Optical filling or weft bobbin feeler
AssigneeGebrueder Leopfe AG
InventorWerner Eichenberger
Life of this patent
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Abstract
An optoelectrical filling or weft bobbin feeler on a shuttle weaving machine, provided with a light source and a light sensor located in a casing which comprises at least one wall mounted in parallel relationship to the shuttle race. Light source and light sensor are arranged in the casing such that the optical axes define a plane forming a small acute angle with said one wall of the casing. Such a bobbin feeler functions to stop the loom in the instant when the thread winding on the bobbin runs out.
Claims5
In an optoelectrical bobbin feeler on a shuttle weaving loom containing a bobbin and a slay beam, said optoelectrical bobbin feeler comprising a casing having at least one flat wall capable of being mounted substantially parallel to the slay beam, optoelectrical transducing means comprising a light source, and a light sensor having optical axes which intersect in a point outside the casing, the improvement which comprises:
- the light source and light sensor being arranged such that the optical axes thereof define a scanning plane which forms an acute angle with said at least one flat wall of the casing for receiving light emitted by said light source and reflected by the bobbin.
Dependencies are inferred from the claim text.