Optical weft stop motion for looms with a U-shaped reed
AssigneePicanol N.V.
InventorsBorge R. Jensen, Willy M. D. Sierens
Life of this patent
Estimating the term…
Abstract
An optical weft stop motion for looms with a U-shaped reed includes an optical emitter, an optical receiver, and a unitary optical conductive plate attachable disposed between the reed lamellae. The plate is provided with a recess which is substantially congruent with and adjacent to the recesses in the U-shaped reed. The optical conductive plate is provided with internal light reflecting side walls which guide the light in the shape of a beam from the emitter through the complete or almost the complete recess of the plate and reflect it further to the receiver.
Claims14
An optical weft stop motion for a weaving loom including a reed having lamellae with U-shaped weft guide channels, comprising
- an optical emitter, an optical receiver and a unitary optically conductive plate optically connected together for transmitting a light signal from the emitter to the receiver through the plate, said emitter, receiver and plate secured to the reed for motion therewith with the plate disposed between a pair of reed lamellae;
- said plate including a recess substantially congruent with the weft guide channels of the reed lamellae and a bridging portion extending between the light emitter and light receiving sides of the plate, and light reflective sidewalls arranged to transmit light from the emitter across the recess in the plate and to the receiver through said plate.
Dependencies are inferred from the claim text.