Is anyone familiar with this "land Monitor?"

DAILY TIMES [LEAVENWORTH, KS], September 18, 1862, p. 2, c. 1
A machinist is constructing, in St. Louis, a warlike implement to be called a land Monitor. The inventor is not able alone to complete it, and asks two thousand dollars from some capitalist. The description makes it out a "big thing." The carriage, it is said, will weigh about twenty-five thousand pounds, and will cost about two thousand dollars. It may be effectually used by one gunner, a horseman and two horses, against 1,000 cavalry or infantry with speed, ease and safety—self loading, cleaning, and firing fifty shots with rifle accuracy every five seconds, 600 in a minute, or at longer intervals, sweeping a line of from 10 feet to 500 yards, at the will of the gunner, until 5,000 shots have been discharged; and with an intermission of five minutes between every 5,000 shots, the same may be repeated as long as ammunition lasts. If desired, it may be brought to bear on any point—front, rear, right or left—in less than half a minute, without shifting the position of the carriage and horses.