쳇발 (베틀의) a stick placed across the already woven part of cloth on the loom to keep it in shape.
쳇바퀴: 쳇바퀴 a sieve-frame; the frame of a sieve. 개미 ~ 돌 듯하다 [조금도 진보가 없다] make no progress[headway] / [끝남이 없다] there is no end / cannot be brought to an end.
쳇다리: 쳇다리 a fork-shaped sieve rails; a frame supporting a sieve .