Improved Needle-segment for Combing-machines and the like.
Year: 1894

page_text: Date of Application, 5th July, 1894-Accepted, 11th Aug., 1894
COMPLETE SPECIFICATION.
Improved Needle-segment for Combing-machines and the like.
We, GEORGES FROMм, and JOSEPH ROLL, of the Firm of Fromm and Roll, of
Mülhausen, in the Province of Alsace, in the Empire of Germany, 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:—
This invention relates to needle-segments for combing-machines and has for its.
object to allow the needles which are inserted in rows of holes in such segments to
be closely spaced. For this purpose the comb needles carried by one and the
same segment are made of different shapes, whereby the following advantages are
obtained as compared with the fluted comb-bars with needles soldered thereto, and.
also as compared with comb-bars with inserted needles of uniform shape, viz.-
(a) greater neatness in the combed material;
(6) diminished breakage of fibres; and
(c) the capability of using stronger needles than can be used with comb-bars.
having needles soldered thereon. These stronger needles have a much greater
power of resistance, and thus occasion a very considerable diminution in repairs.
and consequent interruption of the combing operation.
According therefore to this invention the needles which vary as regards their
shape on one and the same segment, are arranged as follows:-
One half or a little more than half of the rows of comb-bars or needle-bars are
studded in the ordinary manner with round needles tapering outwardly to a sharp
point, whilst of the remaining rows of comb-bars, one portion, that is to say the
greater portion, are studded with flat sided needles which keep their flat form from
top to bottom and the remaining, or smaller, portion are studded with needles in.
which the flat form passes into a round or conical form.
In the accompanying drawings,
Fig. 1 illustrates by way of example a needle segment having 16 needle bars.
studded with needles of varying forms according to this invention. As shown,.
beginning at the left hand forward edge of the segment, the rows numbered 1 to 9
are composed of inserted needles which are of the ordinary round form in cross
section. These needles one of which is shown separately in side elevation and
cross section in Fig. 2, taper outwardly to a sharp point in such a manner that the
shank or part of the needle embedded in the needle bar is of the same round form.
in cross section but of gradually decreasing area, as that part of the needle which
projects beyond the needle. bar. The needles of the rows 10 to 14 are however
each of flat form, such that a cross section taken through the point, that is to say,.
through the needle above the bar in which it is fixed, will show, as represented in
Fig. 3, a rectangular form similar to that of the needle shank embedded in the said
bar. The third group of needles composed of the rows 15 and 16, differs from the
second group of needles composed of the rows 10 to 14, in that in the said third
group the shank of each needle embedded in the needle bar retains a rectangular
cross-sectional form, whilst the point of the needle is of round or circular form in
cross section, as shown in Fig. 4.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
:-
A needle segment for a combing machine or the like, wherein the needle bars
are provided with rows of inserted needles of different cross-sectional forms, a large-

page_text: number of the said rows being composed of needles of circular form in cross-section
throughout their length followed by other rows composed of needles having flat
sides and of rectangular form in cross-section throughout their length, these rows
being in turn followed by other rows.composed of needles having shanks of flat
or rectangular form in cross-section and points of circular form in cross-section
substantially as herein described for the purpose specified.
Dated this 5th day of July.1894.
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant..