IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1884

page_text: We, DAVID BAILEY, of Clement Street, Power Loom Tuner, BEN BERRY, of
Greenwood Street, Power Loom Tuner, SQUIRE STEAD, of Horn Street, Power
Loom Tuner, and ALFRED GOMERSALL, of Delph Hill, Blacksmith, all in Halifax,
Yorkshire, do hereby declare the nature of our invention for "IMPROVEMENTS IN
LOOMS FOR WEAVING," to be as follows:-
The first part of our Invention has reference to the "weigh-balk" or beam used
in woollen looms, and employed for raising and lowering the jack-books in the
Jacquard, whereby the shed is opened and closed. In the working of these Jacquards
it frequently happens that some of the books get locked fast, from a variety of
causes, and become immoveable either up or down, and as the "weigh-balk" has a
positive and continuous up and down motion given to it, it follows that in such
cases something must break, and most frequently it is the "weigh-balk.". To
prevent this is the object of our Invention, which we accomplish by making the
weigh-balk in two parts, and connecting them together by a strong spiral spring,
attached to lugs cast on suitable places on each part of the weigh beain, so that
when the Jacquard is in proper working order, and none of the parts locked, the
jointed beam works as one casting, but should the jack-hooks get locked from any
cause, the spiral spring gives way, allowing the weigh-balk to bend instead of
breaking as is now the case, whereby a considerable saving is effected, not only in
the cost of the casting, but in the loom not having to stand until the broken parts
are repaired.
Secondly. Our Invention has reference to the shuttle boxes, and consists in the
application of an improvement for immediately stopping the loom when a trap'
"
is formed, or when two shuttles have met in one shuttle box, in consequence of
Bomething breaking or being defective in the picking parts.
To carry out this part of our Invention we attach a small casting or loose part
onto the shuttle swell, at the back of the box, which loose part is connected to a
spiral spring for forcing the said loose part on the swell, as hereinafter explained.
Instead of the usual stop-rod finger resting on the back of the shuttle swell, as is
customary, we arrange for it to rest in contact with the sliding part, so that when
the loom is working satisfactorily, the point of the stop-rod finger is clear of the
knocking-off frog. When however any of the picking parts fail to act, and the
רג ...מ
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page_text: shuttle is not sent out of the box, the presence of the shuttle therein, causes the
swell to stand further out, so that when the lathe sword carries the shuttle boxes
back into the loom, the sliding part comes into contact with a projection or friction
pulley, which causes the said loose part to slide endwise, and thereby release the
stop-rod finger, allowing the point thereof to drop, so that on the next beat up of
the lathe, it comes in contact with the nocking-off frog, and the loom stopped
thereby, consequently "traps" are prevented. As soon as the pressure of the stop
rod finger is removed off the shuttle swell, the spiral spring forces the sliding part
back into its place again ready for the next operation.

page_text: COMPLETE SPECIFICATION.
We DAVID BAILEY of Clement Street, BEN BERRY, Greenwood Street, SQUIRE
STEAD Horn Street, Power Loom Tuners, and ALFRED GOMERSALL, Delph Hill,
Blacksmith all in Halifax, Yorkshire do hereby declare the nature of our invention
for "IMPROVEMENTS IN LOOMS FOR WEAVING" and in what manner the same is
to be performed, to be particularly described and ascertained in and by the following
statement:-
"
The first part of our Invention has reference to the "
weigh balk or beam used
in woollen looins, and employed for raising and lowering the jack hooks in the
Jacquard whereby the shed is opened and closed.
In the working of these Jacquards it frequently happens that some of the hooks
get locked fast from a variety of causes, and become immoveable, either up or
down, and as the "weigh balk" has a positive and continuous up and down motion
given to it, it follows that in such cases something must break and most frequently,
it is the "weigh balk."
To prevent this is the object of our Invention which we accomplish by making
the "weigh balks" in two parts.
"
In order that our Invention may be better understood we herein give referenco
to the accompanying sheet of drawings wherein Fig 1 is clevation of a "weigh
balk" constructed according to our Invention. As stated above the "weigh balk
is made in two parts A and B but connected together by stud a upon which both
parts can oscillate like a hinge. Each part of the beam is provided with projections b
and c which are connected by a strong spiral spring C. The beam works upon a
stud d and when all is satisfactory the said compound beam works as one casting,
but should the jack hooks get locked from any cause the spiral spring C gives way
allowing one half of the beam to bend or oscillate upon the stud a by which means
a breakage of the beam would not take place as is the case when the beam is made
in one casting, consequently a saving is effected not only in the cost of the casting
but in the loom not having to stop until the broken beam is repaired or replaced by
a new one.
Secondly. Our invention has reference to the shuttle boxes and consists in the
application of an improvement for immediately stopping the loom when a "trap'
is formed or when two shuttles have met in one shuttle box in consequence of
something breaking or being defective in the picking parts.
This part of our Invention is shewn in Fig 2 which is end view of so much of a
loom as is necessary to illustrate our improvements, and Fig 3 is plan view of
same. D is framing of loom and E is the end of the shuttle box. F is the usual
shuttle box swell well known in every loom, and upon this swell we place a loose
part G, capable of sliding endwise upon the said swell for purposes hereinafter
mentioned. I is the stop, rod and J the stop rod finger of ordinary construction,
but instead of the said finger being in contact with the swell as is customary it
rests against the sliding casting G so that when the loom is working satisfactorily
the point K on the stop rod is clear of the knocking off frog L.

page_text: If however any of the picking parts fail to act and the shuttle is not sent out of
the box the presence of the shuttle therein causes the swell F to stand further out
so that when the lathe sword carries the shuttle boxes back again into the loom,
the projection H on the sliding part G comes into contact with the friction pulley M
supported by a stud which causes the said loose part to slide endwise in the
direction of the arrow and out of contact with the stop rod finger, which on being
released allows the point K to drop as shewn in dotted lines so that on the next
beat up of the lathe the point K comes into contact with the knocking off frog and
the loom is stopped thereby, consequently "traps are prevented.
33
As soon as the pressure of the stop rod finger is removed off the shuttle swell the
spiral spring N forces the sliding part G back again into its place to be ready for
the next beat up of the lathe sword, so that whenever the shuttle fails to leave the
box a "
trap" would be prevented.
Instead of employing the sliding casting G we may form the stop rod finger in
two parts as shewn in Figs 4 and and be connected by a stud e so that as the
lathe beats up the point of the finger f would strike the friction roller M which
would cause the fore part of the finger to be thrown sideway as shewn in dotted
line Fig 5, the flat spring g forcing it back again when the point of the finger fleft
the pulley.
'
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same is to be performed, we declare that what
we claim is
Firstly The construction of the "weigh balk" of a loom in two parts substan-
tially as shewn in Fig 1.
Secondly The employment of the sliding casting G and pulley M or its
equivalent for preventing "traps as shewn in Figs 2 and 3.
"
Thirdly-The employment of the stop rod finger J made in two parts as shewn
in Figs 4 and 5 for purposes set forth.