A NEW MUSICAL INSTRUMENT, THE END AND INTENTION OF WHICH IS TO PLAY THE PIANO-FORTE, CLAVICORD, OR SPINNETT, WITH Two SETS OF KEYS, TO WHICH EITHER OF THESE THREE, INSTRUMENTS MAY BE JOINED TOGETHER, AND PLAYED AGREEABLE TO THE ANNEXED PLANS
Year: 1792

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JonN
GEIB, of Southampton Row, in the Parish of Saint Pancras, 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 Eighteenth day of April, in the thirty-second year of His reign, did
give and grant unto me, the said John Geib, His especial licence, full power,
sole priviledge and authority, that I, the said John Geib, my executors, adminis-
trators, and assigns, should and lawfully might, during the term of years therein
expressed, make, use, exercise, and vend, within that part of His Majesty's
Kingdom of Great Britain called England, His Dominion of Wales, and Town
of Berwick-upon-Tweed, my Invention of. "A NEW MUSICAL INSTRUMENT, THE END
AND INTENTION OF WHICH IS TO PLAY THE PIANO-FORTE, CLAVICORD, OR SPINNETT, WITH
Two SETS OF KEYS, TO WHICH EITHER OF THESE THREE, INSTRUMENTS MAY BE JOINED
TOGETHER, AND PLAYED AGREEABLE TO THE ANNEXED PLANS;" in which said recited
Letters Patent there is contained a proviso obliging me, the said John Geib,
by au 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 after the date of the said. Letters Patent;
relation being thereunto had, will more fully appear.
NOW KNOW YE, that in compliance with the said proviso; I, the said
John Geib, do hereby declare that the nature of my said Invention, and the

page_text: manner in which the same is to be performed, is described and ascertained in
manner following, and also in the Plans hereunto annexed (that is to say) :-
A, A, A, a piano-forte, as usually made in every respect, except the keys and.
something deeper, and may be played on the top or bottom, as described in this
Plan, and also in the Plans marked No. 1, 2, 3, & 4. B, B, B, a clavicordeum
or a spinnett, as usually made (except the keys), and may be also played at the
top or bottom, agreeable to the Plans No. 1, 2, 3, & 4. C, C, C, is the bottom
case of either of the instruments, No. 1, 2, 3, & 4. D, D, D, is the upper case,
with two keys and fraine, screwed to the bottom of either of the upper instru-
ments of No. 1,2, 3, or 4,.and shews itself when tho instrument opens for the con-
veniency of tuning either of the instruments, No. 1, 2, 3, & 4, which is hinged
on the back, as specified in the Plani No.1, by the letter.O.
+
A, the piano-forto as usual, except something deeper. B, one of the keys
of the piano-forte. C, one of the keys of the clavicord. D, a nut, made of
soal leather, to screw on the keys on the back. Ea nut, of soal leather, to
regulate the key to its proper depth. F, a nut, of soal leather, to screw tho
wire which connects the upper key G together. G, a key, as usually made
in clavicords (except the front part of the ivory and sharps. H, the frame of
the key. I, the frame of the middle key C, which is screwed on the bottom
of the upper instrument, agrogable to the Plan 1), D.. D. 1, a brass wire,
which connects the keys Cand G together. L.the key frame of the piano-
forte. M, the bottom of the piano-forte, as usual. N, the bottom of the
upper instrument. 0, one of the hinges, where both instruments are hinged
together, agreeable to the Plan of No. 1 &2. P. the key frame of the spinnett.
of the Plan No. 2, Q, one of the keys of the spinnett, R, the bottom of the
spinnett, the same as usual. S, the piano,-the same as in the Plan of No. 1.
T, the spinnett, as usual, the same as in the plan No. 4. U, the piano-forte, the
same as A, No. 1. V, one of the keys, samo as C, No. 1. W, the key frame,
the same as I, No. 1. X, the bottom of the piano-forte. Y, the key frame of
the piano-forte. Z, the key, with a balance and front rail, and holes. A, A,
a brass wire, which connects the upper, and middle keys together, the same as
K, in the Plan of No. 1. B, B, No. 4, the spinnett, the same as usual (except
the key and frame). D, D, one of tlie keys. E, E, the key frame. F, F, the
bottom, as usual: G, G, one of the keys, the same V, in the Plan No. 8: H, H,
a nut, made, of soal leather. I, I, a nut, made of soal leathor. K, K; the front
rail of the middle set of keys. L, L, the key frame of the. middle sot of keys,
the same as I, in the plan No. 1. M, M, the bottom of the piano-forte. N, N;
the key frame of ditto. O, O, the upper koy. P, P, the brass wire which
connects the
upper and middle keys together. Q, Q, the key frame, screwed on

page_text: 5
the bottom of the case, in the Plan D, D, D. R, R, one of the keys in the
bass. S, S, one of the keys in the treble. T, T, the brass wire which
connects the upper and middle keys together, the same as in the Plan No. 1,
3, & 4.
In witness whereof, I have hereunto set my hand and seal, this Twenty-
seventh day of April, in the year of our Lord One thousand seven
hundred and ninety-two.