Specification of Ephraim Mosely : artificial masticating apparatus.

  • Mosely, Ephraim.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Ephraim Mosely : artificial masticating apparatus. Source: Wellcome Collection.

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    Moselifs Impts. in the Manufacture of Artificial Masticating Apparatus. to the cement employed in fixing the layer of india rubber d, to the plate a, which india rubber is intended to cover the whole of the metal surface that would in its absence be brought into contact with the gum. It will be understood that the india rubber is shewn deficient in Fig. 1, for the purpose of exposing part of the metal 5 plate and interposed wire gauze to view. In some cases it may be thought desirable to form on the gold plate an artificial gum, so that the teeth may appear to be imbedded as in nature. When this is required, I affix to the gold plate a, a suitably moulded perforated plate or wire gauze frame, composed of 10 platinum or other non-oxidizable metal, and I cover this plate or frame with a preparation of india rubber of the color of the natural gum, effecting the adherence of the india rubber to the metal by means of suitable cement, and thereby an effect may be obtained, closely resembling the setting of the teeth in the natural gum as 15 shewn at Fig. 3; or I use a colored solution of india rubber, and apply it, by means of a camel’s hair brush, to the metal gum, laying coat upon coat, until a sufficient thickness is obtained. This solution, as well as the preparation of colored india rubber above mentioned, I produce by dissolving the india rubber in chloroform, 20 and mixing vermillion therewith. When economy is an object, I propose, as a modification of the plan above set forth, to apply the coating of india rubber to a bone frame without the intervention of wire gauze. In such case, I adopt the mode of fastening shewn at Figures 4, and 5, in which 25 Fig. 4, is a plan view, and Fig. 5, a cross section of a bone frame thus fitted. In these Figures e, e, are small plates of gold set at convenient distances apart, and made to press upon the layer of india rubber d, by means of gold pins passing through them and entering the bone frame, and by this means the india rubber 30 cushion or covering is secured in its place. Having now set forth the nature of my Invention, and described the manner of carrying the same into effect, I wish it to be under¬ stood that under the above in part recited Letters Patent I claim, first, interposing between the gum of the wearer of artificial teeth, 35