IMPROVEMENTS IN LOOMS FOR WEAVING.
Year: 1876

page_text: LETTERS PATENT to John Butterworth and William Dickinson, Machinists,
and Christopher Catlow, Overlooker, all of Burnley, in the County of Lancaster,
for the Invention of "IMPROVEMENTS IN LOOMS FOR WEAVING.'
Sealed the 28th March 1877, and dated the 4th October 1876.
PROVISIONAL SPECIFICATION left by the said John Butterworth, William
Dickinson, and Christopher Catlow at the Office of the Commissioners of
Patents on the 4th October 1876.
"
JOHN BUTTERWORTH and WILLIAM DICKINSON, Machinists, and CHRISTOPHER
CATLOW, Overlooker, all of Burnley, in the County of Lancaster. IMPROVEMENTS
IN LOOMS FOR WEAVING."
This Invention relates,-
Firstly. To an improved combination of mechanism for stopping the loom when
the shuttle fails to box properly, and also when there is too much strain upon or
tightness of the warp.
Secondly. To an improved combination of mechanism for regulating the tension
on the warp beam, that is to say, an improved weighting motion.
Thirdly. The object of this our Invention is (by the use of improved taking-up
or measuring rollers and improved cloth rollers) to secure a uniform and even action
or "beat up" of the reed on the whole width of the cloth as woven.
For stopping the loom when the shuttle fails to box, we employ an ordinary stop
rod, a swell, and a frog; the latter is connected by a bar with the upper portion of
the vibrator over which the yarn passes. When the shuttle fails to box, the tongue
of the stop rod engages with the frog and forces the latter forward; the bar connected
with the vibrator turns the latter upon its lower shaft or fulcrum and so ensures
the paying off of the necessary quantity or length of yarn to prevent breakage, and
at the same time a finger connected with the front part of the advancing frog acts
upon and pushes off the spring stop handle and the motion of the loom ceases on
the crank passing over its centre of motion; the warp and the whole of the parts of
the loom mechanism referred to resume their proper position.
A break may be employed in connection with the combination above described
and which combination is designed for "fast reed" looms. When there is too
much strain or tension on the yarn the vibrator moves forward, whereon the pro-
Din 21

page_text: jecting finger on the frog reaches the spring handle and knocks it off, stopping the
loom. This latter improvement is applicable to looms generally, but in a loose reed
loom the frog would not be requisite, the bar connected to the vibrator at one end
would at its other end be provided with a finger for knocking off the spring handle.
The weighting motion consists of a T lever (placed thus ); its horizontal arm is
acted upon by means of another lever and weight, or the weight may be applied
directly to the horizontal arm, or a pin in the end of the latter may be received
within an adjusting scroll.
"
On looms as heretofore, the selvage or outer warp threads were not taken up so
tightly as the main body of the warp, therefore the "beat up' or action of the
reed was greatest near the selvages, and so not uniform across the width of the
piece.
According to this our Invention, in lieu of the ordinary cylindrical or parallel
"measuring" roller and cloth roller, we employ rollers aforesaid so made as to taper
from each end to the centre or midway their lengths, or the said rollers may be
hollowed or made concave from end to end.
The rollers made of form above described "takes up" slightly quicker at the ends
than at the centre, that is to say, tightens the selvage warp threads and so admits
of the equal action of the reed upon the centre and width of the cloth being woven.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Butterworth, William Dickinson, and Christopher Catlow in
the Great Seal Patent Office on the 4th April 1877.
JOHN BUTTERWORTH and WILLIAM DICKINSON, Machinists, and CHRISTOPHER
"IMPROVEMENTS
CATLOW, Overlooker, all of Burnley, in the County of Lancaster.
IN LOOMS FOR WEAVING."
This Invention relates,-
Firstly. To an improved combination of mechanism for stopping the loom when
the shuttle fails to box properly, and also when there is too much strain upon or
tightness of the warp.
"
Secondly. The object of this our Invention is by the use of improved "taking-up"
or measuring rollers and improved cloth rollers to secure a uniform and even action
or "beat up" of the reed on the whole width of the cloth as woven.
For stopping the loom when the shuttle fails to box, we employ an ordinary stop
rod, a swell, and a frog, the latter is connected by a bar with the upper portion of
the vibrator over which the yarn passes. When the shuttle fails to box, the tongue
of the stop rod engages with the frog and forces the latter forward; the draw bar
connected with the vibrator turns the latter upon its lower shaft or fulcrum and so
ensures the paying off of the necessary quantity or length of yarn to prevent
breakage, and at the same time a finger connected with the front part of the
advancing frog acts upon and pushes off the spring stop handle and the motion of
the loom ceases. On the crank passing over its centre of motion, the warp and
the whole of the parts of the loom mechanism referred to resume their proper
positions.
A break may be employed in connection with the combination above described
and which combination is designed for "fast reed" looms. When there is too much
strain or tension on the yarn, the vibrator moves forward, whereon the projecting
finger on the frog reaches the spring handle and knocks it off, stopping the loom.
This latter improvement is applicable to looms generally, but in a loose reed loom
the frog and break would not be requisite; the bar connected to the vibrator at
one end would at its other end be provided with a finger for knocking off the spring
handle.
On looms as heretofore, the selvage or outer warp threads were not taken up so

