Improved nippers or forceps for dental purposes / [Valentin Glatter].

  • Glatter, Valentin.
Date:
1889
Catalogue details

Licence: Public Domain Mark

Credit: Improved nippers or forceps for dental purposes / [Valentin Glatter]. Source: Wellcome Collection.

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    N° 10,963 A.D. 1888 Date of Application, 28th July, 1888 Complete Specification Left, 27th Apr., 1889—Acceptecl, 15th June, 1889 PROVISIONAL SPECIFICATION. Improved Nippers or Forceps for Dental Purposes. I, Valentin Glatter, ot 181 Rosengasse, Leitomisehl, Bohemia, in the Empire of Austria, do hereby declare the nature of this invention to he as follows :— This invention relates to nippers or forceps designed for the removal of the crowns of teeth. •*> In order to enable broken teeth to he rapidly and neatly levelled or made even without causing pain by removing the projecting crowns or crown pieces, I have devised two pairs of nippers or forceps, one pair of which is used for the teeth in the upper jaw and the other pair for those in the lower jaw. In both pairs of nippers or forceps the principle of construction is the same, and is 10 designed to enable them to act with great accuracy and expedition, and to he operated with facility. The pair of nippers or forceps used for the lower teeth comprises two parts, one of which receives two cutters and the other is provided with a tappet or cam for effecting the movement of one of the said cutters. 15 On the upper portion of the former part are two cheeks which are connected below and serve as lateral guides for the two cutters. These cutters are provided with sharp edges that are placed exactly opposite each other. In mounting the nippers or forceps the lower of the two cutters which constitutes 20 a slide is inserted between the aforesaid cheeks so that its lower bearing surface will be upon the bearing surface in the head of the upper part of the nippers or forceps. After this the upper cuttor is placed with its lower bearing surface upon the upper bearing surface of the said sliding cutter and is secured in its place through the medium of a pin. 25 The tongue provided on the lower part is then inserted between the cheeks of the upper part of the nippers or forceps in such a manner that the cam or tappet on the lower part engages with a claw of the sliding cutter and the lower part is secured in its place by means of a pin. The nippers or forceps are now ready for use. If the crown of a tooth is to be removed, the said two parts ot the nippers or 30 forceps are opened whereby the lower or sliding cutter is drawn back. The upper cutter is then lightly pressed against the tooth, and the two handles of the nippers or forceps are caused to approach each other, thereby cutting through the crown without pain and without shaking the root of the teeth. In this pair of nippers or forceps the cutting movement is one-sided only, that is 35 to say only one cutter is caused to move in the cutting action. In the other pair of nippers hereinafter described movement is imparted to both cutters. Both parts of the nippers or forceps are provided with cheeks and one or the first part receives the two cutters in a slit formed therein whereas the other or second part encloses the former part in a slit. The two cutters are provided with incisions or 40 notches which are opposite two guide slits provided in the head of the aforesaid first part of the nippers or forceps. The second of these nippers or forceps has holes for the insertion of pins that are adapted to move in the notches. A bolt or pin connects the halves or parts and also serves as the fulcrum for the shanks of the nippers or forceps. 45 On opening the handles the two cutters will likewise open, and the cutting is effected by pressing the two handles together in the opposite direction. A special advantage of the improved nippers or forceps consists in the facility with [Price 8</. |