Abstract An electrical contact member is disclosed which comprises a horizontally disposed electrically conductive tube, a pair of apertures in the upper and lower portions of the side in registry with each other, and a pair of cylindrical rodlike electrically conductive members freely supported in said tube in contact with each other and both extending across the lower aperture. In operation, a pair of such members are supported in vertically spaced relationship and electrically isolated from each other, the apertures of each in substantial registry with the other. An electrically conductive filament is threaded through the apertures of each tube and between the rodlike bodies of each member and electric power is applied to each member to resistively heat the filament between the contact members.
In a reaction chamber for treating a continuous filament and including means therein to resistively heat such filament comprising: a pair of spaced electrical contact members extending in vertical alignment, and in a horizontal, parallel relationship, from an electrically insulated portion of the chamber wall and sealed with respect thereto; each member comprising an electrically conductive tubular element having a pair of vertically aligned slots disposed substantially at the longitudinal axis of said chamber and each slot lying along the plane generated by the vertical diameter of said tube; a pair of electrically conductive rods disposed in each tube and overlying the lower slot thereof; said rod elements being substantially small with respect to the inner tube diameter and urged, by gravity, toward a line contact with one another; means to pass a filament to be treated through each of the vertically aligned pairs of rods whereby each pair of rods comprises a floating contact with respect to such filaments; and means to pass an electric current through the contact members whereby to continuously heat such filament.
Claim 2
Dependent Claim
177 words
In a reaction chamber for treating a continuous filament and including means therein to resistively heat such filament comprising: a pair of spaced electrical contact members extending in vertical alignment, and in a horizontal, parallel relationship, from an electrically insulated portion of the chamber wall and sealed with respect thereto; each member comprising an electrically conductive tubular element having a pair of vertically aligned slots disposed substantially at the longitudinal axis of said chamber and each slot lying along the plane generated by the vertical diameter of said tube; a pair of electrically conductive rods disposed in each tube and overlying the lower slot thereof; said rod elements being substantially small with respect to the inner tube diameter and urged, by gravity, toward a line contact with one another; means to pass a filament to be treated through each of the vertically aligned pairs of rods whereby each pair of rods comprises a floating contact with respect to such filaments; and means to pass an electric current through the contact members whereby to continuously heat such filament.