Fig. CXVIII.
[Fig. CVIII.], p. 73, shows the first and last rows, also the two centre rows of the journals threaded to the neck-cords (tail-cords) of the machine. Each cord is numbered to correspond. a, b, c, d, represent the cords for lifting the journals, on the same principle as in the straight-through tie-up. In power-looms this is done by a cam arrangement.
[Fig. CXIX.], p. 80, is designed to give a thorough understanding of the adjustment of harness-cords to heddles, as well as the leasing of the latter. The numbers selected for indicating the different cords correspond with those used in [Fig. CXVIII.]
Journal 1 = white, } ground.
Journal 2 = olive, }
Journal 3 = red, } figure.
Journal 4 = black, }
| Arrangement of threading; a to b, 51 times repeated, | = | 408 cords. | |
| The last row in the half width illustrated separately by c to d,which is the same as a to b, | = | 8 cords. | 416 |
| ---- | |||
| S forms the centre or point; e to f,first row of each journal, near centre, (repeat of centre-cord for ground or figure omitted; see o on journals 2 and 4), | = | 6 cords. | |
| g to h, 50 times repeated, | = | 400 cords. | |
| i to k, last row, same as g to h, | = | 8 cords. | 414 |
| ---- | |||
| Total number of cords used, | 830 | ||
The following is the method employed in drawing for indicating the different colors of warp-threads:
Blank for white, } ground.
Light shaded for olive, }
Heavy shaded for red, } figure.
Black for black, }