Torque measuring apparatus
US4006629A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1975 |
| Grant date | Feb 8, 1977 |
| Priority date | — |
| Expiry date | Jul 17, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/1425
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A torque measuring apparatus having a head adapted to rotate about an axis of rotation and a lever arm extending from the head and perpendicular to the axis of rotation designed to react to normal forces applied at a distance from the head. On the lever arm are a plurality of strain transducers spaced apart a certain distance as determined in accordance with predetermined mechanical properties of the lever arm. The transducers are joined electrically to form a bridge circuit, the output of which is directly proportional to the torque on the workpiece. This output is then transmitted to a display for a visual presentation of the torque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.