IMPROVEMENTS IN AND RELATING TO DENTURES OR PLATES FOR RETAINING OR SECURING ARTIFICIAL TEETH BY ATMOSPHERIC SUCTION
Year: 1880

page_text: LETTERS PATENT to Charles George Whiting, of Coventry, in the County
of Warwick, for an Invention of "IMPROVEMENTS IN AND RELATING TO
DENTURES OR PLATES FOR RETAINING OR SECURING ARTIFICIAL TEETH BY
ATMOSPHERIC SUCTION."
PROVISIONAL SPECIFICATION left by the said Charles George Whiting at
"
the Office of the Commissioners of Patents on the 7th December 1880.
IMPROVE-
CHARLES GEORGE WHITING, of Coventry, in the County of Warwick.
MENTS IN AND RELATING TO DENTURES OR PLATES FOR RETAINING OR SECURING
ARTIFICIAL TEETH BY ATMOSPHERIC SUCTION."
The object of this Invention is the better retention of plates or dentures in the
roof of the mouth, by means of making perfect the vacuum between the denture
and the roof.
In carrying out my Invention I form a hole in the centre of the denture, round
which I fix an anular metal disc or "eyelet." Each side of the denture round the
disc is hollowed, the hollow on the upper side being (advantageously) larger than
that on the under side. Into the upper hollow I fit a rubber disc, slightly
dished, connected by a ligature through the metal disc to a smaller rubber disc
fitted to the under side of the denture. The edge of the lower disc may be suitably
bevelled so as to fit exactly into the lower hollow.
. When the denture is placed in the mouth, the lower disc should be slightly
pressed, causing an immediate exhaustion of air between the roof and the denture,
and the denture will be firmly secured by atmospheric pressure.
My Invention may be adapted to dentures of vulcanite, platinum, or any of the
materials used in dentistry for making dentures.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Charles George Whiting in the Great Seal Patent Office on the
4th June 1881.
CHARLES GEORGE WHITING, of Coventry, in the County of Warwick. "IMPROVE-
MENTS IN AND RELATING TO DENTURES OR PLATES FOR RETAINING OR SECURING
ARTIFICIAL TEETH BY ATMOSPHERIC SUCTION."
The object of this Invention is the better retention of plates or dentures in the
mouth.
In carrying out my Invention, I form a hole in the centre of the denture, round
which I fix an annular metal disc or eylet. Each side of the denture round the
disc is hollowed, the hollow on the upper side (for an upper denture) being advan-
tageously larger than that on the under side.
Into the upper hollow I fit a rubber disc, slightly dished, connected by a ligature
through the metal disc to a smaller rubber disc fitted to the under side of the denture.
The edge of the lower disc may be suitably bevelled so as to fit exactly into the
lower hollow.
When the denture is placed in the mouth, the lower disc should be slightly
pressed, causing an immediate exhaustion of air between the roof and the denture,
and the denture will be firmly secured by atmospheric pressure.
My Invention may be adapted to dentures of vulcanite, platinum, or any of the
materials used in dentistry for making dentures.
And in order that my Invention may be more clearly understood, I will now
proceed to describe the same by reference to the Drawings annexed, in which—
Fig. 1 is an enlarged plan of a denture;
Fig. 2, a plan of the upper disc;
Fig. 3, a section, all on an enlarged scale.
A is the denture or dental plate; B, B¹, the upper and lower rubber discs,
connected by the ligature C; D, the metal eylet secured in the denture.
In adapting my Invention for lower dentures, I form the rubber discs or washers
of an oval shape, as shown in-
Fig. 4, a plan;
Fig. 5, plan of eylet or metal box;
Fig. 6, vertical section.
E, the rubber formed of an oval and dished contour as shown, having a lower
piece E¹, both being united by ligature F; a slot or slots G in the top of
the eylet or box H allows of the lower rubber being more easily inserted and
removed.
Having thus particularly described and ascertained the nature of my said
Invention for "Improvements in and Relating to Dentures or Plates for Retaining
or Securing Artificial Teeth by Atmospheric Suction," and the manner of per-
forming the same, I would have it understood that what I claim as novel and
original is,―
Firstly. The manufacture of dentures or dental plates fitted with the improved
suction apparatus, substantially as and for the purposes described.
Secondly. In combination with the denture body or plate, the rubber discs or
pieces united by a ligature, and fitted in a metal eylet or box, substantially as and
for the purposes described.
In witness whereof, I, the said Charles George Whiting, have hereunto set my
hand and seal, this Twenty eigth day of May, in the year of our Lord
One thousand eight hundred and eighty one.
CHARLES GEORGE WHITING. (L.S.)