IMPROVEMENTS IN UMBRELLA CLOTHS."
Year: 1880

page_text: LETTERS PATENT to William Critchley, of Bradford, in the County of York,
Stuff Merchant, for an Invention of "IMPROVEMENTS IN UMBRELLA CLOTHS."
PROVISIONAL SPECIFICATION left by the said William Critchley at the
Office of the Commissioners of Patents on the 30th November 1880.
WILLIAM CRITCHLEY, of Bradford, in the County of York, Stuff Merchant.
"IMPROVEMENTS IN UMBRELLA CLOTHS."
This Invention relates to certain improvements in that class of fabrics known as
umbrella cloths, for the covering of umbrellas, parasols, and sunshades, whereby I
produce a cloth composed entirely of cotton, but in every respect similar in
appearance to cloth or fabrics composed of cotton warp and worsted weft. This
effect is obtained by weaving the cloth a double or split twill. The appearance is
not only similar to the more costly cotton warp and worsted weft fabrics, but it is
equally durable and far superior to any other class of fabric composed entirely of
cotton hitherto manufactured for this purpose.

page_text: .
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Critchley in the Great Seal Patent Office on the
30th May 1881.
WILLIAM CRITCHLEY, of Bradford, in the County of York, Stuff Merchant.
"IMPROVEMENTS IN UMBRELLA CLOTHS."
This Invention relates to certain improvements in that class of fabrics known as
umbrella cloths, used for covering umbrellas, parasols, and sunshades.
The object of my Invention is to produce a cloth composed entirely of cotton,
having the appearance of cloths or fabrics composed of cotton warp and worsted
weft, being quite as durable as and costing much less than such last mentioned
cloths, and surpassing in durability and appearance any other known class of fabric
composed entirely of cotton, and used for the purpose of covering umbrellas.
Hitherto fabrics composed entirely of cotton, such as gingham and ordinary twill
cloths, have been used for this purpose, but owing to the hardness and non-elasticity
of these fabrics, the action of rain and sun has rendered them unservicable. I
accomplish my object in the following manner:-I weave the cloth so that by
regulating the warp threads in the ordinary manner for such purpose, a double or
split twill is woven in the piece. By this means the fabric produced is much softer,
more elastic, and more durable than umbrella cloths composed entirely of cotton
woven in any other manner. I am aware that fabrics composed of a cotton warp
and a worsted weft, having a double or split twill, bave previously been used for
covering umbrellas, but umbrellas have never before been covered with fabrics
composed entirely of cotton having a split or double twill.
What I claim as my Invention is,-
The manufacture of a fabric composed entirely of cotton having a double or
split twill, for the purpose of covering umbrella, parasol, and sunshade frames,
substantially as herein before described.
In witness whereof, I, the said William Critchley, have hereunto set my
hand and seal, this Twenty eighth day of May, in the year of our Lord
One thousand eight hundred and eighty one.
TIMATTY nu
יוזז WII
CRITCHLEY. (L.S.)