Weft confining comb for pneumatic looms

Claim 1

FOR USE IN A PNEUMATIC LOOM, IN COMBINATION, A GUIDING MEMBER FOR FORMING AN INNER OPENING AND HAVING TWO END PORTIONS WITH ENDS SPACED FROM EACH OTHER AND FORMING A PERMANENTLY OPEN NARROW GAP ADAPTED TO PERMIT PASSAGE OF A WEDT THREAD, SAID GAP HAVING AN INNER GAP PORTION EXTENDING TO SAID INNER OPENING AND AN OUTER GAP PORTION EXTENDING TO THE OUTSIDE OF SAID GUIDING MEMBER, SAID GAP PORTION EXTENDING AT AN ANGLE TO EACH OTHER, SAID INNER OPENING BEING ADAPTED TO GUIDE A JET OF AIR AND A WEFT CARRIED BY THE SAME, AND SAID GAP FORMING AN ANGULAR THROTTLING DUCT FOR CONFINING THE JET OF AIR AND A WEFT CARRIED THEREBY IN SAID OPENING BUT PERMITTING PASSAGE OF THE WEFT OUT OF SAID OPENING AFTER INSERTION OF THE WEFT INTO A WARP SHED; SLAY MEANS FOR MOVING SAID GUIDING MEMBER ALONG A PATH SUBSTANTIALLY PARALLEL TO SAID INNER GAP PORTION; AND SHED FORMING MEANS FOR MOVING SOME WARPS UP AND SOME WARPS DOWN SUBSTANTIALLY IN THE DIRECTION OF SAID OUTER GAP PORTION, THE MOVEMENTS OF SAID SLAY MEANS AND SHED FORMING MEANS BEING INTERRELATED AND TIMED SO THAT SAID GUIDING MEMBER FIRST MOVES ALONG SAID PATH WHILE A WEFT RESTING ON THE LOWER WARP SHED PASSES THROUGH SAID INNER GAP PORTION TO A POSITION LOCATED AT THE INTERSECTION OF SAID INNER AND OUTER GAP PORTIONS, WHEREUPON THE WEFT IS MOVED BY THE LOWER WARP SHED THROUGH AND OUT OF SAID OUTER GAP PORTION BY MOVEMENT OF SAID SHED FORMING MEANS.