Abstract: Fumigation apparatus for placing solid fumigant in grain in ship holds, using a gas-permeable sleeve that is telescoped within an elongated tubular probe to be driven into the grain by a probe manipulator mechanism. The mechanism has three sets of drive rollers in a housing that is clamped around the lower end portion of the probe at the surface of the grain, the mechanism being releasably secured to a foldable base platform and driven by a power operator including a reversible electric motor and a reduction gear box. The sleeve is fabric, having a funnel-shaped open upper end and a closed lower end above a flap or tail for hanging out of the probe during installation. A flexible line is secured to the probe for repeated use in pulling sleeves into the probe for rapid placement of the sleeves after introduction of fumigant.

Abstract: A lower back support comprising two elongated cylindrical tubular members composed of polyurethane foam and held in side-by-side relation in proper position against a user's back by an elongated flexible strap support which permits a limited rolling action of the members against the back. The strap extends loosely through one member, and then loosely through the other from opposite ends, then forming a loop of adjustable size passing under the user's arms and around the back of the neck. VELCRO-type fabric strips on the strap form a connection of adjustable length.