Figure 130.—Three-ply sennit braid, reinforcing thin ply:

a, the ply (3) is too thin and needs reinforcing; b, the new strand (4) is added from below to the ply (1) which is in the middle position. The short end (4') of the new strand rests on (1) while the long end (4) is directed back on the braid. c, The middle ply (1) with the short end (4') is pulled outwards to the right under the side ply (2). After (2) comes into the middle position, it is pulled outwards to the left under the side ply (3) which comes to the middle" position. d, The middle ply (3) is the one that needs reinforcing. The reinforcing element (4) is therefore doubled forward on (3) and everything is ready to continue the ordinary braiding. e, The braiding is continued, (3 and 4) being treated as one ply. The only part of the join seen is the doubled over new strand at (5) in the middle line.