Specification of Henri Adrien Bonneville : mineral teeth.

  • Bonneville, Henri Adrien.
Date:
1869
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Henri Adrien Bonneville : mineral teeth. Source: Wellcome Collection.

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    Bonneville’s Improvements in the Manufacture of Mineral Teeth. from Jean Baptiste Abel Duchesne, a person resident at Hue Lafayette, in Paris, aforesaid, Surgeon, to be as follows :— The Invention communicated to me relates to a new and improved system of fixing mineral teetli to the dental piece, and consists in a new and improved mode of producing mineral teeth. Each tooth is 5 furnished with a hollow of a size exceeding that of the orifice, by which orifice the rubber in its plastic state enters into the tooth, assuming inside the internal configuration, and, as it were, the shape of a nail head of a pyramidal form or of the form of a flattened cone, and the rubber being properly vulcanized the tooth becomes firmly attached to 10 the dental piece. The hole being obtained by placing on the rear side of the mould of the tooth, which is moulded of materials well known to tooth manufacturers, the base of a piece of wood, or of any other material cut into the shape of a cone, and which can be consumed or melted at a lesser degree of heat than that required for the baking of the tooth, 15 the said piece of wood or other material being consumed or done away with during the process of biscuiting, there remains in the centre of the tooth a hollow corresponding in size and shape with the wood or other material which has disappeared. The principle of strength claimed for this tooth consists in the fact that the rubber, a portion of the dental 20 piece to which it is to be attached, entering into the tooth itself, the tooth actually forms part and parcel, so to speak, of the dental piece; and the principle of the Invention consists in the hollow in the centre of the tooth of a larger size than the orifice by which the rubber or other plastic material is introduced of whatever form this hollow may be, 25 whether produced by the consuming, melting, or annihilating of any animal, vegetable, or mineral matter that can be so annihilating by a lesser degree of heat than that required for the biscuiting or baking of the tooth. SPECIFICATION in pursuance of the conditions of the Letters Patent, 3Q filed by the said Henri Adrien Bonneville in the Great Seal Patent Office on the 29th May 1869. TO ALL TO WHOM THESE PRESENTS SHALL COME, I, Henri Adrien Bonneville, of the British and Foreign Patent Offices, 18,