IMPROVEMENTS IN CALORIC SAFES AND NON- CONDUCTING JACKETS FOR HEATED VESSELS, STEAM PIPES, AND OTHER ARTICLES
Year: 1880

page_text: LETTERS PATENT to Benjamin Joseph Barnard Mills, of the Firm of Harris
and Mills, of 23, Southampton Buildings, in the County of Middlesex, Patent
Agent, for an Invention of "IMPROVEMENTS IN CALORIC SAFES AND NON-
CONDUCTING JACKETS FOR HEATED VESSELS, STEAM PIPES, AND OTHER
ARTICLES." A communication from abroad by John Mullauphy Harney,
Gentleman, of St. Louis, in the State of Missouri, in the United States of
America.
PROVISIONAL SPECIFICATION left by the said Benjamin Joseph Barnard
Mills at the Office of the Commissioners of Patents on the 30th April 1880.
BENJAMIN JOSEPH BARNARD MILLS, of the Firm of Harris and Mills, of
23, Southampton Buildings, in the County of Middlesex, Patent Agent.
"IMPROVEMENTS IN CALORIC SAFES AND NON-CONDUCTING JACKETS FOR HEATED
VESSELS, STEAM PIPES, AND OTHER ARTICLES." A communication from abroad
by John Mullauphy Harney, Gentleman, of St. Louis, in the State of Missouri, in
the United States of America.
The object of this Invention is to retain the heat in vessels and their contents
after having been once heated to the desired temperature, for cooking and other
purposes.
The Invention consists of an outer case, preferably of wood lined with paper or
felt, all of which encloses a thick packing of feather-stuffed cushions in the midst
of which is an opening just sufficient to receive the vessel that it is desired to keep
hot.
The box or case is provided with a hinged lid or cover on top held down by a
suitable clasp to an india rubber gasket or packing which is let into the upper edge
of the box and serves to hermetically seal the safe.
The lid as well as the sides is lined with the paper and packing of feathers, which
011 ...מ

page_text: when the lid is closed press down snugly on to the top of the contained vessel so as
to effectually prevent all circulation of air.
By means of this device vessels having once been heated up to a cooking
temperature may be set aside in the safe and the cooking finished without further
expense of heat or room.
The Invention is not confined to the use of packing for cooking purposes, as it
may be used with equal advantage as a steam pipe jacket, and in other places
where a non-conductor of heat is desirable; neither is it confined to any particular
form or size of the different parts, as the outside casing may be done away with
and pasteboard, paper-felt, or tarred paper be used instead of the sheots of
paper.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Benjamin Joseph Barnard Mills in the Great Seal Patent Office
on the 28th October 1880.
BENJAMIN JOSEPH BARNARD MILLS, of the Firm of Harris and Mills, of
23, Southampton Buildings, in the County of Middlesex, Patent Agent.
"IMPROVEMENTS IN CALORIC SAFES AND NON-CONDUCTING JACKETS FOR HEATED
VESSELS, STEAM PIPES, AND OTHER ARTICLES." A communication from abroad
by John Mullauphy Harney, Gentleman, of St. Louis, in the State of Missouri, in
the United States of America.
The object of this Invention is to retain the heat in vessels and their contents,
after having been once heated to the desired temperature for cooking and other
purposes.
The Invention consists of an outer case, preferably of wood lined with paper
or felt, all of which encloses a thick packing of feather stuffed cushions, in the
midst of which is an opening just sufficient to receive the vessel that it is desired
to keep hot.
The box or case is provided with a hinged lid or cover on top held down by a
suitable clasp to an india rubber gasket or packing which is let into the upper edge
of the box, and serves to hermetically seal the safe.
The lid as well as the sides is lined with the paper and packing of feathers,
which when the lid is closed press down snugly on to the top of the contained
vessel so as to effectually prevent all circulation of air.
By means of this device vessels having once been heated up to a cooking
temperaturo may be set aside in the safe, and the cooking finished without further
expense of heat or room.
The Invention is not confined to the use of packing for cooking purposes, as it
may be used with equal advantage as a steam pipe jacket, and in other places
where a non-conductor of heat is desirable; neither is it confined to any particular
form or size of the different parts, as the outside casing may be done away with
and paste-board, paper-felt, or tarred paper be used instead of the sheets of
paper.
And in order that the said Invention may be more clearly understood, and
readily carried into effect, I will proceed, aided by the accompanying Drawings,
more fully to deserike the soma
Figure 1 is a section at a, a, showing the enclosed vessel in clevation.
Figure 2 is a section at b, b.
A is the case. This is shown as made of wood with a wooden lid B tightly
fitted to its top and connected by hinges C at one edge. D is a hasp or catch
holding the lid firmly down on the box; E is a rib of rubber let into the top of
the box as shown, extending all around so as to hermetically close the joint between
the lid and the box. The sealing rib or ring E may be inserted in the lid instead
of the box, and bear upon the latter.
The walls and lid of the box are covered upon the inside with a packing or
lining F of paper, or felt-paper, or asbestos so as to prevent the passage of air
inward or outward, and also to act as a non-conductor of heat.
The inside of the box is covered at the sides and bottom with feather-stuffed
cushions; the side-cushions being shown at G, and the bottom cushion at H. I is a
detached cushion stuffed with feathers like the others G, H, and made to fit snugly

page_text: over the vessel K, and to fit tightly against the upper edges of the side cushions G,
so as to prevent the convectivo escape of heat.
The cushions may be made from four to twelve inches in thickness from the sides
of the case inward.
In using the apparatus the vessel K containing water or other liquid at a boiling
temperature is placed in the position shown, and covered with the cushion I. The
lid B is then closed, and the liquid in the vessel K will be found to remain at a
nearly equal temperature for hours, so that the process of cooking will continue
without any addition of heat.
Having thus described the nature of the said Invention, and the mode in which
the same is carried into effect, I would have it understood that what I claim is,―
First. The combination of box or case A with tightly fitting cover B, lining F,
and cushions G, H, I, substantially as and for the purpose set forth.
Second. The packing composed of feathers surrounded by a jacket of paper or
similar material, substantially as and for the purpose set forth.
In witness whereof, I, the said Benjamin Joseph Barnard Mills, have hereunto
set my hand and scal, this Twenty eighth day of October, in the year of
our Lord One thousand eight hundred and eighty.