IMPROVEMENTS IN HEALDS, AND IN THE PREPARATION OF MATERIAL THEREFOR, SUCH MATERIAL BEING ALSO APPLICABLE IN THE MANUFACTURE OF WOVEN BELTS OR BANDS FOR DRIVING MACHINERY, AND FOR OTHER PURPOSES."
Year: 1880

page_text: LETTERS PATENT to Henry Tetlow, of Newton Heath, near the City of
Manchester, in the County of Lancaster, Heald Manufacturer, for an Invention
of "IMPROVEMENTS IN HEALDS, AND IN THE PREPARATION OF MATERIAL
THEREFOR, SUCH MATERIAL BEING ALSO APPLICABLE IN THE MANUFACTURE
OF WOVEN BELTS OR BANDS FOR DRIVING MACHINERY, AND FOR OTHER
PURPOSES."
PROVISIONAL SPECIFICATION left by the said Henry Tetlow at the Office
of the Commissioners of Patents on the 26th August 1880.
HENRY TETLOW, of Newton Heath, near the City of Manchester, in the County
of Lancaster, Heald Manufacturer. "IMPROVEMENTS IN HEALDS, AND IN THE
PREPARATION OF MATERIAL THEREFOR, SUCH MATERIAL BEING ALSO APPLICABLE
IN THE MANUFACTURE OF WOVEN BELTS OR BANDS FOR DRIVING MACHINERY,
AND FOR OTHER PURPOSES."
My Invention relates in the first place to the manufacture of healds or harness
employed in the weaving of textile materials, and has for its object to increase the
durability of the said healds. Healds are ordinarily made of yarn, which is knitted
or woven by the aid of machinery or apparatus. In lieu of the yarn usually
employed I make use of a yarn which is specially prepared for my purposes. The
said yarn is formed partly of yarn and partly of steel, iron, or metal wire. I twist
together one or more lengths of wire with one or more strands of yarn. This may be
effected by substituting the wire for one or more of the strands of yarn in the ordinary
doubling operation. The wire and yarn may be otherwise combined, as, for
example, the yarn may be served or covered with fine wire, or a length of wire may
be covered with yarn.
The material thus prepared may be used in lieu of the
yarn from which healds are ordinarily manufactured, and I further propose to
employ the yarn thus strengthened by the addition of metallic wire in the manu-
facture of belts or bands for driving machinery and for other purposes. Such belts
or bands as ordinarily woven from vegetable or animal fibrous material are liable
to become soon fatigued, stretched, and worn out by usage.
With a view to render
them inore durable, I weave into the said bands yarn combined with wire as
hereinbefore described. The metallic wire may be introduced into the warp
alone of the band, or it may be introduced into both warp and weft.
wire may be spaced throughout the band so as to produce any required degree
of strength, and it may be spaced at different intervals apart corresponding
to those parts in the breadth of the belt which are required to stand a greater or
less tension than the rest. Thus, for example, the wire in the warp may be spaced
The wire may be
more closely together at the selvedges than at the centre.
introduced either previously, combined with yarn, as in the manufacture of my
improved healds, or it may be introduced alone.
The

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Henry Tetlow in the Great Seal Patent Office on the 26th
February 1881.
HENRY TETLOW, of Newton-Heath, near the City of Manchester, in the County
of Lancaster, Manufacturer. "IMPROVEMENTS IN HEALDS, AND IN THE PREPA-
RATION OF MATERIAL THEREFOR, SUCH MATERIAL BEING ALSO APPLICABLE IN
THE MANUFACTURE OF WOVEN BELTS OR BANDS FOR DRIVING MACHINERY, AND
FOR OTHER PURPOSES."
My Invention relates, in the first place, to the manufacture of healds or harness
employed in the weaving of textile materials, and has for its object to increase
the durability of the said healds. Healds are ordinarily made of yarn which is
knitted or woven by the aid of machinery or apparatus. In lieu of the yarn usually
employed I make use of a yarn which is specially prepared for my purposes. The
said yarn is formed partly of yarn and partly of steel, iron, or metal wire. I twist
together one or more lengths of wire with one or more strands of yarn. This may
be effected by substituting the wire for one or more of the strands of yarn in the
ordinary doubling operation. The wire and yarn may be otherwise combined, as,
for example, the yarn may be served or covered with fine wire, or a length of wire
may be covered with yarn. The material thus prepared is used in lieu of the yarn
from which healds are ordinarily manufactured, and the same machines as are now
used in the manufacture of ordinary healds may be used in the production of my
improved healds. The healds being made in the ordinary manner are "gaited" or
"drawn in in the usual manner, and therefore their use does not give rise to any
difficulty. In the second place I employ the yarn thus strengthened by the addition
of metallic wire in the manufacture of belts or bands for driving machinery, and
for other purposes.
Such bolts or bands as ordinarily woven from vegetable or
animal fibrous material are liable to become soon fatigued, stretched, and worn out
by usage.
With a view to render them more durable I weave into the said bands
yarn combined with wire as hereinbefore described. The metallic wire may be
introduced into the warp alone of the band, or it may be introduced into both warp
and weft. The yarn strengthened with wire may be spaced throughout the band
so as to produce any required degree of strength, and it may be employed for the
whole of the warp, or for a part, or for parts of it only, and in the latter case such
yarn may be spaced at intervals apart so as to strengthen those parts in the breadth
of the belt which are required to stand a greater tension than the other parts.
By way of example I may state that the yarn strengthened with wire may be
arranged more closely together at the selvedges than at the centre of the belt. The
wire may be introduced either previously, combined with yarn, as in the manu-
facture of my improved healds, or it may be introduced alone, that is to say, a part
of the warp may consist of wire, the remainder of the warp consisting of ordinary
or suitable yarn, or of my improved yarn which has been strengthened with wire
in accordance with the first part of my Invention. When so combining wire with
an ordinary warp, I prefer to use a flattened wire, such wire combining strength
with pliability, and being in my opinion less liable to cut the yarn, but I shall not
confine myself to any particular section of wire. For some purposes I may use
hardened and tempered steel wire in the manner herein indicated.
Having now fully set forth the nature of my said Invention, I would have it to be
understood that I claim,-
First. The improved heald manufactured from yarn strengthened with metal
wire, substantially as set forth.

page_text: Secondly. The employment of yarn strengthened by twisting wire with its
strands in the manufacture of driving belts and bands.
And, Lastly. The manufacture of driving belts and bands, substantially as set
forth.
In witness whereof, I, the said Henry Tetlow, have hereunto set my hand
and seal, this Twenty-fourth day of February, in the year of our Lord One
thousand eight hundred and eighty-one.
Signed, sealed, and delivered
in presence of
EDWARD K. DUTTON,
41, John Dalton St.,
Manchester,
(Agent for the Patentee).
HENRY TETLOW. (L.S.)