AN IMPROVED METHOD OF PAINLESSLY ADAPTING DONTING ARTIFICIAL TEETH BY ATMOSPHERIC PRESSURE
Year: 1875

page_text: LETTERS PATENT to George Horatio Jones, No. 57, Great Russell
Street, in the Parish of Bloomsbury, in the County of Middlesex,
for the Invention of "AN IMPROVED METHOD OF PAINLESSLY ADAPTING
DON "
Scaled the 18th February 1876, and dated the 30th October 1875.
PROVISIONAL SPECIFICATION left by the said George Horatio Jones
at the Office of the Commissioners of Patents, with his Petition,
on the 30th October 1875.
I, GEORGE HORATIO JONES, No. 57, Great Russell Street, in the Parish
of Bloomsbury, in the County of Middlesex, do hereby declare the nature
of the said Invention for "AN IMPROVED METHOD OF PAINLESSLY ADAPTING
ARTIFICIAL TEETH BY ATMOSPHERIC PRESSURE," to be as follows:—
The object of this Invention is to fix firmly by atmospheric pressure
in the mouth an artificial set of teeth by means of a valve which is
inserted in the artificial palate, by which is maintained a vacuum caused
by depression of the tongue. One form of this valve I make by fastening
a strip of spring metal, preferably of gold, say half an inch long by

page_text: sixteenth of an inch wide, by a rivėt at one end to the artificial palate,
which is countersunk to receive it on the side of the spring next the
palate. A piece of india-rubber or any other substance answering the
same purpose is attached so as to cover an aperture or hole previously
made in the artificial palate, by which means the re-entrance of air is
prevented. This arrangement constitutes the most simple form of valve
for this purpose.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Horatio Jones in the Great Seal Patent
Office on the 21st February 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HORATIO JONES, of No. 57, Great Russell Street, in the Parish of
Bloomsbury, in the County of Middlesex, Surgeon Dentist, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirtieth day of October, in the
year of our Lord One thousand eight hundred and seventy-five, in
the thirty-nineth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said George Horatio Jones,
Her special licence that I, the said George Horatio Jones, my
executors, administrators, and assigns, or such others as I, the said
George Horatio Jones, 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 Islo
of Man, an Invention for "AN IMPROVED METHOD OF PAINLESSLY ADAPTING
ARTIFICIAL TEETH BY ATMOSPHERIC PRESSURE," upon the condition (amongst
others) that I, the said George Horatio Jones, my executors or
administrators, by an instrument in writing under my, or their, or
one of their hands and scals, 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.

page_text: NOW KNOW YE, that I, the said George Horatio Jones, 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 :-
-
The object of this Invention is to fix firmly and painlessly by
atmospheric pressure an artificial set of teeth in the mouth, which is
effected by means of a suction valve. One form of this valve I make
by fastening a strip of spring metal (preferably of gold), say half an
inch long by one-sixteenth of an inch wide (according to the palate) by
a rivet at one end to the artificial palate, which is countersunk to
receive it. On the side of the strip of metal next the artificial palate a
thin piece of india-rubber or any other substance answering the same
purpose is attached, so as to cover a circular (or of any desired shape)
aperture or hole about one thirty-second of an inch in diameter previously
made in the artificial palate, by which means the re-entrance of air is
prevented. This arrangement constitutes the most simple form of a valve
for this
purpose.
The denture having been placed in the mouth a slight depression of
the tongue exausts the air between the natural and artificial palates,
thus causing a vacuum which is sufficient to firmly fix the denture in
the mouth.
T
Can Trustin Tanna have ha
the mouth.
In witness whereof, I, the said George Horatio Jones, have here-
unto set my hand and seal, this Fifth day of February, in the
year of our Lord One thousand eight hundred and seventy-six.
Witness,
R. G. WHITE,
3, Edith Grove,
London,
S.W.
GEO. H. JONES. (L.s.)