A NEW OR IMPROVED APPARATUS FOR WARMING THE FEET
Year: 1872

page_text: LETTERS PATENT to James Stone, of Drayton, in the County of
Somerset, Gentleman, for the Invention of "A NEW OR IMPROVED
APPARATUS FOR WARMING THE FEET."
Sealed the 12th November 1872, and dated the 30th August 1872.
PROVISIONAL SPECIFICATION left by the said James Stone at the
Office of the Commissioners of Patents, with his Petition, on the
30th August 1872.
I, JAMES STONE, of Drayton, in the County of Somerset, Gentleman,
do hereby declare the nature of the said Invention for "A NEW OB
IMPROVED APPARATUS FOR WARMING THE FEET," to be as follows:-
This Invention relates to a new or improved apparatus for warming
the feet, which consists mainly of two suitably shaped vessels placed one
within the other (the outer one of which may be of wood and the inner one
of metal, and both may be covered if required by wood or other suitable
material) having the space between them filled with two layers, the
outer one of any suitable non-conducter of heat and the inner one (by
preference) of the non-conducting or imperfectly conducting material or
combination of materials (the glass however a component part thereof,

page_text: by preference, being employed as a silicate) described in the Specifica-
tion of the Invention for which Letters Patent were granted to Bristow
Hunt, on the 6th day of October, A.D. 1871, No. 2652, the same having
been a communication to the said Bristow Hunt from myself whilst I
was resident in Ceylon.
The improved apparatus when in constant use requires to be filled
with hot water only once in about twenty to twenty-four hours, during
which time it retains an almost constant and comfortable degree of heat,
the water being contained by the inner vessel, and surrounded by the non-
conducting material. Or, as a modification, and instead of using liquid,
as the heating medium, and especially where the apparatus is to be
employed in railway carriages I fill the apparatus with the material or
materials above referred to (by preference in a powdered state), as
described in the above-mentioned Specification, and with them I mix
pieces of iron or iron turnings, and heat them in an iron pot or cauldron,
and pour them into the inner vessel when required for use.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Stone in the Great Seal Patent Office
on the 27th February 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
STONE, of Drayton, in the County of Somerset, Gentleman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirtieth day of August, in the year
of our Lord One thousand eight hundred and seventy-two, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said James Stone, Her special licence that I,
the said James Stone, my executors, administrators, and assigns, or
such others as I, the said James Stone, my executors, administrators,
and assigns, should at any time agree with, and no others, from time to
time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "A NEW OR IMPROVED APPARATUS FOR WARMING
THE FEET," upon the condition (amongst others) that I, the said James

page_text: Stone, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed in
the Great Seal Patent Office within six calendar months next and im-
mediately after the date of the said Letters Patent.
· NOW KNOW YE, that I, the said James Stone, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement in writing, and on reference being had to the
accompanying Drawings, that is to say :—
This Invention relates to new or improved apparatus for warming
the feet, some modifications of the construction of which are illustrated
in Figures 1 to 4 on the accompanying Drawings.
Figures 1 and 2 represent a sectional side elevation and plan view:
respectively of the apparatus constructed of a square form; and
Figures 3 and 4 an end and side sectional elevation respectively of the
apparatus constructed of an elliptical form.
The apparatus consists mainly of two suitably shaped vessels, a, b,
placed one within the other, having a space between them filled with
two layers c, d, the outer one c of any suitable non-conductor of heat,
and the inner one d (by preference) of the non-conducting or
imperfectly conducting material or combination of materials (the glass
however a component part thereof, by preference being employed as a
silicate) described in the Specification of the Invention for which Letters
Patent were granted to Bristow Hunt on the 6th day of October, A.D.
1871, No. 2652, the same having been a communication to the said
Bristow Hunt from myself whilst resident in Ceylon.
The vessel or box 6 may be made of thin metal, and the vessel a
of wood or stout metal, surrounded by a covering of felt or carpeting e,
or other suitable material.
When in use the apparatus requires to be filled with hot water only
once in about twenty to twenty-four hours, during which time it retains
an almost constant and comfortable degree of heat, the water being
contained by the vessel 6 (surrounded by the non-conducting materials

page_text: c, d,) and poured thereinto through a supply pipe fprovided with a
screw cap g.
When using water as the heating medium I prefer to saturate it
with starch or any salt which would not act injuriously on the metal,
such as common washing soda or chloride of calcium, so as to obtain a
greater heat by raising the boiling point of the water.
In a second modification instead of using liquid as the heating
medium, and especially where the apparatus is to be employed in railway
carriages, which it helps to warm, I fill the vessel b with the materials
or combination thereof, above referred to, by preference in a powdered
state, mixing with them pieces of iron or iron turnings, or I fill it with
well washed sand or gravel (previously heating them or it in an iron
pot or cauldron), by which means a considerable heat is retained by the
apparatus for a lengthened period.
Having now described the nature and object of my said Invention for
"A New or Improved Apparatus for Warming the Feet," together with
the manner in which the same is to be or may be performed or carried
into practical effect, I would remark, in conclusion, that I claim as my
Invention, the improved apparatus for warming the feet (and the
means of retaining or arresting the escape of heat) constructed sub-
stantially as above described and as illustrated on the accompanying
Drawings, or any mere modification thereof.
In witness whereof, I, the said James Stone, have hereunto set
my hand and seal, this Twenty-fourth day of February, in the
year of our Lord One thousand eight hundred and seventy-three. 2
Witness,
BRISTOW HUNT,
Solicitor and Patent Agent,
5, Serle Street,
Lincoln's Inn.
JAMES STONE. (L.S.)