US1304720A - Dental pliers - Google Patents

Description

J. L. YOUNG.

DENTAL PLlERS.

APPLICATION FILED JUNE 21. 1918.

1,304,720. Patented M53127, 1919. 5 T

JACOB town Yomve, OFNEW nociiELLE, NEW YORK.

' DENTAL rmsnsi To all whom'z't may-concern: I

l 3e it known thatI, JACOB Lows YOUNG, a cltizen of the United States, and a resident of New Rochelle, county of W'estchester, and

State of New York, have invented certain new and useful Improvements in Dental Pliers, of which the following is a specification. I

This invention relates particularly to that type of dental pliers used in placing bands upon teeth, and in shaping the band material about the tooth to be fitted.

The main object of the invention is to provide a pliers of the class described adapted to conveniently and firmly grasp the two ends of the band material, and to hold it while it is being shaped about the tooth.

Another object of the inventionis to provide in a pliers of the class described, means whereby the two ends of the band material will be accurately held, and to prevent them from slipping or sliding one over the other, during the act of clampmg or gripping them with the pliers.

In the drawing, Figure 1 is a side elevation of a pliers constructed in accordance with this invention, showing the jaws closed;

Fig. 2 a similar View, showing the jaws open;

Fig. 3 an edge view of the pliers;

Fig. 4: a detail sectional view taken on th line IVIV of Fig. 1;

Fig. 5 an enlarged detail view, showing the plier jaws open and the band material in place between them; and V Fig. 6 a view similar to Fig. 5, showing the jaws closed and the band material clamped between them.

Referring to the various parts by numerals, 1 and 2 designate the jaws of the pliers, said jaws being carried by the usual handle members which are crossed and pivoted together in any well-known manner. The jaw 1 is provided at its outer end with a laterally extending beak 3; and the j aw2 is provided with a corresponding laterally extending beak 4: which is adapted to be brought into engagement with the beak 3 when the jaws are brought together. The beaks 3 and 4 are in the same plane with the jaws, the aws and the beaks lying in a plane transverse of the axis of the pivot.

The beak 3 at its free end is formed with an outwardly extending stop lug 5; and a short distance inwardly from said lug it is Specification of Iietters Patent; Patented May 27-, Application filed June 27, 1918. Seria1'No.242,21G.

formed on its clamping face with a gripping lug 6 The beak 4 is provided'on its inner or clamping face with a slight depression 7, adapted to receive the gripping lug 6 of the opposite" clamping beak. 'When' the jaws and b'eaks are brought together into clamping position, the end of the beak 4 will abut against the stop lug 5, and thegripping lug 6 will be received in the recess 7 as shown clearly in Figs. 4 and 6.

In using the pliers the two ends of the banding material 8 and 9, are broughttogether on the clamping face of the beak 3, and over the gripping lug 6, as shown in Fig. 5. Th clamping jaws and the beaks are then brought together, and because of the peculiar movement of the beaks in approaching each other, the, two ends of the band material will be forced against the stop lug 5 and finally gripped tightly by the gripping lug, indenting the band material into the recess 7. The stop lug insures the two ends of the band material being accurately placed one over the other, said lug forming a stop which is adapted to be engaged by the edges of the two end portions of the said material.

The stop lug also serves as a guide to the operator in placing the band material on the clamping surface of the beak 3, said lug serving in the nature of a gage. If in placing the two end portions of the band material on the beak 3 the said edges should not be accurately alined with the stop lug, they will be brought against said stop lug by the gripping action of the beaks.v

The position of the beaks'with respect to the jaws and with respect to the handles of the pliers is important, as it enables the operator to conveniently place said beaks on the inner side of the tooth to be operated upon, and to securely and accurately hold the banding material while shaping it about the tooth.

What I claim is:

1. A dental pliers, comprising a pair of jaws and handles therefor, each of said jaws being formed with a laterally extending clamping beak, said beaks lying in the same plane as the jaws, said plane, being transverse of th axis of the pivot of said jaws,

a stop lug formed on one of said beaks at r the outer end thereof, said stop lug serving as a gage and as a stop for the other beak.

2. A dental pliers, comprising a pair of jaws and handles therefor, each of said jaws being formed with a laterally extending clamping beak, said beaks lying in the same plane as the jaws, said plane being transverse of the axis of the pivot of said jaws, a stop lug formed on one of said beaks at the outer end thereof, said stop lug serving as a gage and as a stop for the other beak, a gripping lug carried by one of said beaks, and a recess formed in the other beak to receive said gripping lug.

3. A dental pliers, comprising a pair of jaws and handles therefor, each of said jaws being formed With a laterally extending Copies of this patent may be obtained for five cents each, by addressing the clamping beak, said beaks lying in the same plane as the jaws, said plan being transverse of the aXis of the pivot of said jaws, a stop lug formed on one of said beaks at the outer end thereof, said stop lug serving as a gage and as a stop for the other beak, a gripping lug formed on the beak carrying the stop lug, and a recess formed in the other beak to receive said gripping lug.

This specification signed this 20th day of June, A. D. 1918.

JACOB LOWE YQUN G.

Commissioner of Patents,

Washington, D. 0.

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