Improvements in Leaf Turners.
Year: 1899

page_text: Date of Application, 17th Nov., 1899-Accepted, 3rd Mar., 1900
COMPLETE SPECIFICATION.
Improvements in Leaf Turners.
I, JAMES EDWARD WIZE, of Rossland, Province of British Columbia and
Dominion of Canada, 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:-
My invention relates to leaf-turners intended particularly for use in connection
with sheet or other music on pianos, organs, music-stands, or the like.
It is my object, among others, to construct such a leaf-turner as an attachment
complete in itself and adapted to be readily attached to or detached from the
music support or shelf and to so construct the attachment that the music-turning
arms can be easily and quickly adjusted to books of different thicknesses, so that
the arm-pivots will always be in proper relation to the back or hinge of the music-
book, and to generally simplify and improve such music-leaf turners.
With such objects in view the invention embodies the parts, arrangements, and
combinations thereof hereinafter described, and particularly set forth in the
claims.
In order that the invention may be more fully understood, I have shown in
the accompanying drawings means for carrying the same into practical effect, but
desire it to be understood that I do not limit my improvements in their useful
applications to the particular construction which for the sake of illustration I
have therein delineated.
In the drawings, Figure 1 is a plan view of a music-leaf turner embodying my
improvements. Fig. 2 is a vertical sectional view thereof on the line 22 of Fig. 1,
and Fig. 3 is a front elevation of the leaf-turner shown in Fig. 1.
Referring to the drawings, wherein like reference-letters designate correspond-
ing parts in the several views, A. represents a base-plate having at the rear thereof
an upwardly-extending flange or plate B, forming a back or stop for the music
which it is intended to support upon the base-plate A. This base plate A is
intended to be detachably supported on the supporting ledge or shelf of the music-
holder. As a means for detachably securing the base-plate to the music-support
I preferably secure to the base-plate, conveniently at each end thereof, a spring
clip or clasp C. If desired, these clips may be provided with a covering or
bearing-surface of soft material to prevent marring of the music-support in case
the latter is constructed of material which is easily defaced.
DD represent swinging arms pivotally connected to the base-plate, so as to
At or near the outer ends of the
swing horizontally from side to side thereof.
arms are secured, and preferably by swiveling the same on pivots d, clamping
means for attachment to the music-leaves, which means are shown in the drawings
as being spring clips or fastenings E, it being my invention to employ any suit-
able or desirable form of fastening means. If desired, the arms can be made of
different length, so that the spring-clips E may lie close in to the base-plate and
so that they can be readily and easily grasped to turn the levers.
It often happens that a book of considerable thickness is employed in connec-
tion with the device, and in order that the pivot connection for the arms may be

page_text: adjusted to suit the different thicknesses of books, so that it will always bear the
proper relation to the leaves to avoid danger of tearing or buckling the same in
operation of the device, I make use of the following construction: F is a flat
plate pivoted at f to the base-plate A and having at its opposite or free end a
pirot G, on which the several arms D of the turner are pivoted. The base-plate A
is provided with a slot H to permit the swinging of the plate F and pivot G in
toward the back of the base-plate A. On the base-plate, at the opposite side of
the slot to the pivot f, is pivoted at ja second plate or link J. This plate J has
in its free or swinging end an elongated slot k, in which the pivot G works or
slides. By this arrangement of links it will be seen that the pivot G is free
to be moved in or out towards or from the plate A and is limited in its movement
by the slot . In order to strengthen or brace the links, I have shown a second
link J, secured to and movable with the link J and similar to such link, having
an elongated slot, in which the pivot G also works. It will be observed that the
link is pivoted on top of the base-plate, whereas the links J and J' are pivoted
on the under side of the base-plate. By so arranging the links very light stock
or metal may be employed and the arms D still have a sufficiently firm support
and at the same time will offer no material obstruction to catch on or knock
against the book or music resting on the base-plate.
The base-plate and links supporting the pivot for the arms D are all preferably
made of very light sheet metal.
From the foregoing description it is believed that the use and operation of the
device will be readily understood.
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:
1. In a leaf-turner, the combination of a base-plate, and means for securing
the same to a support, a plurality of arms each provided with means for attach-
ment to the music-leaves, a pivot for said arms, and a support for said pivot
movable toward or from the base-plate.
2. In a leaf-turner, the combination of a base-plate and means for securing
it to a support, a plurality of arms having means for attachment to the leaves, a
pivot for said arms, a plate pivoted to the base-plate to which said pivot is secured
and a second plate secured to the first plate and provided with an elongated slot
in which said pivot works.
3. In a leaf-turner, the combination of a base-plate having intermediate its
ends a slot, a plate pivoted to the base-plate at one side of said slot and on top
of the base-plate, a plate pivoted on the under side of said base-plate at the
opposite side of said slot, a plate J secured to and movable with said second
plate, a pivot carried at the free end of the first-mentioned plate and working
in elongated slots in the other plates, a plurality of arms hinged on said pivot;
and clips one on each arm for attachment to the leaves.
Dated this 16th day of November 1899.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Patent Agents.