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VA
Nav. 5, 1946.
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D. H. CHANEY
2,410,426
CONTROL SYSTEM FOR REMOTELY 'POSITIONED RADIO APPARATUS
Filed May 3, 1945
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Patented Nov. 5, 1946
2,410,426
UNITED STATES PATENT GFFICE
2,410,426
CONTROL SYSTEM FOR REMOTELY
POSITIONED RADIO APPARATUS
David H. Chaney, United States Army,
Cass County, N. Dak.
Application May 3, 1945, Serial No. 591,762
4 Claims. (Cl. 179-1)
(Granted under the act of March 3, 1883, as
amended April 30, 1928; 370 0. G. 757)
The invention described herein may be manu
factured’ and used by or for the Goverment
through clip I1, over reel I5, to terminal II, and
thence to plug 2. When the headset circuit is
functioning, the microphone circuit is inoperative,
forgovernmental purposes, Without the payment
to me of any royalty thereon.
and vice versa.
This invention relates to remote control devices,
The clips I6, I1, enable the remotely positioned
and more particularly to a device for remotelymä jacks I3, I4 to be conveniently attached to the
,ccntrollingwradionannaratusmused for military
ends of a pair of wires wound about reel I5. Pref
purposes.
erably, the wires passing over the reel are twisted.
Due to the possibility of ready discovery by en
From the above description it will be seen that
emy direction ñnders, the farther a radio set is
there has been provided a simple and elîective
kept from command posts and the like, the safer 10 device for remotely controlling radio apparatus
will be the personnel and equipment.
used in military operations.
It is, therefore, an object of this invention to
provide a remote control device which may be
located a mile or more away from a radio set and
still provide satisfactory radio communication.
The above description is to be considered as
descriptive and not limitative of the invention,
of which modifications may be made without de
15 parting from the spirit of the invention as set
A further object is the vprovision of a remote
control device for a radio set requiring only two
wires which can be reversed at either end of the
forth in the appended claims.
The invention having been described, what is ‘
claimed is:
1. In a remote control device for izan/lig(` appa
line without aiîecting the operation of the sys
tem.
20 ratus, a u,iacljztfor receiving a microphone, a jack
These and other objects are attained by the
for a headset, a ñrst plug/„for insertion in a re
novel arrangement circuits hereinafter disclosed
motely positioned ralñ'ofapparatus, a circuit con
and illustrated by the accompanying drawing,
necting the lirst plug with the microphone jack,
forming a part hereof, and in which the figure
switches in said circuit which are closed when the
is a schematic wiring diagram of a circuit em 25 microphone circuit is operated, a second plug
bodying the invention.
adapted for insertion in radio apparatus, a circuit
Referring to the drawing, the remote control
connecting said second plug with the headset jack,
system is shown to comprise a microphone plug
a switch in the headset circuit, and means for
I anda headphone plug 2, which are adapted to
maintaining the last mentioned switch open when
be plugged into jacks in a radio set in a well 30 the microphone circuit is in operation.
known manner. Plug I is in circuit with relay
2. In a remote control device for radio appa
5 and ñlter choke 'I. Relay 5 is in parallel with
ratus, a jack for receiving a microphone, a jack
capacitor 4; and choke ‘I is in series with a relay
for receiving a headset, a first plug for insertion
including a switch 9, which closes when the micro
in a radio apparatus and included in a circuit
phone is operating. Also associated with plug I 35 with the microphone jack, a second plug adapted
is a relay including a switch 8 which closes when
for insertion in a radio apparatus and included in
the microphone is operated.
a circuit with the headset jack, and means for
The microphone circuit proceeds from the plug
rendering the headset circuit inoperative when
I through relay 5 and choke 1 to a terminal I2,
the microphone circuit is operating.
thence through a wire which may pass over a 40
reel I5 thence to a clip I6 and to a jack I3, which
receives the microphone. The microphone is of
the type having a switch by means of which it can
be rendered operative or inoperative. From jack
3. In a remote control device for radio appa
ratus, a microphone, a headset, a circuit connect
ing the microphone to a radio apparatus, switches
in said circuit which are closed when the micro
phone is in operation, a circuit connecting the
I3, the circuit proceeds through clip I'I to reel I5 45 headset with the radio apparatus, a switch in the
and to terminal II, and thence back to plug I.
headset circuit, and means to open the switch in
In parallel with jack I3 is a jack I4 to receive
the terminals of a headset. When the headset is
the headset circuit when the microphone circuit
is in operation.
connected to the jack I4, the microphone switch
4. In a remote control device for radio appa
is opened to render the microphone circuit inop 50 ratus, a microphone, a headset, a circuit connect
erative. When this occurs, switches 8 and 9 will
be open, and a relay including a switch I0 in the
headset circuit will be closed to complete the
headset circuit.
l
There Will now be established a circuit from the 55
headset plug 2, through switch I0, terminal I2,
over reel I5 and clip I6 to Jack I4, and back
ing the microphone to a radio apparatus, a, cir
cuit connecting the headset to the radio appa
ratus, and means controlling said circuits so that
the two circuits cannot be in operation simul
taneously.
DAVID H. CIEIIANESZ'.>
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