SOME IMPROVEMENTS ON THE ORGAN, PIANOFORTE, AND OTHER MUSICAL INSTRUMENTS, AS LIKEWISE THE CONVEYANCE OF MUSICK OR VOICE TO A DISTANT PLACE
Year: 1788

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
BURY, of Bishopsgate Street, within the City of London.
WHEREAS His most Excellent Majesty King George the Third, by His
Royal Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Fifteenth day of January, in the twenty-eighth year of His
reign, did give and grant unto me, the said Samuel Bury, my executors,
administrators, and assigns, and every of them, by myself and themselves, or
by my or their deputy or deputies, servants or agents, or such others as I,
the said Samuel Bury, my executors, administrators, or assigns, should at any
time agree with, and no others, from time to time and at all times thereafter
during the term of years therein expressed, should and lawfully might make,
use, exercise, and vend, within that part of Great Britain called England, His
Dominion of Wales, and Town of Berwick-upon-Tweed, my Invention of
"SOME IMPROVEMENTS ON THE ORGAN, PIANOFORTE, AND OTHER MUSICAL
INSTRUMENTS, AS LIKEWISE THE CONVEYANCE OF MUSICK OR VOICE TO A DISTANT
PLACE," in such manner as to me, the said Samuel Bury, my executors,
administrators, and assigns, or any of them, should in my or their discretions
seem meet, and that I, the said Samuel Bury, my executors, administrators,
and assigns, should and lawfully might have and enjoy the whole profit, benefit,
commodity, and advantage from time to time growing, accruing, and arising
by reason of the said Invention, for and during the term of years therein
mentioned, to have, hold, exercise, and enjoy the said licence, powers;
privileges, and advantages therein-before granted or mentioned to be granted

page_text: unto me, the said Samuel Bury, my executors, administrators, and assigns, for
and during and unto the full, end and term of fourteen years from the date of
the said Letters Patent next and immediately ensuing, and fully to be
compleat and ended, according to the Statute in that case made and provided;
in which said Letters Patent there is contained a provisoe, obliging me, the said
Samuel Bury, by an instrument in 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 next and immediately after the
date of the said 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 provisoe, I, the said
Samuel Bury, do hereby declare that the said Invention consists and is made
according to the Drawings and explanations annexed in the margins of these
Presents, and to which I particularly refer.
In witness whereof, I, the said Samuel Bury, have hereunto set my hand
and seal, the Thirteenth day of February, in the twenty-eighth year of
the reign of our Sovereign Lord George the Third, by the grace of
God of Great Britain, France, and Ireland King, Defender of the
Faith, and so forth, and in the year of our Lord One thousand seven
hundred and eighty-eight.

page_text: key frame; G, a sliding board, with strips of cloth, leather, or parchment, upon
which are fixed small pieces of whalebone, or any hard substance, that when the
strings are struck thereby the harpsichord tone is produced; G, G, the slide
which takes off or puts on the sliding board G; H, the slide which throws up
the dampers, whereby the tone becomes exactly similar to the dulcimer, and
when drawn off by the stopp G, G, the instrument is then a perfect piano-
forte; I, a slide on the block that the strings are hung to, in the same form
as the afore-mentioned G, G, with cloth, leather, or any thing that will produce
a sweet mellow tone when struck by the hammer; L, a lever that raises the
bellows of the organ by a ballance weight; M a counter-acting lever to decrease
the throw of the ballance lever; N, a ballance wheel, which is fixed in the
centre of a crank; O, the wheels which give motion to the action of the levers
by the assistance of quicksilver weights or springs; P, a temple, wherein any
kind of music may be performed; Q, a tube, with a receiving funnel at one
end and a discharging funnel at the other. The receiver being placed to the
temple, or on any instrument, or before a person's mouth, conveys the sound
or voice to a distant place; R receives the sound from the tube Q, and returns
an echo, a further invention for blowing the bellows of the organ; S, a
barrell whereon a line on which may be fixed a weight or spring; T, a wheel
at the end of the barrel, marked S; T, T, a spindle with a small wheel that
works in the teeth of the wheel T; at the other end a larger wheel marked U,
part with teeth and part without; U, U are two sliders, placed on each side
of the wheel, marked U, with teeth so placed that the wheel U raises one
slider and falls the other. N.B. Such parts of the instruments as are
herein set forth are the same as by other makers.
AND BE IT REMEMBERED, that on the Thirteenth day of February, in
the year last above mentioned, the said Samuel Bury came into the Court of
Chancery of our Sovereign Lord the King, and acknowledged the Specification
aforesaid, and every matter and thing therein contained and specified. And
also the said Specification was duly stampt according to the tenor of a certain
Act of Parliament in that case made and provided.
Inrolled the Thirteenth day of February, in the year above written.