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| Number | Title | Issue Date |
| 7204137 | Thread breakage detection systems and methods A thread breakage detection apparatus comprises a light source operable to generate a light beam, an emitter in communication with the light source, the emitter operable to emit the light beam, and a receiver in communication with and disposed in facing opposition t... | 04/17/2007 |
| 4412562 | Apparatus for forming selvages in weaving machines A selvage apparatus including a photo-cell type device for detecting abnormal conditions of selvage threads is disclosed. In the detecting device comprising a microprocessor, the number of light interruptions by the selvage threads is counted and compared... | 11/01/1983 |
| 4300599 | Warp detection system Loss of tension in individual warp threads is detected in the lease zone by directing a flow of air against one side of the warp threads within the lease zone to displace any relatively untensioned thread toward the opposite side of said zone and detectin... | 11/17/1981 |
| 4177838 | Stop motion system for high speed looms and the like Automatic loom stopping apparatus for use with a loom for detecting warp yarn breakage or improper shedding and actuate the loom stop motion means of the loom, comprising light beam emitter and detector means positioned adjacent the warp yarn path toward ... | 12/11/1979 |
| 3989068 | Automatic control apparatus for weaving machine An automatic control apparatus for a weaving machine is disclosed, which includes a photoelectric detecting scheme provided at a reed of the machine such that a light beam thereof penetrates the shed of the warp sheet and detects improperly shedded warp. ... | 11/02/1976 |
