US947378A - Fastening means for artificial teeth. - Google Patents

Description

T. E. DIMELOW. FASTENING MEANS FOR ARTIFICIAL TEETH. APPLICATION TILED NOV. 12. 1908. 94?,378 Patented Jan. 25; 1910.

NV MN III Ll- UNITED OFFICE.

THOMAS E. DHELOW, OF YORK, PENNSYLVANIA, ASSIGNOB OF ONE-HALF '10 JOHN W.

MOKINNON, OE YORK, IPENNSYLVANIA. I

FASTENING MEANS ron ARTIFICIAL TEETH.-

Patented Jan. 25, 1910.

Application filed November 12, 1908. Serial No. 462,311.

To all whom at may concern:

Be it known that I, THOMAS E. DIMELOW, a citizen of the United States, residing 'at- York, in the county of York and State of Pennsylvania, have invented cert: 1 new and useful Improvements in Fastening Means for Artificial Teeth; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to artificial teeth and is especially directed to means whereby the teeth may be readily attached to the backing plate or bridge, and whereby pressure Wlll be relieved to a large extent from the fastening means and evenly distributed throu hout the teeth and upon the backing.

Wifil these and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts, as will be more fully de- 1 mum strength of the teeth is preserved. To

protect the scribed and particularly pointed out in the appended clalm.

In the accompanying drawings, Figure 1 represents a vertical section of the tooth se-' cured to the backing plate or crown; Fig. 2 i

is a similar view showing a slightly modified form of the invention; Fig. 3 1s a transverse section taken on the plane indicated by the doted lines 3-3 of Fig. 1; Fig. 4 is a vertical section of a modified form of the invention,

showing the pins arranged in vertical alinep ment; and F1g. 5 is a similar view, showing j the use of but one pin. Fig. 6 is a-horizontal 0 5 this reason the pins Wlll not become broken section taken on the line 6-6 of Fig. 5. g

In the. embodiment illustrated, the numeral 1 indicates the body member which may be the backing or plate, and 2 the artirovided with a pair of of laterally spaced pins 4, projecting out- 5 wardly at an acute angle from the backing same position,

and for this reason the backing plate for j one tooth will fit any of the relative teeth I connection w1th t e accompanylng drawings,

a pair-o pins or posts is set in position and I temporarily T5 tened to the plate, after which operation the tooth is removed and the operator proceeds to. finish the work on the bridge. About the last work to be done is to put the tooth back on the pins which is securely fixed thereto by cement or other suitable adhesive material. As shown in the modified form of the invention, illustrated in Fig. 2, the pins or posts may be corrugated or slightly undercut to provide grooves for the reception of the cement, whereby the pins may be more'firmly held in the sockets of the teeth.

As heretofore stated, the pins being independent of the back .plate and aflixed thereto by solder or other equivalent means, a supply of teeth and pins can be carried by a dentist at a comparatively small expenditure, and the teeth placed in position with a minimum of labor. Also by reason of the fact that the teeth are absolutely solid, except the pin receiving sockets, substantially the maxicutting edge of the tooth, the same may be formed with a bite-level which will permit the backing to cover the cutting edge and thoroughly protect the porcelain or other material from which the tooth is "made. 1

It is to be particularly observed that by disposing the pins at an angle or inclination, such as shown, they are relieved of ressure to a great extent and the pressure distributed uniformly throughout the tooth and upon the backing plate and for from the backing and the tooth fall from place, which would be very liable to occur if the pins were disposed in a position aproximately at right-angles with the backmg and the pressure exerted directly thereon. It is to be understood, of course, that the pin receiving sockets in the teeth may be arranged 1n vertical alinement, as shown in Fig. 4, or only one pin may be used as shown plate. The pin receiving sockets are in the 5 in Fig. 5. The right is reserved to use metal same angle and of the same i From the fore oing description, taken in the construction and operation of the mvention willbe readily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details of construction may be resorted to "without departing from the principle or sacrificing any of the advantages of the invention as defined in the appended claim.

Havin thus described and ascertained the nature oFmy-invention, what I claim as new and desire to secure .by Letters-Patent is:

An artificial tooth comprising a porcelain front portion or facing having a straight rear face and an obliquely formed socket extending inwardly and ownwardly into the lingual portion of the tooth from the rear face thereof, a straight fiat metallic backing having an aperture extending diagonally therethrough at an angle to the'longitudinal lane of said plate so as to aline withvsai socket wlienthe partsare assembled,"and a pin extending through the aperture into the socket and secured to the facing and backing.

In testimony whereof I have hereunto set my hand n presence of two subscribing witnesses.

THOMAS E. DIMELO\V.

, Witnesses: I

J. HO ARD MANIFOLD, l A. J. BRENNEMAN.

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