Instron Limited

Paulo A Martin

David W Scanlon

Graham E Mead

Richard J Mahoney, Iii

Joel M Lieblein

Charles W Kellstedt

Ronald K Pulsifer

Limit switch control of crosshead materials testing machine movement in which a rod carrying slides selectively fixedly mounted thereon moves an actuator in a base, the actuator including camming surfaces and the base carrying limit switches actuatable by the camming surfaces, the actuator being slidable in the base between a neutral position to which it is biased and other positions to which the actuator is urged by the slides through the rod and slides pursuant to crosshead imposed forces.

Test apparatus limit switch assembly

A testing machine frame is provided with facing extruded column covers extending between a base and a top housing, the columns continuous cross-sections providing a partially enclosed vertical zone with a vertical opening, the opening being closed above and below a crosshead with accordion blinds, and T-slots for carrying crosshead limit stops and accessories.

Test frame

Stress:strain materials testing instrument

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Fall River, MA, United States of America

Paulo A Martin