IMPROVE- MENTS IN FIXING ARTIFICIAL TEETH."
Year: 1863

page_text: LETTERS PATENT to Dennis William Ransom, of 24, Pembroke Place,
Liverpool, in the County of Lancaster, for the Invention of "IMPROVE-
MENTS IN FIXING ARTIFICIAL TEETH."
PROVISIONAL SPECIFICATION left by the said Dennis William Ransom
at the Office of the Commissioners of Patents, with his Petition, on the
6th March 1863.
I, DENNIS WILLIAM RANSOM, of 24, Pembroke Place, Liverpool, in the
County of Lancaster, do hereby declare the nature of the Invention for
"IMPROVEMENTS IN FIXING ARTIFICIAL TEETH," to be as follows:--
This Invention has for its object improvements in fixing artificial teeth,
and is applicable when fixing teeth in vulcanite or like moulded bases..
Artificial teeth have before been made with metal pins, which have usually
been bent in opposite directions, in order that when the base of vulcanite
or other similarly formed base has been constructed and rendered hard, the
teeth may be held securely to the base. This mode of applying pins has not,
however, been free from objection.
Now according to my improvement I form the pins, or it may be a single
pin, with a screw thread or threads thereon, or with notches; if two or more
pins are applyed to a tooth, they may be arranged parallel to each other, but
I prefer that they should incline away from each other.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Dennis William Ransom in the Great Seal Patent Office on
the 4th September 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, DENNIS
WILLIAM RANSOM, of 24, Pembroke Place, Liverpool, in the County of Lan-
caster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixth day of March, in the year of our Lord One
thousand eight hundred and sixty-three, in the twenty-sixth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Dennis William Ransom, Her special licence that I, the said Dennis William
Ransom, my executors, administrators, and assigns, or such others as I, the
said Dennis William Ransom, 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
IMPROVEMENTS IN FIXING ARTIFICIAL TEETH," upon the condition (amongst
others) that I, the said Dennis William Ransom, my executors or adminis-
trators, 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.
66
NOW KNOW YE, that I, the said Dennis William Ransom, 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 improvements in fixing artificial teeth,
and is applicable when fixing teeth in vulcanite or like moulded bases.
Artificial teeth have before been made with metal pins, which have usually
been bent in opposite directions, in order that when the base of vulcanite
or other similarly formed base has been constructed and rendered hard, the
teeth may be held securely to the base. This mode of applying pins has not,
however, been free from objection.
Now, according to my improvement I form the pins, or it may be a single
pin, with a screw thread or threads thereon, or with notches; if two or more

page_text: pins are applied to a tooth, they may be arranged parallel to each other, but
I prefer that they should incline away from each other.
Figure 1 of the Drawings hereunto annexed shows a side view of an
artificial tooth provided with two metal pins having screw threads cut upon
them according to my Invention, the two pins are in the tooth shown in this
Figure placed one below the other. In the tooth shown at Figures 2 and 3,
the two screw pins are placed side by side, and the pins are inclined from each
other, as is preferred. In place of two pins being employed, each tooth may
be provided with a single screwed pin only, as is shown at the transverse
section, Figure 4. The pins are in each of the Figures shown to have a screw
thread cut upon them, but the pins may if preferred have notches cut upon
them. The heads of the pins are shown to be imbedded in the teeth as is the
case with the pins heretofore used.
In witness whereof, I, the said Dennis William Ransom, have hereunto
set my hand and seal, this Twenty-fifth day of August, in the year
of our Lord One thousand eight hundred and sixty-three.
DENNIS WILLIAM RANSOM. (L.s.)