IMPROVEMENTS IN LOOMS FOR WEAVING."
Year: 1877

page_text: LETTERS PATENT to Frederick James Astbury, of Manchester, in the County
of Lancaster, for the Invention of "IMPROVEMENTS IN LOOMS FOR WEAVING."."
PROVISIONAL SPECIFICATION left by the said Frederick James Astbury at
the Office of the Commissioners of Patents on the 28th June 1877.
FREDERICK JAMES ASTBURY, of Manchester, in the County of Lancaster. "IM-
PROVEMENTS IN LOOMS FOR WEAVING."
This Invention relates to the construction of an improved apparatus for
applying friction to the yarn beam for the purpose of controlling the letting off of
the yarn from the beam as the weaving proceeds, and is designed for the purpose of
dispensing with the heavy weights and ropes usually employed for that purpose.
It consists principally of. a metallic band or clip, which surrounds the yarn beam,
and is kept tight by means of a small weighted lever.
Some yarn beams are made with a broad turned iron ring or barrel at each end
for the purpose of preventing the friction ropes from wearing the beam. These
beams require no further preparation to adapt my Invention thereto, but such
beams as are not provided already with such iron rings or barrels must be furnished
therewith.
The clips are made of wrought iron to fit all round these rings or barrels, and
lined with leather or otherwise. The clips are made in two semicircular pieces
hinged together at one end on a pin carried by a bracket fixed to the loom framing,
so that they can be easily opened for changing the beam; their other ends are
furnished with projecting flanges, one of which has a hinged piece provided with a
hook, to which the weighted lever is attached by a link in such a manner that
the weight has a constant tendency to tighten or close the clip on to the barrel on the
yarn beam, and thus to apply sufficient friction to the said beam to control the*
letting off of the yarn, and keep it always at a proper tension without being rigid,
or in any way interfering with the elastic movement necessary to allow of the free
rising and falling of the healds.
:

page_text: In looms for weaving light fabrics a very small weight only is required, and it is
only necessary to use the clip at one end of the yarn beam, but for weaving heavy
cloths the weight may be increased, and the clip applied to both ends of the yarn
beam, but this latter is only required for very heavy work.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Frederick James Astbury in the Great Seal Patent Office on the
28th December 1877.
FREDERICK JAMES ASTBURY, of Manchester, in the County of Lancaster.
PROVEMENTS IN LOOMS FOR WEAVING."
"IM-
This Invention relates to the construction of an improved apparatus for applying
friction to the yarn beam for the purpose of controlling the letting off of the yarn
from the beams as the weaving proceeds, and is designed for the purpose of
dispensing with the heavy weights and ropes or chains usually employed for that
purpose. It consists principally of a metallic band or clip, which surrounds the
yarn beam, and is kept tight by means of a small weighted lever.
Such being the nature and object of my said Invention, I will now proceed to
describe in detail the manner in which the same is to be or may be performed or
carried into practical effect, and in order that the same may be clearly understood.
I have annexed hereunto a Sheet of Drawings illustrative thereof, and have marked
the same with figures and letters of reference corresponding with those in the
following explanation thereof:
Fig. 1 in the annexed Drawing is a back view, and Fig. 2 a section of the yarn
beam of a loom with my Invention, shown as applied thereto, a, a, being part of
the frame of the loom, and b, b, the yarn beam.
Some yarn beams are made with a broad turned iron ring or barrel c, c, at each
end for the purpose of preventing the friction ropes or chains from wearing the
beam. These beams require no further preparation to adapt my Invention thereto,
but such beams as are not provided already with such iron rings or barrels must be
furnished therewith, excepting in those cases where the beams themselves are
of iron.
The clips d, d, are made of wrought iron to fit all round the rings or barrels c, c,
and lined with leather or otherwise. The clips are made in two semicircular pieces
hinged together at one end on a pin e carried by a bracket fixed to the loom
framing a, a, so that they can be easily opened for changing the beam; their other
ends are furnished with projecting flanges f, f, one of which has a hinged piece g, g
provided with a hook, to which the weighted lever h, h, is attached by a link i, i,
in such a manner that the weight has a constant tendency to tighten or close the
clips d, d, on to the barrel c, c, on the yarn beam b, b, and thus to apply sufficient
friction to the said beam to control the letting off of the yarn, and keep it always
at a proper tension without being rigid, or in any way interfering with the elastic
movement necessary to allow of the free rising and falling of the healds.
In looms for weaving light fabrics a very small weight only is required, and it is
only necessary to use the clip at one end of the yarn beam, but for weaving heavy
cloths the weight may be increased, and the clip applied to both ends of the yarn

page_text: beam, as shown on the Drawing, but this latter is only required for very heavy
work.
Having now described the nature and object of my said Invention, together with
the manner in which the same is to be or may be performed or carried into practical
effect, I wish it to be understood that I claim as my Invention, the application of a
jointed clip (or clips) to the yarn beam, substantially as herein-before more
particularly set forth.
In witness whereof, I, the said Frederick James Astbury, have hereunto set my
hand and seal, this Twenty-second day of December, in the year of our Lord
One thousand eight hundred and seventy-seven.
FREDERICK JAMES ASTBURY. (L.S.)