Improvements in Apparatus for Turning Over Music and other Leaves.
Year: 1891

page_text: Date of Application, 11th Aug., 1891
Complete Specification Left, 11th May, 1892-Accepted, 18th June, 1892
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Turning Over Music and other
Leaves.
I HENRY ALBERT JEE, of 358 Kennington Road, Lambeth, in the County of
Surrey, Musical Artist, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in apparatus for turning over music and
other leaves whether placed on the music stand of a pianoforte or upon orchestral
or other stands; it consists essentially of a series of leaf turning levers, wires or
needles, each carried by a roller or pulley and operated to turn a leaf by a spring
which on the removal of a bearing from beneath the short arm of the lever pulls
over its long arm and with it the leaf to which it is connected; my invention also
comprises an arrangement whereby various sizes of music sheet may be securely
held upon the stand; also a means of retaining each succeeding page in position
and releasing it automatically when it is to be turned over.
The stand may be an open frame or a simple board or plate; in the centre of
this stand, extending nearly from top to bottom I arrange a sliding bar or rod
having a rack on one of its sides at or near the top and another rack lower down
projecting at the back of the stand. On the back of the stand I also secure a
lever so arranged that it will gear with the teeth of the lower rack, and from this
lever pass a cord or wire over a pulley and thence to a handle or lever suitably
placed on the front of the stand, or to a pedal placed in any convenient position.
The sliding bar also carries a raised piece, or projects on the face of the stand,
forming a bearing for the short arm of the leaf turning levers. Parallel with this
bearing is a fixed spindle supported on suitable standards on the face of the stand
and carrying a number of rollers or pulleys corresponding with the number of leaf
turning levers each of which passes through a pulley and rests by its short arm
upon the aforesaid bearing, its long arm running parallel with the top of the music
stand and having a clip of any suitable kind to connect it with a leaf of music to
be turned. Partly around each of the aforesaid pulleys and over on to each of the
long arms of the leaf turning levers, close against the pulley,
pass an elastic
band or cord, or otherwise bring pressure upon the leaf turning lever at this point.
1 give preference to an elastic cord as being more readily replaced than a metallic
spring. At the top of the stand place a spring pawl to gear into the top rack
and prevent the return of the sliding rod after each movement in turning a leaf,
and I may also attach a piece of elastic or other spring arrangement to the lever
working in the lower rack to keep it always in gear.
The action is as follows:-Assuming the sliding bar to be at its lowest position,
the working lever being in gear with the uppermost tooth of the lower rack, the
spring pawl at the top being in gear with the upper tooth of the top rack and each
leaf turning lever resting by its short arm upon the bearing carried by the sliding
bar, its long arm being connected with a leaf of music by its clip. Upon pressing
down the starting handle or pedal, the cord connecting it with the working lever
in the lower rack will cause the lever to move the sliding bar to the extent of one
tooth of the rack thereby moving to the same extent the bearing supporting the
short arm of a leaf turning lever which will then be thrown over by the elastic
spring attached to the long arm and carry with it the leaf of music to which it is
clipped, the pawl at the top of the stand taking into another tooth of its rack and
preventing the return of the sliding rod. This movement is repeated as required
according to the number of leaves to be turned.

page_text: To enable the stand to receive pieces of music of various sizes I make the
supporting shelf so that it may be raised or lowered at pleasure, either by hooks
taking into holes at suitable distances apart, or otherwise; and I may keep down
the leaf which is to be next turned by a weight or a clip which will yield to the
pull of the turning lever and pass automatically, or be put on to the succeeding leaf
to be turned.
I may make the several parts of my apparatus of any suitable material and I
may use other known mechanical means of actuating the sliding bar while retaining
the characteristic feature of my invention.
COMPLETE SPECIFICATION.
Improvements in Apparatus_for Turning Over Music and other
Leaves.
I HENRY ALBERT JEE, of 358 Kennington Road, Lambeth, in the County of
Surrey, Musical Artist, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement:-
This invention relates to improvements in apparatus for turning over music and
other leaves whether placed on the music stand of a pianoforte or upon orchestral
or other stands; it consists essentially of a series of leaf turning levers, wires or
needles, each carried by a roller or pulley and operated to turn a leaf by a spring
which on the removal of a bearing from beneath the short arm of the lever pulls
over its long arm and with it the leaf to which it is connected; my invention also
comprises an arrangement whereby various sizes of music sheet may be securely
held upon the stand; also a means of retaining each succeeding page in position
and releasing it automatically when it is to be turned over.
Upon the accompanying sheet of drawing :-
Figure represents a front view or elevation of an apparatus embodying my
invention;
Figure 2 being a back view of the same and
Figure 3 illustrates a modification in which the leaf turning levers are arranged
so as to clip the music at the sides of the leaves.
A being the stand,
B is the sliding bar, stop or raised piece on same,
Cupper rack,
D lower rack,
E lever engaging with lower rack,
Fcord attached to same,
G pulley carrying cord,
H handle, lever or pedal for operating levers,
I levers for turning leaves, i short arms of same,
K fixed spindle or axle, k rollers or pulleys,
L clip for holding leaves,
M elastic band or cord for throwing over lever I. m cord or band holding down
music sheet,
*
N spring pawl for retaining sliding bar in position. !
The stand A may be an open frame or a simple board or plate; in the centre
of this stand, extending nearly from top to bottom I arrange a sliding bar Bor
rod having a rack C on one of its sides at or near the top and another rack D

