Improvements in Leaf Turners for Books, Music, and the like.
Year: 1897

page_text: Date of Application, 19th July, 1897-Accepted, 20th Nov., 1897
COMPLETE SPECIFICATION.
Improvements in Leaf Turners for Books, Music, and the like.
I, WILLIAM JAMISON CURRY, of Nanaimo, in the County of Nanaimo, Province
of British Columbia, Dominion of Canada, Dentist, do hereby declare the nature
of this invention, and in what manner the same is to be performed, to be par-
ticularly described and ascertained, in and by the following statement:
This invention relates to Leaf Turners; and it consists in the novel construction
and combination of the parts hereinafter fully described and claimed.
In the drawings Figure 1 is a front view of the leaf turner. Figure 2 is
a plan view of the same. Figure 3 is a detail side view of one of the turning
rods.
A is a desk which is supported in any approved manner. B is a metallic plate
provided with a central groove a and secured to the middle part of the desk, and
projecting therefrom so as to hold the fold of the book above the level of the desk.
C is a rod which is passed between the leaves of the book at the fold and which
keeps the fold of the book clamped in the said groove a.
The bottom end of the
rod is provided with an eye a¹ which engages with the head of a pin 6 which
slides in a hole in the desk. B₁ is a spring secured to the pin behind the desk
and operating to press the rod towards the desk.
C is a spring secured to the upper part of the desk and provided with a bent
end portion e with which the upper end portion of the rod C engages.
I is a rod which is slidable vertically in bearings d secured to the desk. The
rod D is arranged behind the plate B, and is a spring which is secured to the
desk and which bears on the rod D). The spring d prevents the rod D from either
sliding up or down when it engages with a notch o in the said rod, unless the rod
is turned to the left. The pressure of the spring a prefents the rod from turning
accidentally.
When the rod D is pushed up its tapering upper end engages with the upper
bearing & which prevents it from being pushed up too far.
E are,
the turning arms which are journaled on the rod D; and e are forked
The
tuning rods projecting vertically from the end portions of the arms E.
forked rods e are journaled in the arms E. These rods are prevented from turn-
ing while being fitted over the leaves to be turned, by the pressure of the thumb
on the pins s which are screwed into the lower end portions of the rods e and
which work in the slots s¹ in the end portions of the arms E.
The leaves of the book or piece of music to be turned are slipped between the
forks of the rods e. Each arm E is provided with a thumb piece e¹ for operating
it.
F is a cord of flexible material, such as cat-gut, which extends across all the
turning rods e.
The ends of the cord are secured to the desk by springs f. The
cord and springs hold the turning rods pressed against the desk whether they
are to the right or to the left of the rod D.
The turning rods are moved to the right or to the left by hand against the
tension of the said springs and cord.

page_text: G, are ledges secured to the lower part of the desk for the book to rest against.
Each ledge has a long notch y in its front edge. H are spring-pressed clips
which work in cross notches h in the ledges G. Each clip has a stem I which is
slidable and revoluble in a hole in the desk at the bottom of the cross-notch,
and i is a spring secured to the said stem behind the desk and operating to press
the clips towards the desk. Each clip has a thumb-piece at its lower part for
manipulating it. The clip can be turned around so that it rests in the notch g,
as shown at the right hand in Figure 1, after being pulled forward against the
tension of the spring.
When in this position the book can be placed on the desk, and the clip can then
be turned around to the position shown at the left hand in Figure 1, so that it
engages with the cross notch and bears against the cover of the book and those
leaves which are not wanted to be turned.
The clip H can be pulled forward against the tension of the spring and turned
so that it rests on the edge of the ledge G and projects over the book. In this
position the clip keeps the music open, and yet leaves a considerable space between
the clip and the desk which is sometimes desirable.
The object in making the rod D slidable is to enable the forked turning rods
to be slid into and out of engagement with the leaves to be turned.
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 :
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1. In a Leaf Turner, the combination, with a desk provided at its lower part
with a long notch g and a cross-notch h, of a clip provided with a stem which is
journaled in a hole at the bottom of the said cross-notch, and a spring secured
to the said stem behind the desk, and permitting the clip to engage with either
notch, substantially as set forth.
2. In a leaf turner, the combination with a desk, of a curved plate secured to
the middle of the desk and projecting above its surface, a rod C provided with an
eye at its lower end, a pin engaging with the said eye and slidable in a hole in the
desk, a spring secured to the pin behind the desk, and a spring secured to the
upper part of the desk and provided with a bent end portion for the upper portion
of the rod C to engage with, substantially as set forth.
3. In a leaf turner, the combination with a desk provided with bearings d, of
a rod slidable vertically in the said bearings, a spring secured to the desk and
pressing on the rod so that it is hindered from sliding, and turning arms
journaled on the said rod, substantially as set forth.
4. In a leaf turner, the combination, with a desk, and a vertical rod supported
thereby; of turning arms pivoted on the said rod and provided with forked turn-
ing rods projecting vertically from their end portions, a flexible cord extending
across the said turning rods, and springs connecting the ends of the said cord
with the desk, substantially as set forth.
Dated this 19th day of Tulu 1907
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.