US110120A - Improvement in piano-forte actions - Google Patents

Improvement in piano-forte actions Download PDF

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US110120A
US110120A US110120DA US110120A US 110120 A US110120 A US 110120A US 110120D A US110120D A US 110120DA US 110120 A US110120 A US 110120A
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key
keys
piano
improvement
jack
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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10CPIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00Details or accessories
    • G10C3/28Transposing devices

Description

I 'UNITED STATES PATENT Ormes.
VILLARD G. DAY, OF BALTIMORE, MARYLAND.
t IMPROVEMENT IN PIANO-FORTE ACTIONS.
i Specification forming part ot' Letters Patent No. IIOJQQ), dated December' IIS, 1370..
'o all whom t may con/067171,
Beit known that I, WILLARD G. DIY, of
Baltimore, in the county oi' Baltimore and l State of Maryland, have invented certain Improvements in Pianos, Organs, Melodeons, and Similar Instruments, of which the following is a specification, reference being had to the accompanying drawings.
My invention relates to pianos, melodeons, organs, and similar musical instruments; and it consists in the construction and arrangement of certain novel devices by which the keys can be made to repeat without returning to their original or normal position, and also in constructing and arranging the keyboard in connection with cert-ain devices, so that it may be easily and readily transposed.
In the drawings, Figure 1 is a transverse vertical section of an instrument showing the construction and arrangement oi' myi1nprovements. Fig. 2 is a front end view oi' Fig. l, showing a series of notches in the frame ofthe instrument in which the supporting pin or catch of the end of the key-board bears or engages; and Fig. 3 is a vertical crosssecticn on the line x x of Fig. l.
As is well known, only grand pianos, aswell y as those of the more intricate and costly conj struction, are so made as to be repeatersW- that is, so that the same note can be repeated, with a softer and more delicate tone, with the key before it returns to its original position.
The object of my invention is to provide devices so constructed and arranged with the ordinary parts of square or other pianos, or of organs, melodeons, and similar instruments, by which they may be converted into A repeaters.
In the drawings, A represents the box or frame of an instrument in which the strings or stops and the hammers B, with their jacks D, together with the regulators C, and keys E,
with accompanying cushions, are constructed and arranged in any ofthe usual ways, as shown in Fig. 1.
In ordinaryinstruments the keys E, when struck by the operator, )reduce a single note,
nd there are no means for repeating.
In order to provide the requisite devices for this purpose,the ordinary kcys,E,are used lower keys, and over their front ends is nountcd key-frame, G, in which upper keys, F, being those touched by the operator, are pivoted in the usual manner.
The key-frame G has, on the under side of its rear end, eyes 72., attached in any suitable manner, by means of which it is pivoted to a horizontal pin or pins, t, connected to the box, so that it may move laterally on the same as well as swing, for a purpose hereinafter explained.
To the under side of each key F is pivoted a jack, a, as shown in Fig. I, provided with a spring,(not shown,) to hold it against the cushioned end of a regulator, b. This regulator is made adjustable in the usual manner, and is inserted in and through the lower end oi' a pendent post, c, rigidly attached to the under side ofthe key F, as shown in the same gure.
In the lower key, E, under the end ot' the jack a, there is a cushioned depression, d, the front end of which is provided with a bench or ledge, c, upon which the end or foot of the jack a bears or rests when the parts are all properly adjusted, as shown in said Fig. l.
Vhen these parts are thus constructed and properly adj usted, the instrument can be made to repeat, as will readily be seen in operating it, for as the key F is struck and driven down to give the full note it carries down withitthe post c, the lower end oi' which moves in the are of a circle and causes the regulator D to press against the jack a and shove its lower end oft' of the ledge e. Thelower end of the jack then strikes into the depression d in thelower key, E, causing that end to descend and its opposite end to rise, and the upper end of the jack D to strike againstits bearing in the cushioned notch ofthe hammer B, and to swingthe head oi the hammer against the string forgiving the note. As this is done the parts are i'orcedinto the position shown by the dotted lines marked j". \Vhen done, by letting up the pressure on the key F until it rises to the position of the dotted lines marked g, the end ot' the key E immediately under it will follow up the lower end oi' the jack a far enough to prevent its being returned to its place on the ledge c, and at the same time allow its opposite end to drop far enough to permit the upper end ofthe jack l) to again engage with the hammer, when the note can be repeated by again pressing upon the key F. As this can be readily and promptly done after allowing aslight upward movement of the keys, it is evident that a soft and delicate note can be secured as desired.
In addition to these improvements for rcpeating, the key-frame G is so arranged as to be transposed. As explained above, its rear end is hinged by means of eyes to ahorizontal rod, so that it may be moved or slid laterally. There may ofcourse be more or less of these eyes, and the pins or rods about which they turn and on which they slide may be connected to the box orfraine ol the instrument in any suitable manner. rlhere may be a single rod extending all the way accross, or it maybe in sections and attached at its ends, as shown in Fig.
To the front end of the key-frame is connected a pin, It, long enoughto extend through an elongated horizontal opening, Z, in the front otthebox, and drop into notches min the lower sido of said opening, as clearly shown in Fi g. 2.
Extending across the lower side of the keyi'rame G is a cross-piece, o, having its upper side cushioned and arranged so as to be under the arm p ot' the jack et, as shown in l, l'or a purpose hereinafter explained.
When it is desired to transpose the upper keys, F, so that their jacks a shall bear upon the next adjoining lower keys, E, or even iarther, it is only necessary to raise up the catchpin 7J, which causes the erossAbar 0 to bear against the arms p of the jacks a, and frees the feet ofthe jacks from theirbearings, and then to slide 'to key-framelaterally until the catchpin Y; can drop into another of the notches mf, these notches being on a line with the keys E. ln this way it will be seen that the key-frame can be readily transposed from one set ol' lower keys to another readily and conveniently.
As the catch-pin k projects a little beyond the face of the instrument,ahole orsocket may be made l'or it in theinner lace ol" the li d, both for the purpose of allowing the lid to lit close to the face of the instrument, and also for the purpose of holding the pin, and with it the key, iirm in position when the instrument is packed and being moved.
Having thus described my invention, what I elai in isl. The combination ol thekeys F, provided with the regulators b and pivoted jacks c, with the keys E, provided with the ledge c, constructed substantially s described, and l'or the purpose set forth.
The combination ol` the upper and lower keys, E and F, with thejaek c, pivoted to the former and between their l'ront ends, as and l'or the purpose set l'orth.
E). rhe key-trame G, haring its rear end attached to and arranged to slidelaterallyupon its connections, and its l'ront end provided with a eatclrpin, 7a, in combination with the opening Z, provided with the notehesm in thel'ront side ot' the case ot' the instrument, substantially as and i'or the purpose set l'orth.
4C. In combination with thekey-'rameG, arranged to move laterally, and having its keys F provided with the pivoted jacks a, the crossA bar o, as and i'or the purpose set forth.
llflllilhll) G. DAY.
Vitnesscs:
ll. B. Mum", lnjii.. T. Dones.
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013053862A1 (en) 2011-10-12 2013-04-18 Dialog Semiconductor Gmbh Controllers for solid state ligth bulb assemblies
EP2701294A1 (en) 2012-08-24 2014-02-26 Dialog Semiconductor GmbH Low current start up including power switch
EP2728969A1 (en) 2012-10-30 2014-05-07 Dialog Semiconductor GmbH PSRR control loop with configurable voltage feed forward compensation
EP2731405A1 (en) 2012-11-07 2014-05-14 Dialog Semiconductor GmbH Powerless bleeder
WO2014075816A1 (en) 2012-11-15 2014-05-22 Dialog Semiconductor Gmbh Supply voltage management
EP2830394A1 (en) 2013-07-24 2015-01-28 Dialog Semiconductor GmbH Programmable Phase-cut Dimmer Operation
EP2908604A1 (en) 2014-02-12 2015-08-19 Dialog Semiconductor (UK) Limited Dual switcher flyback structure for LED driver
US20180242742A1 (en) * 2017-02-24 2018-08-30 L&P Property Management Company All-linkage recline mechanism for high leg seating units
US10337182B1 (en) * 2017-08-04 2019-07-02 Duane R. Bender Toilet splash guard systems

