Mechanical Dentistry. Page: 2 of 2
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UNITED STATES PATENT OFFICEo
WILLIAM DUDLEY MAYFIELD, OF FORT WORTH, TEX., ASSIGNOR TO WILLIAM
F. MAYFIELD AND ISAAC T. MAYFIELD, BOTH OF SAME PLACE.
Er:CIFICATION forming part of Letters Patent No. 341,929, dated May 18, 1886.
Apllliation filed August 6,1885. Serial No. 173,756. (No model.)
To a2l zvhon it nacy concern:
Be it known that I, WILLIAa DUDLEY 1MAY-
.FIELD,a citizen of the United States,residing at
Fort Worth, in the county of Tarrant and State
5 of Texas, have invented certain new and useful
Improvements in Dental Plates and Fastening
Artificial Teeth; and I do hereby declare that
the following is a full, clear, and exact descrip-
tion of the same, reference being had to the
io annexed drawings, making a part of this speci-
fication, and to the letters and figures of refer-
ence marked thereon.
Figure 1 of the drawings is a perspective
view of a dental plate constructed according
15 to my invention. Fig. 2 is a sectional detail
view through one of the conical holes showing
the split bolt in position as a means for fast-
ening the teeth to the plate; and Fig. 3 a simi-
lar view with the split bolt removed.
20 The present invention has relation to certain
new and useful improvements in the construc-
tion of dental plates and the manner of attach-
ing the teeth thereto, substantially as shown in
the drawings, and hereinafter described and
In the accom paying drawings,A represents
the dental plate of any desirable material from
which such plates are constructed, said plate
having an indented or roughened surface, as
30 shown at a, thus greatly increasing its area and
making the plate hold more secure, the capil-
lary attraction being materially increased.
This surface I form by swaging it against a
piece of wire webbing of suitable fineness,
35 although any other method may be employed
to obtain such surface.
The plate A, which is preferably of alumin-
inm,is formed by punching or otherwise a series
of conical-shaped holes, b, and a groove, c, ex-
tending from one hole to the other, the teeth 4o
being secured by vulcanite rubber, or other ma-
terialansweringthe same purpose, engaging the
pins in the teeth and passing through the apex
of the cone-shaped holes, and spreading in the
base or larger portion thereof and into the 45
groove, or by fitting split bolts d, the head
thereof seating itself in the base of the holes,
as shown in Fig. 2, the split or hooked ends
engaging the rubber.
By means of the holes and groove a perma- 5o
nent attachment of the teeth to the plate is
secured without the necessity of using solder,
thereby avoiding the danger of warping the
plate by heat. When the rubber passes into
and through the holes, it will spread in the 55
groove from one hole to another, thus making
a continuous strip of rubber on the upper sur-
face of the plate which fills the groove.
Having now fully described my invention,
what I claim as new, and desire to secure by 6o
Letters Patent, is-
A dental plate provided with a series of
holes or perforations and a continuous groove
upon the upper surface of the plate communi-
cating with the holes or perforations therein, 65
substantially as and for the purpose set forth.
In testimony that I claim the above I have
hereunto subscribed my name in the presence
of two witnesses.
WILLIAM DUDLEY M.AYFIELD.
W. A. STOKES,
J. H. SMITH.
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Mayfield, William Dudley. Mechanical Dentistry., patent, May 18, 1886; [Washington D.C.]. (texashistory.unt.edu/ark:/67531/metapth171263/m1/2/: accessed December 16, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; crediting UNT Libraries Government Documents Department.