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Патент USA US2105365

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Jan. 11, 1938.
2,105,365
R. PANCOTTI
ACCORDION
Filed May 13, 1956
I
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5’
ROB E
BY
INVENTOR
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T.
RAW
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M. [M
ATTO R N EY
Patented Jaa. 11, 193s
.
2,105,365 l
UNITED STATE S
>PA'rEN'r ori-fica
2,105,365
AOCORDION
Roberto Pancotti, Nutley, N. J., assignor to Ex;
ceisior Accordion Manufacturing Co. Inc., New
York, N. Y.
Application May 13, 1936, Serial No. 79,424
L
4 claims.
The present invention relates to musical in
struments, and more particularly to accordions.
In accordions as heretofore constructed, the
valvev and sound chambers or heads havefsharp
or square corners formed »by joining together the
side and end walls of said chambers at right
angles to each other. Similarly in such accordi
ons the bellows have sharp corners conforming to
the contour of the walls of -the sound chambers
or heads of the accordion. I have found that
the tonal qualities of the accordion are greatly
improved when the walls of the soundy chamber,
instead of being joined at right angles, are pro
vided with well rounded corners or curved por
tions. ’The provision of rounded corners in the
bellows in conformity with the rounded corners
of the valve and sound chambers or heads also
contributes to the improvement of the tonal qual
ities of the instrument and further results in
quickertone response to the movement of the
bellows. The tone produced in the playing of
accordions having rounded corners in accordance
' with the present invention has greater richness
Fig. 5 is a view similar to Fig. 2, showing a
modification;
Fig. 6 is a sectional view on the line 6--6 of
Fig. 5.
Referring to the drawing, the accordion, indi- 5
cated generally by the reference numeral III,
comprises the usual keyboards I2 and I 4, the bel
lows I6 and two valve and sound chambers 'or
heads I8 and '20 adjacent said keyboards I2 and
I4, respectively, on opposite sides of the bellows. 10
In accordance with the usual construction of ac
cordions a reed »and valve block 22 is mounted
within the valve and sound chamber I8 and slm- .
ilarly a reed and valve block 24 is mounted with
in the sound and valve chamber 20. The valve 15
and sound chamber I8 is defined by side walls
26 and 28 and by end walls 30. The other valve
and sound chamber 20 is similarly defined by
side walls 32 vand 34 and by end walls 36.
As clearly shown in Figs. 2 and 3, the end and
side walls of said chambers I8 and 20 do not
meet each other at right angles, but merge into
each other at their adjacent end portions along
and in this and other respects is more pleasing well rounded curved lines forming instead of
than the tone of the square corner accordions right angular corners, as in the prior art con
such as those which were conventional prior to -structions, internal and external well rounded
my invention. The provision of an accordion corners or curved portions 38 and 40 in the
chambers I8 and 20, respectively. Also, as clear
of improved tonal qualities and which has a sub
stantially instantaneous tone response to the ly shown in Figs. 2 and 3, said side and end walls
30
30 movement of the bellows are primary objects of of both sound chambers are formed respectively
from continuous strips of material, such as wood,
the present invention.
A further object of the invention is to improve bent into the configuration shown to provide the
the construction ofthe bellows whereby the life chamber defining walls with well rounded end
thereof may be lengthened. This is accomplished portions .and joined at their meeting ends 42
' in accordance with the present invention by the and 44, respectively, here shown positioned mid,
provision of rounded corners in the bellows which way of the side walls 26 and 34 of the sound
40 bellows that contribute to the failure or break
chambers I8 and 20, respectively. By reason of
this `construction, the plurality of joints hereto
fore required in instruments of this character
.are eliminated. The sound chambers I8 and 20
down thereof.
