But wars ran out, the market closed, and the “Patent Arms Company” failed. What put Colt on his feet again was the Mexican war a few years later. General Taylor offered Colt a contract for one thousand revolvers at $24 each, and though the young inventor was looked upon as a ruined man he took the contract, got together the necessary capital, and built a factory on the Connecticut at Hartford. From that time on there was no want of a market. The “Forty-Niners” took revolvers to California, foreign governments sent orders for them, and armories were built in England and in Russia for their manufacture. Colt died in 1862, but the Civil War had previously opened a great market for his pistols, and before the conflict ended the Colt factory at Hartford was in a highly flourishing state. In the following years the revolver became a prime necessity in dealing with the Indians of the West, and a school-book statement of that date was to the effect that: “The greatest civilizer of modern times is the Colt revolver.” Another writer, speaking of the “Peacemaker,” an effective weapon produced after 1870, said: “It has the simplicity, durability, and beauty of a monkey-wrench.” [Illustration: AUTOMATIC MACHINE GUN MOUNTED ON TRIPOD, SHOWING BELT PASSING OUT (RIGHT SIDE)] Machine Guns. The revolving idea was applied to guns about 1861 by Richard J. Gatling, the first Gatling guns fitted for use with metalling ammunition being produced by the Colt Company in 1870. These guns had ten barrels revolving around a central shaft and in their developed form were capable of being fired at the rate of one thousand shots a minute. The first of these to be used prominently in warfare was the French mitrailleuse, used by France in the war of 1870-71. The Gatling soon made its way widely, and its rapidity of fire became a proverb. If anything moved quickly it was said to “go like a Gatling” or “sound like a Gatling.” [Illustration: AUTOMATIC GUN MOUNTED ON AUTOMOBILE] Other guns of this type are the Hotchkiss, the Nordenfeldt and the Gardner, and a more recent one is the Maxim, which, after the first shot is fired by hand power, continues to fire shot after shot by means of the power derived from the explosion of each successive cartridge. In the early form of the revolver the empty cartridge cases had to be ejected from the cylinder singly by an ejector rod or handy nail. In 1898 a new type was introduced with a lateral swinging cylinder which permitted the simultaneous ejection of all the empty shells. Near the time of the Spanish-American War appeared what is known as the Colt automatic gun, operated by the action of the powder gases on a piston and lever near the muzzle of the barrel. This could be fired at the rate of 400 to 500 shots a minute, and by reason of its light weight could be very easily carried. The British used it effectively in the Boer War.