1851 Great Exhibition: Official Catalogue: Class X.: Charles Jordan
285. JORDAN, CHARLES, 37 Chapman Street, Manchester — Inventor and Manufacturer.
Case of optical instruments for surgical and other purposes:-
No. 1 is an instrument for the inspection of the internal parts of the ear. The instrument as seen in the case, with silver truncated tube, is for the ear only. The silver tubes Nos. 2 and 3, the two long brass tubes, the sliding tube No. 4 (with magnifier), and the large brass tube, are used for other internal parts of the body.
No. 5 is an instrument for the Eustachian tube: an elastic tube is made to slide inside a silver one, and inside the elastic tube, is a steel spring wire for the purpose of giving curvature to the elastic tube, when introduced into the Eustachian tube.
Before introducing the instrument, the elastic tube must be partially withdrawn from the silver tube, and when the orifice of the Eustachian tube is felt, the elastic tube must be gently slid therein, when the spring wire will adapt itself to the required curve.
The wire is intended to convey a feeble galvanic current through the membrane tympani, through a little aperture at the end of the elastic tube; when the wire is withdrawn, fluid or vapour may be injected.
No. 6 is a lamp for illuminating the deep cavities of moulds in iron-founding, etc. Much inconvenience has often been felt by moulders in large foundries for want of a right method of directing light down the deep parts of moulds.
Ivory concentric shells, turned from the solid ball. The ball is five inches diameter; there are 14 shells, the inner ones being 1-20th inch thick and the space 1-16th inch between each shell. The tusk from which the ball was turned weighed 1601bs.
Specimens of all the useful metals and alloys, showing the surface and fracture.