Famous figures with Somerville ties
Daniel C. Stillson
The machinist lived in Somerville and worked at the Walworth Company in Cambridgeport. There, he invented and patented the modern adjustable pipe wrench.
According to his patent application, Stillson wanted to make an affordable wrench that could be used for multiple shapes, like pipes or polygonal screws.
He also invented the modern-day fire sprinkler.