Abstract: A peristaltic pump composed of a tubular cylindrical housing closed at opposite ends, a flexible tube wound in single and complete helix circumferentially around the inner wall of said housing with its opposite end portions passing outwardly through two substantially coplanar and tangentially disposed ports in the housing, a rotatable assembly axially disposed within the housing and carrying at least one radially displaceable roller, linearly slidable setting bar means within said rotatable assembly operable to extend said roller into compressive contact with the helix of tubing, and power means for rotating said assembly to cause said roller to traverse said helix to force fluid content of said tubing along same.

Abstract: Support arrangement for supporting side frames of a vehicle bounding a loading area thereof. Two L-shaped supports each have a first leg adapted to be upstandingly disposed outside and adjacent one of the side frames. A second leg is for horizontal mounting adjacent the under side of the loading area. A single double acting pressure medium cylinder mutually connects the two L-shaped supports to enable a horizontal displacement of the latter to be brought about towards and away from each other. Two additional double acting pressure medium cylinders each have a piston rod adapted to be pivotably mounted at its outer end adjacent the under side of the loading area. A guide arrangement provides a pivotable mounting for an end of the cylinder remote from the outer end of its piston rod and is connected to and spaced below the horizontal second leg of each of the L-shaped supports.