Tension indicating device
US4163126A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 9, 1978 |
| Grant date | Jul 31, 1979 |
| Priority date | — |
| Expiry date | Mar 9, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.