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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    jReins Improved Apparatus for Excluding Sound from the Ear. of the nipple h, resting on the plug at i, i. A sliding or solid spring d attached to the outside of this plate passes (as at Figure 3) to another plate fitted in a similar manner. The two plates attached to each other by the spring being placed one on and entirely covering each ear, the nipple of the plug passing into the cavity thereof, and being firmly pressed on and kept in 5 • position by the yielding of the padding f f under the action of the spring d, which may as aforesaid pass under the jaw, over the head, or behind the neck of the wearer, will thus effectually deaden or exclude sound from passing to the drum of the ear; Figure 8 shews the interior of a hollowed plate/, similar to Figure 5, but not cushioned or padded, and Figure 9 a side view thereof; io in this apparatus I use a plug h, formed as usual of elastic or semi-elastic material, but mounted on a spiral spring l, and attached to and through the plate, the spring d passes from the plate shewn to its fellow, and the action is precisely the same as that described in relation to Figures 3 and 5 of the Drawing. In conclusion I would wish it to be distinctly understood that 15 the forms or plugs intended to fill the cavity of the ear are made of any suitable material, such as caoutchouc, and may be made hollow and filled with air, with cotton, or any soft material or substance, and that the spring I make to keep the plugs or plates in position is made in one piece, or in two or more pieces with slides and stops according to the nature of the apparatus to 20 be used. Having now described the nature of my Invention, and shewn means by which it may be carried into practical effect, I declare that I do not confine myself to the precise details herein given, or to the Diagrams or Figures shewn in the Sheet of Drawing, as modifications may be made to suit the 25 circumstances of particular cases without departing from my Invention, and I claim the exclusive use of forms or plugs made of elastic or semi-elastic material to be placed in the cavities of the ears, either alone or supported or assisted by a spring or plates, and spring for the purpose of rendering sound partially or wholly inaudible to the wearer. The whole essentially as herein- 30 before described and illustrated on the accompanying Sheet of Drawing. In witness whereof, I, the said Frederick Charles Rein have here¬ unto set my hand and seal, this Twenty-third day of May, in the year of our Lord One thousand eight hundred and sixty-five. FREDERICK CHARLES REIN, (l.s.) 35 LONDON: Printed by George Edward Eyre and William Spottiswoode, Printers to the Queen s most Excellent Majesty. 1865.