IMPROVEMENTS IN THE MANU- FACTURE OF NEEDLES
Year: 1877

page_text: LETTERS PATENT Maurice Demmer, Needle Manufacturer, of Inden, near Aix
la Chapelle, Germany, for the Invention of "IMPROVEMENTS IN THE MANU-
FACTURE OF NEEDLES."
Sealed the 26th March 1878, and dated the 3rd October 1877.
PROVISIONAL SPECIFICATION left by the said Maurice Demmer at the
Office of the Commissioners of Patents on the 3rd October 1877.
MAURICE DEMMER, Needle Manufacturer, of Inden, near Aix la Chapelle, Germany.
"IMPROVEMENTS IN THE MANUFACTURE OF NEEDLES."
The improvements referred to relate to large and small needles, such as are used
by packers, the feature of novelty being in the peculiar formation of the eye, which
is so slaped that whilst it facilitates threading, it likewise assists in maintaining
the cotton thread or other substance in the needle, and prevents the thread being
broken or cut, which is the main drawback to the eyes of needles at present used,
these eyes being generally round or oval; the sharp edges constantly cut the thread
by the continued friction of the thread and its tension.
These defects are obviated by my improved eye which is pierced with an aperture
forming three parts of a circle, and is continued towards the head of the needle in a
longitudinal manner, terminating at the apex in an acute agle, whilst this point is
met by an angular groove whose widest part commences from the head of the
needle and meets the apex of the eye, the lower portion of the semicircular opening
terminating in a groove somewhat similar in shape to that already described."
By so piercing the eyes the thread is held secure in the needle, there is no fear of
its being cut as there is no friction, and the central circular part facilitates
threading.

page_text: .
SPECIFICATION in pursuance of the. conditions of the Letters Patent filed
by the said Maurice Demmer in the Great Seal Patent Office on the 29th
March 1878.
'
MAURICE DEMMER, Needle Manufacturer, of Inden, near Aix la Chapelle, Germany.
"IMPROVEMENTS IN THE MANUFACTURE OF NEEDLES."
The improvements in needles herein referred to relate to small and large needles,
and such as are used for packing, and indeed any and every description of needle.
The feature of novelty being in the peculiar formation of the eye, which is so shaped
that whilst it facilitates threading, it likewise assists in maintaining the cotton,
thread, or other substance in the needle, and prevents the thread being broken or
cut, which is the main drawback to the eyes of needles as at present used, these eyes
being generally round or oval; the sharp edges constantly cut the thread by the
continued friction of the thread and its tension.
These defects are obviated by my improved eye, which is pierced with an aperture
forming three parts of a circle, and is continued upwards towards the head of the
needle in a longitudinal manner, terminating at the apex in an acute angle,
whilst this point is met by an angular groove, whose widest part commences
from the head of the needle and meets the apex of the eye, the lower portion
of the semicircular opening terminating in a groove somewhat similar in shape to
that already described.
By. so piercing the eyes of needles the thread is held secure in the needle,
there is no fear of its being cut as there is no friction, and the central circular part
facilitates threading.
Fig. 1 in the accompanying Drawings represents an ordinary needle with my
improved eye.
Fig. 2 is a large sized needle for wool or worsted; Fig. 3 is a packing needle,
Fig. 4 being the head portion of the needle enlarged, to show the peculiar mode of
cutting the eye.
Although I have described the central part of the eye as being circular, and
although I prefer this to other forms, still this portion of the eye may be oval or
any other formi.
The advantages of this description of eye over that in present use, are that the
thread is not cut or broken by the friction occasioned by the constant tension of the
thread whilst working.
The needle once thread admits of using up the entire length of the thread
without fear of its leaving the needle; for instance, the thread once passed through
the large or central aperture, it fixes itself firmly in the longitudinal and. acute
angled groove at the head of the needle.
Having thus described my Invention, I claim the improved mode of needle making
herein described, the eye being pierced with a central aperture forming three parts
of a circle, and which aperture is continued upwards towards the head of the needle
longitudinally, and terminating at the apex in an acute angular groove whose widest
part commences from the head and meets the apex of the eye, the lower portion of
the semicircular opening terminating in a groove of somewhat similar form as
illustrated by the accompanying Drawings.
In witness whereof, I, the said Maurice Demmer, have hereunto set my hand
and seal, this Twenty-seventh day of March, in the year of our Lord One
thousand eight hundred and seventy-eight.
MORITZ DEMMER. (L.S.)