IMPROVEMENTS IN APPARATUS OR APPLIANCES FOR TURNING OVER THE LEAVES OF MUSIC AND OTHER LEAVES to be as follows:-
Year: 1884

page_text: I, ROBERT HENRY PADBURY of 24 Mildmay Grove, Stoke Newington in the
County of Middlesex, Engineer do hereby declare the nature of said invention for
"IMPROVEMENTS IN APPARATUS OR APPLIANCES FOR TURNING OVER THE LEAVES
OF MUSIC AND OTHER LEAVES to be as follows:-
"
My present invention especially refers to improvements upon or additions to an
invention for which Letters Patent were granted to me the 5th February 1881
N° 501.
The first improvement refers to the construction of the apparatus in such a
manner that it will hold a thick bound book as well as a thin one and to
accomplish this instead of fixing an ornainental back to the apparatus as specified
and illustrated at Figure 1 and marked in the Specification of the Patent before
referred to so that the back is allowed or caused to swing or slide back away from
the box thus leaving a space between the flyers and the back to suit various
thicknesses of books.
I also provide a sliding clasp which may be made double or single. The frame
of clasp slides in slots or recesses formed in the bottom of the box and by means of
a spring or springs I obtain an even sliding movement so that by the aid of the
sliding clasp and sliding back when the appliance is fixed firmly to the rest of
piano or music stand the box containing the mechanism can easily be brought
forward leaving the clasp and back behind in order to adjust it to the thickness of
the book used. I likewise make a new centre post which slides or swings away
from the back leaving space that the music may easily be put in position and it is
also so arranged that although it moves easily when pulled or pushed at the
bottom end, yet when pushed up to the book it holds it firmly without moving.
This is done by fixing a light spring under inner end of slide. The post is made of
wire jointed near the bottom end for folding. There is also a tube which slides
above the joint to allow it to be turned down, and when it is upright and in use
the tube drops below the joint thus making the post perfectly rigid. I make the
spring levers marked bin my specification before referred to preferably of thin
brass and to give them strength I flute or make them hollow. The coiled springs
which actuate these levers I allow to come through the slot of recess about half an

page_text: inch so that they act as buffers by striking against rubber or leather (provided for
the purpose) when the leaf is turned over.
I also make the flyers or carrying levers marked 6 of different lengths, the first
being the shortest the next a little longer and so on forming as it were steps.
I do this for the purpose of allowing the leaves of music being more readily placed
in position. I also make a recess or cap on that end of the flyer where it is
jointed, I do this to hold a cork that it may act as a buffer when the leaf is
turned.
I also provide an improved means of retaining and liberating the carrying
levers. To do this I joint on a bracket two levers moving on the same centre
working parallel together and also parallel with front of box. The other end of
these levers are held in slots cut in the right hand end of box. The first lever is
the liberating lever N° 1 and the second one is the retaining lever N° 2. To
actuate these I joint a double lever on opposite end of bracket and immediately
under levers N° 1 and N° 2 which I call a tappet lever. At the opposite end of
this tappet lever I hang a pendulum at the bottom end which passes through
bottom of box and terminating in a cross piece of an inverted T shape. On the
front end of this cross piece I place a finger key and on the back end a loop or
connection for operation by the foot, this loop connection can be turned up out of
sight when not wanted for use. When the finger key is pressed down about half
its distance, the right end of tappet lever rises and so lifts retaining lever N° 2
but does not move the liberating lever N° 1 until N° 2 is well up and holding back
the flyers which are to be retained but on pressing the finger key still further, the
head of a regulating screw (which passes through a hole in N° 1 and is screwed in
a rocking stud on tappet lever) taps N° 1 and so depresses it, thus liberating one
flyer only. There is a light spring resting on the rocking stud and surrounding
the regulating screw which keeps N° 1 from coming down until the head of screw
taps it which can be regulated for adjustment.
The tappet lever is made of two pieces rivetted together one each side of bracket,
one end of bracket being used for the joint and the other end as a guide or
'steady." The main spring is flat fixed on top of bracket and pressing on
retaining lever N° 2 which presses down short end of tappet lever thus lifting
pendulum and finger key in position.
Instead of a clamping screw I prefer to use for the main springs of levers
marked b a ratchet and pawl arrangement whereby I am able with great facility
to adjust the tension of the springs when required.
Dated this 1st day of January 1884.
BREWER & JENSEN,
Agents for the Petitioner.

