Blodgett Brothers & Company was an early electrical business started in Boston by two brothers, George and Aaron Blodgett in 1878. Both men were graduates of MIT. Their business consisted of a variety of electrical goods including bells, electric fire detector systems, electric batteries, watchmen's clocks, and an electrically operated program disc machine for the automatically operated ringing of bells for the starting of passenger trains in railroad stations.

Around 1894, Blodgett Brothers introduced a self-winding master clock to operate clocks and bells in schools. One of the first systems installed was the Somerville Massachusetts High School which opened in 1895. Over 19 clock systems had been installed by 1897 in various schools in eastern Massachusetts primarily. Their largest customers were the Boston public schools who by 1910 had installed Blodgett clock systems in at least 34 schools, including Brightron High, Dorchester High, West Roxbury High, East Boston High and Mechanic Arts High School plus many grammar schools. This is their catalog for Operating Electric Time Dials for Ringing School Programs.

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