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Патент USA US2132281

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Oct. 4, 1938.
H. E. ADAMSON
2,132,281
GUITAR PLAYING SIMPLIFIER
Filed Feb. 25, 1937
2 Sheets-Sheet l
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06f. 4, 1938.
H, EI ADAMSON
2,132,281
GUITAR PLAYING SIMPLIFIER
Filed Feb. 25, 1957-
2 Sheets-Sheet 2
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Patented Oct. 4, 1938
2,132,281
UNITED _STATES PATENT OFFICE
2,132,281
GUITAR PLAYING SIMPLIFIER
Herschel E. Adamson, Eureka Springs, Ark.
kApplication February 25, 1937, Serial No. 127,758
1 Claim.
This invention relates to an attachment for
(Cl. 84-317)
tractile coil spring I8. Lugs I9 may be provided
stringed musical instruments, more particularly
on the bails to engage the top of the neck to aid
guitars, and it aims to provide a novel means
adapted to ñt the neck of the guitar, to be used
t'o make the changing of chords faster and easier.
in positioning the attachment.
Various breaker members are provided at 2D,
each of which is manually depressible by the us
ual linger which controls the chords. As best
s The attachment is particularly advantageous for
those having a scant knowledge of music and
those having short or stiff lingers. The attach
ment oiïers all necessary chords for playing in
the four keys of C, G, D and A. The invention
l overcomes the slow, inaccurate changes at pres
ent depending upon one finger of the operator,
and requiring such ñnger to assume awkward
positions. It also avoids the so called fuzzy tones.
The more specific objects and advantages will
15 become apparent from a consideration of the de
scription following taken in connection with ac
companying drawings illustrating an operative
embodiment.
In said drawings:_
20
Figure 1 is a plan view showing the attachment
applied to the neck of a guitar;
Figure 2 is a horizontal sectional view of the
seen in Figure 3, the breaker members are vari
ously shaped according to the strings which they
are adapted to engage for speciñc chords. Where
the breaker members engage the strings, they
are provided with hammers or shoes 2 I, the num
ber varying according to the particular strings 10
which are used for the chord. Each breaker
member has a vertical stem 22 slidably disposed
in the lower and upper walls of the casing and
at the upper ends, they carry keys 23 which may 5
be screw threaded or otherwise fastened thereto.
The stems 22 at their lower ends, may detachably
screw into the breaker members or be otherwise
attached thereto. Said breaker members and the
stems, are also variously shaped, in order to pro
vide clearance for the operation of the different
0
parts.
parts of Figure 1, with the top of the attachment
Rising from the breaker members and slidably
removed and taken substantially on the plane of through the bottom wall of the casing, are pegs
25 line 2_2 of Figure 4;
or pins 24, and expansive coil springs 25 surround
Figure 3 is a horizontal view in plan looking the same and abut the lower wall of the casing
down upon the breakers and taken substantially ' and heads 26 on such pegs, the springs function
on the plane of line 3_3 of Figure 4;
ing to urge the breaker members upwardly and
Figure' 4 is a vertical sectional view taken on into contact with the undersurface of the lower
wall of casing I0.
3 O the line 4_4 of Figure 3;
Figure 5 is a detail sectional view taken on the l Obviously, the attachment may be made in va
line 5_5 of Figure 3;
rious sizes and designs, according to the particu
Figure 6 is a detail section taken on the line lar instrument or instruments to be played and
6_6 of Figure 3, and
that other changes may be resorted to within the
Figure 7 is a detail section taken on the line :spirit and scope of the invention.
3
1_1 ol' Figure 3.
I claim as my inventionzReferring specifically to the drawings wherein
An attachment of the class described compris
like reference characters designate like or similar ing an elongated, hollow box-like casing, stems
parts, a stringed musical instrument has been slidably mounted perpendicularly on the casing,
conventionally shown by way of example, speciñ
breakers carried by the stems and normally abut
4O
cally at I 0 representing the neck of a guitar hav
ting the undersurface of the casing and movable
ing frets II thereon beneath the usual strings I2. by certain of the stems into contact with the
'I'he attachment comprises a suitable metallic strings of a musical instrument, said certain of
or other hollow box or casing I3 which is disposed the stems extending through and above the top
45 over and above the strings I2. 'I’he cover I3a of Wall of the casing, other stems extending through
said casing is preferably removably fastened in the bottom wall of the casing and terminating
place by means of screws I3b. Said casing at within the casing, and springs within the casing
opposite sides thereof has hooks I4 which are de
surrounding the last mentioned stems and abut
tachably engaged by the eyelets I5 of resilient ting the same and the bottom wall of the casing
balls I6, extending under the neck I0 and being and urging retraction of theI breakers.
5
joined at terminal hooks I1, by a. detachable con
HERSCHEL E. ADAMsoN.
25
35
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