Comptometer operators had long been trained to use only the lower half of the keyboard, as it was faster to push, say, the 4 and then the 5 key than to reach up the hand to the 9 key. The German Torpedo, introduced in 1931, had a more distinctive keyboard. These included a Swiss machine similar to the Comptometer known as the Direct and a much later Italian copy of the Comptometer called the Addicalco. Patent rights eventually were acquired by the Monroe Calculating Machine Company.Ī few adding machines made overseas reached the United States. Clyde Gardner, who had worked at Pike and at Burroughs, died shortly after establishing the Gardner Adding Machine Company in 1923. Not all inventors lived to see their machine produced. An electric version sold from the late 1930s. The Barrett also remained in production, made by the Lanston Monotype Company of Philadelphia from about 1928. It was manufactured by Corona, which took over sales and renamed the machine in 1926. Barrett, who had worked on the Barrett adding machine before World War I, patented the much lighter Portable. Two years later, the company was taken over by Chicago grocer Carl Buehler, whose family managed the firm successfully for many years, eventually merging with Felt & Tarrant. Johantagen, who had patented several machines, saw his Victor Adding Machine begin to sell in 1920. Allen-Wales, in turn, was acquired by National Cash Register Company in 1944.ĭuring the 1920s and early 1930s, several other inventors saw the adding machines they had devised come to market. In 1926, he arranged for the Allen Corporation to purchase the Wales Adding Machine Company, and soon thereafter the Peters-Morse Company, to form Allen-Wales Corporation. Allen first imported calculating machines from Europe. Allen, who worked at Burroughs from 1904 until he went into business for himself in 1924. The Wales machine attracted the attention of Ralph C.
Both offered visible printing of results, unlike the first Burroughs machines. The inventor Charles Wales also spent a brief time at Burroughs, although he is better remembered as the inventor of the Wales and the later Federal adding machines. Burroughs soon acquired the rights to both the Pike and the Universal machines, and both Pike and Rinsche returned to the company.
Rinsche joined with others to form the Universal Accountant Machine Company of St. Pike went on to invent the Pike adding machine, which was produced in New Jersey from 1904 onward. Rinsche, both worked at American Arithmometer Company in St.
The inventors of two other adding machines, William H. He would spend the rest of his career there. However, Turck chose to leave Providence Mfg and Tool Company, the makers of the Mechanical Accountant, to take a position at Felt & Tarrant.
The Mechanical Accountant, as he named the machine, was produced in Providence into the 1920s. Turck (1870-1956) of Providence, Rhode Island, took out patents for a key-driven adding machine in 18. Their inventors often had ties to one of the older companies, and competition was fierce.
Burroughs portable adding machine serial number full#
In the early twentieth century a variety of companies manufactured full keyboard adding machines that competed with the products of Felt & Tarrant and of Burroughs.
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