Music-Leaf Turner. Page: 4 of 5
[2], 3 p. : ill. ; 23 cm.View a full description of this patent.
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563,088
away at each end of the upper side, and se-
cured to thelower outer ends are springs 3131",
the free ends of which bear against the outer
ends 32 of the levers 29 or 29". These levers
are adapted to engage, respectively, with the
catches 12 and 13, according to which of them
is operated, the lever on the right engaging
with lugs 13, while that at the left engages
with the catches 12.
For the purpose of preventing more than
one of the hinged leaves being turned at one
time by the hooked levers, which would con-
sequently cause more than one music leaf or
sheet to be turned, I provide the following
means: Located at opposite sides of the
hinged leaves or plates above and below the
slots 14, respectively, are longitudinally-mov-
able bars 34 34", having lugs 36 at one end
which project through slots 37 in the plate 4.
The inner ends of these bars are formed with
arms 38 38, having notches 39 on their under
sides, forming hooks 40, which project over
the catches 12 and 13, respectively. These
arms 38 project through apertures in plate 4.
The lugs 36 and the slots 37 serve as guides
for the said bars, and the outer ends 36 are
pivotally connected with bars 41 41", which
extend to the opposite sides of the hinged
leaves and are connected with levers 42 421,
pivoted to a pin 42b, secured to the plate 4,
on opposite sides of the slots 14. Pivoted to
the upper ends of these levers 42 42, are le-
vers 43 43q, the outer ends of which are cut
away and work in guide-slots in lugs 45 45',
secured to the front of plate 4, while their
inner ends are formed with segmental heads
46, which lie in the paths of the catches 12
and 13, respectively, so that when one of said
hinged leaves or plates is operated to turn
the music-sheet the catch 12 or 13, according
to which direction the leaf or plate is turned,
will strike the said head of one lever forcing
it outwardly and causing the hooked bar 34
connected therewith to be pressed outwardly
uncovering the catch of the next hinged
plate.
Coiled springs 47 47a, connected with the
bars 41 and with arms 48 at each end, serve
to force the bars 34 inwardly, so that the
hooked ends thereof will project over the up-
turned catches of the hinged plates. Pivot-
ally connected with the lugs 36 of bars 34
are rods 4 , the inner ends of which are con-
nected with a hand-lever 50, pivoted to plate
4, by turning which the said bars can be
moved outwardly or away from the catches
12 and 13, so that any or all of the music-
sheets can be turned by hand.
The numeral 51 designates the music-
sheets, to which are secured rubber or other
elastic cords 10, which are connected with
the outer ends of the arms 8, and at the up-
per end of the cover of the music is a bent
wire 53, with which the opposite ends of said
cords engage.
The numeral 54 designates an upwardly-
extending rod having its lower end bent at aright angle and secured to the rack. The
music-leaves are confined between this rod
and the rack. 70
The numeral 56 designates turn buttons or
plates pivoted to the rack and adapted to be
turned over the cover or outside leaves of the
music in order to hold the same on the rack.
The operation is as follows: The cover or 75
outside leaves of the music are attached to
the rack by means of the wire and the turn-
buttons at the ends. The rubber loops are
then passed over the ends of the arms 8, and
the sheets and the arms and hinged plates or 8o
leaves are then turned over to the right of the
rack, so that the catches 12 will point back-
ward and catches 13 forward. These catches,
as before stated, are of varying length, and
project oppositely to each other, so that when 85
said hinged plates are superimposed upon one
another they will form a series of steps. The
hooked levers will now be in the position
shown in Fig. 3, and the bars 41 will be pushed
inward, causing the hooked end of bar 25 to 90
be drawn inward, so as to project over the
second notch 13 of the series. To turn one
of the sheets, the left pedal is depressed,
which through the medium of the rods 20
and bell-crank lever 18 will force the arm 15 95
at the left of the rack outward, carrying with
it the connecting-bar and hooked lever 29,
which will engage with the catch 12 on the
top hinged plate, turning it over to the oppo-
site side and also turning the arm 8 thereof ioo
and the music-sheet connected therewith, the
hooked bar 34 engaging with the catch 13 of
the next plate and holding the plate in place.
As said hinged plate is turned the catch 13
will strike the segmental head of the lever at 105
the left of the rack and through its connec-
tions will move the hooked bar 34 outward a
sufficient distance to uncover the said second
catch 13, so that when the pedal is again de-
pressed the second plate can be turned over, i To
and so on until all the leaves or plates are
turned. When a sheet has been turned as
above described, and the pedal released, the
spring at the back of the rackwill return the
hooked lever to normal position, readyto turn 15
another plate, when the pedal is again de-
pressed. By depressing the pedal at the right
of the machine, the hinged plates, their arms,
and the music-sheets at the left can be turned
in a similar manner. 120
Bythe construction and arrangement of the
hooked levers and the springs the hooked ends
of the levers will bear with but comparatively
slight pressure on the hinged leaves at the
commencement of the stroke, which pressure 125
will be gradually increased by reason of the
lever turning on its pivot as the movement of
the lever continues, so that the greatest pres-
sure will come on the lever as it finishes the
stroke. 230
Having thus fully described my invention,
what I claim is--
1. In a music-leaf turner, the combination
with the rack,; the hinged plates provided
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Stinson, James C. Music-Leaf Turner., patent, June 30, 1896; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth174311/m1/4/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.