of all of them machines—more or less satisfactory in their workings—have been devised. The parts of the uppers are now sewed together by machinery, and they are pegged, sewed, or screwed to the sole by machinery. Instead of the lapstone and the hammer for condensing the leather are now swiftly revolving rollers, and instead of the patterns for cutting out the soles are dies or sole-shaped knives set in machines.
But the field of shoe machinery is such a wide and complex one that it will be impossible to do more than glance at what may
Two of these latter are worthy of note, as they contained within them the suggestions which, a half-century later, were put into practical operation. The first of these attempts was made in 1809 by David Meade Randolph. He devised a way for fastening the soles and heels to the inner sole by means of nails. His plan was to use lasts covered at the bottoms with metallic plates, so that the nails, when driven through the soles, were clinched on this piece of metal. The next year Mark Isambard Brunel, the eminent engineer, carried this idea a step further. He