This accessory to the Electronic Universal Sand Strength Machine, Model No. 42104 is used to measure the hot tensile strength of shell sands. The unit has both mechanical and electrical connections to the Electronic Universal Sand Strength Machine, Model No. 42104. Using the control cabinet, the operator sets the desired testing time and temperature. The heated core box is manually filled with sand. At the proper dwell time, the strength machine automatically breaks the specimen. The hot tensile strength results are shown on the five-digit display of the strength machine. The Hot Shell Tensile Accessory includes the temperature and timer control cabinet, upper and lower heating block assembly, sand specimen tooling, tooling bridge, sand scoop/strike-off and magnetic tooling extraction device.