Improvements in or relating to the Needles of Jacquards.
Year: 1899

page_text: Improvements in or relating to the Needles of Jacquards.
I, WILLIAM TRUSWELL MARTIN, of Newdigate Street, in the City of Nottingham,
Machinist, do hereby declare the nature of this invention to be as follows:
This invention relates to improvements in both the vertical and horizontal
needles of jacquards, and it has for its object the strengthening of such needles
at certain points, and more especially where they are subject to wear, or for
example in a horizontal needle, at the point where the slot or eye is formed for
the reception of the retaining wire.
The body of the needles at the present time are of as large a diameter or cross
section throughout as the present set out, or the disposition of the said needles
relatively to each other, will permit, but although for the reasons stated the main
part of the needle cannot be made of larger diameter or cross section, we find that
certain parts in the length of a needle are not restricted to the same extent by
the set out, but may be made of a larger diameter or cross section and thus
strengthened.
According to my invention instead of forming the needles of wire of uniform
gauge throughout as heretofore, each needle is made from a length of wire which
may be for the greater part of its length of the ordinary gauge, but is of a
larger gauge or diameter at the point or points where the strength is required in
the finished needle, or at any other point where there is room for such enlarge-
ment.
.
In a vertical or hooked needle, the points which are most subject to wear, are
the hook at the upper end which engages with the grid blade or knife, and the
extension on the lower. loop, which is continually dropping on the bottom needle
plate.
Such needles I form from a piece of wire of the correct length, the main part
of which is of the maximum gauge allowed by the set out, whilst its two ends
are of an enlarged gauge or cross section. When this length of wire is bent into
the requisite form, the enlarged part at one end forms the hook, whilst that at
the other forms the extension of the lower loop.
As there is plenty of room at these two points for the enlargements the needles
will work without jamming, but if preferred these enlarged points may be sub-
sequently flattened, or stamped into a flat or approximately oval form.
I form the horizontal needles from a piece of wire having an enlargement at
the point where the slot is formed in the finished needle for the retaining wire.
This enlarged part is first flattened by stamping, then the slot nunched and
finished in the usual manner.
By this means the point where the slot is formed may be made of the same
strength as the other part of the needle, instead of being a source of weakness.
In some cases the point where the crank is formed on a horizontal needle, may
.

page_text: be of a larger gauge or cross section as described, in order to increase the wear-
ing surface at this point.
11:
L
1000
BOULT & WADE,
Agents for the Applicant.
Improvements in or relating to the Needles of Jacquards.
I, WILLIAM TRUSWELL MARTIN, of Newdigate Street, in the City of Nottingham,
Machinist, 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:--
This invention relates to improvements in both the vertical and horizontal
needles of jacquards, and it has for its object the strengthening of such needles
at certain points, and more especially where they are subject to wear, or for
example in a horizontal needle, at the point where the slot or eye is formed for
the reception of the retaining wire.
The needles at the present time are as large a diameter or cross section through-
out their length, as the present set out, or the disposition of the needles relatively
to each other when placed in a jacquard, will permit, but although for the reasons
stated, the main part of the needles cannot be made of larger diameter or cross
section, certain parts in the length of a needle are not restricted to the same
extent by the set out, but may be made of a larger diameter or cross section and
thus strengthened.
The invention will be best understood by reference to the accompanying.
drawings, in which
Fig. 1 is a view showing a vertical needle in the first stage of its manufacture,
and
Fig. 2 a view of a finished needle made according to my invention.
Fig. 3 is a view showing one end of a horizontal needle in the first stage of
its manufacture, and
Figs. 4 and 5 views of the same part of a finished needle.
Fig. 6 is a view showing one end of a horizontal needle in the first stage of
its manufacture, and
Fig. 7 a corresponding view of a finished needle, showing a modification.
Like letters indicate like parts throughout the drawings.
According to my invention instead of forming needles of wire of uniform
gauge throughout as heretofore, each needle is made from a length of wire, which
may be for the greater part of its length of the ordinary gauge, but is made of a
larger gauge or diameter at the point or points where the strength is required in
the finished needle, or at any other point where there is room for such enlarge-
ment.
In a vertical or hooked needle the points which are most subject to wear, are
the hook at the upper end, which engages with the grid blade or knife, and the
extension on the lower loop, which is continually dropping on the bottom needle
plate.
Such needles I form from a piece of wire of the requisite length, the main
part A (see Fig. 1) of which is of the maximum gauge allowed by the set out,.
whilst its upper end B and lower end C are of a larger diameter or cross section
as shown.
To obtain lengths of wire of this form, I take a piece of wire of the same

page_text: gauge as the part B, and reduce the part A preferably by drawing the latter
through dies, or passing it through suitable rolls, until it is reduced to the
requisite gauge.
The enlarged part B is bent as shown in Fig. 3 to form the hook, whilst the
lower part forms the extension on the lower hook D and as there is plenty of
room at these points for the enlarged parts to work without jamming, they may
be left as shown, or be flattened or stamped into a flat or approximately oval form
as preferred.
I form the horizontal needles from a piece of wire of the requisite length, the
main parts E E (see Fig. 3) and end E¹ of which are the maximum gauge allowed
by the set out, and with enlarged parts F F¹ at the points where the slot is to be
formed for the retaining wire, and the crank to engage with the vertical wire
respectively. The parts E E¹ are preferably reduced in the manner previously
described.
The part F is first flattened by stamping, then the slot G (see Figs. 4 and 5)
punched as shown, in the usual manner.
By this means the part F where the slot G is formed may be of the same
strength as the other parts of the needle, instead of being a source of weakness.
The part F is formed into a crank as shown.
If preferred horizontal needles may be made as shown in Figs. 6 and 7. In
this case the needle are formed from a length of wire shown in Fig. 6 having an
enlarged part F extending from the point where the slot G is formed to the end
of the needle. This form of needle requires less labour to manufacture, but is
not so convenient as the form shown in Figs. 4 and 5.
Instead of strengthening each of the needles at two points as described, I may
strengthen each of them at one point only, for example, I may strength the ver-
tical needle at the hook, and the horizontal needle at the point where the slot is
formed, these being the points which are most subject to wear.
.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is:-
1. Forming one or more parts of a jacquard needle of a greater diameter or
cross section than the main part substantially as described.
2. A jacquard needle having the part B or hook of a greater diameter or cross
section than the main part substantially as described.
3. A jacquard needle having the part B or hook and the extension C on the
lower loop D of a greater diameter or cross section than the main part sub-
stantially as described.
4. Forming a slotted or horizontal jacquard needle from a length of wire which
is at the point where the slot is to be formed of a greater diameter or cross section
than the main part substantially as described.
5. A jacquard needle in which the slotted part is formed from an enlargement
of or a part of greater diameter or cross section than the main part substantially
as described.
6. A jacquard needle in which the slotted and cranked parts are formed from
enlargements of or parts of greater diameter or cross section than the main part
substantially as described.
7. Jacquard needles manufactured substantially as described and illustrated
in Figs. 1 and 2, Figs. 3-4 and 5, and Figs. 6 and 7 of the accompanying
drawings.
Dalal +1
...] 1
T1
1000
VILLIAM TRUSWELL MARTIN.
Boult, Wade & Kilburn,
Agents for the Applicant.