Tension tester for tennis racket strings

Details Tension tester for tennis racket strings Tension tester for tennis racket strings

1976-12-23

1977-11-01

Gill, James J.

Measuring and testing

Volumetric content measuring

G01L 506

Patent

active

040559998

ABSTRACT:
A device for determining the string tension in the netting of a racket has a base and clamping structure adapted to be intercoupled on opposite faces of the netting, and a compressible, spring-loaded plunger slidably mounted on the base for shifting movement against one face of the netting. Movement of the plunger against the face of the netting deflects the latter and also compresses the plunger such that an equilibrium position is reached wherein the compression force on the plunger spring is equal to the resistance force presented by tension in the strings of the racket netting. A tension gauge is provided for measuring the deflection of the netting at the equilibrium point and translating the deflection measurement into a tension reading corresponding substantially to the actual tension in the racket strings.

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