Improvements in Holders for the Needles or Tracers of Sound Reproducing Apparatus.
Year: 1899

page_text: Date of Application, 30th Nov., 1899
Complete Specification Left, 19th July, 1900-Accepted, 15th Sept., 1900
PROVISIONAL SPECIFICATION.
Improvements in Holders for the Needles or Tracers of Sound
Reproducing Apparatus.
I, GUSTAV KORYTOWSKI, of 66-74, Eisenbahnstrasse, Leipzig, Neuschönefeld,
in the Empire of Germany, Director of a Company,, do hereby declare the nature
of this invention to be as follows:--
In the Specification of former Application, No. 16085/99 I have described a
needle or tracer changing device in connection with grammophones phonographs
and like apparatus, in which the front tubular portion of the needle holder is
provided with slits to hold the needle with a slight pressure to prevent the same
from springing forward too much.
Naturally this pressure acts upon the following needle or tracer, and has a
tendency to injure the point of the latter, and the object of the present invention
is therefore to overcome this resistance.
The tubular end of the holder is drilled so that the needle can be removed or
introduced without frictional resistance. To prevent the needle from being
pushed forward too far by a sudden impulse a spring is attached to a screw
lever, in such a manner that it crosses the path of the needle, when the screw
is loosened and is thus pushed aside by the needle, when the latter is pushed
forward. The needle cannot therefore move further outward than it is intended
to do.
Dated this 30th day of November 1890
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,.
Agents for the Applicant.
Improvements in Holders for the Needles or Tracers of Sound
Reproducing Apparatus.
I, GUSTAV KORYTOWSKI, of 666-74, Eisenbahnstrasse, Leipzig, Neuschönefeld,
in the Empire of Germany, Director of a Company, 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:-
-
In a prior Application for Letters Patent No. 16085 dated 5th August 1899 I
have described a needle changing device for sound reproducing apparatus in which
the front tubular portion of the needle holder was provided with slots to hold
the needle with a slight pressure, in order to prevent it from springing or creep-
ing forward too much.

page_text: This pressure however, naturally exerts a certain resistance against the follow-
ing needle, and has a tendency to injure the point of the latter.
The object of the present invention is to obviate this defect and in order
that my invention may be readily understood and carried into effect, I will
describe the same fully with reference to the accompanying drawings in which
Figure 1 is a side view of the needle holder, showing the slots d in the tubular
end thereof.
Figure 2 is a similar view showing the screw lever f thrown back to hold the
retaining spring y out of operative position.
Figure 3 shows the spring in its operative position and,
Figure 4 is an end view seen from the front.
According to this invention the tubular end a Figure 3 is drilled in such a
manner that the needle c can be thrown out or introduced without any frictional
resistance. To prevent the needle from being pushed forward too far by a
sudden impulse, a spring g is attached to the screw lever f in such a manner
that it crosses the path of the needle when the screw is opened (see Figures 3
and 4) and is thus pushed aside by the needle when the latter is pushed forward.
The needle is therefor prevented from projecting or falling out further than
intended.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that
- what I claim is:-
1. In a reproducer for talking machines having a magazine adapted and
arranged to carry a plurality of reproducing needles, a needle holder consisting
of a split-tubular member, a screw lever for the same and means carried by
said lever to prevent the needle from working forward and thereby becoming
injured, substantially as described and illustrated by the accompanying drawings.
2. A needle holder having its forward portion, formed as a tube and split
to form a spring member, a screw lever to clamp said holder, and a spring, con-
nected with the lever, adapted to press upon the needle to prevent the same being
pushed too far forward under sudden impulse substantially as described and
illustrated by the accompanying drawings and for the purpose specified.
Dated this 19th day of July 1900.
V HIUU.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.