Tension indicating device

Details Tension indicating device Tension indicating device

1978-03-09

1979-07-31

Scott, James R.

Electricity: circuit makers and breakers

Special application

Running length, web or strand actuated

B65H 2514

Patent

active

041631269

ABSTRACT:
The device includes a rigid frame supporting tandem pulleys for engaging spaced points on a rope or cable in which a predetermined tension when reached is to be indicated. The center of the rope between the pulleys is laterally displaced from a tangent line between the spaced points on the pulleys and secured to a bending beam so that when tension is applied to the rope the secured center portion will tend to move into alignment with the engagement points on the pulley thereby deflecting the beam. A microswitch secured to the frame is arranged to be engaged when the beam has been deflected a predetermined amount thereby indicating when a predetermined tension has been reached.

REFERENCES:
patent: 2355634 (1944-08-01), Doughty, Jr.
patent: 2357675 (1944-09-01), McCord
patent: 2372162 (1945-03-01), Ryan
patent: 2487187 (1949-11-01), Seifried et al.
patent: 2680842 (1954-06-01), Opphile
patent: 3227833 (1966-01-01), Davies et al.
patent: 3278925 (1966-10-01), Saunders et al.
patent: 3587959 (1971-06-01), Glover
patent: 3599368 (1971-08-01), Riley

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