US66347A - he nut hulskamp - Google Patents

Description

@einen tatrs atrut @fitta IMPROVEMENT 1N vIoLnis, et.

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TO' AIJL WHOM IT MAY CONOERN:

Be it known that I, G. HENRY IIULSKAMP, of the city of New lYork, have invented new Improvements in Violins, Guitars, etc.; and I do hereby declare that the following is a full and exact description thereof, reference being had to the annexed drawings which are in small size. The same letters refer to like parts in each.

Figure 1 is a horizontal plan of a violin.

Figure 2 is a vertical plan as seen from the right-hand side of the instrument.

Figure 3 is. also a vertical section as seen from thc right-hand side.

Figure 4 is a transverse vertical section of the hoger-board.

I have heretofore applied the principle of straining the sounding-boards by screws, to violins, guitars, alto violins, violincellos, bass violins, ctc., by which the tone and power of these instruments have been much improved. I have now applied the same principle to these instruments by a different construction and in aless expensive manner. The drawings represent the improvements applied to a violin. The application to the other instruments is substantially in the same way.

a a a @represent aunited finger-board and `strinztyholder, made out of one or more different pieces of wood or other material, and secured to the neck and to the end of the instrument at c. In the linger-board is an orifice, O, g. I, through which the bridge 7c passes without touching the finger-board. The form of the linger-board at O is represented in transverse vertical section, through the middle at tig. 4, and c represents the bridge. An oblique brace, eZ d', is rmly secured with both its ends to theA pieces of wood e e, and to the ends of the upper sounding-board, in the inside of the middle of the instrument. fis a screw in the string-holder, which extends through an orifice in the upper board into the oblique brace (Z eZ. By tightening this screwfand the strings of the instrument, the upper sounding-board will be strained. The oblique brace g g in iig. 2 is firmly secured to the inside of the lower sounding-board. The upper end ofthe oblique brace, tig. 2, at F1, extends up through the orice z'in the upperA board, without touching the same, to the upper surface of the upper sounding-board. One foot ofthe bridge 7c is placed upon this post and the' other foot upon the surface of the upper sounding-board. The vibration of the springs is transmitted alike to both the points q g of the lower sounding-board7 and by the pressure of thel strings upon this 'oblique post the sounding-boards will also be strained. The oblique post or brace g g, in iig. 3, is also-secured to the lower board in the same manner as the brace in iig. 2. But its upper partvm is placed under tbe upper sounding-board, near to the other foot of the bridge k. It will be seen that the straining of the board in this ligure is in the same manner produced as in tig. 2. Straining the sounding-boards in this manner, and transmitting the vibrations of the strings through oblique braces to different points of the .sounding-boards, the tone andvpower of the instrument arc much improved, and this system of straining the sounding-boards, with similar oblique braces and a solid inger-board, can also beeasily applied to all instruments of the old construction. I can dispense with the stringholder entirely by extending the finger-board to the line p and securing the string u directly on the end of the linger-board atpp p, but in large instruments I prefer the united lfinger-board and string-holder, screwed firmly to the end of the instrumentatie. By placing the feet of the bridge on diiferent posts, or on the upper and lower board of the instrument, the tene of the instrument can be varied.

What I claim as my invention, and desire to secure by Letters-Patent, is

1. I claim the straining of sounding-boards in violins and other instruments before named and referred to, 0f whatever material made, by the tension and pressure of the strings, substantially as hereinbefore described.-

2. Transmitting the vibration of thestrings by posts or, oblique braces to different points of the upper and lower sounding-boards, and making the feet of the bridge 7c to bear'upon the oblique braces, substantially as described. i

3. Making the linger-board and string-holder in one piece, with an orifice O for the bridge 7c, and connecting the same with the oblique brace cl d, substantially as set forth.

4. Securing the strings directly on the end of thc extended finger-board atppp, substantially as described.

G. HENRY HULSKAMP.

Witnesses:

H JOHN S. HOLLINGSHAD,

WM. J. Funnn'rr.

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