IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1871

page_text: PROVISIONAL SPECIFICATION left by Thomas Richmond and William
Birch Cooper at the Office of the Commissioners of Patents, with
their Petition, on the 18th January 1871.
We, THOMAS RICHMOND, of Burnley, in the County of Lancaster, and
WILLIAM BIRCH COOPER, of Bowden, in the County of Chester, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
LOOMS FOR WEAVING," to be as follows:-
First. The Invention is designed for the purpose of relieving the eyes
of the healds and also the warps from strain at the time of shedding.
This part of the improvement consists in the arrangement and action of
a novel form of vibrator, that is supported by two levers situated on
either side of the loom having their fulcra at points where the ordinary
vibrator is placed. The opposite ends of these levers' support a rod upon
which is arranged a series of bent wires that are through the medium
of an eccentric on the crank shaft, and the afore-mentioned levers caused
to rise and fall, and also to have during this rise and fall a lateral motion
given to them by a tappet and spring, the effect of which when the
"shed" is forming causes the wires to become inserted above the warps

page_text: "
of the under portion of the "shed so as to draw them down and out of
contact with the eyes of the healds when the "shed" is fully open and
at the time the greatest strain would be upon the eyes.
Secondly. The novelty of the Invention consists in projecting a lever
from each of the crank arms to a point in front of the “slay" and
which are designed to support a rod immediately above the open "shed"
and parallel with the "reed." At a portion of these levers directly behind
the "reed" a short lever is caused to project, terminating with a finger
or tongue designed to act upon the "frog," thus, when the "slay" is
beating forward the action of these levers is free, allowing the tongue to
remain in its normal position during which the parallel bar in front of
the "reed" is caused to descend, the tongue passing free over the "frog,"
but in the event of the shuttle stopping midway when picking between
the boxes and in the shed, or when any other impediment of a like
nature should occur the free descent of the parallel bar is arrested, which
at once lowers the tongue of the stop rod or lever and causes it to come
into contact with the "frog" and knock off the loom. This parallel rod
in front of the reed also prevents the shuttle flying out and damaging.|
the warps.
Thirdly. The improvements are designed to reduce the frictional
contact of the shuttle against the swell, and consists in providing the
front of the swell at the point where the first contact of the shuttle
therewith takes place with a bowl, thereby preventing the violent
frictional contact now experienced between the shuttle and the swell
when entering the box, the shuttle after its first contact and when in.
the box being firmly retained by the pressure of the swell as at present
without contact with the bowl.
:
Fourthly. The Invention is designed to check the force of the "picker"
when picking or being propelled by the "picking stick," and consists
in giving a positive retarding motion to the advance of the picker in
licu of being retarded or checked by a spring or stationary stop or
check strap as heretofore, and consists in attaching the check strap to a
suitable moving part of the loom such, for example, as the cotter of the
crank arm.
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Lastly. The Invention relates to certain improvements, in the shuttle
of looms, and consists, first, in providing the shank of the shuttle peg
with a glass bush, which is designed to work with reduced friction upon
the pin forming the fulcrum of the peg, and, secondly, to an improved

page_text: arrangement of an adjustable or expanding peg that will readily adjust
itself to any size of cop hole and also prevent the cop when in an hori-
zontal position in the shuttle from being knocked off. The improvement
consists in constructing the peg of two horizontal parts the under one of
which is provided with an inclined surface at its tip or extremity, or the
whole or a portion of their lengths upon which the end of the upper or
other portion of the peg rests, and which is the shorter length, thus,
when the peg is in a perpendicular position for having the cop placed
thereon, the upper part thereof is free and in its lowest position upon
the inclined surface, but when, being lowered into an horizontal position
with the cop upon it, it is caused to slide upon the incline and so become
expanded so as to fit tightly in the hole of the cop thereby firmly.
retaining the same upon it so long as it remains in an horizontal position
or as an equivalent the peg may be formed similar to the levers of a
pair of shears that will when in their perpendicular position lie close
together and in their least compass, but when in their horizontal position
at the time the cop is placed upon them will expand and so firmly retain
the cop and prevent its being knocked off.