Abstract: A block with a rotating sheave mounted between a pair of side plates. Captured between the side plates may be a post about which a mounting loop may be mounted. The post is removable from the between the side plates to permit the loop to be attached or detached from the block.

Abstract: A vehicle light system is provided for use with a vehicle having a rear window with a periphery defined by a linear top edge, a linear bottom edge, and a pair of side edges formed therebetween. Provided is a plurality of spaced red light emitting diodes formed along the top edge of the rear window. The red light emitting diodes include a first set of diodes situated to the left of a central extent of the rear window and a second set of diodes situated to the right of the central extent thereof. In use, the red light emitting diodes are adapted to illuminate only during the actuation thereof. Finally, a brake relay control mechanism is adapted to actuate the red light emitting diodes in sequence upon the braking of the vehicle with a short delay therebetween, wherein the red light emitting diodes are actuated in sequence from the central extent of the top edge of the rear window to a side extent thereof.

Abstract: A system for removing ethylene from fruit storage chambers by catalytic combustion of ethylene in a closed circuit, wherein two heated catalytic reactors, each packed with catalyst and therebelow successive layers of material of weak heat conductivity, such as ceramics, and good heat conductivity, such as metal shavings, the reactors being connected therebetween by a collector to transpose gases from one reactor to the other, and a conduit provided with a heat exchanger connected between the collector and a storage chamber to conduct a small portion of the combusted gases to the storage chamber and cool the same before introduction thereto, and fan means for alternately conducting gas to and from the reactors and the storage chambers.

Abstract: There is provided a method for preservation of horticultural products in freshness by circulation of the atmosphere surrounding these products and removal of ethylene from it on the outside of the storage chambers, consisting in removing ethylene by catalytic combustion. Combustion of ethylene is carried out advantageously in the presence of platinum catalyst, obtained by impregnation of active aluminum oxide of specific surface area of about 200 m.sup.2 /g with a 0.05-0.5% solution of chloroplatinic acid followed by drying and heating in the stream of air at the temperature up to 550.degree. C. Ethylene combustion is carried out advantageously in the presence of platinum catalyst additionally activated by impregnation with oleic acid at the temperature of 60.degree.-80.degree. C., slow heating in the stream of nitrogen up to the temperature of 400.degree.-450.degree. C. for 2 hrs, followed by heating in the stream of air at the temperature 500.degree.-550.degree. C.