Patent ID: 7478605

Claim:
Carpet making machinery including a support and movement means to support and move a backing material web through a pile forming station in first discrete steps in a first direction, at least one needle head supported on one side of said pile forming station for movement in a second direction transverse to said first direction between one lateral region and a second lateral region whereby a needle of the or each said needle head carrying yarn penetrates said backing material web at a plurality of locations and with cooperation of a loop forming head on the other side of said pile forming station forming a plurality of yarn loops on one face of the backing material web, said loop forming head including at least one looper element and a loop cutting mechanism, said loop cutting mechanism being selectably operable independently of operation of said looper element, and said loop cutting mechanism including a second hook member including a hook part movable to a position within at least one said yarn loop and a cutting blade cooperable with said hook part to cut at least one said yarn loop.