IMPROVED APPARATUS FOR TURNING OVER THE LEAVES OF MUSIC
Year: 1884

page_text: I ERNESTO QUATTARI of 91 Shirland Gardens, Paddington, in the County of
Middlesex, Designer, do hereby declare the nature of the said Invention for
"IMPROVED APPARATUS FOR TURNING OVER THE LEAVES OF MUSIC" to be as
follows:-
My Invention relates to an improved apparatus for turning over the leaves of
music which is of simple and inexpensive construction and capable of being readily
applied to any music (lesk.
The apparatus consists of a series of spring arms fixed on a vertical rod and
lying in the same horizontal plane. These arms are of spring steel near their
point of fixture so as to have sufficient flexibility to enable them to be bent round
a fixed stud and sufficient clasticity to return to their normal or straight position
when released. In the former or "set" position the arms are directed to the right
hand side of the desk, and in order to release them in succession and allow them to
be thrown completely over towards the left, carrying with them the leaves to
which they are attached, I combine with these self acting spring arms an
escapement whereby the arms can only be released one at a time-at required
moments. This escapement consists of an anchor pivoted to a suitable support
and oscillated by a pendent lever. It is held in position by springs and its
extremities are so disposed relatively to the arms above referred to, that when
the one is withdrawn by the oscillation of the anchor to release the first in order
of the arms, the other retains the succeeding arms until the escapement has
returned to its normal position. The releasing end of the anchor is provided with
a bevelled nib to permit of the arms passing it readily in setting the apparatus for
use and the frame to which the escapement is pivoted is provided with a support
upon which the spring arms slide so as to ensure their uniformity of position with
regard to the escapement.
The rod to which the arms are attached passes up behind the music and is
furnished with a spring clip between which and the rod the music is held at the
hinge or point on which the leaves turn, thus supporting the music at a proper
height and holding loose music in position on the desk.
The turning arms are attached to the leaves of music by spring clips nipping the
paper and attached to the arms by flexible connections.

page_text: I ERNESTO GUATTARI of 91 Shirland Gardens, Paddington, in the County of
Middlesex, Designer do hereby declare the nature of the said Invention for
"IMPROVED APPARATUS FOR TURNING OVER THE LEAVES OF MUSIC," and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
My Invention relates to an improved apparatus for turning over the leaves of
music which is of simple and inexpensive construction and capable of being readily
applied to any music desk.
The apparatus consists essentially of a series of arms in combination with an
escapement. These arms are arranged in front of one another and secured by one
end to a common fixed point. In their normal position they are all directed
Lowards the left but they have sufficient elasticity near their point of -fixture to
enable them to be bent completely round to the right, and to cause them to return
to their normal or straight position when released; and to carry over with thein
the leaves of music to which they are attached. These arms are retained in their
act position and are released in succession by means of an anchor escapement
oscillated at required times by striking a pendent lever whereby the arms are
released one at a time. This escapement consists of an anchor pivoted to a
suitable support and oscillated by a pendent lever. Its extremities are so disposod
relatively to the arms that when the one is withdrawn (by oscillating the anchor)
to release the first, in order, of the arms, the other retains the succeeding arms
until the escapement has returned to its normal position.
The turning arms are respectively attached by spring clips to the separate leaves
of music, which are carried over to the left by the arms as they are released in
succession by the escapement.
The music is, whether loose or bound, supported in proper position on the desk
by being held (at the hinge or point on which the leaves turn) between a rod and
spring clip which, as well as the lever for operating the escapement, may be folded
within the fall of the piano when not in use.
In order that the Invention may be more readily understood I have illustrated
it in the accompanying Drawings forming part of this Specification, and will
proceed to describe it with reference thoreto.
Figure 1 is a front elevation. Figure 2 is an end elevation and Figure 3 a plan
of the apparatus as applied for use, part of the arms and leaves being represented
as already turned. Figure 4 represents the apparatus folded up, and Figures 5. 6.
7 and 8 represent details of the escapement.
a² a² σ³ a² a² àª² are the turning arms all fixed by one end to the rear side of a
short vertical stud a carried upon the base plate B. These arms lie on edge and in
front of one another and, for a distance of about 2 inches from their point of
fixture, they are made of spring steel (the remainder being rigid) so as to enable
them to be bent round to the right as those a and a' are in Figure 3.
Each arm a', &c., has a spring clip c pivoted to it near its end by.which a music
leaf A is held as shown.
The base plate B has guards b b' at either end, beneath which the arms a², &c.,
pass, and at the right hand end of the base plate is mounted an escapement by

page_text: which the arms a', &c., are retained in their set position. e is the anchor
escapement pivoted at e beneath the base plate B, and having bovolled extremities
ee which project upwards through slots in the base plate B.
The anchor is held in the inclined position shown in Figure 1 by a spring f, and
is provided with a pendent handle E by striking which the anchor is oscillated to
release the next in order (a) of the arms. The extremities e¹ e are bevelled and
in different planes, so that, when the anchor is so oscillated, the extremity e' will
rise between the next arm a and the following one a7 as in Figures 5 and 6 and
so retain all the 'succeeding arms before the next in order is released by the
extremity The operation of releasing an arm a is instantaneous being effected
by merely striking the lover E to the left without seizing it, the lover being
immediately returned to its normal position by the spring f, the extremity e
thereupon rising in front of the arm (a) which was previously retained by the
extremity c¹ as shown in Figures 7 and 8. The escapement is then in readiness to
release another arm on the lever E being again moved to the left.
The music A is clipped between a vertical rod y in front and springs hat back,
both rod and springs being carried by a plate i which, for convenience of folding
the apparatus within the fall of the pianoforte, is hinged at ¹ to the base plate B.
In order to avoid obstructing the arms a¹, &c. in their motion from one side to
the other it is necessary that the rod g and clip should be supported wholly
above the path of the arms a, and to compensate for the difference of radius of the
arms when straight and bent, it is necessary that the rod g should be to the left of
the point of fixture of the arms a³, &c. For this reason the supporting plate i of
the rod is of the angled form shown and is hinged to plate B at the right hand
side of the stud a to which the arms aro attached and extends over said stud
towards the left as shown.
When the apparatus is in use this plate is locked in position by a latch K.
To permit of folding the apparatus the lever E is jointed at e³ by a rule joint so
as to fold up in the one direction only as in Figure 4 and the guard bis pivoted
to the base plate so as to answer also as a button to retain the rod g when folded
down.
The whole apparatus is readily secured to an ordinary music desk or other
support by clip at the ends of the base plate B or by any other convenient
incans.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
1 claim is:
1st The apparatus for turning over the leaves of music constructed, arranged,
and combined for operation substantially as herein described and shown in the
Drawings.
2nd An apparatus for turning over the leaves of music consisting, essentially, of
spring arms (provided with means of attachment to the music leaves) said arms
being made partly flexible, fixed by one end to a common point arranged in front
of one another so as to work in the same plane, and combined with a suitable
escapement for releasing them in succession one at a time, substantially as
specified.
3rd The combination with the spring arms constructed and arranged for
operation as herein described and provided with suitable means of attachment
to the music leaves, of the anchor escapement constructed and operating
substantially as shown and described for the purpose specified.
4 The combination with the spring arms constructed and arranged for
operation as herein described, their attachments, and the escapement for releasing
them, of the supporting rod and spring clip for holding the music in place arranged
in relation to the spring arms, substantially as herein shown and described.

page_text: "
5 The apparatus for turning over the leaves of music constructed for operation
substantially as herein shown and described, and arranged to fold within the fall of
the pianoforte substantially as shown and described.