Specification of John Macintosh : artificial gums : setting and stopping teeth.

  • MacIntosh, John.
Date:
1860
Catalogue details

Licence: Public Domain Mark

Credit: Specification of John Macintosh : artificial gums : setting and stopping teeth. Source: Wellcome Collection.

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    Artificial Gums; Setting and Stopping Teeth. {This Invention received Provisional Protection only,) PROVISIONAL SPECIFICATION left by John Macintosh at the Office of the Commissioners of Patents, with his Petition, on the 11th May 1860. I, John Macintosh, of North Bank, Regent’s Park, in the County of 5 Middlesex, do hereby declare the nature of the said Invention for “ Impeove- MENTs IN Artificial Gums and Setting and Stopping Teeth,” to be as follows;— This Invention relates, firstly, to the manufacture of artificial gums. Hitherto such gums have been made from metal, bone, india-rubber, or 10 gutta percha, but the two latter are absorbants, and the former leave an unpleasant taste, and are very objectionable to tender gums. To obviate these defects I apply a thick external coating of collodion, coloured to look like the natural gum, and by which means I am enabled to make the basis of the gum of glue, gellatine, wood, papier mache, wire, ribbon, or any other 15 suitable material. Secondly, to the fixing of artificial teeth. For this purpose I make as large a channel through the tooth as is consistent with strength, and making the top and bottom of the orifice wider than its centre, by which means I am enabled to force a larger quantity of collodium (the same colour as the tooth) 20 into the orifice, in order to fix it securely to the base. In some cases I use wire surrounded with collodium in attaching teeth to the base or gums ; I also undercut the tooth in order that a portion of the artificial gum may be forced