Improvements in Devices for Turning Over the Leaves of Music and the like.
Year: 1899

page_text: Date of Application, 4th Nov., 1899
Complete Specification Left, 1st Aug., 1900-Accepted, 29th Sept., 1900
PROVISIONAL SPECIFICATION.
Improvements in Devices for Turning Over the Leaves of Music
and the like.
I, ROBERT JESSE Ross, of 25, Exeter Road, Bootle, in the County of Lancaster,
Timber Salesman, do hereby declare the nature of this invention to be as
follows
This invention has for its object a method of and apparatus for turning over
the leaves of music and the like by the simple pressing of a handle oi tieadle
My apparatus comprises a cential support or tanie at the back of the book
the leaves of which are to be turned Above or below the book on this central
support is an arm pivoted to the same and actuated by a spring in such a manner
that normally the arm lies flat against the back or 11ame on which the book 18
supported on the right hand side, but which can be forcibly brought back so as to
he Hat on the left hand side, and by means of a clip to take a leaf of the book over
with it Going more into detail the aim is formed with two barrels or hollow
tubes one above the other in which tubes are sliding pieces actuated by springs
The sliding piece in the upper tube which is held normally in its extended
position by a sping is enlarged at its end and forms the upper portion of a
gupping device to gip the clip, the other and underneath portion of the gupping
device consisting of a nation stup of metal on the end of a rod sliding in the
underneath tube, which stip is normally held in its withdiawn position by
means of a spring To the end of this strip nearest the pivot of the arm a cord
is attached which passes fist over a pulley fixed to the aim and then over a
pulley fixed on the end of the aim and through which pulley the fixed axle
passes on which the arm tuins The cold afterwards passes 1ound another pulley
fixed to the fame and from thence to the operating headle or lever
is wound round the fixed pivot, one of its ends being attached to the arm and
the other to any fixed object and its function being to keep the arm in a flat
position on the right hand side The sliding piece in the upper tube is provided
with a pin projecting on the outside to which pin is attached a cord, the other
end of such cord being attached to a fixed part of the frame and so arranged
that when the aim is in its normal position, that 18 on the right hand side, the
cord will be slack and therefore operative, but when the aim is brought over
to the left hand side the cord is drawn tight and pulls in the upper sliding
piece against the pressure of its sping A spring clip is provided for each leaf
having holes which fit on pins on the frame and arranged one above the other,
the gripping device on the arm being adapted to engage each clip in succession.
The mode of action is as follows
A spring
A number of clips corresponding to the number of leaves to be turned over are
placed one above the other on the fixed pins attached to the frame on the right
hand side and the leaves fastened successively to the chips The arm in its
normal position rests with the enlarged end of the upper sliding piece on the top
of the uppermost clip and on the treadle or lever being pressed down the strip
of metal in the lower tube is forced out against the pressure of its spring and

page_text: underneath the uppermost clip, thereby in conjunction with the uppermost piece
gipping it.
On further pressing down the treadle or lever the arm with the
clip, and a leaf carried by it, is brought over to the left hand side, such movement
causing the cord attached to the upper sliding piece which is now underneath
the clip to tighten and draw back the piece thereby freeing the arm from the
clip, which aim then flies back by means of its spring and the parts resume
their normal position ready to take over another leaf and so on until all the
leaves have been turned over In another arrangement I provide a series of
pivoted arms actuated by springs in such a manner that normally they lie flat
against the back on the left hand side but which can be forcibly brought back
so as to lie flat on the right hand side. Each of these arms has a finger placed
at the back of the page to be opened, or in place of the fingers, clips holding
the pages can be used
The aims are each kept in position by pivoted or longitudinal sliding triggers
having claws at the end, these tuggers being consecutively operated by the
treadle or lever each time it is desired to turn over a leaf
The spring arma
themselves moreover have projecting eyelets which are adapted to be engaged by
these claws at the end of the sliding tuggers Immediately therefore these
claws disengage the eyelets the aims will fly over and this liberation is effected
by means of a wheel having pins arranged in a circle on its face, and on the
periphery of the wheel is fixed one or more rollers according to the size of the
wheel, which rollers as the wheel revolves come in contact with the sliding
triggers or catches, thereby liberating each arm in succession, for as soon as one
roller has passed the ends of the catches the next 1olle 18 ready to commence
the operation again
Dated this 25th dox of Ontahan 1900
WM P. THOMPSON & Co,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant
Improvements in Devices for Turning Over the Leaves of Music
and the like.
I, ROBERT JESSE Ross, of 25, Exeter Road, Bootle, in the County of Lancaster,
Timber Salesman, 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 has for its object improvements in apparatus or devices for
turning over the leaves of music and the like.
The apparatus comprises mainly a frame which may be in one with the
music or book rest or it may be attached to the ledge of the ordinary music rest.
Above or below the book the leaves of which are to be turned over, an arm is
pivoted to the frame, such arm normally lying flat against the frame on the right
hand side but which can by simply pressing a treadle or lever be forcibly turned
so as to lie flat on the left hand side, and by means of suitable clips to take a
leaf of the book over with it, such arm returning, on the release of the treadle
or lever to its normal position ready to take over another leaf
Referring to the accompanying drawings
Figure is a front elevation of the apparatus with a book in position
Figure 2 an enlarged underneath plan partly in section of a portion of
Timura 1

