Improvements relating to Planoforte Wrest Planks.
Year: 1898

page_text: Date of Application, 30th Dec., 1898
Complete Specification Left. 14th June, 1899-Accented 15th July 1200
PROVISIONAL SPECIFICATION.
Improvements relating to Planoforte Wrest Planks.
We, HERBERT MELCHOR GREENWOOD, of 32, Garlies Road, Forest Hill, S.E,
Gentleman, and FREDRICK RICKARDS BENNETT, of 83, Cobbold Road, Willesden
Green, Pianoforte Tuner, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements upon the pianoforte wrest plank de-
scribed in the specification to Noble and Bennett's Patent No. 28093, dated
November 29th 1897, and has for its object to facilitate the operation of tuning
and also to remove strain from the upper edges of the wrest plank
According to this invention, we substitute horizontal wrest pins inserted in
the side faces of the wrest plank for the vertical pins inserted in the top face of
the plank described in said specification The wrest pina which take the wires
led to the front face of the wrest plank may be of the usual length, but those that
take the wires led to the rear face of the plank are of extra length, and, passing
completely through the latter, project from the front face thereof, thus per-
mitting all the wires to be tuned from the front face of the wrest plank in the
ordinary manner
Dated 1: DOLL 1
B T
1
1000
Improvements relating to Pianoforte Wrest Planką.
We, HERBERT MELCHOR GREENWOOD, of 32, Garlies Road, Forest Hill, S.E,
Gentleman, and FREDRICK RICKARDS BENNETT, of 83, Cobbold Road, Willesden
Green, Pianoforte Tuner, do hereby declare the nature of this invention and in
what manner the same 18 to be performed to be particularly described and ascer-
tained in and by the following statement.-
This invention relates to pianoforte wrest planks of the type, described in the
specification to Noble and Bennett's Patent, No 28093, dated November 29th
1897, wherein the stress of the wires is equally distributed between both sides of
the plank, and has for its object to facilitate the operation of tuning and also
to remove all stress upon the upper edges of the wrest plank
According to our invention, we substitute horizontal wrest pins inserted into
the side of the wrest plank for the vertical wiest pins inserted into the top of the

page_text: wrest plank described in said specification Some of these wrest pins are of the
usual length and take the wires led to the font face of the wrest plank, but
the remainder pass completely through the wrest plank and project from the
rear face the cof, and these take the wites led to such rear face of the wrest plank
The wires of all the notes can thus be tuned from the front of the wrest plank
in the usual manner
The accompanying drawing represents in vertical section a wiest plank em-
bodying our improvements
The wrest plank a is secured to the iron plate b, its under surface being sup-
ported by the angle iron or bracket piece bl The said iron plate b carries the
top bridge and usual pressure bar d. The wirea e for one note are led over the
front face of the wrest plank to wrest pins f of ordinary length whilst the wires c¹
for the next note pass through a hole in the plate 6 and are led behind the wrest
plank to the west pins which are of extra length and pass completely through
and project from the rear face of the wiest plank The wires for all the notes
are tuned from the front of the wrest plank in the usual manner
Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed, we declare that what
we claim 18:-
1 A pianoforte wiest plank having horizontal wrest pins some of which pass
completely through the plank and project from the rear face thereof, whereby
the wires may be led to both the front and rear faces of the wrest plank and
may all be tuned from the front of the latter in the usual manner, substantially
as described
2 A pianoforte wrest plank having horizontal wrest pins, arranged as described
in preceding claiming clause, and secured to an iron plate which carries the
top bridge and pressure bar and is provided with holes through which the wires
pass to the rear of the wrest plank substantially as and for the purpose described
and illustrated
3. A pianoforte wrest plank constructed and ananged as illustrated in the
annexed drawing
nexed drawing
Dated this 14th day of June 1899
E P ALEXANDER & SON,
Chartered Patent Agents,
19, Southampton Buildings, Chancery Lane, London, WC, Agents
3