A Device for Regulating the Distance between Objects Hermetically Enclosed applicable to Receivers for Waves of Heat, Light, or Electricity.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
A Device for Regulating the Distance between Objects Hermetically
Enclosed applicable to Receivers for Waves of Heat, Light, or
Electricity.
We, AXEL ORLING, of No. 7, Engelbrektsgatan, Electrician, and CARL GUSTAF
GEORG BRAUNERHJELM, of No. 19, Engelbrektsgatan, Colonel, both of Stockholm,
in the Kingdom of Sweden, do hereby declare the nature of this invention to be
as follows:-
-
The present invention relates to a device for regulating the distance between
objects enclosed in an hermetically closed space, and it consists essentially in
providing the movable object with a threaded spindle, which either by means of
a weight is prevented from partaking in any rotation communicated to the
enveloping casing about an axis which is parallel, or nearly parallel, to the
threaded spindle, and by this means is shifted longitudinally in a nut rotating
with the casing, or partakes in the aforesaid rotation of the casing and is simul-
taneously shifted in a nut located between fixed stops and secured in place by
means of a weight. The invention may be applied to advantage to receivers
for light, heat, or electric waves consisting of a series of objects located between
two electrodes movable in relation to each other in a closed air-tight casing,
said objects forming part of an electric circuit and normally exerting a great
resistance to the electric current, but as regards their electrical conductivity,
being sensitive to the aforesaid waves in such a manner that their aggregate
resistance is diminished under the action of said rays. The present invention
affords a means of conveniently regulating the distance between the electrodes
so as to increase or decrease the sensitivity of the receiver at will.
In the annexed drawing Figure 1 shews an elevation partially in a vertical
section, of a receiver constructed in the manner referred to; Figure 2 shews
an end-view, and Figure 3 a modified detail of same.
In the form shewn in Figures 1 and 2 the casing a is rotatably journalled in
a fork d which can be swung on a pin b or the like in the standard or base c,
so that the said casing by unscrewing or screwing up the thumb-nut e can be
adjusted so as to occupy a greater or less inclination to the horizon. In the

page_text: secured
casing a is a tube f which is rigidly attached to said casing, said tube being
made of glass or other non-conducting material which is suitable for the pur-
pose. The tube contains a number of objects which are sensitive to light,
heat, or electrical waves, said objects being between one fixed electrode g and
one movable electrode h. The movable electrode h consists of a plunger that
can be shifted in the tube f, and is provided with a threaded spindle on which
is screwed a nut m connected by means of a link to a weight k. The threaded
spindle passes freely through a central aperture in a circular disc
to one end of the tube f and provided at its circumference with a cylindrical
rim n having at its edge a number of recesses o located at some distance from
each other, in which recesses a pin hook, or the like, projecting from the
weight, can enter. To the disc n is rigidly attached a curved arm the free
end of which is provided with an aperture through which the threaded spindle i
passes freely. The nut m is located between the disc and the free end of the
arm p, said parts serving as stops for preventing the turning of the nut without
the simultaneous shifting of the threaded spindle in one direction or the other.
When the apparatus occupies the position shewn in Figure 1, it is necessary,
in order to regulate the distance between the electrodes g and h, to first un-
screw the thumb-nut e and swing the fork d (to the right) so as to cause the
pink, attached to the weight k, to drop out of the corresponding recess o of the
rim n¹. The nut e can subsequently be screwed up anew. The casing a is now
in an inclined position while the weight & hangs freely down. If in this posi-
tion the casing a be rotated on its journals, the nut m will be kept from taking
part in the rotation since the weight by the force of gravity is caused to always
remain in the same position. The threaded spindle will instead be shifted in
one direction or the other and the distance between the electrodes will be corre-
spondingly changed. On completing the adjustment of the distance between
the electrodes the nut e is again loosened and the fork d swung back so as to
become locked once more in one of the recesses o.
In the arrangement shewn in Fig. 3 the weight k is suspended by means of
the link on the threaded spindle itself, while the stationary nut m and the
arm p are entirely dispensed with. The disc n is here provided with threads to
receive the threads of the spindle which can be shifted in one direction or the
other by being prevented by the action of the weight & from partaking in the
rotation of said disc.
Dated the 26th day of January 1899.
A Device for Regulating the Distance between Objects Hermetically
Enclosed applicable to Receivers for Waves of Heat, Light, or
Electricity.
We, AXEL ORLING, of 7, Engelbrektsgatan, Electrician, and CARL GUSTAF GEORG
BRAUNERHJELM, of 19, Engelbrektsgatan, Colonel, both of Stockholm, Sweden,
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:-
The present invention relates to a device for regulating the distance between
objects enclosed in an hermetically closed space, and it consists essentially in

