but in the drawing in front of the needle in the binding direction 23 while in fig8 it passes in front of but behind in the drawing the needle 32 in the direction of advance 23 as a result the needle can pierce across one leg of the thread loop fig4 shows the binding process fig4 is a top view of the top side so that the thread 29 on the top is shown by solid lines and on the bottom by broken lines two threads pass through every hole 67 67 39 67 39 39 running essentially parallel to the edge 12 on the bottom and climbing up the latter on the top they form the legs 70 71 of a thread loop which runs around the next following hole every two neighboring legs 70 71 of neighboring loops are bridged by a thread segment 72 emerging from the previous hole e g 67 and passing into the following hole e g 67 39 therefore a binding chain is formed containing two parallel running binding threads on both sides for each hole while in addition a relatively narrow chain is formed on the top from the thread segments 72 running essentially in the direction of the edge and the arch of the thread loop as a result a clear boundary is formed between the binding and the pile of the rug it should also be noted that for better illustration the binding in fig4 is.