page_text: lower down projecting at the back of the stand. On the back of the stand 1 also
sécure a lever E so arranged that it will gear with the teeth of the lower rack D,
and from this lever I pass a cord For wire over a pulley G and thence to a
handle or lever H suitably placed on the front of the stand A or to a pedal placed
in any convenient position. The sliding bar B also carries a raised piece, or
projects on the face of the stand, forming a bearing for the short armi of the
leaf turning levers I. Parallel with this bearing is a fixed spindle K supported
on suitable standards on the face of the stand A and carrying a number of rollers
or pulleys corresponding with the number of leaf turning levers I each of which
passes through a pulley and rests by its short arm upon the aforesaid bearing b,
its long arm running parallel with the top of the music stand and having a clip L
of any suitable kind to connect it with a leaf of music to be turned. Partly
around each of the aforesaid pulleys and over on to each of the long arms of the
leaf turning levers 1, close against the pulley, I pass an elastic band or cord M,
or otherwise bring pressure upon the leaf turning. lever at this point. I give
preference to an elastic cord as being more readily replaced than a metallic spring.
At the top of the stand I place a spring pawl N to gear into the top rack and
prevent the return of the sliding rod B after each movement in turning a leaf, and
may also attach a piece of elastic or other spring arrangement to the lever working
in the lower rack to keep it always in gear.
The action is as follows:-Assuming the sliding bar B to be at its lowest
position, the working lever E being in gear with the uppermost tooth of the lower
rack D, the spring pawl N at the top being in gear with the upper tooth of the
top rack C and each leaf turning lever I resting by its short arm i upon the
bearing carried by the sliding bar B, its long arm I being connected with a leaf
of music by its clip L. Upon pressing down the starting handle or pedal H, the
cord F connecting it with the working lever E in the lower rack D will cause the
lever to move the sliding bar B to the extent of one tooth of the rack thereby
moving to the same extent the bearing supporting the short arm of a leaf
turning lever I which will then be thrown over by the elastic spring M attached
to the long arm and carry with it the leaf of music to which it is clipped, the
pawl N at the top of the stand A taking into another tooth of its rack and
preventing the return of the sliding rod B. This movement is repeated as required
according to the number of leaves to be turned.
To enable the stand to receive pieces of music of various sizes I make the
supporting shelf so that it may be raised or lowered at pleasure, either by hooks
taking into holes at suitable distances apart or otherwise; and I may keep down
the leaf which is to be next turned by a weight or a clip which will yield to the
pull of the turning lever and pass automatically, or be put on to the succeeding
leaf to be turned.
I may clip the music sheets at the sides of the leaves as illustrated Figure 3,
or I may pass wires from the levers between the leaves, or bend these levers so
that they may pass down between the leaves.
may make the several parts of my apparatus of any suitable material and I
may use other known mechanical means of actuating the sliding bar while retaining
the characteristic features of my invention.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what 1
claim is :-
:-
1. An apparatus for turning over music and other leaves consisting of a number
of pivoting levers corresponding to the number of leaves to be turned and con-
nected therewith by fastenings or by simply interleaving, a bearing supporting the
short end of each lever, means of removing this bearing from beneath each lever
successively, and means of pulling over the leaf turning levers, all substantially as
hereinbefore described.

page_text: 2. An apparatus for turning over music and other leaves constructed, combined
and arranged to operate substantially as herein before described with reference to
the accompanying drawing.
1
131
1000