A Magnetic Needle-threader.
Year: 1899

page_text: Date of Application, 11th Aug, 1899-Accepted, 16th Sept., 1899
COMPLETE SPECIFICATION.
A Magnetic Needle-threader.
We, MICHAEL MOLITAR, of 39A, Anilinstrasse, Ludwigshafen on the Rhine,
Germany, Foreman, and FRANZ KERN, of 9A, Liebigstrasse, Ludwigshafen on
the Rhine, Germany, Electrician, 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:
-
Our said invention relates to the construction of a magnetic needle-threader
for quickly and easily threading sewing needles.
In order that our said invention may be more clearly understood we will
describe it with reference to the accompanying drawing in which
Figures 1, 2 and 3 are elevations of our said invention as seen from different
sides, Fig. 2 showing a needle inserted.
Fig. 4 is an enlarged plan.
Fig. 5 is an enlarged cross section showing the needle threaded.
In all the figures the same letters refer to the same parts.
On the ends of the inside of a horseshoe shaped magnet a are fixed two bevelled
pole shoes b which are separated from each other by a brass wedge c in order to
prevent the closing of the magnet. The two pole shoes b extend beyond the
edge of the wedge e forming a channel for the insertion of the needle d.
At the side of the magnet is a funnel shaped passage e formed in the wedge
and the pole shoes for the guiding of the thread f into the eye of the needle d.
Between the arms a a of the magnet is mounted a steel catch 9 having a
conical point which is pressed by a spring h into the end of the funnel shaped
passage e. The spring his attached to the heel of the catch g in such a manner
that normally the point of the catch is in the end of the passage. When the
bent part of the spring his pressed towards the magnet the point of the catch
is lifted clear of the magnet as shown by dotted lines in Fig. 2.
The mode of using our said invention is as follows.-The needle d is placed
in the channel between the pole shoes with the eye in the same direction as the
funnel shaped opening so that the point of the catch a catches in the eye of
the needle and holds it opposite the end of the funnel shaped passage e.
The thread f can be easily inserted. Simultaneously with the threading of the
needle the point of the catch g is lifted away from the end of the funnel shaped
passage by pressure on the spring h, the needle at this time is held in position
by magnetic attraction. As soon as the needle is threaded the spring is released
when the catch g presses towards the eye and holds the thread until the desired
length is drawn through and cut off by one of the ends of the magnet which
are formed as cutting edges i.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
A
11
11
1
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page_text: shaped magnet, pole shoes b, a brass wedge c, a funnel shaped passage e and a
catch g substantially as and for the purpose set forth and shown with reference
to the accompanying drawing.
Dated this 5th day of Aust 1900
E. T. WHITELOW, A.M. Inst. C.E.,
70, Deansgate, Manchester, Agent for the Applicants.