Specification of Henry Newson : trusses.

  • Newson, Henry.
Date:
1857
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Henry Newson : trusses. Source: Wellcome Collection.

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    Newsons Improvements in Trusses. tempering steel springs, either by passing a heated bar of iron gradually along it, or in any other convenient manner, the requisite effect being well known to be obtained upon production of what is commonly called the “ blue tint.” The size and shape of the pads or disks to be attached to the ends of a spring will depend not only upon the particular parts of the body to which they 5 are to be applied, but also to the degree of pressure which is intended to be applied to the part of the body to be supported or protected; in a great majority of cases round pads or disks of about two inches in diameter, and slightly convex on their sides, which are to be applied to the body, will be found to be proper and convenient. The pads or disks may, however, be made 10 of an oval, or any other shape necessary or proper for the purpose of causing them to fit most conveniently to the parts of the body to which they are to be applied, and they may also be made with any degree of convexity which may be requisite for the same purpose; and if the particular part of the body to be supported or protected should happen to require a pad or disk to be 15 made so as to present a concave surface to the part to be supported or pro¬ tected (as in the case of some irreducible hernias) I alter the construction of the pad accordingly. In many cases I deem it most advisable to give the pads or disks a slight covering or cushion upon their sides which are to be presented to the body, 20 but in some cases it may be found desirable, for the sake of economy, or other¬ wise, to apply the pad or disk to the body without covering, and in other cases to attach to them soft or stuffed cushions of any description usually applied to the pads of trusses. If a pad or disk is intended to have a cushion applied or attached to the face of it, it may be necessary to make the face of the pad or 25 disk flat, or even concave, so as the better to fix or secure the cushion or stuffing to be placed upon it. The pads or disks to be attached to a spring are to be rivetted to the ends of it, or attached to the ends by means of screws, or in any other convenient manner, and in some cases it may be found more convenient to cause the ends of the spring to be bent and threaded, as shewn in Figure 10 30 of the Drawings hereunto annexed, so as to form screws to be screwed into nuts or bosses affixed to the backs of the pads or disks, as shewn in section in Figure 11, and this may be found convenient for enabling a person fitting a truss upon the body to attach to a spring of the requisite length and strength such pads or disks as may be best adapted to suit the circumstances of the 35 particular case. The whole truss made in the way which I have described may be covered with leather or any other covering which may be preferred, in the usual way adopted by truss makers, or the truss (exclusive of the cushion, if any,) may be