IMPROVE- MENTS IN LOOMS FOR WEAVING
Year: 1883

page_text: 4
LETTERS PATENT to James Hodgson and Samuel Greenwood both of Brearley
near Luddenden Foot in the County of York, for an Invention of "IMPROVE-
MENTS IN LOOMS FOR WEAVING"
PROVISIONAL SPECIFICATION left by the said James Hodgson and Samuel
Greenwood at the Office of the Commissioners of Patents on the 24th March
1883.
JAMES HODGSON and SAMUEL GREENWOOD both of Brearley near Luddenden
Foot in the County of York. IMPROVEMENTS IN LOOMS FOR WEAVING
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"
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Our invention relates to looms for weaving checks and fancy patterns and is
particularly applicable to the motion known as Diggles motion": by our
improvements we are enabled to run the loom quicker and in case of the weft
breaking the notion is thrown out of gear and the weaver can find the " pick "
and then throw the shuttle through the shed in the same direction that the weft
is going without turning back the loom.
3
In performing our Invention we make the chain barrel separate from the boss of
the star wheel and we make ratchet teeth or other projections on the adjoining
faces of both pieces: the chain barrel has a groove turned in its periphery to which
a lever is connected for the purpose of sliding the chain barrel into or out of gear
with the star wheel. :
The clutch lever is connected near the bottom of the loom to a bell crank lever
working on a stud: the: other end of the bell crank lever is connected to a rod
secured to a shaft working in bearings in the breast bean and a hook or finger is
secured to this shaft which catches over the weft fork lever in such manner that
when the weft breaks, the weft fork lever releases a catch and operates the hook,
rods and levers so as to disengage the chain barrel from the star wheel: this stops
the barrel and chain and the check motion or change of shuttles.
:

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said James Hodgson and Samuel Greenwood in the Great Seal
Patent Office on the 24th September 1883.
JAMES HODGSON and SAMUEL GREENWOOD, both of Brearley, near Luddenden
Foot, in the County of York. "IMPROVEMENTS IN LOOMS FOR WEAVING
"
"
Our invention relates to looms for weaving checks and fancy patterns and is
particularly applicable to the motion known as Diggles motion": by our
improvements we are enabled to run the loom quicker and in case of the weft
breaking the motion is thrown out of gear and the weaver can find the "pick
-and then throw the shuttle through the shed in the same direction that the weft is
.going without turning back the loom.
"
In performing our Invention we make the chain barrel separate from the boss of
the star wheel and we make ratchet teeth or other projections on the adjoining
faces of both pieces: the chain barrel has a groove turned in its periphery to
which a lever is connected for the purpose of sliding the chain barrel into or out of
gear with the star wheel.
The clutch lever is connected near the bottom of the loom to a bell crank lever
working on a stud: the other end of the bell crank lever is connected to a rod
secured to a shaft working in bearings in the breast beam and a hook or finger is
secured to this shaft which catches over the weft fork lever in such manner that
when the weft breaks, the weft fork lever releases a catch and operates the hook
rods and levers so as to disengage the chain barrel from the star wheel: this stops
the barrel and chain and the check motion or change of shuttles.
And in order that our Invention may be fully understood and readily carried
into effect we will proceed to describe the accompanying two Sheets of Drawings
reference being had to the figures and letters marked thereon.
Fig. 1 is an end and Fig. 2 a front elevation of a loom fitted with our
Improvements.
a a are the sides of the loom and bis the chain barrel made separate from the
boss of the star wheel c-these pieces form a clutch: the chain barrel b has a
groove b turned in its periphery to which a lever d is connected for the purpose
of sliding the chain barrel b into or out of gear with the star wheel c: the clutch
lever d is pivoted at d¹ and the lower end is connected by a rod d² to a bell crank
lever e pivoted at e¹ to a bracket secured to the loom frame: the other end of the
bell crank lever e is connected by a rod e² to a lever f which is secured to one end
of a shaft g working in bearings in the breast beam: to the other end of the
shaft g is secured a hook or finger which catches over the weft fork lever i.
When the weft breaks the weft fork lever i is released in the usual manner and
the hook or finger h, being set at liberty partially turns the shaft g moves the
"lever frode and causes the bell crank lever e to turn on its pivot e¹. The bell
crank lever e moves the rod d² and causes the clutch lever d to disengage the
chain barrel b from the star wheel c; the barrel and chain and the check motion
or change of shuttles is thus stopped.
The setting up motion is connected by levers
manner that the motion is stopped at the same
star wheel are disengaged from one another.
and catches to the shaft g in such
moment that the chain barrel and
We have shown the chain barrel and star wheel made in two pieces with
ratchet teeth to form a clutch but an independent clutch could be used to connect
them.

page_text: By our Improvements the following advantages are secured when weaving
checks or fancy goods :-In case of the weft breaking or being short of weft, the
weft fork lever releases the finger which disengages the chain barrel from the
star wheel and at the same moment stops the setting up motion and prevents any
more warp being taken up until the pick is found; the weaver can then start the
loom without the necessity of slackening the warp.
Another advantage is that the weaver is not obliged to turn the loom back to
find the pick but can put on or start the loom and run it in the proper direction
until the pick is found.
Having stated the nature of our Invention and described the manner of
performing the same
We declare that we claim
1. The improvements in looms for weaving, substantially as herein shown and
described.
2. In a loom for weaving, making the chain barrel and star wheel in separate
pieces substantially in the manner and for the purposes herein shown and
described.
In witness whereof I the said James Hodgson for myself and on behalf of the
said Samuel Greenwood have hereunto set my hand and seal this twenty second
day of September One thousand eight hundred and eighty three
JAMES HODGSON