page_text: I, ROBERT HENRY PADBURY of 24 Mildmay Grove, Stoke Newington in the
County of Middlesex Engineer, do hereby declare the nature of said invention for
"IMPROVEMENTS IN APPARATUS OR APPLIANCES FOR TURNING OVER THE LEAVES
OF MUSIC AND OTHER LEAVES" and in what manner the same is to be performed
to be particularly described and ascertained in and by the following statement :-
My present invention especially refers to improvements upon or additions to an
Invention for which letters patent were granted to me on the 5th February 1881
No. 501..
And in order that my improvements may be easily understood and readily
carried into effect I will describe them with reference to the accompanying
drawings in which Figure 1 is a general perspective view of an apparatus for
turning over the leaves of music constructed according to my present invention
and which may be fitted on a music desk or piano &c. .
Figure 2 is a plan view with the cover removed to show the interior mechanism.
Figure 3 is a transverse section on the line 1. 2 of Figure 2 Figure 4 is a section
on the line 3. 4. of Figure 2 showing one of the clasps for attaching the apparatus
to the desk or piano. Figure 5 shows detached one of the flyers and levers.
Figure 5 being an enlarged section of lever arm through line 3. 4. of Figure 5.
Figures 6. 7 and 8 show on an enlarged scale the retaining and releasing nechanism.
Similar letters of reference refer to like parts in all the Figures.
The first improvement refers to the construction of the apparatus in such a
manner that it will hold a thick bound book as well as a thin one and to accomplish
this instead of an ornamental back being a fixture to the apparatus as specified and
illustrated at Figure 1 and marked in the Specification of the Patent before
referred to. I so attach it that the back A of the apparatus can be pushed
backwards away from the box B in order to leave a space between the flyers C. C.
and the back A to suit various thicknesses of books and I accomplish this by
fixing the back A of the apparatus into V shaped slides a see Figure 1 which tit
and slide in corresponding slots or grooves in the cover of the box B.
The box B is provided with sliding clasps D see Figures 2 and 4 which may be
made double or single. Two clasps are shown at Figure 2. The frame of the
clasp or clasps D slide in slots or recesses d¹ formed in the bottom of the box see
Figure 2 and by means of a spring or springs de I obtain an even sliding movement
so that by the aid of the sliding clasp and sliding back when the appliance is fixed
firmly to the music rest of the piano or music stand the box B containing the
mechanism can easily be brought forward, leaving a clasp D bebind and the back A
is slid backwards in order to adjust it to the thickness of the wood used. I
likewise made centre post E which is fitted upon a slide working in the cover of
the box B as described with reference to the back A and thus will slide up to or
away from the back A leaving a space between the back A and centre post E and
in this space the music may easily be placed and held in position. The post E is
so arranged that although it moves easily when pulled or pushed at the bottom end
yet when pushed up to the book it holds it firmly without moving because the
pressure of the book acting mostly at the top of the post causes the slide to jamb
or this
may be done by fixing a light spring under inner end of slide.
The post E
is made of wire jointed near the bottom end for folding. A tube e slides over the
post E and above the joint to allow it to be turned down and when it is upright
in use the tube drops over the joint, thus making the post perfectly rigid I make

