Specification of Alexander Prince : palate and tooth plates.

  • Prince, Alexander.
Date:
1862
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Alexander Prince : palate and tooth plates. Source: Wellcome Collection.

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    Princes Improvements in Palate and Tooth Plates for Dental Purposes. NOW KNOW YE, that I, the said Alexander Prince, do hereby declare the nature of the said Invention, and in what manner the same is to be performed, to be particularly described and ascertained in and by the following * >** statement:— 5 The objects of this Invention are to enable palate and tooth plates to be securely attached within the human mouth without the use of wires, springs, or other mechanical adjustment, and to supersede the American “ sucking set *’ of teeth, the fastness of which in the mouth depends solely on the pressure of the air ; whereas by this Invention the air is made use of chiefly 10 to form the organs of fastness or security to the plates out of the pituitary membrane, by causing portions thereof to pass through holes formed in the plates, thus fastening the same by means of button-like protuberances of the pituitary membrane, which are necessarily the result of the application to the pituitary membrane of these plates so provided with holes. This fact renders 15 the pressure of the air afterwards but of very little consequence or utility. The Invention will be more readily understood by reference to the accom¬ panying Sheet of illustrative Drawings, and to the numeral figures and letters marked thereon respectively, as follows :— Description of the Drawings. • ‘ 20 Fig. 1 represents the palate and upper jaw bone, without teeth; Fig. 2 shew^s the palate after the sucking protuberances or pituitary membrane pro¬ tuberances or buttons have formed themselves in consequence of wearing the button set of teeth ; Fig. 3 is a representation of the button set of teeth belonging to the two former Drawings, h shews an edge turned .up on the 25 perforated plate. Fig. 4 is a section taken through the line A, B, at Fig. 3, which shews the perforated plate, to which is soldered or attached the cover c for the protection of the pituitary buttons ; and Fig. 5 represents a common tooth plate, on one side of which will be seen the hook fastening, and on the other the button fastening. Similar letters of reference denoting corresponding 30 parts w^here such parts appear at each of the Figures respectively. The palate a is to be made with a series of openings in it, and is placed against the roof of the mouth, by which means the air is withdrawn and the sucking protuberances formed upon the pituitary membrane, which correspond with the openings in the plate, and passing through the holes naturally turn 35 over the edges of the openings and form buttons or rivets, which alone hold the plate in its proper position. These buttons are so far moveable that they will yield slightly when eating, or when any other pressure takes place. The common or ordinary tooth plate, Fig. 5, may be secured on one side by