Mechanical warp stop motion apparatus
US4462433A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1982 |
| Grant date | Jul 31, 1984 |
| Priority date | — |
| Expiry date | Sep 24, 2002 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D51/24
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A warp stop motion apparatus includes individual disengageable coupling and control elements which have fork-like ends that are capable of surrounding the lateral sides of drive pins extending outwardly from the opposite sides of the end portions of the respective inner movable serrated bars which slidingly extend into a housing part that is oscillated back and forth by an individual electrical motor. Oscillation of the housing part causes the inner serrated bars to oscillate in their longitudinal direction with respect to outer stationary serrated bars in which they are positioned. Separate adjustable spring loaded locking cams act to keep each coupling and control element in position; however, if an inner serrated bar becomes blocked with respect to its movement relative to the associated outer serrated bar due to drop wire falling across the teeth thereof, the associated coupling and control element will rotate, causing a contact spring to close an electrical circuit which activates a switch to stop the weaving machine and the oscillating movement of the housing part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.