An electrical lighting apparatus for medical and surgical purposes / [R. Bläensdorf Nachfolger].

  • Nachfolger, R. Bläensdorf.
Date:
1889
Catalogue details

Licence: Public Domain Mark

Credit: An electrical lighting apparatus for medical and surgical purposes / [R. Bläensdorf Nachfolger]. Source: Wellcome Collection.

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    Date of Application, 28th July, 1888 Complete Specification Left, 17th Apr,, 1889 Complete Specification Accepted, 8th June, 1889 A.D. 1888, 2sth July. N° 10,956. PROVISIONAL SPECIFICATION. An Electrical Lighting Apparatus for Medical and Surgical Purposes. I, Castle Smith, of 54 Fleet Street in the City of London Gentleman do hereby declare the nature of this invention as communicated to me from abroad by R. Blaensdorf Nachfolger, Kaiserstrasse Frankfort on the Maine to be as follows :— This invention relates to an electrical lighting apparatus for medical and surgical 5 purposes by the aid of which operations and observations are more quickly and efficiently conducted than heretofore. The invention is constructed in the form of a pair of spectacles between the eye pieces of which an incandescent lamp is fitted. The spectacle frame is made of ivory, horn, or other insulating material in which LO the connecting wires leading from a suitable battery are laid and carried to the bridge on to which is affixed a socket open at the front. This socket is made ot some insulated material and carries the incandescent lamp within it. The connecting wires being led thereto from the bridge. In front ol the Lamp, a small lens may be fitted if required. 15 On to the eye pieces of the spectacle frame two light oval or other shaped tubes are fitted and made of black papier maclie or similar substance for the purpose ot protecting the eyes of the user from the electric light. The whole being so arranged as to cause the rays of light and the line of sight to converge towards the same point. Suitable glasses may be fitted in the spectacle frame to assist the vision if required. 20 Dated this 28th day of July 1888. CASTLE SMITH, Per F. W. Golby, “ Invention ” Office, 54, Fleet Street, London, E.C., Agent for the Applicant. | Price 8r?.]