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013053862A1 (en) 2011-10-12 2013-04-18 Dialog Semiconductor Gmbh Controllers for solid state ligth bulb assemblies
EP2701294A1 (en) 2012-08-24 2014-02-26 Dialog Semiconductor GmbH Low current start up including power switch
EP2728969A1 (en) 2012-10-30 2014-05-07 Dialog Semiconductor GmbH PSRR control loop with configurable voltage feed forward compensation
EP2731405A1 (en) 2012-11-07 2014-05-14 Dialog Semiconductor GmbH Powerless bleeder
WO2014072084A1 (en) 2012-11-07 2014-05-15 Dialog Semiconductor Gmbh Powerless bleeder
WO2014075816A1 (en) 2012-11-15 2014-05-22 Dialog Semiconductor Gmbh Supply voltage management
EP2830394A1 (en) 2013-07-24 2015-01-28 Dialog Semiconductor GmbH Programmable Phase-cut Dimmer Operation
EP2908604A1 (en) 2014-02-12 2015-08-19 Dialog Semiconductor (UK) Limited Dual switcher flyback structure for LED driver
US20180242742A1 (en) * 2017-02-24 2018-08-30 L&P Property Management Company All-linkage recline mechanism for high leg seating units
US10337182B1 (en) * 2017-08-04 2019-07-02 Duane R. Bender Toilet splash guard systems

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