The fuse is gradually filled with this composition, each proportion being well pressed in, without violence. Iron ramrods, fitted to the bore of the fuse are used for this purpose. Every time the materials are poured in, the ramrod is inserted, and by means of a small mallet, with which it is struck 14 or 15 times, the composition is pressed into a hard consistency.
When fuses have been well loaded, and the materials have previously been properly mixed, they will naturally burn with an equal steady fire, preserving ingeneral an even length of flame, without spitting or irregularly shaking.
In order to preserve fuses for a length of time, the composition, when thoroughly prepared, must be covered with a mastick or cement made of ²⁄₃ds bees-wax and ¹⁄₃d rosin, well mixed together. Bomb fuses prepared in this manner, will burn either in water, or in earth, nearly 70 seconds, without being extinguished.
The usual method of priming fuses, is to grate about one third of a French inch of composition. Two small matches about 5 or 6 inches long, with the ends bent inwards, are then well fixed with pounded composition to the eye of the fuse, by which last operation it is completely filled and closed. This part is finally covered over with cartridge paper that is tied, and remains so till there is occasion to use it. Before the fuse is driven into the bomb, the thin or small end must be cut off, in order that the fire may be easily communicated to the mass of gun-powder, which is lodged in the bomb.
Fuseesà bombes,à feu-mort, bomb fuses with dead light. There is a species of bomb-fuse, which is distinguished by the termfeu mort, or dead-light. The difference between these fuses and the ordinary ones consists in this, that the eye instead of being pierced and hollow, is full and of a half spherical shape. In both cases, however, the composition is introduced through the small end.
The composition for fuses,à feu-mort, consists of 16 parts of pounded gunpowder and 9¹⁄₂ parts of ashes. The ashes must be baked over again, and run through a silk sieve. Potter’s earth or clay will produce the same effect as ashes.
In proceeding to charge a bomb-fuse that is made of ordinary wood, the eye, or aperture is first closed with pipe-clay, which is well beaten and pressed against the fuse in a small platter; the thin end of the fuse being held upwards. Three lines (or ³⁄₁₂ths of a French inch) of this earth will be sufficient to stop the communication of any fire. A tube, or trundle, filled with pounded gunpowder for the purpose of setting fire to the composition calledfeu mort, is thrust into the fuse, by which it is finally charged. If this charge of pounded gunpowder were to be omitted, the fuse might not be susceptible of ignition; but the quantity never ought to exceed 3 lines, as the fuse would split by the explosion.
When the grains of gunpowder have been well pounded, a trundle, or tube filled with the aforementioned composition must be applied, and it is finally loaded like the rest.
It must be recollected, that two inches of this composition will last as long as one of the quality with which common fuses are charged. Before the fuse is driven into the bomb, it must be pierced through with a gimblet of one line diameter, taking care, that the hole is made precisely through the charge of pounded gunpowder. One end of a priming match must be forced in, and three others be tied to it, which three are to fall upon the bomb when it lies in the mortar.
The particular object to be obtained from this sort of fuse, is to prevent the least trace of fire or light being visible in its projection; so that the enemy may remain ignorant of the range, or direction of the bomb, and not be able, of course, to get out of the way when it falls, or to avoid the effects of its explosion.
These fuses were made use of at the siege of Ham in 1761. The experiments which were made in 1792, with this composition, by an artificer belonging to the ordnance-board at Douay, have proved, that it answers every purpose for which it is invented.
The author of theManual de l’Artilleur, from whose treatise these observations are taken, concludes this article by stating that the advantages to be derived from this invention are not so great as they at first appear.
He remarks that with respect to the real utility of the fuseà feu mort, if it be considered as tending martially to the defence of any besieged place, the argument cannot be very forcible, when we reflect, that to gain time constitutes one of the principal means of defence, and that the only way to obtain it is by regarding the besiegers’ operations. These ends are gained by various expedients. Among others, the common lighted fuse conduces not a little; since during the whole direction of the bomb against the works of the assailants, the attention of the workmen is diverted from their immediate labour, and as long as it continues in its range, much uneasiness is created, because its ultimate explosion and concomitant destruction are unknown.
Add to this, that independent of the confusion which is occasioned among the assailants by repeated projectiles, the bombadier by means of the lighted fuses, is enabled to correct his aim during the darkest night. The same principles must certainly hold good in attacks; and from a conviction of their solid utility in both instances, the common fuses have been hitherto adopted, although the kind in question has been known for several years.
Fuseesà grenades,Fr.fuses for grenades. These fuses are made of the same quality of wood as those adopted for bombs. Their length is 2 inches 6 lines; their diameter at the head is 10 lines; 7 lines in diameter 1 inch from the head, and 2 lines in diameter to the sight or aperture. The composition of these fuses consists of 5 parts of priming gunpowder, 3 parts of sulphur, and 2 of saltpetre: or 3 parts of priming powder, 2 of saltpetre, and one of sulphur.
These fuses must be loaded with thesame care and precision as are required in bomb-charges; that is, the thick end of the fuse must be placed downwards, so that it stands upright; the composition must then be introduced by means of a trundle, which the French calllanterne, made for that specific purpose; the composition must, after that, be well pressed in with an iron ramrod fitted to the bore of the fuse, and gradually forced in by gentle taps with a mallet. Great precaution must be observed during this operation, as too much violence might split the fuse. When the fuse has been half filled, a shorter ramrod must be used, with which the charge is completed. In making bomb-fuses great care must be taken to strike equal blows with the mallet until you get to the three last, when the strength of each blow must be increased.
