4 12 whose body portions 65a are largely positioned forwardly of the beat up point of the reed 30 and overlie and rest upon that portion of the fabric backing 20 beneath which the nose board 60 is positioned preferably there is one of the warpwise pile wires 65 provided for each of the dents or spaces between the splits 30a fig6 and 10 12 of reed 30 and each of the pile wires 65 has an upstanding rear portion shoulder or projection 65b thereon which extends rearwardly into the respective dent of reed 30 each time the reed occupies a full beat up position each pile wire 65 also has a cutting blade or knife 65c thereon spaced forwardly of the upwardly projecting rear portion 65b of the respective pile wire 65 and the cutting edge of each knife 65c is inclined upwardly and forwardly at an angle from the upper surface of the body portion 65a of the respective pile wire 65 so as to sever or cut each successive pile loop as it is advanced along the body portion 65a of the respective pile wire following the formation of the pile loops over the corresponding pile wire as the successive pile loops are formed over the pile wires 65 in a manner to be later described they are pulled downwardly against the pile wires so as to obtain the desired height of pile loops heretofore difficulties have been experienced in the formation of pile loops and in taking up the pile fabric on a loom equipped with pile wires of the general type described above owing to the friction between the pile wires and the loop pile fabric it was found that the.