Specification of Frederick Charles Rein : apparatus for excluding sound from the ear.

  • Rein, Frederick Charles.
Date:
1865
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Frederick Charles Rein : apparatus for excluding sound from the ear. Source: Wellcome Collection.

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    Apparatus for Excluding Sound from the Ear. LETTERS PATENT to Frederick Charles Rein, of the Strand, in the County of Middlesex, Acoustical Instrument Maker, for the Invention of “ An Improved Apparatus by the use op which any Sound will become Inaudible to the Wearer.” Sealed the 12th May 1865* and dated the 1st December 1864. PROVISIONAL SPECIFICATION left by the said Frederick Charles Rein, at the Office of the Commissioners of Patents, with his Petition, on the 1st December 1864. I, Frederick Charles Rein, of the Strand, in the County of Middlesex, 5 Acoustical Instrument Maker, do hereby declare the nature of the said Invention for “ An Improved Apparatus by the use op which any Sound will become Inaudible to the Wearer,” to be as follows :— The object of my Invention is entirely (or as nearly so as possible) to exclude sound from the drum or inside of the ear when a person desires so to do. I 10 make a form or plug to fit in (or nearly so) the inside of the ear, pressing also by a species of flange on the edge of the “ tragus ” thereof 4 the plug and flange may (or may not be) of one piece, and. may be made of any suitable material, I prefer caoutchouc, and may be made hollow and filled with air,, with cotton, or any soft material or substance. This form or plug is attached 15 to a plate which covers or partially covers the ear, from whence (being fitted to the plate) passes a sliding or solid spring which goes over or round the