close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2105739

код для вставки
Jan. 18, 1938.
M. v. JACOBS H‘ AL
2,105,739
PIANOFORTE
Filed Aug. 51, 1936
g4
INVENTORS
41%“? M
Wimp‘ 6M‘
2,105,739
Patented Jan. 18, 1938
UNITED STATES PATENT OFFICE
2,105,739
PIANOFORTE
Mordecai Victor Jacobs and Herbert Spencer
Bird, London, England, assignors to Mordecai
Victor Jacobs and Michael Kemble, London,
England
Application August 3-1, 1936-, Serial No. 98,700
In Great Britain January 23, 1936
3 Claims.
(01. 84—180)
This invention is for improvements in music
rests for pianofortes and like instruments of the
kind in which the keyboard lid is very short from
the hinge to the front, and very near to the keys
5 when in its closed position, so that it is im
possible to use the open lid alone as a support for
a book or sheet of music.
According to one feature of the present in
vention a music~rest for a pianoforte or like in
strument of the kind described comprises one or
more supporting members pivoted to the lid at or
near its forward edge so as to be extensible up
wardly when the lid is open. The music-rest
may be constituted by the said members alone or
15
in co-operation with the lid. Preferably the
members lie flush with the extreme edge of the lid
when in their closed position.
The invention is especially applicable to minia
ture pianos in which the keyboard lid lies near
the top of the instrument because, in pianos. of
this kind, the casing at the rear of the keyboard
does not project upwardly by a sufficient height
to form a rest for a music-desk.
In some minia
ture pianos the top of the casing lies flush with
the keyboard lid and in others it projects up
wardly by a short distance.
A speci?c embodiment of the present inven
tion will now be described by way of example
with reference to the accompanying drawing in
which:
Figure l is a front elevation of a piano with the
lid open and the music-desk extended upwardly
for use.
Figure 2 is an end elevation to a larger scale
than Figure 1.
Figure 3 is a front elevation of the piano with
the lid closed, and
Figure 4 is a detail view of one member of
the music~rest.
As shown in the drawing, the piano comprises
a main casing l0 and a keyboard I I having a key
board lid hinged to the ?xed structure of the piano
at l2 (Figure 2).
The lid comprises a portion l3 which is sub
stantially horizontal when the lid is closed and is
therefore termed the “horizontal” portion, and
a shorter portion M which, for a like reason, is
termed the “vertical” portion. It will be seen
that the lid is very short from front to back and
that the top l5 of the casing ill which rises above
the keyboard level is even shorter, so that special
provision has to be made for supporting the music
as will now be described.
Along the bottom edge of the vertical portion
IA of the lid are two recesses I6, I‘! (see Figure 3)
in each of which a strip of wood or metal I8 is
pivoted as shown in Figures 1 and 4 about pivot
pins 25. Each strip is formed with a curved end
l9 adapted to abut against an end wall 20 of
similar
shape in the recess so that when the
60
music-rest is not in use the strips are folded into
the position shown in full lines in Figure 4. In
this position each strip is of the same width and
thickness as the edge of the lid l4 so that it is
hardly noticeable when the lid is shut as shown
in Figure 3. When the music-rest is required for
use, the two strips l8 are folded upwardly into
the position shown in Figure 1, their upward
movement being limited by the ends of the un
recessed portion 2| of the edge of the lid. As 1O
shown in Figure 2, a book or sheet of music 22
can be supported on a ledge 23 of usual form
hinged to the inside of the lid l4 and the upper
part of the music will rest against upwardly
15
extending strips [8.
We claim:
1. A keyboard lid for a miniature piano hav
ing a horizontal portion, a ledge carried by said
horizontal portion, and a vertical front wall por
tion terminating in a bottom edge, the bottom 20
edge being provided with elongated recesses, and
a strip pivotally secured in each recess and mov
able from a position parallel with the edge to a
position perpendicular to the edge so that when
the lid is raised, each strip will extend upwardly 25
beyond the vertical front wall, to constitute the
back of a music desk of which the said ledge con
stitutes the base.
2. In a miniature pianoforte the combination
of a keyboard lid, a hinge connecting the lid and 30
the pianoforte, said lid comprising a horizontal
portion, a vertical front wall and a bottom edge to
said front wall, which edge is formed with recesses
of the same width as the thickness of the front
wall, a ledge carried by the said lid adjacent the 35
hinge connection and distant from the front wall,
strips of rigid material, each of substantially the
same dimensions as said recesses, so as to occupy
said recesses when the lid is closed, and a ver
tical pivot connecting each said strip to said 40
vertical wall so that each strip, when the lid is
raised, is movable into a position in which it ex
tends upwardly beyond the said front wall in
which position it constitutes the back of a music
desk of which the said ledge constitutes the base. 45
3. In a miniature pianoforte the combination
with a hinged keyboard lid comprising a hori
zontal portion, a ledge carried by said horizontal
portion, a vertical portion, a bottom edge to said
vertical portion, and recesses in said edge, of 50
strips of rigid material received in said recesses,
each strip being pivotally secured to said vertical
portion adjacent the edge thereof so that each
strip may be moved when the lid is raised into a
position in which it extends upwardly beyond 55
said structural portion, in which position it com
stitutes the back of a music desk of which the
said ledge constitutes the base.
MORDECAI VICTOR JACOBS.
HERBERT SPENCER BIRD.
60
Документ
Категория
Без категории
Просмотров
0
Размер файла
200 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа