A NEW OR IMPROVED SUCTION VALVE FOR ARTIFICIAL TEETH to be as follows:
Year: 1885

page_text: I JOHN OLIVER CHAPMAN PHILLIPS of N° 73 Colmore Row Birmingham in the
County of Warwick Surgeon Dentist do hereby declare the nature of the said
Invention for "A NEW OR IMPROVED SUCTION VALVE FOR ARTIFICIAL TEETH to
be as follows:-
"
My invention consists of a suction valve constructed substantially as bereinafter
described to be inserted in the Vulcanite Celluloid or other material used for
constructing dentures or frames of artificial teeth for the purpose of retaining by
suction or atmospheric pressure the said dentures or frames in the proper position
in the mouth.
My said new or improved suction valve consists of a slightly dome shaped disc
of elastic india rubber the marginal part of which is held between two rings of
metal or other material such as ebonite the said rings constituting a frame to the
elastic india rubber or acting part of the valve. The said rings are secured
together with the india rubber between them by rivetting or clamping or turning
over the edge of one ring upon the edge of the other ring. On opposite sides of
one of the rings of the valve frame are pierced or perforated ear or tag pieces for
the purpose hereinafter described.
My improved suction valve is inserted in the Vulcanite or Celluloid dentures or
frames during the process known as packing by tacking or fastening the said valve
to the plaster model by means of pin points passed through the holes or perforations
in the tag or ear pieces on the frame of the valve or by passing pins through the
frame itself. Should it be desired to have a cavity between the valve and the roof
of the mouth a metal disc or blank of the size and shape required in the denture or
frame is tacked or fastened to the plaster model under and concentric with the
valve.
Although I prefer to use two rings as described between which the marginal part
of the india rubber is gripped yet the lower ring may be replaced by a disc.
My improved valve may be made of various sizes and shapes.
DAL
L
19
1
2

page_text: I JOHN OLIVER CHAPMAN. PHILLIPS of N° 73 Colmore Row, Birmingham in the
County of Warwick, Surgeon Dentist do hereby declare the nature of my
" and
Invention for "A NEW OR IMPROVED SUCTION VALVE FOR ARTIFICIAL TEETH
in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement :-
My invention consists of a suction valve constructed substantially as hereinafter
described to be inserted in the vulcanite, celluloid or other material used for
constructing dentures or frames of artificial teeth for the purpose of retaining by
suction or atmospheric pressure the said dentures or frames in the proper position
in the mouth.
My said new or improved suction valve consists of a slightly dome shaped disc
of elastic india rubber, the marginal part of which is held between two rings of
metal or other material, such as ebonite, the said rings constituting a frame to the
elastic india rubber or acting part of the valve. The said rings are secured
together with the india rubber between them by rivetting or clamping or soldering
or turning over the edge of one ring upon the edge of the other ring. On opposite
Bides of one of the rings of the valve frame, are pierced or perforated ear or tag
pieces for the purpose hereinafter described.
My improved suction valve is inserted in the vulcanite or celluloid dentures or
frames during the process known as "packing," by tacking or fastening the said
valve to the plaster model by means of pin points passed through the holes or
perforations in the tag or ear pieces on the frame of the valve; or by passing pins
through the frame itself; or by placing the valve in the proper position in the
palate without fastening it to the model.
Should it be desired to have a cavity between the valve and the roof of the
mouth, a metal disc or blank of the size and shape required in the denture or
frame is tacked or fastened to the plaster model under and concentric with the
valve.
Although two rings may be used as described between which the marginal part
of the india rubber is gripped, yet the upper ring may be dispensed with and the
india rubber disc connected to a single ring by rivets or loops.
My improved valve may be made of various sizes and shapes.
Figure 1 of the accompanying Drawing represents in plan of under or concave
side and Figure 2 in cross section a suction valve constructed according to my.
invention applied to the vulcanite or celluloid denture or frame of artificial teeth.
Figure 3 represents in plan, side elevation and cross section, a suction valve
constructed according to my invention in which one metallic ring to form the rim
or frame of the valve is used and Figure 4 represents in plan, side elevation and
cross section, a suction valve constructed according to my invention in which two
metallic rings are used to form the rim or frame, the said Figures 3 and 4 being
drawn double the full size.
The valve Figure 3 consists of a slightly dome shaped dise of vulcanized or
elastic india rubber a to the marginal part of one face of which the metal ring b is
fixed by the looped pins c, e or by headed pins, the said ring b constituting a rim
or frame to the india rubber disc a of the valve; d is a cavity in the dome shaped
A valve of the kind represented in Figure 3 is shown combined with the
denture or frame of artificial teeth represented in Figures 1 and 2.
disc a.

page_text: The valve Figure 4 consists of a slightly dome shaped disc of vulcanized or
elastic india rubber a which is held or gripped between the opposed faces of the
two metal rings b, b, the india rubber disc a and rings 6, 6 being secured together
by the rivets c, c; but the said rings may be secured together in either of the ways
herein before pointed out.
The perforated tag or ear pieces on the rim or frame of the valve which I have
herein before described, are not represented in the Drawing as the use of the said
ear pieces is optional.
The metallic rim or frame b or b, 62 of the valve may either be made of gold or
platinum or dental alloy or such other metal or alloy as is or may be used for
dental purposes, or of a hard non-metallic material, such as ebonite.
"
Figure 5 represents a pasteboard disc which I employ during the " 'packing'
process as herein after described, the said disc having the same size and thickness
as the valve to be inserted in the vulcanite and Figure 6 represents the metal
dome shaped dise or blank which is used for forming the cavity in the valve
herein before referred to.
In inserting my new or improved suction valve in the vulcanite or celluloid
denture or frame during the process of "packing" I proceed as follows:-The
plaster model palate being placed in the ordinary flask ready for the packing
process the disc of pasteboard represented in Figure 5 is placed on the middle of
the model palate and the india rubber is packed around the said disc and the
ordinary treatment resorted to. The pasteboard disc Figure 5 is next removed and
any excess of india rubber is also removed. A circular depression is thereby left
in the packing material of the palate of the size and thickness of the valve to be
inserted in the palate. The metal blank or disc Figure 6 to form the cavity in the
valve is next secured to the model, flat face downwards, by pinning it at its centre
to the centre of the depression in the palate and the valve is placed over the said
metal disc and if necessary the said valve may be fastened to the model in the
manner herein before described. The packing and the vulcanizing processes are
next completed in the ordinary way. The valve is in this way inserted in the
vulcanite of the denture or frame as illustrated in Figures 1 and 2 and forms part
of the said denture or frame.
It will be seen by an examination of Figures 1 and 2 that the valve passes from
one to the opposite side of the artificial palate, the metal frame or rim of the valve
and the outer face of the elastic disc of the valve being situated on the concave
side of the palate and the inner face of the elastic disc of the valve, provided with
a cavity, on the upper or convex side of the palate.
When the outer or concave face of the valve is gently pressed by the tip of the
tongue all air is expelled from the palatine cavity d in the valve and the denture
or frame is very firmly secured in position by suction or atmospheric pressure.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
A new or improved suction valve for artificial teeth consisting of a slightly
dome shaped disc of elastic india rubber to the marginal part of which a rim or
frame formed of one or two rings of metal or hard non-metallic material, such as
ebonite, is secured, the said suction valve being inserted in the vulcanite celluloid
or other material of the denture or frame of artificial teeth and acting substantially
as hereinbefore described and illustrated in the accompanying Drawing.
Dated this Fourth day of November 1885
JOHN OLIVER CHAPMAN PHILLIPS.