Abstract
As part of a critical review of all testing and measuring equipment in the Cotton Laboratory of the Chicopee Manufacturing Corp., two testing de vices, the Saco-Lowell Sliver Tester and the Belger Roving Tester, were rebuilt to run at increased speed, and the be havior of a Tensile Tester was investi gated. Increasing the speed of the machines required the reduction of in ertia, the substitution of springs for dead weights, and other alterations to reduce vibration. The investigation of the Tensile Tester shows that this ma chine has inherent characteristics which render it unsatisfactory for use on new materials of high elasticity or others with unusual properties.
The speeds of both the sliver tester and the roving tester have been in creased by a factor of approximately seven.
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