page_text: Figure 3 a front elevation of Figure 2;
Figure 4 an underneath plan of a portion of the apparatus showing the arm
turned back,
Figure 5 a view showing one of the clips engaging a leaf, and
Figure 6 a detail view of a brake or retarding device hereinafter described
The
In these a is part of a frame which may be the ledge of a book rest or it may
in combination with the part 6 be a separate frame which can be attached to
the ledge of an ordinary book rest auch frame carrying the apparatus or devices
for turning over the leaves of the book 18 a clip or catch for keeping the
book in position on the rest, which catch may be of any suitable pattern.
d is the pivoted aim which turns on a fixed axle e mounted in the frame b, or
the aim may be fixed on the axle, the latter being free to tuin, and f a sping
coiled 1ound the axle in a manner well known The tendency of this spring is
to keep the arm in the position shown in Figure 1 The arm is formed with
two barrels or tubes g and h in which slide rods actuated by springs k!
rod shown uppermost in Figure 2 which is held normally by spring in its
extended position is enlarged at its end m and forms one part of a gripping
device to grip the clips n, and the sliding rod which forms the other portion
is flattened at its end and 18 held normally by its spring in its withdrawn
position. To a projecting piece p on the end of the rod a cold or wire q 18
attached which passes first over a pulley r thence over a second pulley s mounted
in the forked end of the arm d both turning together on the axle e and round a
thud pulley to the operating treadle or lever not shown
The rod sliding in the tube 18 provided with a pin u to which is attached
one end of a rod v, its other end being attached to a pin te so as to be eccentric to
the axis of the arm d The spring clips n shown best in Figure 5, have holes r
which fit on pins y fixed to the frame 2 18 a springy piece of metal projecting
horizontally from b and shown best in Figure 6 Its enlarged end is fixed in
the path of the projecting piece p on the end of the sliding iod 2, and is cham-
fered on front side, (not at rear) so that the projection as it moves with the
arm d from night to left, as when turning a leaf over, pushes aside the piece
into the position shown in dotted lines, but on its return from left to right such
projection coming against the rear of the enlarged end of piece z bears against
it, thus retarding the speed of the arm d and preventing it flying back too
apidly under the influence of the spring f In order to keep the leaves down
which have been turned over I provide a spring actuated arm 1 which rests
normally on the leaves of the book but by means of a cold or wire 2 fixed to a
pulley 3 and passing 1ound pulley 4 and thence to the operating treadle oi lever
the arm 18 turned out of the way whilst a leaf is being turned over, but returns
instantly on the pressure being taken off the treadle 5 18 a stationary spring
clip which can turn on a pivot 6 7 is a pivoted catch or support for holding
the aim d in a raised position to facilitate the threading of the spring clamps n
on the pins
8 a projecting piece carried by the aim d which prevents any
possibility of a spring clamp being taken back again with the aim
a leaf of the book
I;
9 represents
The mode of action of the whole apparatus is as follows
A number of clips n corresponding to the number of leaves to be turned over
are placed one above the other on the fixed pins Y on the right hand side, and
If there be more leaves in the book than 18
one clip is sprung on to each leaf
equired to be tuined over, they are held down by the stationary spring clip 5,
Figure 1 The arm d in its normal position is held by the spring in the
position shown in Figures 1, 2 and 3 with the enlarged end m of the sliding
piece on the top of the uppermost clip, held in this position by spring 1, the
Now if the treadle or lever to which the cords
arm 1 also bearing on the book
o wires g and 2 are attached be depressed, the cords or wues q and 2 will be
both operated simultaneously, the cord 9 operating the arm d and rod i, and
the cord 2 operating the arm 1 As however the spring f is of greater strength

