Title:
Guitar playing simplifier
United States Patent 2132281


Abstract:
This invention relates to an attachment for stringed musical instruments, more particularly guitars, and it aims to provide a novel means adapted to fit the neck of the guitar, to be used to make the changing of chords faster and easier. 8 The attachment is particularly advantageous for those...



Inventors:
Adamson, Herschel E.
Application Number:
US12775837A
Publication Date:
10/04/1938
Filing Date:
02/25/1937
Assignee:
Adamson, Herschel E.
Primary Class:
Other Classes:
984/116
International Classes:
G10D3/08
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Description:

This invention relates to an attachment for stringed musical instruments, more particularly guitars, and it aims to provide a novel means adapted to fit the neck of the guitar, to be used to make the changing of chords faster and easier.

8 The attachment is particularly advantageous for those having a scant knowledge of music and those having short or stiff fingers. The attachment offers all necessary chords for playing in the four keys of C, G, D and A. The invention 10 overcomes the slow, inaccurate changes at present depending upon one finger of the operator, and requiring such finger 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 description following taken in connection with accompanying 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 parts of Figure 1, with the top of the attachment removed and taken substantially on the plane of 25 line 2-2 of Figure 4; Figure 3 is a horizontal view in plan looking down upon the breakers and taken substantially on the plane of line 3-3 of Figure 4; Figure 4 is a vertical sectional view taken on 30 the line 4-4 of Figure 3; Figure 5 is a detail sectional view taken on the line 5-5 of Figure 3; Figure 6 is a detail section taken on the line 6-6 of Figure 3, and 35 Figure 7 is a detail section taken on the line 7-7 of Figure 3.

Referring specifically to the drawings wherein like reference characters designate like or similar parts, a stringed musical instrument has been 40 conventionally shown by way of example, specifically at 10 representing the neck of a guitar having frets II thereon beneath the usual strings 12.

The attachment comprises a suitable metallic or other hollow box or casing 13 which is disposed 45 over and above the strings 12. The cover 13a of said casing is preferably removably fastened in place by means of screws 13b. Said casing at opposite sides thereof has hooks 14 which are detachably engaged by the eyelets 15 of resilient 50 bails 16, extending under the neck 10 and being joined at terminal hooks 17, by a detachable contractile coil spring 18. Lugs 19 may be provided on the bails to engage the top of the neck to aid in positioning the attachment.

Various breaker members are provided at 20, each of which is manually depressible by the usual finger which controls the chords. As best seen in Figure 3, the breaker members are variously shaped according to the strings which they are adapted to engage for specific chords. Where the breaker members engage the strings, they are provided with hammers or shoes 21, the number varying according to the particular strings 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 1 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 provide clearance for the operation of the different 20 parts.

Rising from the breaker members and slidably through the bottom wall of the casing, are pegs or pins 24, and expansive coil springs 25 surround the same and abut the lower wall of the casing 25 and heads 26 on such pegs, the springs functioning to urge the breaker members upwardly and into contact with the undersurface of the lower wall of casing 10.

Obviously, the attachment may be made in va- 30 rious sizes and designs, according to the particular instrument or instruments to be played and that other changes may be resorted to within the spirit and scope of the invention.

I claim as my invention:- 35 An attachment of the class described comprising an elongated, hollow box-like casing, stems slidably mounted perpendicularly on the casing, breakers carried by the stems and normally abutting the undersurface of the casing and movable 40 by certain of the stems into contact with the strings of a musical instrument, said certain of the stems extending through and above the top wall of the casing, other stems extending through the bottom wall of the casing and terminating 45 within the casing, and springs within the casing surrounding the last mentioned stems and abutting the same and the bottom wall of the casing and urging retraction of the breakers.

HERSCHEL E. ADAMSON. 50