Abstract: A process for making metal joining paste, particularly suitable for precision soldering and brazing, which comprises preparing a paste vehicle by mixing together, at an elevated temperature, paste ingredients including solvent, flux and specialized additives, cooling said vehicle, and blending metal powder therewith. Blending preferably is subsequent to cooling, but can be simultaneous with cooling, though without significant exposure of the metal to the vehicle at elevated temperature. Cooling of the vehicle takes place under shock cooling conditions, such as to obtain a fine particle size suspension, and is to a final temperature inhibitive of significant reaction of metal powder with vehicle acidic constituents. The present invention provides increased viscosity control and suspension stability necessary for fine bore automatic dispensing of the paste.

Abstract: An electrical connector comprising a binding post intended to be fixed to a suitable supporting surface such as the wall of a loudspeaker enclosure, and including an outwardly extending portion provided with a camming surface disposed spirally relative to the axis of the binding post, and an operating cap of dielectric material, desirably having at least slight elastic deformability, and provided with a conductor-receiving bore extending therethrough and disposed eccentrically relative to the axis of the binding post and cap. The lower body portion of the cap has formed therein a downwardly open cavity for partially receiving the operative portions of the binding post, whereby twisting the cap through a limited angle, substantially less than 180.degree., serves to force the bared conductor within the cap into tight conductive relation with the cammed surface of the binding post.

Abstract: A residue-free brazing composition for brazing together metal parts is based on atomized copper particles dispersed in a fugitive binder to produce brazing paste.