IMPROVEMENTS IN THE MANUFACTURE OF LEATHER CLOTH FLOORCLOTH AND OFFTET E RADIO
Year: 1874

page_text: LETTERS PATENT to Thomas Thomson, of Glasgow, in the County of
Lanark, North Britain, for the Invention of "IMPROVEMENTS IN THE
MANUFACTURE OF LEATHER CLOTH FLOORCLOTH AND OFFTET E RADIO!!
Scaled the 16th February 1875, and dated the 24th November 1874.
PROVISIONAL SPECIFICATION left by the said Thomas Thomson at the
Office of the Commissioners of Patents, with his Petition, on the
24th November 1874.
I, THOMAS THOMSON, of Glasgow, in the County of Lanark, North
Britain, do hereby declare the nature of the said Invention for “Im.
PROVEMENTS IN THE MANUFACTURE OF LEATHER CLOTH, FLOORCLOTH, AND SIMILAR
FABRICS," to be as follows, that is to say:
This Invention, which relates to improvements in the manufacture of
leather cloth, floorcloth, and similar fabrics, is a development of the
Invention described in the said Thomas Thomson's Provisional Specifi-
cation, and for which Letters Patent have been granted to the said
Thomas Thomson, No. 2251, A.D. 1874.

page_text: According to the aforesaid Invention atmospheric air is blown into the
materials described in the said Thomas Thomson's aforesaid Provisional
Specification for producing leather cloth and similar fabrics.
be
From experiments made since the date of the aforesaid Letters Patent
it has been discovered that in place of blowing in the air the air may
caused to act upon the substances used in the manufacture of leather
cloth, floorcloth, and similar fabrics by the use of a mechanical agitator
or stirrer, or other known means, the movement of the agitator or stirror
having the effect of driving in and commingling the air with the afore-
said substances; or the air may be caused to act thereon by mechanical
agitation and blowing used in combination.
The object of this Invention is to facilitate the manufacture of the
aforesaid fabrics by shortening the time occupied in curing or ripening
them, and it consists further in the application or employment of blast
or atmospheric air or mechanical agitation to those substances or com-
pounds used in the manufacture of the aforesaid fabrics, which consist of
hydrocarbons, gelatinous, and oleaginous substances, having colouring
materials mixed therewith. The effect of blowing in the air or agitating
the said substances is to oxidise the oxidisable oils, to expel moisture
from the compound, and to more intimately mix the ingredients
together.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Thomson in the Great Seal Patent Office
on the 22nd May 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS 2
THOMSON, of Glasgow, in the County of Lanark, North Britain, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent bearing date the Twenty-fourth day of November, in the year of
our Lord One thousand eight hundred and seventy-four, in the 38th 30
year of Her reign, did, for Herself, Her heirs, and successors, give
and grant unto me, the said Thomas Thomson, Her special license
that I, the said Thomas Thomson, my executors, administrators, and
assigns, or such others as I, the said Thomas Thomson, my executors,

page_text: administrators, or 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, usc, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
THE MANUFACTURE OF LEATHER CLOTH, FLOORCLOTH, AND SIMILAR FABRICS,"
upon the condition (amongst others) that I, the said Thomas Thomson,
by an instrument in writing under my hand and seal, should par-
ticularly 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 Thomas Thomson, do hereby declare
the nature of my said Invention, and in what manner the same is to
bc performed, to be particularly described and ascertained in and by
the following statement, that is to say :—
My said Invention, which relates to improvements in the manufacture
of leather cloth, floorcloth, and similar fabrics, is a developement of the
Invention described in the Specification filed in pursuance of Letters
Patent which have been granted to me, the said Thomas Thomson, dated
A.D. 1874, No. 2251.
According to the aforesaid Invention atmospheric air is blown into the
materials described in the aforesaid Specification for producing leather
cloth and similar fabrics, and which materials consist of glue, water,
rape or other non-drying oils, glycerine, and boiled linseed oil, with the
addition thereto of such colouring matters as are necessary to produce
the colour of imitation leather desired.
From experiments made since the date of the aforesaid Letters Patent
it has been discovered that in place of blowing in the air, the air may be
caused to act upon the said substances used in the manufacture of
leather cloth, floorcloth, and similar fabrics, by the use of an ordinary
mechanical agitator or stirrer, the movement of the agitator or stirrer
having the effect of driving in and commingling the air with the afore-
said substances; or the air may be caused to act on the substances by
mechanical agitation and blowing used in combination.
The object of this Invention is to facilitate the manufacture of the
aforesaid fabrics by shortening the time occupied in curing or ripening

page_text: them; and it consists further in the application or employment of blast
or atmospheric air or mechanical agitation or stirring to those substances
or compounds used in the manufacture of the aforesaid fabrics, which
consist of gelatinous and oleaginous substances, having copel or other
elastic varnishes for their base, and with which colouring materials are
mixed. The effect of blowing in the air or agitating the said substances
is to oxidise the oxidisable oils, to expel moisture from the compound,
and to more intimately mix the ingredients together.
Having now described and particularly ascertained the nature of my
said Invention, and the system, mode, or manner in or under which the
same is or may be used or practically carried into effect, I would observe
in conclusion that what I consider to be novel and original, and therefore
claim as the Invention secured to me by the hercin-before in part
recited Letters Patent is,-
First. Commingling air with substances used in the manufacture of
leather cloth and similar fabrics by mechanical agitation or stirring, or
by blowing and mechanical agitation or stirring used in combination,
substantially as herein-before described.
Second. Acting upon compounds consisting of gelatinous or olcaginous
substances, or both, having clastic varnishes for their base, and with
colouring matters mixed therewith, by means of air blown or mechani-
cally agitated thereinto, so as to reduce the time occupied in ripening or
curing leather cloth, floorcloth, and other similar fabrics, substantially
as herein-before described.
In witness whereof, I, the said Thomas Thomson, have hereunto
set my hand and seal, this Twenty-first day of May, One thou-