Accessories and structural parts for high temperature metal testing machinery, namely, electric arc welding apparatus, laser welding machines, and mechanical grips, namely, machine tools in the nature of vices for use in the precision clamping of work pieces

High temperature metal testing machinery and apparatus with electronic control circuits and structural parts therefor; accessories and structural parts for high temperature metal testing machinery, namely, transducers that utilize ultrasonic oscillations to test for stress and fatigue in metal and metal structures, electrical transducers, load cells for converting a mechanical force into an electrical output signal, extensometers, pyrometers, quench simulation systems for metal testing, namely, quenching dilatometers for measuring quench deformation, and quench fluid reservoirs for simulating a quenching process, and scientific apparatus and instruments, namely, ultra-high vacuum chambers