On this day in 1835, Henry Burden patented the horseshoe manufacturing machine. I could spend all day looking up patents and other invention information. Using free web directories makes it easy to find some of the more detailed information on these discoveries.

The capacity of these works in the line of horseshoes alone is 60 shoes a minute, or 51,000,000 annually. In boiler bolts, 80 per minute are the work of the twelve rivet machines. In the spacious rolling mill (421 by 96 feet), devoted to merchant iron manufacture, is a splendid Corliss engine. 1400 workmen are employed, to whom $500,000 are annually paid in wages. The fruits of their labor are 600,000 kegs of horseshoes and 42,000 tons of iron, exclusive of pig, annually. Their yearly sales of horseshoes average about $2,000,000. Fifty horses are used, and 90,000 tons of coal expended annually by this establishment

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