The harness twines are furnished with large knots above the cumber board or journals, so that when one of the journals is raised the harness will be lifted with it. The journals may be raised by strong cords or wires from the machine, or by a tappet or shedding motion working either above or below them. If the machine is divided into two parts, four hooks in succession going to each colour of warp for each cloth, the cords from these four hooks making two rows of the journal, there will be no crossing of the harness in a straight or Norwich tie.

The order of working for the section Fig. 176 would be as follows:--For the first pick, which is white, raise the trapboard B and the first journal; for the second pick, which is red, raise the trapboard A and the third journal; for the third pick, raise the trapboard B and the second journal; for the fourth pick, raise the trapboard A and the fourth journal. This is the general order of lifting for a pattern; but a simple lined effect across the cloth as the section could be wrought with the journals without the machine, using them as heddle shafts. It could also be wrought by the machine without the journals. The use of the journals in conjunction with the machine is to pass the cloths through each other and make a pattern. For figure work, when a card is pressed in against the needles, all the warp for the figure on the design paper is raised by the trapboard B, which clears this portion of the red and black warps out of the way of the ground shed; and as the first pick of the ground is white, the white journal is raised to bind the white pick, leaving the olive warp down to bind it at the back. For the next shot the same card acts, and the trapboard A is raised, which lifts all the white and olive warp corresponding with the portion of the red and black that was left down at the last shot, so as to clear this portion out of the way of the face shed. As a red pick follows white, the red journal (No. 3) is raised to bind the red on the face, leaving the black warp down to bind it on the back. The other picks follow similarly. This shows the defective binding common to journal weaving, the white being bound with olive and the red with black at the under side of the cloth. To have pure binding, instead of all the white or red being raised by a journal as above, only as much of either should be raised as is required to bind its own colour of weft on the face of the cloth. The olive or black in respective cases should be raised for the remainder of the shed, leaving the white and red down to bind their own wefts where these colours come out on the back or under side of the cloth, thus giving pure colours on both sides of the cloth, and letting the mixed or impure binding be in the centre between the two cloths. This, however, is beyond the range of journals, and requires a harness.

Jacquard Weaving and Designing — Part 150