Leading to the entrance to second guide 13 is {HEAD ~ a carding comb} 27 which is formed of segments, {TAIL ~ some} of which are sawtooth and are arranged so that movement towards guide 13 is not much impeded but movement away from it is impeded 
Leading to the entrance to second guide 13 is { HEAD ~ a carding comb } 27 which is formed of segments , { TAIL ~ some } of which are sawtooth and are arranged so that movement towards guide 13 is not much impeded but movement away from it is impeded
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH