1851 in (1854) 5 Aug. 118 [Occupations of the people] heald maker, heald knitter.
1862 V. 276 The manufacture of heald yarns..employs the chief attention of several manufacturers.
1864 VI. 189 Six heald-threads and six warp-threads are shown.
1874 A. Tolhausen & L. Tolhausen (new ed.) Heald-cord, cross string..embarbe.