US361967A

US361967A - Piano sound-board

Info

Publication number: US361967A
Authority: US
Publication date: 1887-04-26
Anticipated expiration: 1904-04-26

Description

(No Model.)

Y T. NEWHOUSE.

PIANO SOUND BOARD.

No. 361,967. Patented Apr. 26, 1887.

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UNITED STATES PATENT OFFICE.

THEODORE NEIVHOUSE, OF CHICAGO, ILLINOIS.

' PIANO SOUND- BOARD.

SPECIFICATION forming part of Letters Patent No. 361,967, dated April 26, 1887.

Application filed February 15, 1886. Serial No. 191,930. (No model.)

To all whom it may concern:

Beit known that I, THEODORE NEwHoUsE,

a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Piano Sound Boards, of which the following is a full and complete descriptiou, when taken in connection with the where the resonant soundingboard is placed underneath the strings, by the vibration of which strings a musical toneis producedavhich tone is affected by saidsounding-board; and the object of my invention is, primarily, to improve the sound-board of a piano, both in the quality and quantity of the tones produced, when my invention is applied thereto. I have illustrated my invention by the drawings accompanyingthis specification, in which Figure 1 is a plan view showing the under side of a sound-board to which my invention is applied, and showing by the dotted lines the bridges on the upper side of the sound-board. Fig. 2 is a sectional elevation on line 2 2-of Fig. 1,and Fig. 3 is a sectional elevation on line 3 3 of Fig. 1.

Like letters refer to like parts throughout the several views.

A is the sound-board.

B B are the bridges.

C are ribs on the under side of the soundboard. .1

-D D are suspension chords or ribs superim posed upon ribs C.

I am aware that sounding-boards have been heretofore made'having ribs 0 C placed on the under side thereof, and I do not therefore claim supporting, strengthening, or otherwise affecting a sounding-board by the placing thereon of ribs secured thereto, and also that a double soundboard composed of two soundboards, one in front of the back framing, the other in rear of it, said boards being sprung into an arched or crowning form by means of sound-posts introduced between them,has been made; but so far as I am aware no soundingboards have been heretofore made wherein the ribs so secured (and the sounding-board) have been supported, strengthened, or otherwise affected by the suspension-ribs and the connect ing-pieces used by me.

By the use of the suspension-ribs, placed as described, I am able to reduce the amount of material used for the ribs of the soundingboard, and to obtain, in a much better manner than has heretofore been done, control over the vibration of any given string'strung upon or over the sounding-board.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. The combination, with asound-board for musical instruments, of the compound support consisting of the ribs C and suspensionchords D, substantially as and for the purpose set forth.

2. In a sound-board, the combination of board A, ribs 0, ribs D, superimposed on ribs 0, and connecting-pieces E, all substantially as described.

3. As an improvement in sound-boards for musical instruments, the compound support consisting of the ribs C, suspension-chords D, and posts or braces E, constructed and combined substantially as and for the purpose set forth. I

THEODORE NEWIIOUSE.

\Vitnesses:

ALFRED STRANDBERG, llIAI'THIAS J OHNSON.