130 YAENS AND TEXTILE FABEICS. detents are left in position, and the spring is restored to its normal tension by means of the hand wheel and screw. (c) Breaking Strain and Elasticity Tester. — The sample is evenly fastened between the cheeks (71 and C2 (Fig. 64), the exact distance between them —… … FIG. 64. Breaking strain and elasticity tester. by reference to the graduations on the guide rod E. The cloth is then strained by turning the handle F until it begins to tear, the tension being registered on the dial plate in units of weight (e.g., kilos.). The detents G prevent the pointer from…
Textile fabrics -- Testing · Yarn -- Testing
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