Improvements in Loom Shuttles.
Year: 1892

page_text: Date of Application, 24th June, 1892
Complete Specification Left, 24th Mar., 1893-Accepted, 24th June, 1893
PROVISIONAL SPECIFICATION.
Improvements in Loom Shuttles.
We HENRY JACKSON of 233 Manchester Road Sudden, Overlooker, and
CHARLES HOLT of 57 Prince Street, Mill Manager, both of Rochdale and
County of Lancaster, do hereby declare the nature of this invention to be as
follows:-
Our invention relates to shuttles employed in connection with weaving looms.
The object of our invention being to obviate any slack or unnecessary length of
yarn between the shuttle eye and the edge of the cloth in order to avoid the
entanglement of the yarn with the picker at the off side of the loom, as is now the
case, but the yarn is maintained in a distended condition, also at the setting on side
a greater length of yarn is by our arrangement provided, by this means, too great a
tension having a tendency to break or snap the yarn as now frequently the case,
is obviated, also according to our arrangement we are enabled to prevent the cop
flying out of the shuttle as now frequently occurs.
We claim that by the use of our improved shuttle a firm and neat selvedge may
be formed on each side of the cloth.
According to our improvements we provide an eye or eyes or aperture or apertures
in any convenient position with relation to the centre of the shuttle being nearer
thereto than now adopted, the eye being further from the nose manifestly a shorter
length or proportion of yarn will be situate outside the shuttle, that is-between
the edge of the cloth and the shuttle eye-when at the off side of the loom, and
being of sufficient length to allow of the yarn being maintained rather in a distended
than in a slack state, and this without breakage, consequently when the shuttle is
located in the shuttle box at the other end of the "slay," or the setting on side,
the eye being further from the edge of the cloth than heretofore, the strain is
thereby lessened on the edge of the cloth, which hitherto tended to break the
same, which is very often the result, with shuttles as at present used, a suitable
tension of the yarn being thus effected at both sides of the cloth insures the
production of a firm and neat selvedge on each side thereof.
Another feature of our invention is the form of the space in which the cop is to
be inserted, being so formed according to our arrangement as to be taper or con-
verging at its extremity that in the event of the cop leaving the tongue when in
working position the nose thereof shall become wedged within the tapered extremity
of the slot or cop space in the shuttle, thus preventing its flying out or leaving
the tongue, and thus avoiding the obvious consequences which are well known,
such form also admits of a subsidiary feature, that is, that less of the material of
the shuttle being cut away than in the case of the ordinary shuttle, at the end near
to the nose, or at the end near to the extremity of the cop from which the weft is
withdrawn. The shuttle is practically balanced, that is both extremities thereof
being of equal weight or thereabout, whereby the "jumping" or lifting of one end
is obviated and the damage to the shed from such causes may be avoided.
.
Dated this 22nd day of June 1892.

page_text: annexed so that the portion of yarn intervening between the eyes band a. may
pass through a thoroughfare or passage for its length and thus between these points
and a. protected from damage or breakage we also form at the opposite side
an excressence d³ thus this extremity of the cop space or opening is contracted and
corresponds in form to the nose or extremity of the cop as seen in Fig. 1. and in
the event of a displacement from the tongue g. of the shuttle which may and does
often occur the cop may be prevented from "Hying out" or leaving the shuttle
tongue.
The advantages to be obtained by the use of our invention and its operation
when in use are as follows.
The eye a
being so situate as in the drawings illustrated manifestly there will
be at the offside of the loom a shorter length of weft between the eye a. than would
be the case were the eye a. situate nearer to the "tip" of the shuttle as is the
ordinary practice consequently when the shuttle is driven through the shed to
the other, opposite, or setting-on side conversely the length of weft between the
end or outside threads of the shed and the shuttle eye a. will obviously be longer
than would be the case were the eye a. nearer to the "tip" c and suitably so
according to the position of the eye a. with relation to the "tip" c thus the strain
on the weft at this side may be obviated and consequently the breakage of the
weft. By our arrangement of shuttle we approximately equalize the lengths of
weft intervening between the selvedges of the cloth and the eye a. we are enabled
by the reduction of slack so as not to come in contact with the picker on the off
side of the loom and the increase of length on the other or setting-on side of the
loom to produce a firm selvedge and to obviate breakage of the weft. The
remaining advantages arise from the provision of the parts and d³ or the form
of the extremity of the cop space which may be said to serve a triple purpose.
Firstly the formation of the passage 1. intervening between b. and a. Secondly
the prevention of the " flying out of the cop and Thirdly the balancing of the
shuttle whereby the "jumping or lifting of the shuttle may be obviated and
consequently the damage to the cloth or shed which may ensue from such causes.
3
"
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. In a shuttle for use in connection with looms for weaving the eye a so
situated with relation to the "tip" in any convenient position towards the
centre in combination with the excressence or the space-corresponding to
the form of the nose of the cop substantially as and for the purposes herein fully
set forth and described in the drawings hereunto annexed.
2. The form of the cop space at or near the cop nose as and for the purposes
herein fully set forth and described in the drawings hereunto annexed.
Dated this 23rd day of March 1893
HENRY JACKSON.
CHARLES HOLT.
J. H. Butterworth,
Rochdale, for the Applicants herein.