Most industry in pre-1840 America was small, family-owned, and technologically primitive. Prior to 1840, there were almost no manufacturing enterprises sophisticated enough to require anything more than traditional methods of direct factory management by the owners.
The spread of the factory system was limited by the dependence on water power until this opening. From 1840, this blast furnaces began providing an inexpensive supply of pig iron for the first time. The availability of energy and raw material prompted a variety of industries to build large factories.
Survey found only 36 enterprises with 250 or more workers, of which 31 were textile factories. The majority enterprises had assets of only a few thousand dollars, had fewer than a dozen employees, and relied on water power.
E.g. Sewing machines and reapers
Railroad, steamship, and telegraph
Breakthroughs in distribution technology led revolution in MPT including the Bonsack machine for cigarettes, the "automatic-line" canning process for foods, practical implementation of the Bessemer steel process and eletrolytic aluminum refining.