An improved electric belt for medical purposes / [Ebenezer Smellie].

  • Smellie, Ebenezer.
Date:
1902
Catalogue details

Licence: Public Domain Mark

Credit: An improved electric belt for medical purposes / [Ebenezer Smellie]. Source: Wellcome Collection.

    1/4
    S° 18,808 A.D. 190^ Dak of Application, 27th Aug., 7902—Accepted, 23rd Oct., 7902 COMPLETE SPECIFICATION. “An Improved Electric Belt for Medical Purposes ;; I, Ebenezer Smellie, of Den Villg, Malian, Larkhall, Lanarkshire, Builder, do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement: — 5 'This invention relates to an electric belt for medical purposes. The new belt possesses certain novel features in construction and arrangement over belts of a similar character at present in use and these novel features are clearly pointed out in the claims at the end of this specification. In order that my said invention may be properly understood I have hereunto JO appended an explanatory sheet of drawings, whereon, Fig 1 is a view of the complete belt with terminal contact discs attached. Fig 2 is a full sized plan and Fig 3 a similar section of one of the contact discs. Fig 4 is a vertical section of one of the battery cells. j/j Fig 5 is a view of the battery. The belt a may be made of leather lined with flannel or some similar material that will retain the warmth of the body and its ends are provided with any usual form of fastening arrangement such as straps h and buckles c. A pocket d is made in the belt for the reception of a small galvanic battery e (Fig 5) 2() which preferably consists of two zinc cells f with copper electrodes q and a packing of cotton wool which may be saturated with a suitable electrolyte such as pure distilled water or sal ammoniac solution. The copper electrodes may be made of strands of copper wire. Any other suitable form of battery may however be used. 25 The connecting wire h is, of course, led from the copper electrode of the one cell to the zinc of the other as shown at Fig- 5. The main feature of my invention is the construction of the “ contact discs ”, as I may term them. In making the contact disc q, Figs 2 and 3, for instance, a large disc 7c of zinc is punched from a zinc sheet. The disc is made with a o() central hole and a bevelled or dished rim. A small cup headed copper stud or disc l is also punched from copper sheeting and a copper rivet m is soldered to this disc l. The tail of the copper rivet is pushed through the hole in the zinc disc and then soldered in position; thereafter the tail of the rivet is pushed through a hole in the cloth n of the belt. The wire o from the battery is bared 35 at its end for a short distance and pushed through a hole in the centre of a rubber washer i which latter, along with the wire, is thereafter slipped on to the end of the tail of the rivet. The wire is now twisted round the tail of the rivet and one or two small copper washers p are subsequently fitted on the end of the rivet which is finally rivetted up gently by means of a hammer so as to 4Q secure the discs I, 7c, rubber washer, wiring, and copper washers p in place and force them all tightly together. The rubber washer tends to keep the connec¬ tions clean. Every alternate* contact disc is made in the manner above described but the intermediate contact discs are made somewhat differently, that is to say, instead 45 of each one having a large zinc disc 7c and copper stud l and rivet m they have each a large copper disc with corresponding zinc stud and zinc rivet. Thus in [Price 8c?.]