Abstract: An apparatus and process for controlling a high pressure fluid leak, such as a combustible gas, by determining the leak rate of the fluid from the leak source utilizing sound sensors wherein the step of determining the leak rate includes the step of comparing the signals from the sound sensors with a known standard curve, and activating a controller for controlling the fluid to prevent the fluid from spreading in the atmosphere.

Abstract: A cutting edge member for fitting onto an excavation apparatus wherein the cutting edge member is of softer material than iron for digging around pipelines.

Abstract: Disclosed is an anode-cathode assembly useful in brine electrolysis cells. Principally featured is an anode-cathode assembly wherein the anode is C- or U-shaped, and is fitted around the cathodes instead of being fitted between two cathodes.

Abstract: An electrolytic cell system wherein an alkali metal chloride is electrolized to produce chlorine and alkali metal hydroxide in a diaphragm-type cell by feeding an aqueous slurry of an alkali metal chloride particulate to an anode compartment of the cell through at least one primary conduit and then a secondary conduit at a linear velocity of at least 6.5 feet per second. The secondary conduit has an interior cross-sectional area up to about 0.2 square inch and less than that of the primary conduit. By means of the described feed system, substantially uniform quantities of the aqueous slurry can be substantially simultaneously and continuously fed to a plurality of anode compartments.

Abstract: An electrolytic cell expandable anode assembly particularly useful as anodes in commercial chlor-alkali productions cells, said assembly having two parallel, foraminous working faces and a simple spreading means. This spreading means plays no role in the conduction of electricity from any external power source to the working faces. Rather, said electrical conduction role is performed by an intermediate, stationary conducting means connecting the working faces at one of these ends which also physically holds the anodes in place within the cell by rigidly connecting them to one end of each of the working faces and rigidly connected then to the anode base of said anode assembly.

Abstract: In an Oxo process wherein an olefin, CO.sub.2 and H.sub.2 are reacted in the presence of a cobalt salt as catalyst, higher activity and longer useful life of the catalyst are achieved by complexing the catalyst with triphenyl phosphine.