An Improved Needle Adapted for Sewing Leather and other Materials.
Year: 1887

page_text: Date of Application, 13th Dec., 1887
Complete Specification Left, 6th Sept., 1888
Complete Specification Accepted, 12th Oct., 1888
PROVISIONAL SPECIFICATION.
An Improved Needle Adapted for Sewing Leather and other
Materials.
1, OTTO HEYNOLD of Luckau in the Empire of Germany Manufacturer do hereby
declare the nature of this invention to be as follows:-
This invention consists in an improved needle suitable for sewing leather and other
more or less stiff or tenacious material. The stem of the needle is slit longitudinally
from its rear end to a certain distance towards the point, the two parts of the needle
tending to spread slightly laterally so that the slit widens slightly towards the rear
end or heel of the needle-one of the branches of the needle carries a projection lying
towards a suitable recess in the other, so that when the branches are pressed together,
as for instance by the passage of the needle through the material, the said projection
enters the recess and thread or the like previously introduced between the branches is
held fast during the passage of the needle. The needle may likewise be provided
with depressed hollowings adapted to receive a knot on the thread and grasp the saine
during the passage of the needle. The rear end or heel of the needle is preferably
flat, or dressed square to the axis of the needle stem for greater convenience in
driving the needle through the material. The rear end of the needle may likewise
be adapted to fit loosely into a socket in a suitable handle and so be operated
somewhat as an awl.
,

page_text: COMPLETE SPECIFICATION.
An Improved Needle Adapted for Sewing Leather and other
Materials.
1 OTTO HEYNOLD of Lucka in the Empire of Germany Manufacturer 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 consists in an improved needle suitable for sewing leather and other
more or less stiff or tenacious material. The stem of the needle is slit longitudinally
from its rear end to a certain distance towards the point, the two parts of the needle
tending to spread slightly laterally so that the slit widens slightly towards the rear
end or heel of the needle. One of the branches of the needle carries a projection lying
towards a suitable recess in the other so that when the branches are pressed together
as for instance by the passage of the needle through the material the said projection
enters the recess and thread or like, previously introduced between the branches is
held fast during the passage of the needle. The needle may likewise be provided with
depressed hollowings adapted to receive a knot on the thread and grasp the same
during the passage of the needle. The rear end or heel of the needle is preferably
flat or dressed square to the axis of the needlestem for greater convenience in
driving the needle through the material. The rear end of the needle may likewise
be adapted to fit loosely into a socket in a suitable handle and so be operated somewhat
as an awl.
Reference being made to the accompanying drawings
Fig. 1 illustrates the improved needle in use.
Fig. 2 is a longitudinal section thereof on line
Fig. 3 is a plan view, and
Fig. 3.
Figs. 4 &are plan and end views respectively of a modification.
N is the needle, S the slit therein made as described above; i being a projecting pin
on one face, the corresponding slot in the other.
In Figs. 4 and 5, this pin and slot are replaced by the tongues on the rear end of
one of the arms of the needle projecting into recesses in the other arm.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is.
1. A needle having brancbing spring arms forming between them an open slot for
reception of the thread or the like.
2. A needle having branching spring arms forming between them a slot, a pin or
projection on one arm and a slot or recess in the other in combination for the purpose
set forth.
Data thin l ...
11000
Dated this 241,
day of September 1988.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C.,
Agents to Applicant.