Year: 1887

page_text: Date of Application, 8th Nov., 1887
Complete Specification Left, 8th Aug., 1888
Complete Specification Accepted. 7th Dec., 1888
RESERVE CO
ERNEST AUGUSTUS BARBER BEAUMONT.

page_text: Improvements in Music Retaining Pins for Music Stands.
I, ERNEST AUGUSTUS BARBER BEAUMONT, of 32 Egremont Place, Brighton,
Gentleman, 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 improvements in the retaining pins commonly used on
music stands or desks for holding the leaves of music or of books or similar objects,
and consists in so constructing the said pins and connections that they may readily
move to left or right by the turning over of the leaves as desired while they
automatically return so as to retain the following leaves successively.
To carry my invention into practice, I connect the retaining pins, conveniently two
or more in number, with a bar or bars across their extremities but freely pivoted
thereon so that the said pins which are free to turn upon their axes move in unison,
to the right or left as desired, the bar also terminating by a curve at the extremities
so as to ensure the required pressing down action of the turning leaves without
danger of their being torn.
The said connecting bar I make of the lightest possible material, commensurate
with strength, such as of hollow metal tube, or celluloid, or vulcanite, so as to avoid
the use of a very heavy counterpoise or resilient spring as hereinafter mentioned.
To cause the re-erection of the retaining pins and bar, I use either springs, such as
a coiled spiral spring, upon the axes of the said pins, or a counterbalancing weight,
which when the downward pressure is removed, will cause the said pins and bar to
return to their former erect position, so as to again retain the leaves.
It is obvious however that a variety of spring adaptations may be employed by me
to effect this result, such as a flat spring, attached to the ledge of the desk, pressing
mpon a flat place for vertical position on the under face of a cam forming the base of
the said pins and turning round the axis, on disturbance from equilibrium.
The said axes of the pins are formed so as to be affixed in the ordinary holes
usually made to receive the ordinary fingers or pins, as at present used, which may
thus be readily removed and my improved appliance substituted therefor, the bar
connecting the said pins being either made of suitable length to suit the old pin holes,
or adjustable to meet any such requirements.
To one of these said axes I apply a thumb screw head forming the axis upon which
one of the said pins turns. When then it is desired to close the piano or desk, and
fold my appliance down to a level with the edge of the desk, so as to be out of the
İ
way, can retain the appliance thus folded down by tightening the said thumb
screw.
In order that my invention may be the better understood, I now proceed to
describe the same in relation to the drawing hereunto annexed reference being had
to the letters marked thereon.

page_text: A is part of the music stand frame. B B are the pivotted retaining pins at the
lower end of which are fitted balance weights C. At the top of these pins is a light
bar D, attached by pivotting joints at E, and with its ends curved down so that the
music leaves shall not get torn when being turned over. F F are milled headed screws
which are tightened when it is desired that the retaining pins and rod shall remain on
one side to allow the lid of the piano to let down.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :―
1st. The combination of two or more freely pivoted pins connected by a transverse
bar or bars pivoted at their extremities, with a resilient spring or equivalent counter-
balance weight, to return the retaining bar and pins to an erect position, after
disturbance by turning over the leaves of music or other books.
2nd. In such a leaf retaining mechanism the construction of one or more of the
axes of the pins so that they exactly fit the holes already made for the ordinary
fingers on the ledge of the desk, and one or more of which is provided with a thumb
so that it may be screwed down and hold the bar and fingers in any desired
Screw
position as required.
FELL & WILDING,
1, Queen Victoria Street, London, E.C.,
Agents for the Applicant.