Improvements in Pans or Vessels for Boiling Fruits and other Preparations Containing Acids.
Year: 1892

page_text: Date of Application, 25th Oct., 1892
Complete Specification Left, 10th Feb, 1893-Accepted, 18th Mar., 1893
PROVISIONAL SPECIFICATION.
Improvements in Pans or Vessels for Boiling Fruits and other
Preparations Containing Acids.
I HENRY FAULDER of Lancashire Bridge Stockport in the County of
Lancaster, Fruit Preserver, do hereby declare the nature of this invention to be
as follows:-
This invention relates to the construction of pans or vessels suitable for boiling
fruits for preserving and other purposes, also vinegar for pickling and other
preparations of an acid nature or containing acids, especially such as are intended
for food.
The objects of this invention are to construct or manufucture a pan or boiling
vessel for such purposes, the lower part of which or that exposed to the action of
the heat shall possess conducting properties of a high degree whilst the upper
portion thereof shall be of a highly inoxydizable or anticorrosive nature so as not
in any way to have any injurious effect upon the fruit, vinegar, or other acid
article or preparation which is to be boiled therein, not to be deleteriously affected
by the combined action of the acid and the atmosphere.
For the purposes of my invention I make the pan or lower part of the vessel
which is exposed to the direct action of the heat of copper, preferably thickly
coated or plated upon the inside with silver, and to the upper edge of this
connect (preferably by flanges bolted or rivetted together) a curb made of pure
aluminium which metal I find is least subject of any metal to corrosive action or
oxydation by the heated acid juices of the fruit or by vinegar or other preparations
of an acid nature and does not cause any deleterious or injurious action whatever
on the fruit or other article of an acid nature which may be boiled in it and which
may be intended for food at the same time that the pure aluminium itself not
being so suitable for direct contact with the heat as copper, is not so applicable
for making the lower part of the pan or vessel which is exposed to the direct heat
of the steam or fire (and is required to impart the maximum amount thereof to
the fruit, vinegar, or other article being boiled therein).
If preferred I may insert a layer of asbestos or other suitable non-conducting
material to insulate the two parts of the pan to avoid electrical contact.
My invention therefore consists in making a pan or boiling vessel for such
purposes of the two metals silver plated copper and aluminium combined substan-
tially in the manner above described.
Dated this 24th day of October 1892.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Pans or Vessels for Boiling Fruits and other
Preparations Containing Acids.
I HENRY FAULDER of Lancashire Bridge Stockport in the County of Lancaster,
Fruit Preserver, 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 relates to the construction of pans or vessels suitable for boiling
fruits for preserving and other purposes, also vinegar for pickling and other

page_text: preparations of an acid nature or containing acids, especially such as are intended
for food.
The objects of this invention are to construct or manufacture a pan or boiling
vessel for such purposes, the lower part of which, or that exposed to the action of
the heat, shall possess conducting properties of a high degree whilst the upper
portion thereof shall be of a highly inoxydizable or anticorrosive nature so as not
in any way to have any injurious effect upon the fruit, vinegar, or other acid article
or preparation which is to be boiled therein, nor to be deleteriously affected by the
combined action of the acid and the atmosphere.
For the purposes of my invention I make the pan in two parts or sections the
lower part or half of the vessel which is exposed to the direct action of the heat
being of copper, preferably thickly coated or plated upon the inside with silver;
aluminium or other non corrosive metal and to the upper edge of this I connect
(preferably by flanges bolted or rivetted together) a curb made of pure aluminium
which metal I find is least subject of any metal to corrosive action or oxydation by
the heated acid juices of the fruit or by vinegar or other preparations of an acid
nature and does not cause any deleterious or injurious action whatever on the fruit
or other article of an acid nature which may be boiled in it and which may be
intended for food; at the same time that the pure aluminium itself not being so
suitable for direct contact with the heat as copper, is not so applicable for making
the lower part of the pan or vessel which is exposed to the direct heat of the steam
or fire (and is required to impart the maximum amount thereof to the fruit, vinegar,
or other article being boiled therein).
Or I may make the bottom section of the pan itself also of a non corrosive metal
such as aluminium and coat this over on the outside by an electro-deposit of
copper sufficiently thick to strengthen or stiffen the pan to resist the direct action
of either steam or fire used for heating the contents of the pan.
If preferred I may insert a layer of asbestos or other suitable non-conducting
material to insulate the two parts of the pan to avoid electrical contact.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed 1 declare that what
I claim is :-
A pan or boiling vessel for such purposes made in two parts or sections the upper
one of pure aluminium, and the lower one of two metals namely copper outside
and aluminium or other non corrosive metal inside combined substantially in the
manner herein before described.
Dated this 9th day of February 1893
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.