page_text: tightly as the main body of the warp, therefore the "beat up" or action of the reed
was greatest near the selvages and so not uniform across the width of the piece.
"E
According to this our Invention, in lieu of the ordinary cylindrical or parallel
measuring" roller and cloth roller we employ rollers aforesaid so made as to taper
from each end to the centre or midway their length; or the said rollers may be
hollowed or made concave from end to end.
The rollers made of the form above described "take up," slightly quicker at the
ends than at the centre (that is to say), tighten the salvage warp threads and so
admit of equal action of the reed upon the centre and width of the cloth being woven.
Such being the nature and object of this our said Invention, we will now proceed
to describe the same in detail, and in order that the Invention may be fully under-
stood we have hereunto annexed two Sheets of Drawings illustrative thereof, and have
marked the same with Figures and letters of reference, a like letter referring to the
same part in the various views or figures, of which Fig. 1 is a side elevation of part
of a loom having our improvements applied; Fig. 2 is a plan view of Fig. 1; Fig. 3
is an elevation of parts detached; at Fig. 4 is shewn the improved taking-up roller.
For stopping the loom when the shuttle fails to box we employ an ordinary stop
rod A, a swell and a frog B; the latter is connected by a bar C with the upper
portion of the vibrator D, over which the yarn passes. When the shuttle fails to
box, the tongue a of the stop rod engages with the frog B and forces the latter
forward; the draw bar C connected with the vibrator D turns the latter upon its
lower shaft or fulcrum E, and so ensures the paying off of the necessary. quantity
or length of yarn to prevent breakage, and at the same time a finger F connected
with the front part of the advancing frog acts upon and pushes off the spring stop
handle G and the motion of the loom ceases. On the crank passing over its centre
of motion the warp and the whole of the parts of the loom mechanism referred to
resume their proper positions by the action of the springs H and rod J, connected
to the other arm L of the vibrator.
A break may be employed in connection with the combination above described and
which combination is designed for "fast reed" looms. When there is too much
strain or tension on the yarn the vibrator moves forward, whereon the projecting
finger F on the frog B reaches the spring handle and knocks it off, stopping the
loom. This latter improvement is applicable to looms generally, but in a loose reed
loom the frog and break would not be requisite; the bar connected to the vibrator
at one end would at its other end be provided with a finger for knocking off the
spring handle.
In lieu of the ordinary cylindrical or parallel "measuring" roller and cloth roller,
we employ rollers aforesaid tapering from each end to the centre or midway their
length or hollowness as at S, W.
Having thus fully described the nature and particulars of this our said Invention
and the manner in which the same is to be performed, we claim,-
Firstly. The application and use of the draw bar C connected with the frog B
and the vibrator D, as and operating for the purpose herein fully described.
Secondly. The use of the measuring roller S and cloth roller W, of the form
described for the purpose aforesaid.
In witness whereof, I, the said Christopher Catlow, for and on behalf of
myself and the said John Butterworth and William Dickinson, have here-
unto set my hand and seal this Twenty-seventh day of March, in the year
of our Lord One thousand eight hundred and seventy-seven.
'
Witness,
WALTER BRIERLY,
Patent Agent,
Halifax & Blackburn.
CHRISTOPHER CATLOW. (L.S.)