IMPROVEMENTS IN POWER LOOMS
Year: 1876

page_text: LETTERS PATENT to John Barraclough, Overlooker, Perseverance Mill, Wibsey,
near Bradford, in the County of York, for the Invention of "IMPROVEMENTS
IN POWER LOOMS."
Sealed the 13th April 1877, and dated the 31st October 1876.
PROVISIONAL SPECIFICATION left by the said John Barraclough at the
Office of the Commissioners of Patents on the 31st October 1876.
JOHN BARRACLOUGH, Overlooker, Perseverance Mill, Wibsey, near Bradford, in
the County of York. "IMPROVEMENTS IN POWER LOOMS."
My Invention relates to improved apparatus fitted to fast reed looms for easing
the loom when picking. For this purpose I fit on the frog fixed at the end of the
frame of a power loom a curved bracket; the top of this bracket is fitted to suit
the curve formed on the top of the frog, enabling the stop rod finger to travel freely
when picking. The curved bracket is screwed or bolted to the frog, or to the frame
end of the loom. The stop rod finger coming in contact with the end of the curved
bracket is raised, and thus pushes back the curved lever of the stop rod and releases
the shuttle; but should the shuttle stop in any part of its travel the stop rod finger
would drop into the recess formed in the frog in the usual manner stopping the
loom. For broad looms I fit a curved bracket at each end.
The employment of the curved bracket gives ease to the loom when working,
takes less power to drive, gives uniformity of motion, lessens the wear of picking
noses and breakage of picking sticks, straps, and shuttles, and the general working
parts of a fast reed loom; it also releases the weight on the shuttle as the loom
begins to pick, gives less work to the weaver in placing and taking out the shuttle,
and also enables a fast reed loom to run as light as a loose reed loom.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Barraclough, in the Great Seal Patent Office on the 25th
April 1877.
JOHN BARRACLOUGH, Overlooker, Perseverance Mill, Wibsey, near Bradford, in
the County of York. "IMPROVEMENTS IN POWER LOOMS."
The said Invention relates to improved apparatus fitted to fast reed looms for
easing the loom when picking. For this purpose I fit on the frog fixed at the end.
of the frame of a power loom a curved bracket; the top of this bracket is fitted to
suit the curve formed on the top of the frog, allowing the stop rod finger to travel
freely when picking. The curved bracket is screwed or bolted to the frog or to the
frame end of the loom, or I fit on the frame end of the loon a rocking lever working
with the sword of the loom. On the top of this lever is fitted a moveable friction roller.
The stop rod finger coming in contact with the top of the curved bracket, or on
the top of the friction roller when at the top stroke, is raised and pushes back the
curved lever of the stop rod releasing the shuttle; should the shuttle stop in any
part of its travel the stop rod finger would drop into the recess formed in the frog in
the usual manner, instantly stopping the loom. For broad looms I fit a curved
bracket or rocking lever at each end of the loom.
The employment of my curved bracket or rocking lever gives ease to the loom
when working, takes less power to drive, gives uniformity of motion, lessens the
wear of picking noses, breakage of picking sticks, straps, and shuttles, and the general
working parts of a fast reed loom; also releases the weight on the shuttle as the
loom begins to pick, gives less work to the weaver in placing and taking out the
shuttle, also allowing a fast reed loom to run as light as a loose reed loom.
But in order that my improvements may be better understood I will proceed to
more particularly describe the same by reference to the accompanying Drawing, in
which,-
Figure 1 represents a side view of rocking lever apparatus for easing the loom
when picking; Figure 2, front view of the same.
Figure 3 represents a side view of curved bracket fitted to the frog of a loom,
also for easing the loom when picking.
Similar letters of reference are used to represent similar parts.
A is the frame of a loom to which is fitted the frog B. In the frame is formed
a slot hole through which passes the stud end D of a rocking lever E, in the
bottom part of which is formed a slot hole F into which is passed a bent rod G,
which is fixed to the sword H of the loom. The top of the rocking lever is made
with side flanges I, forming guides in which fits a top lever J, which can be raised
or lowered as required by incans of the stud K and slot opening L. On the top
lever is fitted a friction roller M, on which works the stop rod finger N; this stop
rod finger is kept in working position by means of the spring O fitted on the bent
rod G, and hooked on to the hook P fitted to the stop rod shaft Q. The rocking
lever E works forwards and backwards with the sword H, and when the rocking
lever is at the top of its stroke the stop-rod finger N is raised, which pulls down
the curved spring lever R, and withdraws the swell S from the shuttle box T,
which relieves the shuttle after entering the shuttle box from the great pressure
put upon it by the spring lever R and swell S.
The apparatus admits of the nicest regulation for stopping the loom in case of
any obstruction in the progress of the shuttle, for should the shuttle stop in any
part of its travel the stop rod finger N would drop in the recess U formed in the
frog B in the usual manner, instantly stopping the loom.
Å curved bracket V fixed to the end of the loom frame, or to the frog B, may be
employed instead of the rocking lever. The top of the curved bracket V is made to
suit the curve of the top of the frog, allowing the stop rod finger N to travel freely
when picking. When the stop rod finger N comes in contact with the top of the
curved bracket V it is raised, pulling down the curved spring lever R, and relieving
the shuttle as herein-before described.

page_text: The employment of the apparatus gives ease to fast reed loons, broad or narrow,
when working, takes less power to drive, gives uniformity of motion, lessens the
wear of the shuttles, picking sticks and straps, pickers, picking noses and cones,
releases the weight on the shuttle as the loom begins to pick, gives less work to
the weaver in placing and taking out the shuttle, and allows a fast reed loom to run
as light as a loose reed loom.
Having thus described my improvements and the best means I am acquainted.
with for carrying the same into effect, I would have it understood that I do not
confine myself to the precise details shewn and described, as they may be varied
without departing from the peculiar character of the Invention; but what I do
claim is, the construction and employment of self-acting apparatus for relieving the
shuttle after entering the shuttle box from the great pressure put upon it by the
spring lever and swell, substantially as herein-before described and represented in
the accompanying Drawing.
In witness whereof, I, the said John Barraclough, have hereto set my hand
and seal, this Twenty-third day of April, in the year of our Lord One
thousand eight hundred and seventy-seven.
Witness,
WALTER JAS. TURNER, C.E.,
Patent Agent,
Bradford.
JOHN BARRACLOUGH. (LS.)