Specification of William Clark : ear stoppers.

  • Clark, William.
Date:
1867
Catalogue details

Licence: Public Domain Mark

Credit: Specification of William Clark : ear stoppers. Source: Wellcome Collection.

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    f A.D. 1867, 3rd April. N° 995. Ear Stoppers. (This Invention received Provisional Protection only.) PROVISIONAL SPECIFICATION left by William Clark at the Office of the Commissioners of Patents, with his Petition, on the 3rd April 1867.—A communication from abroad by Joseph Porter Michaels, of 29, Boulevart St. Martin, Paris. 5 I, William Clark, of 53, Chancery Lane, in the County of Middlesex, Engineer and Patent Agent, do hereby declare the nature of the said Invention for “ Improvements in Stoppers or Means for Stopping the Ears,” to be as follows:— This Invention relates to a means of hermetically closing the ears at same 10 time without preventing sound entering easily. These ear stoppers are suitable for use in swimming or bathing where the water is liable to enter the ears and cause disagreeable sensations and even deafness. These stoppers are also applicable for preventing air from entering the ears which is often prejudicial or unpleasant. The stopper is made of india-rubber, gutta percha, or other 15 supple elastic and impervious material, and consists of a closed tube rounded at the end which is inserted in the aural conduit and there held in position by reason of its elasticity. The tube I usually form with a small bell mouth which protects the parts adjacent to the tube, and being moulded to the form of the ear may be attached thereto by reason of its elasticity. In some cases I simply. 20 widen the end of the tube instead of making it bell mouthed. These ear stoppers are made in pairs and of all sizes to suit different ears; the india-