IMPROVEMENTS IN LOOMS FOR WEAVING, APPLICABLE ALSO TO OTHER MACHINES."
Year: 1880

page_text: LETTERS PATENT to Joseph Cook and William Lambert Heaton, both of
Bolton, in the County of Lancaster, for an Invention of "IMPROVEMENTS
IN LOOMS FOR WEAVING, APPLICABLE ALSO TO OTHER MACHINES."
PROVISIONAL SPECIFICATION left by the said Joseph Cook and William
Lambert Heaton at the Office of the Commissioners of Patents on the 23rd
October 1880.
"
JOSEPH COOK and WILLIAM LAMBERT HEATON, both of Bolton, in the County
of Lancaster. "IMPROVEMENTS IN LOOMS FOR WEAVING, APPLICABLE ALSO TO
OTHER MACHINES."
<;
Our Invention is particularly applicable to the letting off motion of the yarn
beam of looms, and consists in dispensing with the weights and levers connected
therewith, and in the use of improved apparatus whereby we obtain the requisite
tension and elasticity.
We fix a flange on each end of the beam, and in each flange we form a groove or
grooves of any desired shape, and round each flange we place a short endless rope,
and to each rope is suspended by hooks an iron rod passing through two sides of a
bracket fixed to the cross rail; the rods are screwed, and a nut on each rod bears
against the lower face of the top side of the bracket, and india rubber washers or
other springs bear against the lower face of the bottom side of the bracket, and are
secured by nuts. The requisite tension is obtained by tightening the upper nuts;
the bottom nuts are then tightened until the washers or springs are sufficiently
compressed, and the upper nuts are then loosened, thus obtaining the tension and
elasticity required for the yarn. Our improvements may be used in connection with
levers and weights, and may be applied to other machines where elasticity and
tension are required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph Cook and William Lambert Heaton in the Great Seal
Patent Office on the 23rd April 1881.
JOSEPH COOK and WILLIAM LAMBERT HEATON, both of Bolton, in the County
of Lancaster. "IMPROVEMENTS IN LOOMS FOR WEAVING, APPLICABLE ALSO TO
OTHER MACHINES."
Our Invention is particularly applicable to the letting off motion of the yarn
beam of looms, and consists in dispensing with the weights and levers connected
therewith, and in the use of improved apparatus whereby we obtain the requisite
tension and elasticity.
We fix a pulley on each end of the beam, and in each pulley we form a groove or
grooves of any desired shape, and round each pulley we place a short endless rope,
and to each rope is suspended by hooks an iron rod passing through two sides of a
bracket fixed to the cross rail; the rods are screwed, and a nut on each rod bears
against the lower face of the top side of the bracket, and india rubber washers or
other springs bear against the lower face of the bottom side of the bracket, and are
secured by nuts. The requisite tension is obtained by tightening the upper nuts;
the bottom nuts are then tightened until the washers or springs are sufficiently
compressed, and the upper nuts are then loosened, thus obtaining the tension and
elasticity required for the yarn.
Our improvements may be used in connection with levers and weights, and may
be applied to other machines where elasticity and tension are required.
And in order that our Invention may be fully understood and readily carried into
effect, we will describe the accompanying Sheet of Drawings, reference being had
to the Figures and letters marked thereon.
Fig. 1 shows our Invention applied to the yarn beam of a loom. a is the yarn
beam, and is a pulley or annular casting in which is a groove for the endless
rope c, which is attached to hooks on the screwed rod d, passing through the
bracket e, e¹, fixed to the cross rail f. Screwed on the rod d is the nut g, and on
the rod d below the lower side of the bracket marked e¹ are india rubber washers h
and the nut i. To obtain the requisite tension the nut g is tightened against the
side of the bracket marked e, the nut i is then tightened until the washers are
sufficiently compressed, and the nut g is then loosened; we thus obtain the tension
and elasticity required.
Spiral springs may be used instead of the washers h.
Fig. 2 shows a modification of our Invention. a is the beam, b is the pulley,
and c is the rope, one end of which is attached to a screw eye k fixed on one side
of the cross railf, and the other end of the rope is attached to the rod d, passing
through a bracket e, e', and fitted with nuts and washers, as above described.
Fig. 3 shows another modification of our Invention. a is the beam, b the pulley,
and the rope, one end of which is attached to the screw eye k¹, passing through
the bracket e on the cross rail f, and the other end of the rope is attached to the
steel spring h' fixed to the cross rail, the nut m on the screw eye.¹ is tightened to
obtain the tension required, and the spring h¹ gives the desired elasticity.
Although we have shown our Invention applied to a yarn beam, it may be
applied to other machines where an analogous elastic "drag" is required. The
manner of connecting the tension rope to the india rubber or other spring may be
varied, and a waved or other shaped groove may be formed in the pulley, and
weights and levers may be used instead of springs connected to a rope or ropes
passing round the grooved pulley.
Having stated the nature of our said Invention, and described the manner of

page_text: performing the same, we would have it understood that we not limit ourselves to
the details shown and described, as they may be varied or modified.
What we claim is,―
1. The combination of a spring or springs with a rope or ropes for applying
tension to the yarn beams of looms or other rotating parts of machines for which
an elastic tension is required, substantially as shown and described.
2. The pulley marked b, in which is a plain or waved groove to receive the
tension rope, substantially as and for the purpose herein described.
In witness whereof, we, the said Joseph Cook and William Lambert Heaton,
have hereunto set our hands and seals, this Twenty second day of April,
One thousand eight hundred and eighty one.
JOSE DIT GOOZ
JOSEPH COOK. (..)
W. L. HEATON. (L.S.)