from dropping on to the fire plate or into the fire, substantially as
described.
Dated this 27th day of February 1894.
WM. P. THOMPSON & Co.,
Agents.