Improvements in Leaf Turners for Music and the like.
Year: 1891

page_text: Date of Application, 14th Dec., 1891
Complete Specification Left, 3rd May, 1892-Accepted, 4th June. 1892
PROVISIONAL SPECIFICATION.
Improvements in Leaf Turners for Music and the like.
JOHN HALE of 7) Reelworth Street Kennington Road Lambeth, in the County
of Surrey Boot Maker, do hereby declare the nature of this invention to be as
follows
-
A narrow box is placed at the foot of open music, or other pages, running from
right to left, containing thin layers of papier mache, or other light material, these
are cut about half the length of the box, and fastened by a spring in a central
position, when released by the pressure of a button, they turn from right to left
carrying the page with them, this can be repeated until the whole of the layers are
used
up.
Dated this Lith day of Dash 1001
JOHN HALE.
COMPLETE SPECIFICATION.
Improvements in Leaf Turners for Music and the like.
I, JOHN HALE of 70 Reedworth Street, Kennington Road, in the County of
Surrey, Bootmaker, 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 apparatus for facilitating the turning over of leaves of
music, and for like purposes.
My improved leaf turner consists of three main parts, namely (1) a backboard or
frame with projecting ledges one of which is for the music and one for the
mechanism. (2) A series of arms with wires for turning the leaves, each furnished
with a spring; and (3) a sliding rack operating a detent finger and itself set in
motion by a lever and wedge.
I will now describe the invention with reference to the accompanying drawing in
which is shown a front elevation of the apparatus.
a, is the frame or backboard. b, is the ledge for the music. 6, denotes the
reversible brass leaf holders, which are turned upwards when in use.
C, is the lower ledge which sustains the meclianism. d, is the front arm of a
series of four or more arms, one behind the other.
At its top are connected several wires d', which are bent to the right and then
descend vertically and terminate in the hooks 2, in which the leaf is placed.
The other arins have similar wires which are not shown in order to avoid
confusing the drawing. The arms d, are hinged at d³, so that they fold forwards to
allow the leaves to be placed in position.
Below the hinge d³, is the heel piece d', on which is a small hook d, for receiving
the end of an india-rubber ring e, the other end of which passes round the small
roller f, and is attached to the vertical pin f'.
At the two ends of the roller f are the pivots de, d', on which the heel pieces *,
and arms d, work to and fro.
At the lower end of the heel piece d', is a series of steps or notches in which a
portion of each separate heel plate is seen, and is successively exposed to the action
of the detent finger g.
h, is a metal plate which forms the
the toothed rack i, slides to and fro.
vertical finger g.
base of the rack mechanism, and on which
The end of this rack is connected to the

page_text: j, are stops to define the limit of the rack's travel. k, k, are two staples forming
guides for the rack. 1, is a small bridge to which is hinged the lever m, furnished
with the handle m', and spring m².
Hanging from the lever m, and pivotted thereto is the wedge-shaped pawl m³,
which on the lever m being depressed, comes into contact with the projecting lug l,
and is thereby guided in its descent so that it engages with the left side of one of
the sloping teeth on the rack i, and thrusts the rack to the right, a sufficient
distance to cause the detent finger, to pass from one of the notches in the heel
pieces, to the next, and thus set free one of the arms d. The arm d, thus released
is compelled to turn over from right to left by the action of the spring e, taking
with it the leaf which it holds.
It will be understood from the foregoing description that the apparatus is almost
automatic in its action.
The manner of using it is as follows. The arms d, being bent forward, the piece
of music is laid on the frame a, and ledge b. The arms a, are then lifted one at a
time, and one of the leaves of the music is placed before each arm. If there are
more leaves than arms the foremost leaves are taken first, and when they have been
turned over, the remaining leaves are placed on the arms.
The number of arms can be increased to six or more if desired, but for ordinary
pianoforte use four will probably be sufficient.
!
When the music on the first page has been played and it is necessary to turn over
the leaf, all that is required is for the performer to press quickly and lightly on
the handle or a button at the end of the lever, when the pawl presses the sliding
rack one notch forward, and the finger releases the first arm, which being drawn
forward by the india-rubber spring turns over to the left side of the frame taking
the leaf with it. Meanwhile the spring m³, raises the lever to the disengaged
position ready for the next stroke. The working parts can be enclosed if
preferred.
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 I
claim is :-
In an apparatus for turning over the leaves of music and for like purposes, the
combination of the hinged arms d, with wires d', and heel-pieces ; the springs e,
and roller, the base plate h, sliding rack i, finger staples k, bridge 7, lug
lever m, pawl m³, and spring m²; and with or without a frame or backboard, or a
case or enclosure for same; as herein described and set forth.
Dated this 2nd day of Nov 1802
S. S. BROMHEAD,
97, Newgate Street, E.C., Patent Agent.