AN IMPROVEMENT IN THE MANUFACTURE OF AIR- TIGHT SEATS, BEDS, AND OTHER ARTICLES REQUIRED TO BE INFLATED AND AIR- MIGHT
Year: 1854

page_text: LETTERS PATENT to Thomas Parramore, of 50, Castle Street, Southwark,
for the Invention of "AN IMPROVEMENT IN THE MANUFACTURE OF AIR-
TIGHT SEATS, BEDS, AND OTHER ARTICLES REQUIRED TO BE INFLATED AND AIR-
MIGHT
"
Scaled the 17th August 1854, and dated the 16th June 1854.
PROVISIONAL SPECIFICATION left by the said Thomas Parramore
at the Office of the Commissioners of Patents, with his Petition, on the
16th June 1854.
I, THOMAS PARRAMORE, of 50, Castle Street, Southwark, do hereby declare
the nature of the Invention for "AN IMPROVEMENT IN THE MANUFACTURE
OF AIR-TIGHT SEATS, BEDS, AND OTHER ARTICLES REQUIRED TO BE INPLATED AND
AIR-TIGHT," to be as follows:-
Heretofore in the manufacture of air seats, beds, and other articles made of
woven fabric, and required to be inflated and air-tight, it has been usual to
employ woven fabrics rendered water and air tight by india-rubber. Now,
my Invention consists of causing the woven fabrics employed to be rendered
water-tight on one of their surfaces by applying oil thereto, and on the other
surface the fabrics are rendered air and water tight by india-rubber; and air
seats, beds, and other articles required to be inflated, are composed of fabrics

page_text: so prepared, they being cemented together with their india-rubber surfaces
towards each other, and into forms desired. By these means the outer sur-
faces of air seats, beds, and other inflated flexible articles, will be waterproof
on the outside, and the woven fabrics will not absorb moisture, as heretofore
has been the case when using woven fabrics in making air seats, beds,
and other inflated articles, where the outer surfaces have not been rendered
waterproof by oil.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Parramore in the Great Seal Patent Office
on the 16th December 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
PARRAMORE, of 50, Castle Street, Southwark, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixteenth day of June, in the year of our Lord
One thousand eight hundred and fifty-four, in the seventeenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Thomas Parramore, Her special licence that 1, the said Thomas
Parramore, my executors, administrators, and assigns, or such others as
1, the said Thomas Parramore, 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 "AN
IMPROVEMENT IN THE MANUFACTURE OF AIR-TIGHT SEATS, BEDS, AND OTHER ARTICLES
REQUIRED TO BE INFLATED AND AIR-TIGHT," upon the condition (amongst others)
that I, the said Thomas Parramore, by an instrument in writing under my
hand and scal, 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 Thomas Parramore, 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 thereof (that is to say)
--
Heretofore in the manufacture of air seats, beds, and other articles made of
woven fabric, and required to be inflated and air-tight, it has been usual to

page_text: employ woven fabrics rendered water and air tight by india-rubber. Now,
my Invention consists of causing the woven fabrics employed to be rendered
water-tight on one of their surfaces by applying oil thereto, and on the other
surface the fabrics are rendered air and water tight by india-rubber; and air
seats, beds, and other articles required to be inflated are composed of fabrics
so prepared, they being cemented together with their india-rubber surfaces
towards each other, and into forms desired. By these means the outer surfaces
of air seats, beds, and other inflated flexible articles will be waterproof on the
outside, and the woven fabrics will not absorb moisture, as heretofore has
been the case when using woven fabrics in making air seats, beds, and other
inflated articles, where the outer surfaces have not been rendered waterproof
by oil.
Having thus stated the nature of my Invention, I will proceed to describe
the manner of performing the same. In the manufacture of air beds and
other articles requiring to be inflated and air-tight, it has been usual to
employ woven fabrics rendered air-tight by coating one side of the fabric
with india-rubber. which is placed to the interior of the inflated articles, the
uncoated side of the fabric being exterior of such articles, and consequently
liable in use to absorb moisture, and this moisture is difficult to dry off by
artificial heat without injury to such articles; and in other cases such air-
proof articles have been made by employing double fabrics rendered air-proof
by india-rubber between them, and such fabrics have been equally liable to
absorb moisture. Now, the object of my Invention is to prepare one side of the
woven fabric, of which such articles are to be made, with oil, preferring boiled
linseed oil, and such surface is to have several coatings of such oil in like
manner to that in which fabrics have before been prepared with drying oils,
such oil being in some instances combined with vegetable black or other
coloring matter, according to the appearance it is desired to give to such
surface, and to this preparation of fabrics, separately, I make no claim. The
fabric is then to be coated with india-rubber on the other side, so as to make
it completely air-tight, to which process no claim is made, it being well
understood; and then the fabric thus prepared is to be cemented with india-
rubber cement, in such manner as to make air chambers of a form and
character suitable for air seats, air beds, and other hollow air-tight articles of
a like character, and these articles are made and put together in like manner to
that in which like descriptions of seats, beds, and other air-tight articles have
heretofore been made when using fabrics coated with india-rubber, but not
impregnated and prepared with drying oils, or preparations containing drying
oils. By this combination I am enabled to make air seats, air beds, and other

page_text: air-tight articles of a like character, the fabrics of which the same are composed
being rendered non-absorbent of moisture, and consequently not liable to
retain any wet or moisture which may come on them.
In witness whereof, I, the said Thomas Parramore, have hereunto
set my hand and seal, this Sixteenth day of December, in the year of
our Lord One thousand eight hundred and fifty-four.
Witness,
WM. TONGUE.
THOMAS PARRAMORE. (L.S.)