The above objects of the invention and other
objects which might hereinafter appear will be
which may be of any preferred or conventional
construction which, while permitting the emis
results in deep bellows folds whereby to improve
. the tone response to the movement of the bellows
and to reduce the strains and movement of the
- fully understood from the following description
“ considered with reference to the accompanying
are provided with covers I9 and 2|, respectively,
'sion of sound, exclude dust and serve also as or
namental elements for the accordion. -
The bellows I6 may be of any usual construc
tion, but for better results in the playing of the
Fig. l is a perspective view of an. accordion
embodying the present invention;
Fig. 2 is a sectional view on the line 2-`-2 of
Fig. l;
Fig. 3 is a sectional view on the line 34-3 of
Fig. l;
Fig. 4 is a sectional view on the line 4-4 of
Fig. 1;
instrument and in order to harmonize with the
appearance of the sound chambers I8 and 20,
~said bellows preferably conform in peripheral
configuration to the peripheral contour of the
.sound and valve chambers I8 and 20. Thus, as
shown in Fig. 4, the side walls 46 and the end
walls 48 of the bellows have rounded corner or
curvedfwall portions Il in conformity with the
4
2
2,105,365
rounded portions 38 and 40 of the sound cham
bers i8 and 20.
l
In the form of the invention illustrated in
Figs. 5 and 6, the sound chambers in communi
cation with the bellows may comprise, as in thel
prior art constructions, side walls 5| and end
walls 52, which are joined together at their meet
ing ends forming right angular corner portions.
As here shown, however, a filler member 54 is
positioned interiorly of the sound chamber at
each corner portion thereof thus forming an in
ternal rounded corner.
15.
Said filler members are
substantially triangular in cross section, having
angularly related outer surfaces 56 and 58 and
an inner surface 5D which is preferably curved.
Said ?ller members are set into recesses 52 and
84 formed in the side and end walls 5| and 52,
respectively, at each corner portion of the sound
chamber so that the curved surface of the wall
60 is continuous with the inner surfaces of the
companion end and side walls of the sound cham
ber. In this form of the invention, the valve and
reed block 23 is illustrated more or less conven
tionally as is the case with the valve and reed
blocks 22 and 24 in the form oi the invention
shown in Figs. 2 and 3, it being understood that
the present invention is not concerned with the
‘ details of construction of the accordion or any
parts thereof other than the sound chambers and
It will be further understood that in
30 bellows.
the construction illustrated in Figs. 5 and 6, the
bellows instead of having rounded corner por
tions, asin the constructions illustrated in Fig. l,
have their side and end walls in right angular
35 relation as in the prior art constructions.
Thus, it is seen that the constructions herein
shown and described are well adapted to accom
plish the ‘several objects of the present invention.
However, it will be understood, especiallyl in con
nection with the form ofthe invention illustrated
AinFigs. 1 to 4, that the peripheral configuration
of the body of the accordion, including the bel
lows and valve and sound chambers, is such that
said body is free of sharp corners or other abrupt
edges and on this account the accordion may be
held against the player’s body with considerable
more comfort than was heretofore the case.
It
Will be understood, however, that while I have
shown several embodiments of my invention, in
50 cluding the'one which I prefer, nevertheless, the
invention is capable of other embodiments and
that certain changes in the construction and ar
rangement of parts may be made in the forms of
the invention herein illustrated. Accordingly, I
do not wish to be limited to the precise construc 5
tions herein shown or described, except as may
be required by the appended claims considered
with reference to the prior art.
Having described my invention, what I claim
and desire to secure by Letters Patent is:
l. An accordion comprising a bellows and a
valve and sound chamber in communication
therewith, said chamber comprising side and end
walls having their adjacent portions at both ends
and sides of the chamber merged into each other
along curved lines forming curved wall portions
or rounded corners at the ends and sides oi said
chamber,
2_. An'accordion comprising a bellows and a
valve and sound chamber in communication
therewith, said chamber comprising side and end
walls having their adjacent portions at both ends
and sides of the chamber merged into each other
along curved lines forming curved wall portions
or rounded corners at the ends and sides of said
chamber, said bellows also having rounded cor
ners and conforming substantially to the contour
of said side and end walls.
3. An accordion comprising a bellows and a
valve and sound chamber in communication 30
therewith, said chamber comprising side and end
walls having their adjacent portions at both ends
and sides of the chamber interiorly thereof
merged into each other along curved lines form
ing curved wall portions or rounded corners at '
the ends and sidesof said chamber interiorly
thereof.
4. An accordion comprising a bellows and a '
valve and sound chamber in communication
therewith, said chamber comprising side and end
walls having their adjacent portions at both ends
and sides of the chamber interiorly thereof
merged into each other along curved lines form
ing curved wall portions or rounded corners at
the ends and sides of said“ chamber interiorly
thereof, said bellows also having rounded corners
and conforming substantially to the contour of
said side and end walls.
RQBERTO PANCO'I‘I‘I.
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