Abstract: An electric contact comprising a first conductive metal layer on a surface of a plastic layer and a second springiness metal layer on the opposite side of the plastic layer. The first and second metal layers consist of a plurality of metal stripes in parallel with each other in alignment with each other, respectively. Terminal elements of the metal stripes comprises on one sides or on both sides thereof wire positioning walls to facilitate soldering of wires to the terminal elements. By foldering portions of the terminal elements so as to expose the conductive metal layers, the soldering of the wires to the terminal elements are further facilitated. Even if distances between the opposite metal stripes attached to a connector housing are not uniform, the multi contacts are uniformly in contact with each other when connectors are connected.

Abstract: A material for forming contacts for use in connectors, switches and the like for electronic appliances. The material comprises a first metal layer having a conductivity, a second metal layer having a springiness and a plastic layer interposed between these metal layers. With this arrangement, the contacts according to the invention can be miniaturized to a far greater extent and far more inexpensively in comparison with prior art contacts made of copper alloys while maintaining the same current capacity and contact pressure. Moreover, the contacts according to the invention can eliminate disadvantages of prior art contacts made of two directly contacted metals, such as separation between them and elongation due to difference in coefficient of thermal expansion, deterioration of the contacts due to diffusion therebetween, and disintegration of the contacts due to electrochemical corrosion resulting from difference in electric potential between two metals.

Abstract: A method of electrolytic treating elongated materials such as hoop materials, rods and wires and an apparatus for carrying out the method comprising a treating unit consisting of unit halves comprising a through passage for feeding the material to be treated, insulating passages for flowing a treating liquid onto the surfaces of the material to be treated, electrodes for flowing electric current between the material and the electrodes and an insulating shield for shielding portions of the material not to be treated. When the material is fed continuously or intermittently through the treating unit while electric current flows between the electrodes and the material, the material is subjected to the electrolytic treatment or plating, of which plated portions are of desired size, shape and location on the material.

Abstract: A method and an apparatus for effecting in succession electrolytic processes and other processes such as water washing in connection therewith, comprising a series of treating units respectively for the electrolytic and other processes, the treating units being arranged in row in the order of the processes. Each treating unit consists of first and second unit halves one upon the other, the unit halves comprising a through passage for feeding the material and at least one insulating passage for flowing a treating liquid onto surfaces of the material, and the units for the electrolytic processes being further provided with electrodes for causing electric current to flow between the electrodes and the material.

Abstract: A method of electrolytic treating elongated materials such as hoop materials, rods and wires and an apparatus for carrying out the method comprising a treating unit consisting of unit halves comprising a through passage for feeding the material to be treated, insulating passages for flowing a treating liquid onto the surfaces of the material to be treated, electrodes for flowing electric current between the material and the electrodes and an insulating shield for shielding portions of the material not to be treated. When the material is fed continuously or intermittently through the treating unit while electric current flows between the electrodes and the material, the material is subjected to the electrolytic treatment or plating, of which plated portions are of desired size, shape and location on the material.