Improvements in Looms for Weaving Fancy Patterns.
Year: 1893

page_text: Date of Application, 11th Nov., 1893
Complete Specification Left, 2nd Aug., 1894-Accepted, 15th Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in Looms for Weaving Fancy Patterns.
We, JOHN HALL and ROBERT HALL, of the Firm of Robert Hall and Sons,
and JOHN HOWARD HALL, all of the Hope Foundry, Bury, in the County of
Lancaster, Textile Engineers, do hereby declare the nature of this invention to be
as follows:-
Our invention relates to the pattern motion of looms for weaving fancy patterns
with or without cross borders, and the chief object of our invention is to enable
long lengths of such patterns to be woven with a very short pattern chain.
Our improved pattern motion is carried as usual by the frame of the shuttle
motion the shuttles being governed by two ordinary needles acted upon by the
reciprocating pattern chain; between these needles or to one side of them is a third
needle which by means of an indicating chain and barrel controls the direction of
motion of the pattern barrel and its pattern chain.
When the loom is in motion and a blank on a card comes opposite and pushes
back the third needle it moves an elbow lever one end of which is connected to a
star wheel fitted to slide upon a stud, and moves it into the path of a revolving
striker which turns it; in the face of this star wheel projects a pin secured to an
indicating chain barrel mounted on the stud referred to, so as to turn the barrel
when the sliding star wheel is turned.
When the indicating chain barrel turns, its chain acts upon an elbow lever which
is arranged to slide a spur wheel preferably mounted on the stud on which the
pattern chain barrel oscillates. This sliding spur wheel carries a projection on
each of its sides, one of which projections is arranged to act upon and turn a star
wheel secured at the end of the pattern chain barrel, and the other projection acts
upon a star wheel carried by a stud secured to the oscillating frame of the pattern
barrel, and to this star wheel is secured a spur pinion gearing into a pinion secured
to the chain barrel so that the pattern chain barrel is caused to turn in either
direction by means of the sliding spur wheel which conveys motion to it by one
projection or the other.
To weave a handkerchief with a cross border we punch the cards for one repeat
of the centre pattern and one repeat of the border pattern; if however the patterns
are what are known as turn over patterns the chain need only be one half the
length of the pattern.
In starting to weave the handkerchief the chain is set for the border and if for
a long border the chain would be punched so as to push back the third needle
thereby sliding the star wheel into the path of its striker and so turning the
indicating chain barrel one tooth to bring a peg on the chain after a blank,
or vice versa under the pivoted lever and actuate it so as to reverse the rotatory
motion of the oscillating pattern chain barrel and this reversing motion of the
pattern barrel continues until the cross border is finished.
The indicating chain is so pegged that when this has been done two pegs or two
blanks follow one another and this allows the pattern barrel to proceed in the same
direction which changes the chain to weave the centre pattern the indicating chain
making the necessary changes for reversing the pattern barrel and also for weaving
the cross borders where required.
Dated this 10th day of November 1808.
H. B. BARLOW & GILLETT,
Agents for Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Looms for Weaving Fancy Patterns.
We, JOHN HALL and ROBERT HALL, of the Firm of Robert Hall and Sons,
and JOHN HOWARD HALL, all of the Hope Foundry, Bury, in the County of
Lancaster, Textile Engineers, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
Our invention relates to the pattern motion of looms for weaving fancy patterns
with or without cross borders, and the chief object of our invention is to enable
long lengths of such patterns to be woven with a very short pattern chain.
Our improved pattern motion is carried as usual by the frame of the shuttle
motion the shuttles being governed by two ordinary needles acted upon by the
reciprocating pattern chain; between these needles or to one side of them is a
third needle which by means of an indicating chain and barrel controls the direction
of motion of the pattern barrel and its pattern chain.
And in order that our invention may be fully understood and readily carried into
effect we will describe the accompanying two sheets of drawings reference being
had to the figures and letters marked thereon.
Fig. 1 is a plan and Fig. 2 a back view of part of a loom fitted with our improved
pattern motion for weaving fancy patterns.
