Improvements in and connected with Dental Plates for Artificial Teeth.
Year: 1897

page_text: Date of Application, 3rd July, 1897
Complete Specification Left, 2nd Nov., 1897-Accepted, 4th Dec., 1897
PROVISIONAL SPECIFICATION.
Improvements in and connected with Dental Plates for Artificial
Teeth.
I, MARY CLARKE JENKINS of 16 Minard Road Crossmyloof, Glasgow North
Britain, Widow of independent means, do hereby devlare the nature of this
invention to be as follows:-
This invention which relates to improvements in and connected with dental
plates for artificial teeth has for its object a more efficient means of retaining
these in position.
In carrying my invention into practice I form in that part of the wall coming
next the mouth and constituting the roof plate of the upper set of teeth a circular,
heart, or other convenient shaped recess or hollow, approximating in shape to the
said plate; and into this recess or hollow I place a correspondingly shaped piece
of rubber, of suitable thickness, secured to the plate by a central pin or rivet.
The said piece of rubber when in position lies flush with the surface of the roof
plate.
to
By virtue of the before mentioned arrangement the said disc or piece of rubber
constitutes a suction plate and so retains the set of teeth intimately adhering t
the roof of the mouth without the least liability of being displaced at any time.
In the lower set I arrange discs or other shaped pieces of rubber disposed at
suitable distances apart along the surface of the gum plate or contiguous thereto
so that in position the said dises or other shaped pieces adhere to the lower gums
and so prevent the teeth from rising as they so frequently do with the setting
presently in use.
It is here explained that I do not confine myself to the use of rubber to the
exclusion of any other elastic material or compound whereof the discs or pieces
aforesaid may be composed.
Data thin and day of T.,l.. 1907
MARY C. JENKINS
Applicant.
Improvements in and connected with Dental Plates for Artificial
Teeth.
I, MARY CLARKE JENKINS, of 16 Minard Road, Crossmyloof, Glasgow, North
Britain, Widow of independent means, do hereby declare the nature of this inven-
Price 8d1

page_text: tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
This invention which relates to improvements in and connected with dental
plates for artificial teeth has for its object a more efficient means of retaining these
in position.
In carrying my invention into practice I form in that part of the wall coming
next the mouth and constituting the roof plate of the upper set of teeth a circular,
heart or other convenient shaped recess or hollow, approximating in shape to the
said plate; and into this recess or hollow I place a correspondingly shaped piece
of rubber of suitable thickness, secured to the plate by a central pin or rivet. The
said piece of rubber when in position lies flush with the surface of the roof-plate.
By virtue of the before mentioned arrangement, the said disc or piece of rubber
constitutes a suction plate and so retains the set of teeth intimately adhering to the
roof of the mouth without the least liability of being displaced at any time..
In the lower set I arrange discs or other shaped pieces of rubber disposed at
suitable distances apart along the surface of the gum plate, or contiguous thereto
so that in position the said dises or other shaped pieces adhere to the lower gums
and so prevent the teeth from rising as they so frequently do with the setting
presently in use.
It is here explained that I do not confine myself to the use of rubber to the
exclusion of any other clastic material or compound whereof the discs or pieces
aforesaid may be composed.
In order that my intention may be properly understood and readily carried into
effect I have hereunto appended one explanatory sheet of drawings in the several
figures of which corresponding parts are marked with the same letters of reference.
Figure 1, is a plan of an upper set of artificial teeth looking down upon the
roof plate, to which my invention is applied.
Figure 2, is a transverse section of Fig 1, taken on the line a, b.
Figure 3, is an inverted plan of a lower set of artificial teeth looking down on
the gum plate to which also my invention is applied.
Figure 4, is a part transverse section of Fig. 3, taken on the line c, d.
Figure 5, is a plan of the heart shaped suction plate.
Figure 6, is a similar view of a disc suction plate, and,
Figure 7, is a transverse section and side elevation respectively of the disc suc-
tion plate, washer and pin for holding the said plate in position all hereafter more
fully referred to.
It will be seen in Figs. 1, and 2, that the roof plate which is indicated by the
letter A, is provided with a shallow recess B, of heart configuration. The recess
B, is so constructed as to receive a correspondingly shaped suction plate C, com-
posed of caoutchouc or other elastic compound which is retained in position to the
roof plate by a central pin D, and washer E. The pin D, passes through the roof
plate A, and is riveted on the lingual side as seen in Fig. 2, whilst the knob holds
the washer and suction plate in position.
It will be understood that the recess B, and suction plate C, may as conveniently
be of shield, trefoil, or other configuration approximating to the contour of the
roof plate to which it is secured. The projecting extremities of the said roof plate
A, is provided each with a recess for receiving the discs F, which in consequence
of the hollow in which they have to lie partake of an elliptic form in plan as seen
in Fig. 1. The said discs F, are secured to the roof plate in like manner to the
heart shaped suction plate with a central pin D, and washer E.
Referring to Figs 3, and 4, the discs F1, are arranged along the channel G, of
the gum plate H of the lower jaw, with or without recesses, but instead of the
number there shown they may be disposed in a greater or less number and in other
positions.
The said discs F¹ are securely held in position by a central pin D, and washer
E, similar to what have already been described with reference to Figs. 1;
and 2, and riveted to the lingual side of the plate.

page_text: It will be observed that each extremity of the plate is provided with two dises
F', and F placed one upon the other, and jointly secured by the pin D, and
washer E, as shown.
The arrangement of double discs may be adopted in lieu of the single discs where
found desirable.
It is to be understood that my improved suction plate may be as advantageously
employed to only part sets of artificial teeth plates as to complete sets.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I claim
is:-
1. In dental plates of artificial teeth, the suction plates composed of caoutchouc
or other elastic substance or compound substantially as and for the purposes herein-
before described and shown on the drawings.
2. The general arrangement and combination of parts operating substantially
as and for the purposes herein before described and shown on the drawings:
Dated this 30th day of October 1897.
MARY C. JENKINS.
Applicant.