Improvements in Hand, Foot, and Plate Warmers, and other similar Heating Apparatus.
Year: 1890

page_text: Date of Application, 17th Dec., 1890
Complete Specification Left, 24th Mar., 1891 Accepted, 13th June, 1891
Improvements in Hand, Foot, and Plate Warmers, and other similar
Heating Apparatus.
I NICOLAS ALPHONSE AUBERTIN of 27 Chancery Lane in the County of
Middlesex Chemist, do hereby declare the nature of this invention to be as
follows
My invention relates to improvements in hand and foot-warmers, plate-warmers,
-bed-warmers, and other heating or warming apparatus. In carrying my invention
into practice I provide a case or receptacle of any suitable metal, or material,
and of any convenient size and shape. In the top of this case or receptacle, or
in any other convenient position therein, there is an orifice through which hot water
or other fluid, or heated solid substance intended to be kept warm is passed into
such case or receptacle.
The orifice may be hermetically closed with a suitable cap and threaded screw or
any other convenient means. This case or receptacle is enclosed in another case,
or receptacle of suitable metal or material and of any convenient size and shape,
and furnished with a convenient lid or cover. The last mentioned or outer case is
considerably larger than the inner case so as to admit of an interspace between the
outside of the inner case and the inside of the outer case. The inner case is placed
within the outer case in such a position that, the said interspace will be of considerable
breadth around three sides and marrow around the fourth side of the inner case.
The interspace is packed with any material which is a non-conductor of heat and
will exclude cold.
The top of the inner case is covered with the like material, and the lid or cover
of the outer case is tightly closed. The advantages of foot, hand, plate or bed
warmers, or any other warming apparatus constructed as herein mentioned are that,
an equable temperature is maintained for a much longer time than can be secured
by ordinary foot warmers, accidents are avoided when live charcoal is used as the
heating medium, and disagreeable odours are prevented.
Dated this 17th day of December 1801
NICOLAS ALPHONSE AUBERTIN.
COMPLETE SPECIFICATION.
Improvements in Hand, Foot, and Plate Warmers, and other similar
Heating Apparatus.
I NICOLAS ALPHONSE AUBERTIN of 27 Chancery Lane in the County of
Middlesex Chemist 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 :-
My invention relates to improvements in hand and foot warmers, plate-warmers,
bed-warmers, and other heating or warming apparatus.
In carrying my invention into practice I provide a case or receptacle of any
suitable metal, or material, and of any convenient size and shape.
In the top of this case or receptacle, or in any other convenient position therein,
there is an orifice through which hot water or other fluid, or heated solid substance
intended to be kept warm is passed into such case or receptacle. The orifice may
be hermetically closed with a suitable cap and threaded screw, or any other convenient
means. This case or receptacle is enclosed in another case or receptacle of suitable
metal or material, and of any convenient size and shape and furnished with a
Din T

page_text: The
convenient lid or cover. The last mentioned or outer case is considerably larger
than the inner case so as to admit of an interspace between the outside of the inner
case and the inside of the outer case. The inner case is placed within the outer
case in such a position that the said interspace will be of considerable breadth
around five of the sides and narrow around the sixth side of the inner case.
interspace is packed with any material which is a non-conductor of heat, and will
exclude cold. The top of the inner case is covered with the like material, and the
lid or cover of the outer case is tightly closed. The advantages of foot, hand, plate
or bed warmers or any other warming apparatus constructed as herein mentioned
are that an equable temperature is maintained for a much longer time than can be
secured by ordinary foot-warmers, accidents from suffocation are avoided when live
charcoal is used as the heating medium, and disagreeable odours are prevented.
Having now fully described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. The construction of warmers in the manner herein before particularly described,
whereby an interspace for the reception of a non-conducting material or substance
is formed around the inner case substantially as and for the purposes herein
specified.
2. The application of a non-conducting material or substance to such parts of
warmers as are not required to radiate heat, thus preventing waste of heat, and
localizing the radiation.
Dated this 23rd day of March 1891.
NICOLAS ALPHONSE AUBERTIN.