IMPROVEMENTS IN THE MANUFACTURE OR PREPARATION OF BLINDS, TAPESTRY, AND OTHER LIKE USEFUL OR ORNAMENTAL ARTICLES
Year: 1879

page_text: LETTERS PATENT to Joseph Julius Sachs, of Barrow in Furness, in the County
of Lancaster, for the Invention of "IMPROVEMENTS IN THE MANUFACTURE OR
PREPARATION OF BLINDS, TAPESTRY, AND OTHER LIKE USEFUL OR ORNAMENTAL
ARTICLES."
Sealed the 28th November 1879, and dated the 11th September 1879.
PROVISIONAL SPECIFICATION left by the said Joseph Julius Sachs at the
Office of the Commissioners of Patents on the 11th September 1879.
JOSEPH JULIUS SACHS, of Barrow in Furness, in the County of Lancaster,
"IMPROVEMENTS IN THE MANUFACTURE OR PREPARATION OF BLINDS, TAPESTRY,
AND OTHER LIKE USEFUL OR ORNAMENTAL ARTICLES."
My Invention relates to the use in the production of blinds, tapestry, and other
like useful or ornamental articles of lace or textile fabrics coated or covered with a
film or layer of metal or metals by galvanic, chemical, or other means, and thus
rendered available as a substitute for wire fabrics frequently employed for certain.
of such purposes. The metal or metals may be applied to the lace or other fabric
either when the latter is in its finished or manufactured condition, or to the yarn
thread or spun materials before they are woven or otherwise made up into the form
of the finished fabric.
According to one mode of carrying out my Invention the fabric or material is
coated or covered either wholly or partly with a film or layer of metal or metals
by galvanic agency by what is known as the electro type process; this operation
may be conveniently performed by first coating the fabric or material with black
lead or other conducting substance, and then immersing the fabric or material
thus treated in a galvanic bath so as to receive a film or layer of metal, or into two
or more galvanic baths in succession so as to receive a series of layers of different
metals.
According to another mode of carrying out my Invention in lieu of employing
a galvanic bath a metallic coating is produced upon the fabrics or materials by
chemical agency in the following manner. The fabric or material is steeped in or
impregnated with acetate of lead (for example) or other well known metallic
Price Ada

page_text: substance, and then treated with an acid, such, for example, as sulphurous acid or
sulphuric acid, or with a salt, or with other chemical substances, such, for example,
as hyposulphide of soda, which will fix the metallic substance previously
applied.
Or the fabrics or materials may be covered with metallic substances by precipi-
tation, for which purpose suitable acids, salts, and gases, such, for example, as
hydrothionic acid, sulphide of hydrogen, and the like, may be used.
In some cases in lieu of producing a metallic coating upon the fabrics or mate-
rials they may be bronzed, painted, varnished, or covered with other suitable
substances, such, for example, as gelatine solutions of india rubber, the fabric or
material being subsequently vulcanized by the application of heat or otherwise.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Joseph Julius Sachs in the Great Seal Patent Office on the 11th
March 1880.
JOSEPH JULIUS SACHS, of Barrow in Furness, in the County of Lancaster.
"IMPROVEMENTS IN THE MANUFACTURE OR PREPARATION OF BLINDS, TAPESTRY,
AND OTHER LIKE USEFUL OR ORNAMENTAL ARTICLES."
My said Invention relating to the manufacture or preparation of blinds, tapestry,
and other like useful or ornamental articles, has reference to the preparation or treat-
ment of lace or other open worked fabrics and close figured fabrics by coating or
covering the same with metallic or other substances as hereinafter mentioned so as
to render such fabrics available or better adapted for use for the said purposes.
According to one mode of carrying out my said Invention I take a piece of lace
or other open worked fabric, or a piece of close figured fabric, and coat or cover
the same either wholly or partly with a film or layer of metal or metals by galvanic
agency in the following manner-I first coat the fabric with black lead or other
conducting substance, and then mount the fabric so prepared upon a frame either
composed of or covered either wholly or partly with wire work or other suitable
conducting material, and either of a flat shape or made in the form of a skeleton or
other roller, or I may mount the fabric so prepared in the form of an endless
web upon two rollers thus constructed. I then place the frame, or roller or rollers
carrying the fabric in a bath of a solution of the metal (say copper, for example),
which it is required to deposit upon such fabric and introduce into the said bath,
say two plates of copper (for example), one at each side of the frame, or roller or
rollers, or when the fabric is wound around a roller a ring or tube of copper (for
example) may be employed surrounding the said roller, the said plates, or ring, or
tube, forming an electrode. I then connect one pole of a magneto electric or
dynamo electric machine to the said electrode, and connect the opposite pole of such
machine to the frame so that a film or layer of the metal contained in solution in
the bath will be deposited upon the fabric under treatment.
I also impart motion to the frame, or roller, or rollers carrying the fabric, or to
the electrode, or both or all of them, either in a rotary direction or otherwise,
whereby a greater uniformity is obtained in the deposit or distribution of the
metal upon or over the fabric.
The frames or rollers may be placed either vertically, horizontally, or otherwise,
and two or more of the frames or rollers may be connected together so as to move
in unison, as will be well understood. If required I may employ in succession two
or more galvanic baths containing different metals in solution so that the fabric will
receive a series of layers of different metals.
According to another mode of carrying out my said Invention in lieu of employing
a galvanic bath or metallic coating is produced upon the fabric by chemical agency
in the following manner:-The fabric is steeped in or impregnated with acetate of
lead or other well known metallic substance, and then treated with an acid, such,
for example, as formic acid, or with a salt, or with other chemical substances, such,
for example, as hyposulphide of soda, which will fix the metallic substance pre-
viously applied, after which the fabric thus treated is immersed in a bath, or baths,
of any suitable metal, or metals, so as to receive a film or layer upon its surface.
Or the fabrics may be covered with metallic substances by precipitation, for which
purpose suitable acids, salts, and gases, such, for example, as hydrothionic acid,
sulphide of hydrogen, and the like, may be used.
When lace or other open worked fabric is used and prepared or treated in the
manner hereinbefore described the material produced is particularly suitable as a
substitute for wire fabrics and for blinds, screens, tapestry, and the like. If the

page_text: lace or other open worked fabric is intended to be used for these purposes other
than metallic coatings may be employed.
For example, the fabric may be bronzed, or be. painted, varnished, or covered
with gelatine, chrome, gelatine solutions of india rubber, and other substances
which will render the fabric waterproof and more durable. If solutions of india
rubber are employed the prepared fabric may be subsequently vulcanized by the
application of heat or otherwise.
When metallic coatings are employed the fabrics thus prepared may be used not
only for blinds, screens, or tapestry, but also for the facings of chimney pieces and
other similar fittings or decorative work of apartments, for bird cages, as substitutes
for engraved or etched work or castings, or for the fret-work of pianos and for
other like useful or ornamental purposes.
Having now described and particularly ascertained the nature of my said
Invention, and the manner in which the same is or may be used or 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 hereinbefore in part
recited Letters Patent, is,―
The manufacture or preparation of blinds, tapestry, and other like useful or
ornamental articles, substantially in the manner hereinbefore described.
In witness whereof, I, the said Joseph Julius Sachs, have to this my Specifica
tion set my hand and seal, this Tenth day of March, One thousand eight
hundred and eighty.
Signed, sealed, and delivered by
the said Joseph Julius Sachs
in the presence of
CHARLES J. ROBERTS,
Solicitor, Rochdale.
J. J. SACHS. (L.S.)