page_text: providing the movable object with a threaded spindle, which either by means of
a weight is prevented from partaking in any rotation communicated to the
enveloping casing about an axis which is parallel, or nearly parallel, 'to the
threaded spindle, and by this means is shifted longitudinally in a nut rotating
with the casing, or partakes in the aforesaid rotation of the casing and is simul-
taneously shifted in a nut located between fixed stops and secured in place by
means of a weight. The invention may be applied to advantage to receivers
for light, heat, or electric waves consisting of a series of objects located between
two electrodes movable in relation to each other in a closed air-tight casing,
said objects forming part of an electric circuit and normally exerting a great
resistance to the electric current, but as regards their electrical conductivity,
being sensitive to the aforesaid waves in such a manner that their aggregate
resistance is diminished under the action of said rays. The present invention
affords a means of conveniently regulating the distance between the electrodes
so as to increase or decrease the sensitivity of the receiver at will.
pose.
In the drawing left with the Provisional Specification Figure 1 shews an
elevation partially in a vertical section, of a receiver constructed in the manner
referred to; Figure 2 shews an end-view, and Figure 3 a modified detail of same.
In the form shewn in Figures 1 and 2 the casing a is rotatably journalled in
a fork which can be swung on a pin or the like in the standard or base_c,
so that the said casing by unscrewing or screwing up the thumb-nut e can be
adjusted so as to occupy a greater or less inclination to the horizon. In the
casing a is a tube f which is rigidly attached to said casing, said tube being
made of glass or other non-conducting material which is suitable for the pur-
The tube contains a number of objects which are sensitive to. light,
heat, or electrical waves, said objects being between one fixed electrode y and
one movable electrode h. The movable electrode h consists of a plunger that
can be shifted in the tube f, and is provided with a threaded spindle on which
is screwed a nut m connected by means of a link to a weight k. The threaded
spindle passes freely through a central aperture in a circular disc n secured
to one end of the tube f and is provided at its circumference with a cylindrical
rim n having at its edge a number of recesses e located at some distance from
each other, in which recesses a pin ¹ hook, or the like, projecting from the
weight, can enter. To the disc n is rigidly attached a curved arm the free
end of which is provided with an aperture through which the threaded spindle i
passes freely. The nut m is located between the disc n and the free end of the
arm p, said parts serving as stops for preventing the turning of the nut without
the simultaneous shifting of the threaded spindle in one direction or the other.
When the apparatus occupies the position shewn in Figure 1, it is necessary,
in order to regulate the distance between the electrodes and h, to first un-
screw the thumb-nute and swing the fork d (to the right) so as to cause the
pin attached to the weight k, to drop out of the corresponding recess o of the
rim n¹. The nut e can subsequently be screwed up anew. The casing is now
in an inclined position while the weight hangs freely down. If in this posi-
tion the casing a be rotated on its journals, the nut m will be kept from taking
part in the rotation since the weight by the force of gravity is caused to always
remain in the same position. The threaded spindle will instead be shifted in
one direction or the other and the distance between the electrodes will be corre-
spondingly changed. On completing the adjustment of the distance between
the electrodes the nut e is again loosened and the fork d swung back so as to
become locked once more in one of the recesses o.
In the arrangement shewn in Fig. 3 the weight k is suspended by means of
the link on the threaded spindle itself, while the stationary nut m and the
arm are entirely dispensed with. The disc » is here provided with threads to
receive the threads of the spindle which can be shifted in one direction or the
other by being prevented by the action of the weight from partaking in the
rotation of said disc.

page_text: Having now particularly described and ascertained the nature of this said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
:―
1. In a device for regulating the distance between objects enclosed in a her-
metically closed casing the combination with the casing and objects enclosed
therein of a threaded spindle fastened to the movable object, a nut located on
the spindle between fixed stops and a weight attached to the said nut in such a
manner as to hold it stationary while the casing and spindle is rotated about an
axis parallel, or nearly parallel, to the said spindle, substantially as and for the
purpose set forth.
2. In a device for regulating the distance between objects enclosed in a her-
metically closed casing the combination with the casing and the objects enclosed
therein of a threaded spindle fastened to the movable object, a nut surrounding
the spindle and fastened to the casing, and a weight attached to the spindle in
such a manner as to prevent it from partaking in any rotation communicated
to the casing about an axle which is parallel, or nearly parallel to the aforesaid
spindle, substantially as and for the purpose set forth.
3. In a device for regulating the distance between objects enclosed in a her-
metically closed casing the combination with the casing and objects enclosed
therein of a base or standard, a fork or holder for the casing pivotally connected
to said base, a fastening device for securing the holder in a more or less inclined
position in the base, a threaded spindle fastened to the movable object, guides
for said object, a nut located on the spindle between fixed stops, a weight
attached to the said nut in such a manner as to hold it stationary while rotating
the casing and spindle in the fork or holder, a circular disc secured to one end
of the guide and provided with a cylindrical rim having at its edge a number of
recesses at some distance from each other, and a pin, hook, or the like, projecting
from the weight and adapted to enter into the recesses, substantially as and for
the purpose set forth.
4. In a device for regulating the distance between objects enclosed in a her-
metically closed casing the combination with the casing and the objects enclosed
therein of a base or standard, a fork or holder for the casing pivotally connected
to said base, a fastening device for securing the holder in a more or less inclined
position in the base, a threaded spindle fastened to the movable object, guides
for said object, a nut fixed to or formed on the guide, a weight attached to the
spindle in such a manner as to prevent it from partaking in the rotation of the
casing in the fork or holder, a cylindrical rim on the nut having at its edge a
number of recesses at some distance from each other, and a pin, hook, or the
like, projecting from the weight and adapted to enter into the recesses, sub-
stantially as and for the purpose set forth.
5. The apparatus as hereinbefore described and shown in the drawing.
W. P. THOMPSON & Co.,
Of London, Liverpool, Manchester, and Birmingham.