Abstract: An improved process is disclosed for manufacturing chlorinated hydrocarbon by way of oxychlorination which yields reduced levels of environmental toxins such as, chlorobenzenes, polychlorinated biphenyls, polychlorinated dibenzodioxins and polychlorinated dibenzofurans. The process involves fixed bed or fluid bed catalyzed oxychlorination of a hydrocarbon reactant containing from 1 to 3 carbon atoms. The oxychlorination process consists of contacting the hydrocarbon reactant with oxygen or oxygenated gas and at least a portion of externally obtained hydrogen chloride in the presence of the oxychlorination catalyst in a heated reaction zone operated at from 150° C. to 600° C. and recovering chlorinated hydrocarbon from the effluents of the reaction zone.

Abstract: When feed stock is pulled from storage and a portion cut off for use by an operator, such as a builder of tires, the remaining portion of feed stock not used by the operator for the tire he is building ("unused stock"), interferes with the tire building process. Therefore, the tire builder must take the time, and make the additional effort to move the unused stock out of his way, usually by pulling the end of the unused stock into a retaining clip on the tray of the `servicer` which presents appropriate stocks to the tire builder. To avoid the inconvenience to the tire builder who must move the unused stock out of his way, and to save the time required for him to do so, a spring actuated cam roller is used to release the feed stock to the tire building machine when the operator pulls on the stock. After the operator cuts off a predetermined portion, a controlled reverse rotation of the cam is automatically spring actuated so as to retract the end of the unused stock and keep it out of the operator's way.

Abstract: A device is disclosed in which an edge-sensing means ("sensor") and a work-performing assembly are combined to perform work on a belt, strip or other work (hereafter "material"). It may be desired to slit the material, or simply position it with respect to a reference mark, but whichever the work-performing function to be discharged, it is required to do so with accuracy relative to one or both edges of the material. The sensor comprises a silicon solar cell ("cell") and a light source ("lamp") between which an edge of the material is sensed, and the deviation from a reference position measured. Depending upon the area of the cell exposed to light from the lamp due to the variable placement of an edge of the material as it traverses the cell, an electrical current is generated in the cell which current is directly proportional to the area of the cell upon which the light falls.