Improvements in Music Turners.
Year: 1889

page_text: Date of Application, 25th Nov., 1889
.Complete Specification Left, 23rd Aug., 1890-Accepted, 11th Oct., 1890
PROVISIONAL SPECIFICATION.
Improvements in Music Turners.
I GEORGE BROCKELBANK of "Belmont" 21 Thicket Road Anerley in the County
of Surrey Gentleman do hereby declare the nature of this invention to be as
follows:-
My improvements in music turners patented by me 5 August 1884 & 11 July 1885
consist in having the plates to which the arms are fixed an uninterrupted circle having
a slot cut in them where the square rod with foot catch partially rotates & returns.
By this the plates have an equal bearing at their edge on all sides on the friction
plates which also have exactly the same slots cut in them to allow the said square rod
to act backwards and forwards. The plates by this, work perfectly smoothly &
steadily. Another improvement, I make the arms of flat hard brass to which I put
clips on pivots which open out to receive the music page and close up which holds the
page firmly. Another improvement to hold the arm plates and friction plates
sufficiently firm I place on them an independent plate with screwed pins on three
sides falling into slots in the frame & protruding outside on which screw nuts fix the
said plate at any point, required.
Another improvement consists in fixing the friction plates so that they shall not
move round with the arm plates. These friction plates have a projection on their
periphery which falls into the slot at back of the frame. In the repeat arm I put a
regulating screw instead of a piece of iron.
1
1000
GEO. BROCKELBANK.
COMPLETE SPECIFICATION.
Improvements in Music Turners.
1 GEORGE BROCKELBANK of "Belmont" 21 Thicket Road Anerley S.E. in the
County of Surrey 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 :-
The object of this invention is to perfect the means for turning over the leaves of
music. In the accompanying drawings Figure 1 is a centre section of a full size
music turner. ccc is the frame and clip with spring C, that fixes it on the ledge of music
desk. Figure 1 is long pivot for loose music screwed into top of frame clip-b is a
vertical axle or upright column screwed into said frame on which most of the move-
able parts act. à d'd is repeat pulley with lever arm and moveable elbow screwed
into the side of lever arm Figure 2 d 3. Between this and armplate is an intermediate
plate Figure 4 coming against ledge section of which is shewn at e Figure 1 and
completely in Figure 2 e e e. xxxx is the arm plate and arm Figures 1 & 3.
Between all the arm plates is a thin friction plate shewn by Figure 5 with its pro-
jection p which fits in the slot of turner case 9 Figure 2 to prevent it moving with
the arm plate when in motion thus making every arm plate work between two fixed
plates. sis foundation plate Figure 6 & 1 with three screw projections u u u which
fit in slots in turner case gjj on which are placed nuts to be screwed tightly after the
plates have been pressed together sufficiently tightly. Next to this is the spring
pulley o o Figures 1 & 7 working on the vertical axle 6 Figures 1, 2 & 7 inside which
is a watch spring which automatically forces itself round with the armplates also,
by 61 Figures 1 & 8 which is a square rod with foot-shaped end y Figure 8 which
passes up and down in a square slot y 2 Figures 8 & 7 also in slots 62 in armplates
Figures 3 & 6 friction plates & foundation plate. The sole of the foot z Figure 8

page_text: rises against the armplate at a 1 Figure 3 while the heel K 2 rises into slot Figure 3
and acts as a catch at back of said plate. When the toe of the performer acts upon
the pedal of the repeat pulley d, d, d Figures 1 & 2 which pedal is fixed at bottom of
music desk and connected by cord D D running over roller W 1 the arms are all forced
round to the starting point A Figure 2 by the vertical part of lever d, d, d Figure 1
at the same time pulls down the square rod by spiral spring g Figures 1 & 8 which is
attached to it, until the foot on rod z Figure 8, is stopped at top of spring pulley
at S 3 Figure 8 where it remains until the arms of the armplate come round against
the case at starting point A Figure 2. So soon as the performer's toe releases the
repeat pedal d, d, d, Figures 1 & 2, the sole of the foot on square rod Figure 8 is
forced up against the bottom of armplate by spring a 2 Figures 1 & 7 running through
a hole drilled in the bottom of square rod and connected with the spring pulley by
screw a 3 Figures 1 & 7 while the heel rises into slot of armplate 62 Figure 3. When
the pedal also fixed to bottom of desk connected with the said spring pulley is put in
motion, the heel of the foot k 2 Figure 8 catches the first plate and brings it round to
the point of case B Figure 2. Directly the performer releases this pedal connected
by cord passing over roller W 2 the spring inside the pulley o 0 Figures 1 & 7, auto-
matically takes the square rod (the heel of which rests against the second plate) back
to the starting point A Figure 2 where its stopped by case a, a, Figure 2 by check
pin Figure 7 when the heel k 2 Figure 8 rises into slot at back of second plate, while
the sole of foot Figure 8 rests against the surface of same at, a' Figure 3, forced up
by spring, a 2 Figure 7-Thus the second arm with second page of music is ready
to be turned by the performer by simply putting his toe on the same pedal and forcing
it down until the page is turned over. Figure 9 is the end section of arm x x x x
Figures 1 & 3 with clip open to receive a page of music which when closed holds it
firmly, taking it backwards and forwards at will of the performer. The slot in vertical
axle n 1 Figures 1 & 7 is cut in same to fix inside end of watch spring and Figure 10
is inside of pully Figure 7 shewing watch spring in slot on vertical axle, and the
other end hooked on to pin f. m Figure 7 is a washer. o 1 Figure 7 is pin through
vertical axle which keeps pulley in its place q Figures 1 & 8 is spiral spring attached
to spring a 2 Figure 7 at the bottom of which the repeat pulley cord D'D is attached.
Without this spiral spring the foot of square rod would be broken off. W 1 Figures 1
& 2 is roller over which the cord (D D Figure 1) passes, connected with repeat
pulley pedal on the music desk. W 2 Figure 2 is roller over which the cord of the
spring pulley (o. o Figures 1 & 7) runs and turns the leaves one by one.
2
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
1stly. The slot in the plates which allows the bearings to extend to the periphery
of all the plates and thus keeps the said arms & plates exactly horizontal and steady.
2ndly. The foundation plate by which the pressure on the moveable plates is
regulated.
3rdly. The spring in desk clip which at once fixes it on ledge of desk.
4thly. The flat hard brass arin and clip (Figure 9).
5thly. Long centre pivot for loose music.
6thly. The simple repeat pulley with moveable elbow by screw, by which one or
any number of arms can be forced over to starting point.
11
GEO. BROCKELBANK.