Abstract:
A set of resistive strips each divided into two portions by a test point is connected to two terminals and constitutes a network to be tested for electrical continuity. The end terminals of two current sources mounted in series are connected to the network terminals, the junction point of the two sources is connected to one terminal of a detector and the other terminal is connected to a test point of one resistive strip. A flow of current through the detector indicates a discontinuity within one portion of the corresponding resistive strip.
Abstract:
A method and device for introducing inner tubes which are inflated to a predetermined pressure into tyres, and especially inner tubes of the so-called ''''puncture-proof'''' type. The inner tube is deformed so that the two opposite faces of its inner wall are substantially in contact and is then introduced into an ovalized guide tube terminating in a funnel having an obliquely oriented circular orifice. The orifice is introduced into the opening of the tyre and the inner tube is thrust into the tyre by the ram of a jack. The inner tube is prevented from escaping by virtue of a deflector which is placed in the opposite opening of the tyre.