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Патент USA US2056002

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A. DE SAKHNCFFSKY
- Sept. 29, 1936.
_
2,056,002
RADIO APPARATUS
Filed Jan. 29, 1934
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INVENTOR
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ATTORNEYS
Patented Sept. 29, 1936
2,056,002
UNITED STATES PATENT OFFICE
2,056,002
RADIO APPARATUS
Alexis de Sakhno?fsky, Milwaukee, Wis.
Application January 29, 1934, Serial No. 708,927
1 Claim. (Cl. 250—14)
The invention relates to radio apparatus.
inwardly extending flange 8 of the dial support
One of the main objects of the invention is to 1 by screws IS.
provide a novel operating means for control of I
The member 3 is adapted to rotate on the dial
such parts as the tuning, volume or tone. Ac
support and is adapted to have its rotary move
5 cording to the present invention, the control op
ment translated to the tuning condenser bank I‘! 5
erating means is made in the form of a ring through any suitable operating connections. As
or annulus which may be used in different as
here shown, the member 3 has an annular spur ,
sociations with other parts of the apparatus and
which lends itself more readily to a symmetrical
1O arrangement of parts and a more pleasing de
sign of the cabinet or control panel.
A further object of the invention is to pro
vide a radio apparatus in which the operating
gear l8 secured thereto by screws I9, said gear
acting also as a retainer member for holding the
member 3 against endwise movement relative to 10
the support 1. This gear l8 meshes with a gear
20 mounted on the control shaft 2| of the con
denser bank I1, the ratio of the gears I8 and 20
means for one of the controls forms a frame
compact and pleasing arrangement.
being of any suitable value.
For the volume control, I have shown the con- 15
trol unit 22 disposed in the speaker opening with
The invention further consists in the several
features hereinafter set forth and more par
its shaft projecting through a support portion
23 and having the exteriorly disposed operating
ticularly de?ned by the claim at the conclusion
knob 24 thereon. The portion 23 is here shown as
an extension of part of the material forming the 20
15 about the speaker opening and thus provides a
20 hereof.
In the drawing:
dial 4, the control being suitably clamped thereto.
Fig. 1 is a front elevation view of a control oper
The opening for the speaker may be protected
by the screen 25 here shown as secured to the
back face of the dial 4.
From the foregoing description, it will be noted 25
that a rotation of the member 3 will through the
gears I8 and 20 turn the tuning control shaft
2| so the desired station may be heard.
While the member 3 has been shown as con
nected to the tuning control, it will be under- 30
ating means embodying the invention;
Fig. 2 is a detail sectional view through. a por
25 tion of a radio cabinet with the control operat
ing means shown in vertical section.
Referring to the drawing, the numeral 3 desig
nates the annular control operating member gen
erally and 4 the dial associated therewith, said
30 member 3 having a pointer 5 cooperating with
the indications B on the dial. The indications
here shown are for wave length, the control being
a tuning control.
As herein shown, the dial 4 is formed or se
35 cured to an annular supporting portion ‘i hav
ing an inwardly extending annular ?ange 8 and
a short outwardly extending annular ?ange 9
seating in an annular guide recess [0 in the con
trol member 3, these parts being mounted in the
40 opening H in the wall [2 of the cabinet for the
speaker l3.
For supporting the speaker and the parts 3
and 4 in position, a spider I4 of metal or other
suitable material is secured to the wall of the
cabinet by screws I5 passing through arms l5’
(one being shown) and to the speaker and the
stood that it may be used as the operating mem
ber for other controls of the apparatus such as
the volume control or the tone control.
I desire it to be understood that this invention
is not to be limited to any particular form or 35
arrangement of parts except in so far as such
limitations are included in the claim.
What I claim as my invention is:
In a radio apparatus, the combination with a
cabinet having an opening for the speaker, of a 40
control operating member surrounding said
opening, an annular dial cooperating with said
member and disposed within the‘same, and oper
ating means for the volume control within said
opening and inside the projected area of said
dial.
ALEXIS DE SAKHNOFFSKY.
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