AN IMPROVEMENT IN MOLD HAMMED RATIS OP PIANOFORTES
Year: 1856

page_text: LETTERS PATENT to Charles Mills, of 8, High Street, Camden Town,
in the County of Middlesex, for the Invention of "AN IMPROVEMENT IN
MOLD HAMMED RATIS OP PIANOFORTES"
Sealed the 19th December 1856, and dated the 23rd June 1856.
PROVISIONAL SPECIFICATION left. by the said Charles Mills at the
Office of the Commissioners. of Patents, with his Petition, on the 23rd
June 1856.
I, CHARLES MILLS, of 8, High Street, Camden Town, in the County of
Middlesex, do hereby declare the nature of the Invention for "AN IMPROVE-
MENT IN THE HAMMER RAILS OF PIANOFORTES," to be as follows:-
-
This Invention has for. its object an improvement in the hammer rails of
pianofortes. For this purpose the wire or axis of the hammer butt, in place of.
being held by projections on a metal plate against wood or metal projections
at the edge of the hammer rail as heretofore, is received by a metal plate with
projections, having grooves in the ends of such projections. affixed to the edge
of the hammer rail, and the wire or axis is held in position in. the grooves
above mentioned, by a similar metal plate (with projections) to that heretofore
used, but such last-mentioned plate is not fixed parallel and together with the
first-mentioned plate to the hammer rail, on the contrary, the two plates
fixed separately to the hammer rail; and at an angle to each other.
are

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Mills in the Great Seal Patent Office on the 22nd
December 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
MILLS, of 8, High Street, Camden Town, in the County of Middlesex, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-third day of June, in the year of our Lord
One thousand eight hundred and fifty-six, in the twentieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the
said Charles Mills, Her special licence that I, the said Charles Mills, my
executors, administrators, and assigns, or such others as I, the said Charles
Mills, my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "AN IMPROVEMENT IN THE HAMMER
RAILS OF PIANOFORTES," upon the condition (amongst others) that I, the said
Charles Mills, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately after the
date of the said Letters Patent.
NOW KNOW YE, that I, the said Charles Mills, do hereby declare the
nature of the said Invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement
thereof, that is to say:-
This Invention has for its object an improvement in the hammer rails of
pianofortes. For this purpose the wire or axis of the hammer butt, in place of
being held by projections on a metal plate against wood or metal projections
at the edge of the hammer rail as heretofore, is received by a metal plate with
projections, having grooves in the ends of such projections affixed to the edge
of the hammer rail, and the wire or axis is held in position in the grooves
above mentioned, by a similar metal plate (with projections) to that heretofore
used, but such last-mentioned plate is not fixed parallel and together with the
first-mentioned plate to the hammer rail, on the contrary, the two plates are
fixed separately to the hammer rail, and at an angle to each other.

page_text: acco
Figure 1 is a side elevation of a hammer rail, constructe
Invention; and Figures 2 and 3 are transverse sections of the same, taken at
the lines A, A, B, B, Figure 1, respectively.
a is the wooden bar, to the side of which is screwed the metal plate b, having
projections 6, these projections have grooves at their ends in which the wire
or axis c rests. On this axis the hammer butts d are mounted in the ordinary
manner; e is another metal plate screwed on to the top of the bar a. This
plate has projections e', which retain the axis c in the grooves on the projections
of the plate b.
Having thus described the nature of my Invention, and the manner of
performing the same, I would have it understood that I am aware that the
axis of the hammer butts has heretofore, in some cases, been held between
projections on two metal plates, but in these cases the plates are placed
parallel to and in contact with each other, and are fastened at the same time
to the wooden bar; I do not therefore claim generally the holding the axis of
the hammer butts between projections on two metal plates; what I claim is,
the holding the axis of the hammer butts between projections on two metal
plates when such plates are fixed separately to the wooden rail, and in a
position inclined to each other.
In witness whereof, I, the said Charles Mills, have hereunto set my hand
and seal, this Sixteenth day of December, in the year of our Lord One
thousand eight hundred and fifty-six.
Witness,
JNO. ALCOCK.
CHARLES MILLS. (L.8.)