Weft yarn detector

In a loom assembly of the type including a slay, a series of weft yarn guide members mounted on said slay and defining a weft yarn passage into which is to be inserted a weft yarn, and a detector for detecting a weft yarn inserted into said passage, the improvement wherein said detector comprises:

• a weft yarn detecting body mounted directly on said slay without connection to said guide members, said body including two supporting portions disposed opposite to each other on opposite sides of said passage;
• weft yarn detecting elements mounted on said two supporting portions;
• and
• a flexible, thin printed wiring plate mounted on said body and including means electrically connected to said detecting elements for electrically connecting said detecting elements to an external control system.