A.)Searle’s Design. For determination of young’s modulus of the material of a wire or for comparison of the Elastic Moduli of two different substances. Consists of two rectangular, metal frames hinged parallel to each other, carrying chucks at the upper ends and hooks at the lower ends. A Spherometer reading to .01mm and a vertical scale 10-0-10mm are also provided. Included are a ceiling bracket with a pair of chucks for hanging the assembly, and a set of hard steel and brass wires in two different diameters. With instruction.
B.) Simplified next page, Simplified Design. As no. 1960A, but with two simple, square rods joined together by flexible phosphor bronze strips instead of metal frames. With instruction.
C.) Accessories for 1960A, B.
a.) Compensating weight
b.) Spare set of coils of wire, 2 of steel and 2 brass, of two different diameters.
Slotted weights. Iron. Set of 9 weights and one hanger, 500g each. Total 5kg.