The construction of slow match:
'Matches in artillery are a kind of rope impregnated with a certain composition to retain the fire and propagate it from one end to the other,'
'Match is made with tow of flax, or smooth hemp, beaten with mallets and switches, and carefully combed to separate the brittle, hard and coarser parts from the filamentous substance. Match is not, however, the worse for small particles of hemp with may remain in it. Flax tow is preferable.'
'When only two twists have been taken from the hemp stock, the third twist, well cleaned of hards, makes good matches.'
'Such portion of the flax tow which falls under the hatchel, and when the flax is combed, is purchased from the hatchellers, by the rope-makers, who arrange it in hanks, to be spun without any further preparation, in the same manner as they work the ropes.'
'The tow is spun with the same spinning wheel as rope-yarn, and the threads somewhat twisted before making the matches.'
'Matches are made with three threads: this sort is preferable to those which are composed of a greater number.'
'Matches should be 1.42 or 1.78 inches circumference; when larger they consume too great a quantity of materials; when smaller they are too easily extinguished.'
'Matches which are covered with a third thread are defective, let them be ever so well purified; because this covering conceals the defects, and quickens unequally the consumption of the match.'
'The three threads which are to be laid…together, should be considered as so many strands of a rope; therefore their twisting ought to be sufficient to slack lay them as a rope. They are set in lengths of 100 or 108 feet each, which, after being assembled and laid together, should be reduced of one third. The three threads are then fastened to a wheel and their effort to untwist, added to the twisting occasioned by the wheel, complete their laying. The rope-maker holds the three strands with the hand, and observes that they are laid gradually and regularly upon each other…'
From Louis de Tousard's American Artillerists Companion, Volume I, 366-372. This manual is not in copyright. Originally published in 1809, it was reprinted by Greenwood as part of The West Point Military Library.
The were at least two other methods of making slow match, one from Casimier Semienosvic's artillery treatise of 1676 and the other by French artillery General Lamartillerie which was accepted by General Gribeauval in 1782.