For a long time after its introduction gunpowder was used in the form of dust or “meal powder.” Granulation was attempted to get rid of the difficulties in handling the dust, but the grained form proved too strong for the arms used, and “meal powder” continued in general use till improvements in the weapons about the close of the 16th century admitted of the other form. The granulation was at first very crude. This was remedied in time by the introduction of machinery or corning-mills in the manufacture. Though different-sized grains were at first used in large and small guns the principles involved were not studied, and afterwards one uniform size—large musket powder—was employed in all fire-arms. This step backwards may have been caused by the impurity of the ingredients and bad manufacture, which made the large grains too weak. In the early part of the present century a classification of grains was revived under the two general names of musket and cannon powder. The invention of the mercury densimeter rendered practicable an accurate determination of the specific gravity of powder and its relation to quickness of burning, but the importance of size and form of grain was first appreciated by Gen. Rodman, who, in 1859, began experiments which led at once to the introduction of [mammoth powder] for large guns, and later to the invention of perforated cake. The introduction of the powerful ordnance now existing in Europe has been rendered possible by improvements in this direction based upon the principles first formulated by Rodman. The latest idea on the subject is “compensating powder” (proposed by Lieut. C. A. L. Totten, of the 4th U. S. Artillery), a spherical grain of gunpowder inclosing a smaller sphere of gun-cotton. This powder remains to be made and experimented with, but it opens a field of research which must lead to valuable results.
Gunpowder, Absolute Force of. See [Absolute Force of Gunpowder].
Gunpowder Pile-driver. A pile-driver operated by the explosive force of gunpowder. The hammer is arranged as usual to slide in vertical guides. It has a piston on its lower end, which enters a cylindrical hole in the pile-cap. In this hole the cartridge is placed, and is exploded through the compression of the air by the piston of the hammer, when the latter falls. The explosion drives down the pile and raises the hammer at the same blow. The powder ordinarily used is a mixture of chlorate of potash and bituminous coal.
Gunpowder Plot. A conspiracy entered into by a few Roman Catholics to destroy the king, lords, and commons on the meeting of Parliament on November 5, 1605. On the evening of the 4th, the famous Guy Fawkes, who was to be the leader and agent of the conspirators, was detected under the vaults of the House of Lords preparing the train for being fired the next day; and on the morning of the 5th, a little after midnight, he was arrested, examined, and tortured. He confessed his own guilt, but would not discover his associates. However, all of them were either killed on being captured, or died on the scaffold, except one. The memory of this plot has survived in England, and the name of Guy Fawkes is detested.
Gunpowder-mill. See [Mill, Gunpowder-].
Gunreach. The reach or distance to which a gun will shoot; gunshot.
Güns. A town of Hungary, situated on the river of the same name, about 57 miles south-southeast of Vienna. It is famous for its noble defense of its fortifications for twenty-eight days against the Turks under Solyman in 1532, thus enabling the emperor Charles V. time to assemble a force strong enough to oppose them.
Gunshot. The distance of the point-blank range of a cannon-shot. The distance to which shot can be thrown from a gun so as to be effective; the reach or range of a gun.
Gunshot. Made by the shot of a gun; as, a gunshot wound.
Gun-sling. See [Sling].