Specification of Alexander Timon Cornelis Schoevers : trusses.

  • Schoevers, Alexander Timon Cornelis.
Date:
1873
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Alexander Timon Cornelis Schoevers : trusses. Source: Wellcome Collection.

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    Schoevers* Improvements in Trusses. My said Invention has reference wholly or mainly to that part of the truss called the pad or cushion, and consists in making the said pad or cushion in the following manner:—I make the hack of the pad of a series of radial spring arms connected to a central plate. The ends of the spring arms are expanded in breadth and slightly turned up. The 5 said springs and central plate are bent so as to give the whole a dome¬ like figure. The said springs and central plate may he made in one piece by cutting out from thin sheet steel. The outline of this spring hack of the pad may either he circular or elliptical. Within the said dome or spring back is a coiled spring of a conical figure, the apex of the cone 10 being connected to the centre of the plate forming the summit of the dome. The base of the conical spring carries a small metallic plate, which when the spring carrying it is uncompressed projects a short distance beyond the plane in which the ends of the spring arms are situated. The parts described are contained within a case or cover of 15 vulcanized india-rubber. The pad is connected to the spring band, which passes round the body of the wearer by a connection at its back, which allows the said pad a considerable range of motion about the end of the spring band. The face of the pad of the truss is of a slightly convex figure, the central part being made to project considerably by the 20 pressure of the conical spring. In applying my improved truss the central part of the face of the pad is applied to the centre of the rupture, the spring band being attached to the body of the wearer. The said spring band presses the pad against the body, and the result of the pressure is that the edge of 25 the pad is thereby pressed all round against the body, thus fixing the position of the pad by the hold which the edge of the pad acquires on the flesh of the part to which it is applied. By my improved truss the pressure is applied to the rupture at the precise point required, and the position of the pad is so secured that 30 there is no risk of its displacement by the motion of the wearer’s body. Having explained the nature of my Invention, I will proceed to describe, with reference to the accompanying Drawing, the manner in which the same is to be performed. Figure 1 represents in edge view a truss constructed according to my 35 Invention; Figure 2 represents a cross section of the pad or cushion of