Licence: Public Domain Mark
Credit: An improved electric therapeutic apparatus. Source: Wellcome Collection.
![Is 4778.—A.D. 1899. Wilkinson and TitherUy’s Improved Electric Therapeutic Apparatus. COMPLETE SPECIFICATION. An Improved Electric Therapeutic Apparatus. W., K.C. j.»of Kirby, m the w Liverpool, in tlie County of Lancaster Lowndes Iitiierley, of 6a, Sta y , j^atnre of this invention and in what ?^‘o“be7erformed, to be particularly described and aBcertamed 5 in and by the following statement: i + This invention relates to a therapeutic eTuTiLfedt^ot^ Lme ^ i .«y ^■ix^frs^rrs St r;; b b T'bLsh“7hrd77MgiA.he indicated by the same reference IS &Vy 7e7naT^^^^^^^^ S^g ir;iane to be applied; by way of example, we have illustrated an apparatus suitable o tL iefandloot or the arm. which enters the bath by the opening 2. For co,^. veni^efce of application, the casing is made in three parts, two side pieces 1, and a bottom Tb simple hook or other fastenings (of which two are shown at 3 in Fig IV), being provided to connect the parts. If tlie limb too stout o 25 permit the sides to be clasped together, the opening between them may be covered witli a clotb or tlie like to retain the heat. • n j • r • The apparatus l^eing generally used in the horizontal position, yielding cushions of, say, asbestos (which are not shown in the drawings) are provided on the bottom to support the limb, and 4 is an inspection dooi. i p i • i * The bath is fitted with a number of electrical radiators 5, each of whida ponsiste of a glass tube from which the air has been exhausted, and in which is fitted a filament of metal or carbon adapted to be heated to incandescence by me passage of a current of electricity, which enters and leaves the filament by suitable terminals. i j i ± i The radiators are shown arranged in groups of four, surrounded by outer glass tubes 6 as a protection against mechanical injury. Metallic caps i are flanged over the ends of the tubes 6 and are perforated to locate the radiators 5, the ends of the latter being further located by recesses in the slate blocks 8, into which they fit, the whole group being bound into a single structure by the long through 40 bolts 9. The groups are located within the bath by the slate blocks 8 which are secured to the sides of the casing. The main terminals .10 are connected to the electric supply leads and from them the current is distributed in parallel through all the radiators, each being fitted with its own switch 11 so that the radiators can be individually switched 45 on or off, thus giving very complete control of the amount of heat and light. The electrical connections, being exactly similar to the ordinary wiring of incan¬ descent lam])s in jiarallel, are onlv conventionally indicated. In some cases the radiators and their protecting tubes may be so shaped as](https://iiif.wellcomecollection.org/image/b30759390_0002.jp2/full/800%2C/0/default.jpg)
