Abstract: A table and attached bench support structure is foldable between an open erected position and a closed storable position. The table support mechanism comprises pivotally interconnected top brace, leg brace, bench leg, bench support member and table leg cooperating together to support both the table top and the bench seats. The table and bench mechanism may fold together for storage of the table, or the benches may be removed and the table separately folded for storage. The volume of the folded table is approximately one-eighth the volume of the fully erected table.

Abstract: A rail grinding machine especially designed for grinding railroad track rails at railroad track switches and road crossings. The grinding machine includes an articulated grinding module supporting undercarriage suspended from the grinding machine main frame. The undercarriage includes a unique suspension system that allows for lateral shifting and pivoting of the undercarriage independently of the grinding machine main frame. Grinding operations are controlled by sensing the supply pressure of the constant flow hydraulic fluid used to power the individual grinding modules, and positioning the grinding modules in grinding abutment with the rails as a function of the supply pressure.