Abstract: The present invention is a system for managing heat stress by both controlling the core body temperature of an individual and facilitating hydration. The system provides cooling to an individual through means of a liquid coolant such as water which is circulated by a pump through a heat exchanger to a heat exchange garment. The liquid coolant passes through the heat exchange garment where it extracts heat, increasing in temperature as a result of heat removed from the individual wearing the garment. The liquid coolant is then returned to the heat exchanger where it is again cooled. The cycle is then repeated. A drinking outlet provides a means for hydrating the wearer.

Abstract: There is described an improved mechanism for adjusting the height of a work surface, comprising vertically movable shafts for supporting a work surface thereon for up and down movement, an actuator operable for selectively raising or lowering the shafts, cables interconnecting the shafts and the actuator, the cables being displaceable to raise and lower the shafts in response to operation of the actuator and a compression resistant sleeve surrounding each of the cables between the shafts and the actuator.