IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1862

page_text: PROVISIONAL SPECIFICATION left by Richard Stansfield and John
Dodgeon at the Office of the Commissioners of Patents, with their
Petition, on the 15th December 1862.
We, RICHARD STANSFIELD, Ironfounder and Machinist, and JOHN DODGEON,
Mechanic, both of Todmorden, in the County of Lancaster, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN LOOMS FOR WEAVING,"
to be as follows:-
This Invention consists, first, in an improved stopping motion for stopping the
loom when the shuttle is not in the box. We employ in each shuttle box
that description of swell which is acted upon by the top of the shuttle,.but bring
the end of the swell to the back of the box, so that when the swell is held up
by the shuttle its end shall come in contact with a lever on the stop rod and
hold up
the stop rod finger, but when the shuttle is not in the box the end of
the swell shall not be in contact with the lever, and thereby allow the stop
rod finger to be depressed and come in contact with the frog and stop the
loom. We also employ the check strap for stopping the loom when the shuttle
is not in the box. We connect the strap at two places in opposite positions to
a boss or pulley working on a stud at the front of the slay, so that when the
shuttle acts against the strap end in either shuttle box the boss shall be turned
in the same direction. The boss is attached by part of the check strap or other
connection to a lever on the stop rod or to the stop rod finger itself, in such a
manner that when the shuttle is properly boxed and strikes the end of the

page_text: check strap it raises the stop rod finger out of contact with the frog, but when
the shuttle does not arrive in the box the check strap is not pulled, and the
finger not being raised comes in contact with the frog and stops the loom. Or
instead of connecting the check strap to one boss, we divide it into two parts,
and pass the ends over two guide rollers, and connect them either singly or
conjointly to the stop rod finger. The stop rod extends from one side of the
loom to the other, or a short rod only is attached to one of the sword arms.
In either case we use guiding plates to guide the stop rod finger until near
the frog, so as to prevent extra strain on the check strap.
Secondly, in an improved arrangement of buffer or check strap. We coil one
end of the strap round a concentric or eccentric boss fixed to the slay or lathe,
instead of fixing to it the end of the strap itself, by which means there is
greater elasticity and prevention of wear and tear than in any other method.
And, thirdly, in an improved mode of stopping the loom when the weft thread
breaks, or when there is no weft; we place the weft fork on the opposite side to
the setting-on rod, and instead of placing the hammer on a stud we fix it to a
shaft or tube having upon it a lever which is acted upon by the absence of the
'weft, and also at the other end another lever which operates upon the setting-
on rod or spring handle and liberates the brake, so as to stop the loom at the
breakage or absence of the first pick of weft. We place the weft break on a
segmental bearing at one end of a lever communicating with the setting-on
rod, so that the break can swivel in its bearing, and thereby cause an equal
clearance between it and the fly wheel in any position required.