page_text: the spring levers C³ marked b in my Specification before referred to preferably of
thin brass and to give them strength I flute or make them hollow see Figure 5*.
One end of the coiled springs used in the Patent above referred to for actuating
these levers I now make to project through the slot of recess or spring box about
half an inch as clearly shown at c Figures 2 and 3 so that when near the extreme
extent of the throw of the levers C¹ the projecting ends c strike against a pillar c¹
and act as buffers when the leaf is turned over the pillar c¹ may be covered with
leather or rubber.
I also make the flyers C or carrying levers in the Specification of my previous
patent marked b² of different lengths, the first, being the shortest the next a little
longer and so on forming as it were steps as shown in Figure 1. I do this for the
purpose of allowing the leaves of music being more readily placed in position.
I also make a recess or cap on that end of the flyer where it is jointed to receive a
piece of cork or other material c³ that will act as a buffer between the flyers C
when the leaf is turned over.
I also provide an improved means of retaining and liberating successively the
carrying levers or flyers C. C¹
I pivot on a bracket F screwed on the bottom of the interior of the box B two
leavers G and G' parallel to each other and rocking on the same centre I see
Figures 6, 7 and 8. The other ends of these levers pass through slots cut in the
right hand end of the box B.
The first lever G is the liberating lever and the second one G¹ is the retaining
lever. In order to actuate these levers I pivot a double lever H on opposite end of
the bracket F and immediately under the levers G and G¹ which.I call a tappet
lever. At the opposite end of this tappet lever H I hang a pendulum or connecting
rod J the end which passes through bottom of the box and terminating in a piece
forming with the rod J an inverted T or L shape. On the front end of this piece
I place a finger key K as shown in Figure 1 or a button as shown at Figure 2 and
on the back end a loop or connection for operation by the foot this loop connection
may be turned up out of sight when not wanted for use.
When a longer finger key K is used as shown in Figure 1 it may be further
supported by being attached to a frame k hinged or pivotted at ¹ or other
convenient position and which frame may rest on or be otherwise connected to the
projecting Tor L piece the advantage of having a long finger key being that the
performer may press the finger key at any part of its length without having to
return to one particular spot.
When the finger key is pressed down about half its distance the end g of tappet
lever H rises and so lifts retaining lever G₁ but does not move the liberating
lever G until the retaining lever G₁ is raised and is bolding back those flyers C
which are to be retained. By pressing on the finger key K still further the head
of a regulating screw L (which passes through a hole in the lever G see Figures 2
and 7 and is screwed into a rocking stud M on the tappet lever H) strikes the
lever G and depresses it thus liberating one flyer only namely the flyer which is
not retained by the retaining lever G¹.
A split spring N one end of which is fixed in a cut or slot n in the bracket F so
that one end of the split ends keeps the lever G from coming down until the head
of screw L strikes it the time of which can be regulated. The other end of the
split spring presses down the lever G' so that it will not rise until forced upwards
by the end g of the lever H.
The tappet lever H is made of 2 pieces (held together by the pivots passing
through it) one on each side of bracket, one end of bracket being used for the joint
or pivot on which the lever turns and the other end as a guide or
"steady."
Instead of a clamping screw I prefer to use for the main springs of levers C
(marked b in the Specification of my previous patent) a ratchet and pawl
arrangement see Figure 2 whereby I am able with great facility to adjust the
tension of the springs when required.

page_text: 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 is
First-the mode and means of regulating and adjusting the position of the
back or book rest so that it will hold a thickly or thinly bound book substantially
as described and illustrated with reference to the accompanying drawings.
Second-The construction and arrangement of the sliding clasps substantially
as and for the purpose set forth.
Third: The construction arrangement and action of the central post substantially
as and for the purposes set forth.
Fourth Constructing the spring levers C₁ of thin and fluted metal and flyers
or carriers C of different lengths the levers and flyers being actuated by coiled
springs together with the means employed for retaining liberating and actuating
the aforesaid levers all arranged and acting substantially as and for the purposes
described with reference to the accompanying drawings together with any mere
modification thereof.
Fifth The general arrangement and combination of parts forming my improved
apparatus or appliances for turning over leaves of music and other leaves all
combined and acting substantially in the manner hereinbefore described and
illustrated with reference to the accompanying drawings.
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