Abstract: A sludge sampler for industrial settling ponds has a handle and an insertion tube of known graduated length so that the sampler may be embedded in sludge at a known depth. At the bottom of the insertion tube is a frame which holds a sampler container jar and which terminates downwardly in a thin walled insertion cone. A lever at the top slides a rod and lifts a cap on the jar so that free flowing sludge may fill the jar. The jar is held in a cage pivoted on the frame. The center of the cover and one edge of the cage are connected by pivoted links. As the cover is lifted, the cage is tipped, tipping the jar to receive the sludge. As the lever is returned to its closed position, the jar-capturing cage is returned to its upright position, the cover is lowered, the jar is covered before the insertion tube is lifted and the cage, the frame , the cone and the jar are lifted out of the sludge.

Abstract: A patient trolley has a tiltable upper body support which is hydraulically lifted to a raised "heart" position and which is immediately lowered by a quick release valve so that a patient may be quickly treated in a horizontal position. Two cylinders are mounted on trunnions with distal ends of pistons interconnected to upper body supports so that the cylinders extend downward and toward a head end of the trolley from the trunnions. As the upper body support is lifted the cylinders rotate on the trunnions toward the head end of the trolley. In the down position of the upper body support the cylinders and trunnions may be lifted and held in an inactive position for clearance of hospital equipment. Levers and linear bearings enable the upper body support to be raised to substantially perpendicular position and to be quickly lowered.