US325626A

US325626A - phillips

Info

Publication number: US325626A
Authority: US
Publication date: 1885-09-01
Anticipated expiration: 1902-09-01

Description

T. S. PHILLIPS,

v ARTIPIGIAL TOOTH. No. 325,626. Patented Sept. 1, 1885.

(No Model.)

Witnesses A Inve nor fi i n. Perms, Pholvhlhogmphar. Waahinglon. a. a

UNITED STATES PATENT FFIC a.

THOMAS S. PHILLIPS, OF BUFFALO, NEW YORK, ASSIGNOR OF ONE-HALF TO WILLIAM F. STRASMER, OF SAME PLACE.

ARTIFICIAL TOOTH.

PJPECIPICATION forming part of Letters Patent No. 325,626,'dated September 1, 1885.

Application filed June 20, 1885. (No model.)

T all whom it may concern.-

Be it known that I, THOMAS S. PHILLIPS, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented a new and useful Improvement in the Art of lVIanufacturing Artifinial leeth, of which the following is a specification.

In the accompanying drawings, Figure 1 represents two artificial teeth, one with afill: ing, O, and the other with a cavity. O. Figs. 2 and 3 represent cross-sections of F and G, and Fig. i represents the tooth F when coated by the process herein described and united 1 with others and ready for market.

My invention relates to dentistry, and is an improvement in the art of manufacturing artificial teeth.

At present the only method known to manu- 2o facturers of artificial teeth for representing or imitating the gold filling in a natural tooth is to form a similar cavity in the artificial tooth and then fill that cavity with gold precisely as the natural tooth was filled, and the gold used 2 5 and time employed is about the same as that required in filling the natural teeth.

Another consideration is that the artificial tooth when filled is frequently so weakened by reason of the cavity formed therein that it 0 will break when used and thereby ruin a whole set.

Now, to save the time and labor employed and the gold used in filling a tooth, and to ob viate the necessity of weakening a tooth by forming a cavity therein, is the object of my 3 5 invention.

To accomplish these results, that portion of the surface ofa tooth which it is desired should appear as having been filled with gold is coated or covered with a coating or layer of 40 the prepared gold now so common in the manufacture of porcelain and china ware. The tooth after being thus coated is baked or fired in a manner similar to the baking or firing of the above-mentioned ware. In this manner the gold becomes incorporated with or adheres to the enamel of the tooth, so as to form aperfect imitation of and substitute for the gold filling now so common, and the trouble of forming a cavity or of filling it after it is formed is saved; besides, portions of a tooth which are too frail to be in fact filled may by this process be represented as filled and the strength of the tooth preserved.

What I claim, therefore, and desire to secure by Letters Patent, is

The method herein shown and described for representing and imitating the gold filling in a natural human tooth, which consists in coating a portion of the surface of an artificial to human tooth with liquid prepared gold, and then baking or firing the tooth, all as and for the purpose set forth.

THOMAS S. PHILLIPS.

Witnesses:

J OHN FALKNER, J r., S. J. DOUGLASS.