page_text: or resistance than the spring k, the pulling of the cords will first slide out the
1od into engagement with the clip n, and thus in conjunction with the sliding
end piece m gupping it, the same movement of treadle causing the arm 1 to
commence to move As soon as the rod has travelled as far as it will go then
the further pressing down of the treadle necessarily turns the aim (with the
clip and a leaf attached to it) rapidly from 1ight to left The same movement
causes the arm 1 to move away quite clear of the book At the same time
the rod as it does not turn on the same centre as the arm d causes the sliding
1od to be withdiawn as shown in Figure 4 On releasing the treadle the parts
fly back into the former position, the rod sliding back, thus freeing the clip,
which remained attached to the leaf, the arm & turning back from left to right
by the pressure of its spring f and the arm 1 turning over so as to press down
the leaf of the book The several parta in fact assume their normal positions
ready to turn over another leaf and so on until all the clips have been used up
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
I claim 18-
1 An apparatus to turning over leaves of music, comprising a pivoted sping-
controlled arm or caller located in proximity to the ledge of the music rest,
clips, one of each of which is sprung on to a leaf of the music to be turned, and
means for causing the pivoted aim or carrier at each depression of the treadle
to first engage with the clips and then rotate half a turn in such a manner as
to turn the leaf, while the release of the treadle will instantly disconnect the
pivoted lever from the clip and enable the pivoted arm to swing back ready for
à repetition of the operation, substantially as described
2 In an apparatus for tuining leaves of music, a spring-controlled pivoted
aim or carrier for engaging the clips that are attached to the loaves of the
music and which is swung over by means of a lever or treadle, said pivoted
arm or cairiel comprising a sliding rod held normally in its extended position
in contact with the outermost clip, a second sliding rod held normally in its
withdrawn position so as to be out of engagement with the clip but adapted to
be thrown into engagement and hold the clip in conjunction with the other rod
immediately the treadle is depressed to swing over the arm, and means for
releasing the hold of the respective rods on the clip immediately the carrier has
been swung over, or the foice that swung it over is released, substantially as
described.
3 In an apparatus for turning over leaves of music, or the like, the combina-
tion with a moving arm or carrier adapted to engage spring clips threaded on
stationary pins, and clipped to the leaves of a hinged arm which is held normally
by means of a spring against the turned over leaf, and means whereby said arm
18 moved away while another leaf is being turned over, and moved back when
the turning is completed, substantially as set forth
4 In a leaf tuner in combination with a pivoted arm having a return spring,
a gripping device consisting of two rods sliding in tubes or barrels on the said
arm, springs in the tubes acting against the rods so as to keep one in its extended
position normally and the other in its withdrawn position, a rod attached at
one end to the upper or extended sliding 1od, its other end being pivoted to
the frame so as to be eccentric to the centre of oscillation of the arm whereby
on operating a treadle or lever the lower rod is thrust out and after the movement
of the arm to the opposite side both 1ods are withdrawn as set forth
5 In a leaf turner the Fombination with a music rest of an aim pivoted
thereto, a gripping device on the end of the arm, spring clips engaging the
leaves of the music and being gripped by the device on the end of the pivoted
arm and means for operating the gripping device and the arm so as to turn over
a leaf as set forth
6 In a leaf turner the combination with a moving arm for turning over

page_text: the leaves, of a retarding device whereby the arm when returning under the
influence of a strong spring after turning over a leaf 18 retarded or prevented
from flying back at too great a speed as set forth.
7 In a leaf turner the combination of the arm with its gripping device,
clamps n, stationary pins y, retarding device z and p, arm 1 with its pulley and
spring, cords or wires 2 and q and pulleys for the purposes described
8 The apparatus for turning over leaves of music and the like, constructed,
arranged and operating substantially as hereinbefore described, with reference
to and shown in the drawings annexed.
D
1
L
.
1000
WM. P. THOMPSON & Co,
Patent Agents of Liverpool, Manchester, Birmingham & London