In the drawings,- -a represents part of the frame of the shuttle motion by which
our improved pattern motion is carried, is the reciprocating or oscillating_barrel
of the pattern chain, not shown; the barrel b is carried in a frame c mounted upon
a stud c¹ on which a spur wheel c is fitted loosely and this wheel is driven con-
tinuously from the gear on the cam wheel shaft b' by means of a carrier b
mounted on a stud b; d d are the usual two needles (for a four shuttle motion)
acted upon by the pattern chain on the barrel for governing the movements of
the shuttles, and is a third needle which we employ according to our improve-
ments and which is actuated by the pattern chain; the third needle e has pivoted
to it one arm of an elbow lever g which is fulcrumed on a stud g' the other end of
the elbow lever g engaging the grooved boss of a star wheel fitted to slide on a
stud on which is fixed the barrel f' of an indicating chain f
When the loom is in motion and a blank on a card of the pattern chain comes
opposite and pushes back the third needle e out of the position shown in Fig. 1, it
moves the elbow lever 9 and star wheel into the path of a revolving striker i
mounted on the cam wheel shaft and this striker i turns the star wheel h part of
a revolution; a pin, not shown, secured to the barrel projects into the face of the
star wheel and thus the partial rotation of this wheel is simultaneously imparted
to the barrel f' and indicating chain f. The pegs on this chain act upon a stud j
carried upon one arm of an elbow lever j pivoted on a stud 2; the other arm of
this lever is slotted at j³ and a pin secured to a transverse rod k rests in
this slot.
.
Fig. 2 represents a peg on the chain fraising the stud j¹ thereby moving back
the rod k against the resistance of a coiled spring from the right to the left
hand. A lever / secured to this rod k is forked at one end and enters a groove in
the boss of the spur wheel and as the rod k is moved the wheel c' is likewise
moved into the position shown so as to bring a projection on its side against a
star or gear wheel m secured upon the axle of the pattern chain barrel b and cause
the barrel to partially rotate in one direction until the indicating chain / brings a
plain lag under the bowl and allows it to drop, then the weight of the parts
aided by the spring on the rod k forces the rod back and by the lever / slides
the wheel on its stud c' and brings a projection c* on its other side into gear with
a star or gear wheel n mounted upon a stud n'; the wheel n gears into a wheel o

page_text: keyed upon the end of the pattern chain barrel b and turns it in the reverse
direction until the next change is given by a pegged lag on the indicating chain f
succeeding a plain lag as described.
To weave a handkerchief with a cross border we punch the pattern card for one
repeat of the centre pattern and one repeat of the border pattern; if however the
patterns are what are known as turn over patterns the pattern chain need only be
one half the length of the pattern.
In starting to weave the handkerchief the pattern chain is set for the border and
if for a long border the chain would be punched so as to put back the third
needle e thereby sliding the star wheel into the path of its striker i and so
turning the indicating chain barrel f' one tooth to bring a peg on the chain fafter
a blank, or vice versa, under the pivoted lever j and actuate it so as to reverse
the rotatory motion of the oscillating pattern chain barrel b as described and
this reversing motion of the pattern barrel continues until the cross border is
finished.
The indicating chain fis so pegged that when this has been done two pegs or
two blanks follow one another and this allows the pattern barrel to proceed in the
same direction which changes the chain to weave the centre pattern the indicating
chain making the necessary changes for reversing the pattern barrel and also for
weaving the cross borders where required.
We have shown and described our improvements as applied to a four shuttle
motion but it will be understood that in applying the invention to a two shuttle
motion only a single needle d would be required for the shuttles and an additional
needle e to actuate the indicating chain and in like manner for a six shuttle motion
three needles d and one needle e would be required.
. Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The combination with the ordinary chain barrel, pattern chain, and its needle
or needles and an additional needle and its connections for imparting an inter-
mittent rotary motion to an indicating barrel and chain, of connections controlled
by the indicating chain to slide a driven gear on the stud on which the pattern
chain barrel frame oscillates so as to cause onc or other of two projections
placed one on each side of said gear to engage a star or toothed wheel and
thereby turn the pattern chain barrel either forward or backward substantially
as and for the purposes herein described with reference to the accompanying
drawings.
2. The combination and general arrangement of parts for rotating and reversing
the direction of rotation of the pattern barrel and its chain from the indicating
chain and barrel substantially as and for the purposes herein described and
illustrated.
Dated thin lot J of A 1004
о
H. B. BARLOW & GILLETT,
17, St. Ann's Square, Manchester, Agents for Applicants.