Spring devices – Elastic extension devices – Tension spring
Patent
1978-09-14
1980-03-11
Marbert, James B.
Spring devices
Elastic extension devices
Tension spring
F16F 146
Patent
active
041924932
ABSTRACT:
A shock-absorbing line device comprising a resilient member, preferably in the form of a cylinder, around which a line is spirally wrapped, the two ends of the line passing through respective eyelets at each end of the cylinder. Shock on the line is absorbed by straining the cylinder in torsion and bending, and also compressing or squeezing the cylinder.
REFERENCES:
patent: 3817507 (1974-06-01), Derman et al.
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