There have been other developments of the Axminster principle of inserting tufts into the weave of the fabric, and variations from the method of the wide spool and tubes. Of these, the most successful has been based upon the idea of conveying the cut tufts by means of nippers or grippers into the fell of the cloth. This has been worked in combination with the wide spools, but more satisfactorily in combination with yarn carriers operated by a Jacquard with a differential lift mechanism for selecting the colours. In this loom, which has been brought to perfection for various qualities, pitches, and widths, in recent years, the pile yarns are wound on to creel bobbins, which are arranged, in much the same way as in Brussels and Wilton, in creel frames behind the loom. A frame of bobbins is a set of bobbins of the same shade, equal in number to the pitch of the loom. The number of frames is limited in practice to about 16, which, however, aided by “planting,” admit of design and colour effects comparable with those obtainable in Royal Axminster. The yarns are led between guide bars and through perforated plates into the carriers, which are vertical strips of steel or brass grooved back and front and drilled with a series of slots, through which the ends of the yarn pass, being held in position by small springs. The frames of yarn are threaded through the holes in the carriers in order, so that the yarns of the top frame pass through the highest hole in the carrier, the second frame through the second hole, and so on. Viewed from in front, the ends of each frame of yarn will be seen in horizontal lines one above the other in the front grooves of the carriers. These carriers are connected by cords or wires with a differential lift mechanism, which is actuated by the Jacquard, in such a way that the blank or perforation on the Jacquard card, corresponding with a certain colour, causes the carrier to be lifted until that colour is at the required height. It can readily be understood that cards perforated in different ways, and presented to the Jacquard at once, can cause the carriers all across the loom to be lifted varying heights in such a way as to show at the required level a horizontal row of thread ends, corresponding to a row across the width of the paper design. The sequence of these rows, of course, forms the pattern. It remains to cut off the tufts, to lay them in their place at the fell of the cloth, and weave them into the carpet.