"Among his other cares, the intellectual and social welfare of his numerous employés were not forgotten. Few mechanics are favored with as convenient residences as those he has erected for them; and a public hall, a library, courses of lectures, concerts, the organization of a fine band of music, formed entirely from his own workmen, to whom he presented a superb set of musical instruments, and of a military company of his operatives, provided by him with a tasteful uniform, and otherwise treated by him with great liberality, were among the methods by which he demonstrated his sympathy with the sons of toil."
The Hartford armory is the largest and most complete in the world, in extent and perfection of machinery. All the articles needed with the revolver, such as the powder flask, balls, lubricator, bullet molds, cartridges, etc., are made here on a large scale. The establishment is a noble monument to the inventive genius and business capacity of its founder.
In addition to his inventions of fire-arms, Colonel Colt invented a submarine battery, which was thoroughly tested by the officers of the United States Navy, and is said to be one of the most formidable engines for harbor defense ever known. He also invented a submarine telegraph cable, which he laid and operated with perfect success, in 1843, from Coney Island and Fire Island to the city of New York, and from the Merchants Exchange to the mouth of the harbor. His insulating material consisted of a combination of cotton yarn with asphaltum and beeswax; the whole was inclosed in a lead pipe. This was one of the most successful experiments of the early days of submarine telegraphy, and entitles Colonel Colt to a conspicuous place in the list of those who brought that science to perfection.
After the permanent establishment of his business, in 1847 and 1848, Colonel Colt's success was rapid. He acquired a large fortune, and built an elegant and tasteful mansion in Hartford, where he resided,