US666138A - Pianoforte. - Google Patents

Description

No. 666,|38. Patented lan. l5, |90I.

c. ms. HALL.

PIANOFORTE.

(Application led Aug. 14, 1900.)

(N0 Model.)

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UNITED STATES PATENT OFFICE.

CLIFFORD ROBERT STEPHEN JOHN HALL, OF LONDON, ENGLAND.

PIANOFORTE.

SPECFICATION forming part of Letters Patent No. 666,138, dated. January 15, 1901.

Application filed August 14, 1900. Serial No. 26,892. (No model.)

To @ZZ whom, t may concern.-

Be it known that I, CLIFFORD RQBERT STE- PHEN JOHN HALLE, a subject of the Queen of Great Britain, residing at 50 Lincolns Inn Fields, London, England, have invented certain new and useful Improvements in or Connected with Pianofortes, of which the following is a specification.

The object of my invention is to provide a means by which grand or horizontal pianofortes may be provided with down-striking actions and the arrangements for tuning may be of the simplest kind, while the bars of resistance shall be underneath the sound-board instead of over, thereby insuring a better and more even tone and a larger amount of soundboard under the treble part of the bridge.

The accompanying drawing will readily eX` plain my invention.

The wrest-plank 7c is at right angles to the sound-board j.

b is the end ofl one of the iron resistancebars of the frame.

m is one of the bolts by which the wrestplank is fixed to the bar Z. A

n is a strong plate of iron or plank of Wood upon which the bridge p is fixed. This plate or plank is supported on bearing-blocks fastened between the same and the bar Z onto the back of the Wrest-plank, and these blocks also offer support to the sound-board The tuning-pins t t pass out between the prolongwires d, which connect the end of the key a with the lever e, which has the hopper f centered onto it.

The hammer g is pivoted at a to a piece o, projecting from a bar w, to which the spring s is fixed for supporting the hammer at the stock The lever e is also in connection with the horizon tal dam per-lever h, this being pivoted to an extension t' of the bar e', a pivoted bar y being pivoted to the bar ,e for operation on the damper-lever h to lift the damper q from the string r for the loud-pedal.

o represents the usual checks arranged upon Wires.

Other actions may be employed, those shown serving only as an elevation for oonnecting same with my invention.

What I olaim, and desire to secure by Letters Patent, is-

1. In a piano, a wrest-plank at right angles to the sound-board of the piano, a down-striking action, wires connecting the action to the keys, and tu ning-pins extending between the said wires and parallel with the said keys.

2. In a piano, a sound-board above the resistance-bars thereof, a wrest-plank mounted at right angles to said board, a down-striking action, wires' connecting the action to the keys, and tuning-pins extending between the said wires and parallel with the said keys.

3. In a piano, a downstriking action connected by prolong-wires to the keys thereof, and a wrest-plank mounted at right angles to the sound-board of the piano and provided with tuning-pins extending between the said wires to permit of tuning the piano from the front thereof.

4. In a piano, a down-striking action connected by prolong-wires to the keys thereof, a sound-board mounted above the resistancebars, and a wrest-plank at right angles to the said board and provided with tuning-pins eX- tending between the said wires and parallel with said keys.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CLIFFORD ROBERT STEPHEN JOHN HALLE.

Witnesses:

EDMUND S. SNEWIN, WM. O. BROWN.

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