Bullock, William A
inventor, was born in 1813, in Greenville, N. Y.
He gave his energies to the problem of constructing a printing press that should embody in one machine accurate self-adjustment and feeding, perfecting, printing on both sides, with the highest rate of speed. He was successful in accomplishing all these objects, and the Bullock web perfecting press revolutionized the art of press building. Subsequent modifications and improvements have brought the delivery up to thirty thousand an hour. He died April 14, 1867, in Philadelphia, Pa.