Specification of Sylvan de Wilde : apparatus for probing shot wounds.

  • Wilde, Sylvan de.
Date:
1867
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Sylvan de Wilde : apparatus for probing shot wounds. Source: Wellcome Collection.

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    JDe Wildes Improvements in Apparatus for Probing Shot Wounds, formed, to be particularly described and ascertained in and by the following statement thereof, that is to say;— The said Invention relates to a peculiar construction of apparatus for discovering, indicating, and extracting bullets or pieces of metal or bodies 5 conductors of electricity hidden or embedded in wounds or in bodies com¬ paratively non-conductors. The apparatus consists of four parts, viz^, the battery, the alarum, the probe, and the forceps, with their accessories, all contained, it may be, in a box measuring 11 inches X inches X 2^ inches. 10 Figure 1 of the annexed Drawing shows in plan the opened box and method of stowage ; and Figure 2 is a vertical section through the closed box. The battery is a vulcanite cell having a lid which screws down so as to be water-tight, it is shewn at B, B, Figures 1 and 2. A piece of carbon c and of zinc z drop into slots at the interior ends of the cell, and there come into 15 contact with platinum springs, which are securely rivetted to conductors connecting them with strips of brass terminating in springs at d, where contact is made with the conductors of the alarum. This consists of brass strips ty f, mounted for the most part on an insulating bed of vulcanite, shewn in Figure 2 as a thick black line. One strip conducts to an electro-magnet M, 20 and thence another passes to the terminal T, a third proceeds simply direct from contact with the spring d to the terminal D. The electro-magnet is furnished with an armature to which is attached a hammer which strikes upon the bell b and is brought back by the spring o, A sheet of glass preserves this alarum part of the apparatus from dust and injury; S is a 25 box made of vulcanite having a screwed stopper at its corner, and having capacity for 50 charges of the battery cell B, equal to about 3 years continuous service. Two spare zincs and two spare carbons are shewn in a receptacle at dy d'y z\ z\ The probe consists of two tempered steel wires, a portion of whose length SO is passed through and firmly fixed in an ivory handle, and terminating in points in one direction, and in bell-shaped terminals of german silver in the other direction. These wires are insulated from each other by a strip of ivory or vulcanite lying between them. Figure 3 is a cross section through the ivory handle hy the wires i, i, and 35 insulating strip k between them. Figure 4 is a longitudinal section of the entire probe ; the handle has rings turned upon it to afford a firm hold ; between the points and the handle the wires have a slender vulcanite tube q passed over them, shewn in longitudinal section in Figure 4, and in cross section at Figure 5, which also shews the