A NEW OR IMPROVED KIND OF WATERPROOF AND ANTI- RADIATING TEXTILE-FELT-FABRIC
Year: 1872

page_text: LETTERS PATENT to William Edward Gedge, of No. 11, Wellington
Street, Strand, in the County of Middlesex, Patent Agent, for the
Invention of "A NEW OR IMPROVED KIND OF WATERPROOF AND ANTI-
RADIATING TEXTILE-FELT-FABRIC," a communication from abroad by
Charles Gaudefroy, Fils, of Nos. 7 and 9, Rue St. Joseph, Paris,
France, Merchant.
Scaled the 30th May 1873, and dated the 7th December 1872.
PROVISIONAL SPECIFICATION left by the said William Edward Gedge
at the Office of the Commissioners of Patents, with his Petition,
on the 7th December 1872.
I, WILLIAM EDWARD GEDGE, of No. 11, Wellington Street, Strand,
in the County of Middlesex, Patent Agent, do hereby declare the nature
of the said Invention for "A NEW OR IMPROVED KIND OF WATERPROOF AND
ANTI-BADIATING TEXTILE-FELT-FABRIC," a communication to me from
abroad by, Charles Gaudefroy, Fils, of Nos. 7 and 9, Rue St. Joseph,
Paris, France, Merchant, to be as follows:-
:-
This Invention relates to the manufacture of a novel fabric for covering
steam generators or conduits and other apparatuses to protect them from

page_text: contact of the atmospheric air, and prevent radiation of heat therefrom.
This textile-felt-fabric is composed of a layer or lap of flock or animal
hair, more or less thick, and of a coarse fabric woven from flax or hemp
yarn, and waterproofed by any suitable process either before or after its
union with the flock. The union of the two parts of the textile-felt-
fabric is effected by quilting or stitching; the fabric is made in bands
of any width, and the lap of flock or hair is not spread over the whole
breadth of the woven fabric, but leaves on one side and in its entire
length a strip of woven fabric from one to two inches wide, upon which
there is no flock, so that when a band of this material is wound upon
a pipe the two edges of flock come together, but the strip of woven
fabric free from flock overlaps this junction and thus forms a perfectly
tight joint preventing the radiation of heat or penetration of water to
which this point of union would otherwise be exposed,
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Edward Gedge in the Great Scal Patent
Office on the 6th June 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
EDWARD GEDGE, of No. 11, Wellington Street, Strand, in the County of
Middlesex, Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventh day of December, 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 William Edward Gedge, Her special licence
that I, the said William Edward Gedge, my executors, administrators, and
assigns, or such others as I, the said William Edward Gedge, 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 KIND OF WATERPROOF AND ANTI-RADIATING TEXTILE-FELT-FABRIC," a
communication to me from abroad by Charles Gaudefroy, Fils, of Nos. 7
and 9, Rue St. Joseph, Paris, France, Merchant, upon the condition
.

page_text: (amongst others) that I, the said William Edward Gedge, 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 immediately after the date
of the said Letters Patent.
NOW KNOW YE, that I, the said William Edward Gedge, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement :—
This fabric has for object to abstract as much as possible steam, air,
or gas generating or conducting apparatuses, and any other apparatuses
to which the fabric may be found applicable from the effects of the
ambient air, that is to say, to protect them from cold, heat, or humidity.
This textile-felt-fabric is composed of a layer or lap more or less thick
of flock or of animal hair, and of a woven fabric of the same nature, or
preferably, more particularly when it is desired to preserve from humidity,
of a coarse fabric woven from hemp or flax, yarn, or other equally
suitable material, rendered waterproof by any suitable process, either
before or after its union with the layer or lap of flock. The two parts
of this textile-felt-fabric are made to adhere to each other by a quilting
or stitching with stitches more or less apart, or by glueing or even by a
simple pressure.
In order to obtain a perfect covering of the apparatuses which are to
be protected from the effects of the ambient air or surrounding atmos-
phere there is reserved on one of the sides of the lap or layer of flock
in the manufacture of the textile-felt-fabric an excess or overplus of the
woven part either waterproofed or not, so that in winding bands of this
textile-felt-fabric on cylinders or other apparatuses the overplus of the
woven part overlaps on that part of the band which has no overplus of
woven material, and covers the junction of the two parts brought
together so as to leave no issue to the radiation of the caloric, and to
completely prevent infiltration of humidity.
This textile-felt-fabric is made in bands or strips of any length, and
various means may be employed to obtain the excess or overplus of the
woven part over the layer or lap of flock, but that which is preferred

page_text: consists in making in the woven part folds of a breadth equal to the
thickness of the layer of flock at distances more or less apart, according
to the breadth which it is desired to give to the bands or strips. The
layer or lap of flock is laid on the side of the woven fabric opposite the
folds, and is made to adhere thereto, the textile-felt-fabric is then cut at
equal distances from the folds, and in the middle of the folds whereby
bands or strips of textile-felt-fabric are obtained, one of the sides or
edges of which carries an overplus of woven fabric which is to cover the
junction of the bands. There may also be placed in the middle of the
lap or layer of flock a core or partition formed of blades or laths of wood,
solid or openworked, joined the one to the other, their dimensions
varying with the particular application to be made. This core or par-
tition may also be replaced by a layer of fine wooden shavings, of straw,
hay, furze, or heath, dried leaves, moss, seaweed, or other vegetable
waste or filaments, all low priced materials and bad conductors of
heat.
In witness whereof, I, the said William Edward Gedge have here-
unto set my hand and seal, this Sixth day of June, in the year
of our Lord One thousand eight hundred and seventy-three.