A CONSIDERABLE IMPROVEMENT IN THE CONSTRUCTION OF PIANOFORTES, AND ALL OTHER MUSICAL INSTRUMENTS IN WHICH HAMMERS ARE OR CAN BE MADE USE OF, WHEREBY SUCH INSTRUMENTS WILL BE MORE PERFECT IN THEIR KIND THAN BY ANY OTHER METHOD OR CONSTRUCTION HITHERTO DISCOVERED
Year: 1792

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
BUTTERY, of the Parish of Saint Martin in the Fields, in the County of
Middlesex, Musical Instrument Maker, send greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Twenty-sixth day of January, in the thirty-second year of lis
reign, did give and grant unto me, the said George Buttery, His especial
licence that I, the said George Buttery, during the term of years therein
mentioned, should and lawfully might use, exercise, and vend, within England,
Wales, and Town of Berwick-upon-Tweed, my Invention of "A CONSIDERABLE
IMPROVEMENT IN THE CONSTRUCTION OF PIANOFORTES, AND ALL OTHER MUSICAL
INSTRUMENTS IN WHICH HAMMERS ARE OR CAN BE MADE USE OF, WHEREBY SUCH
INSTRUMENTS WILL BE MORE PERFECT IN THEIR KIND THAN BY ANY OTHER METHOD
OR CONSTRUCTION HITHERTO DISCOVERED;" in which said Letters Patent thero is
contained a proviso obliging mc, the said George Buttery, by writing under
my hand and seal, to cause a particular description of the nature of my said
Invention, and in what manner the same is to be performed, to be inrolled in
His Majesty's High Court of Chancery within one calendar month after the
date of the said recited Letters Patent, as in and by the same (relation being
thereunto had) may more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
George Buttery, do hereby declare that my said Invention of A considerable

page_text: me wa
wrw if to prevent that Inconvenience they are pied light, they will be stuck
fast in Moist weather as after being thrown up by the key, they will not return to their first and proper situation.
The
present Invention is intended to remedy these Inconveniences by means of the Muchinery represented in the Figure in which I is a perspective view of an Aure of Steel or other metal,
worked out of the solid to be fixed through the Hammer Fail, the ends of which work in a Groove in a Brass or other plate attached to and continued along the whole length of the Block - B is a pont.
view of the Axis with the ends working in the Groove - C is a profile view with a Brass or other spring screwed into the Block as at a, and the other and entering into the Back of the Hammer
Fail by means of a bavily made for that purpose and pressing upon the centre of the Aus regulates the motion of the Hammer -El represents the back of the Hammer Fail with its Axw and
the Carrty in which the spring is to operate and A, shews the Hammer Tail with its Axis as fixed for now. It is to be observed that the Cavity in the Hammer Fail which is to receive the dai
must be lined with Cloth or other soft substance to prevent any sound or vibration of the Hammer.
'
Prejudice to the Tone of an Inshument when used in Rooms that are carpetted and having other Furniture sending to drown or deaden sound
on a spring pred on each Foot of the Frame, the form of one of which Springs is given in the Figure S. but it is obvious that the form construction and application of the springs may be
I obviate by placing the Instument
varied at pleasure so as to produce the same effect by thus placing the Inshument the Fone will be brisker, the Shings will have a greater Vibration the Instrument will receive of
humulous mohon, and the above Defect will be entirely defeated_