Fuseesd’obus,Fr.howitzer-fuses. These are generally made of the same composition and wood, as serve for bombs, and are loaded in a similar manner. They have the same dimensions when applied to calibres of 8 or 6 inches diameter; that is, they contain 5 inches 4 lines in length; 15 lines diameter at the small end, 3 lines diameter at the thick end; 13 lines diameter 1 inch from the head; the eye, or vent is 10 lines. These fuses do not exceed the vent of an howitzer, so much as bomb fuses do the vent of bombs. They are in fact, shorter.
Fuseesvolantes,Fr.sky-rockets. These fuses are made of various dimensions, and serve for signals in times of war. They are sometimes 2 inches and more in diameter. The cartridges with which they are loaded, contain in thickness the sixteenth part, or more of the diameter.
The composition which is used for fuses of this description, consists of 16 parts of saltpetre, 7¹⁄₂ of charcoal, and 4 of sulphur; or of 16 parts of saltpetre, 6 of charcoal, 4 of sulphur, and 2 of priming gunpowder. The materials must be carefully pounded and well mixed together. Hollow rods of various lengths are used to charge these fuses. They must have cavity enough to admit the stick.
Fuses are tied to long sticks, or rods made of very light wood, such as hazel tree which must have been cut some time, and be perfectly dry. They must likewise be straight, and contain from 7 to 8 feet in length; the thick end of the rod, in which 2 notches are made to fix it to the fuse, must be 7 or 8 lines in diameter, and at the small end 3 to 4 lines diameter. When the rod is rather heavy, it takes a more upright direction than when it is light; but it does not acquire so many degrees of elevation.
It must be generally remarked, that as soon as a fuse is fixed to a grenade, which is not intended for immediate use, you must melt some pitch and immerse the head of the fuse, instantly dipping it into cold water, by which precaution the composition will remain unaltered; unless the wood be rotten.
FUSEE,FUSIL, orFUZEE, a light musquet.
FUSILSà l’épée,Fr.fusils with long bayonets, shaped like a cut and thrust sword. These weapons have been proposed by the writer ofMelanges Militaires, as being extremely useful in the rear rank of a battalion, or in detached bodies that are stationed for the defence of baggage, &c.
Something similar to this invention has been adopted by the dismounted light horse volunteers in London, who have in addition temporary sword hilts made to fit the sockets of their bayonets.
Fusils,mousquets,Fr.a sort of fusil which was invented by Marshal Vauban, and which was so contrived, that in case the flint did not strike fire, the powder might be inflamed by means of a small match which was fixed to the breech.
Fusilsà chevalets, a species of fusils upon rests, which is recommended by Marshal Vauban, to be used at the commencement of a siege, about 50 or 100 toises in front of the glacis, at the entrances of narrow passes, &c.
FUSILEERS, are soldiers armed like the infantry, with this difference only, that their musquets are shorter and lighter than those of the battalion and the grenadiers. They wear caps which are somewhat less in point of height, than common grenadier caps. There are three regiments in the English service: the royal regiment of Scotch Fusileers, raised in 1678; the royal regiment of Welch Fusileers, raised in 1685; and the royal regiment of Welch Fusileers, raised in 1688-9.
It is always presumed, that these corps, like the guards, possess anesprit de corps, which is peculiar to themselves.
As the fusileer regiments upon the British establishment are distinguished from other corps by some peculiarities, we shall briefly state what has occurred to us on the subject. In former times the officers of these regiments did not carry spontoons, but had fusils like the officers of flank companies throughout the line. At present they wear swords. It is necessary to remark, that there are not any ensigns in fusileer regiments; their junior officers rank as second lieutenants, taking precedence of all ensigns, and those of the 7th or Royal Fusileers, have no second lieutenants; so that they rank, with the rest of the army according to the dates of their several commissions, as lieutenants. On account of this difference, the first commission in the fusileers was, by a regulation issued from the War Office in 1773, rated fifty pounds higher than that of an ensign; whilst the first commission in the 7th having the pay of lieutenant attached to it, was rated at500l.that of the other two, having only the pay of ensign annexed, was 450l.
When the estimates of the British army were made out for the year 1755, the extra sum of 164l.5s.per annum was charged against the 7th regiment. This surplus, however, was easily explained when it came to be understood, that that regiment, being a fusileer corps, had 20 lieutenants, instead of 11 lieutenants and 9 ensigns. The difference between these commissions amounted to 9s.per diem, and the sum total to 164l.5s.per annum. The 23d, or royal regiment of Welch fusileers, wear helmets; and all officers belonging to fusileer corps have two epaulettes.
Fusiliers,Fr.Fusileers are men armed with fusils or light musquets. When pikes were in use among the French, each regiment had only four fusileers, exclusive of ten grenadiers who carried the fusil or musquet. At present fusils or musquets are universally adopted in the European armies. Among the French there was a distinct regiment of fusileers under the immediate command of the grand master of the ordnance. The length of a French fusil was directed to consist of three French feet eight inches from the touch-hole to the muzzle, and the calibre to have the diameter of a ball taking twenty to the pound.
FUYARD,Fr.a run-a-way, a coward.
Un corps fuyard,Fr.a regiment that has been in the habit of running away.
FUZE. SeeFuse.
FUZES.Composition.
Diameter inside the cup is 3 diameters of the bore.
Depth of the cup 1¹⁄₂ do.
Thickness of wood at bottom of the bore, 2 diameters.
To find the length of Fuzes for any Range.
The 13 and 10 inch fuzes of the same length burn so nearly equal, that one common length answers both, as do the 8 inch, 5¹⁄₂ and 4²⁄₅. Therefore, to find the length of fuze for any range, multiply the time of flight by 22 for the 13 and 10 inch, and by 24 for the 8, 5¹⁄₂ and 4²⁄₅; which is the decimal part of an inch a fuze burns in a second. Fuzes are thought to keep better by being painted; and for field service, are often marked off by black lines into seconds and ¹⁄₂ seconds.