The Connecticut Tool & Engineering Co. was in business by 1921 as a partnership of Daniel J. Williams and Hans Einar Dineson. Dineson left the partnership in 1923, with Williams taking sole control of business. By 1947 they were making die filers and sawing machines. By 1958 they were also making honing machines. In 1959 Daniel J. Williams, Jr., who had been vice president of Connecticut Tool & Engineering, was hired as sales manager for Producto Machine Co. of Bridgeport; we suspect that Connecticut Tool & Engineering had ceased operations.

Information Sources

• 1935 List of Connecticut Factories lists "Connecticut Tool & Engineering Co. / 109 Holland St. / Tools and special machinery".
• A 1921 patent gives us the names of the partners.
• 1923-10-25 The Iron Trade Review. "Bridgeport, Conn.—The Connecticut Tool & Engineering Co., 304 East Washington avenue, plans a 40 x 60-foot addition with steam power house."
• 1924-04-10 The Iron Trade Review.

  Connecticut Tool & Engineering Co., Bridgeport, Conn., manufacturer of special machinery has moved its factory from 304 East Washington avenue, to new quartrs at 109 Holland avenue. The partnership operating the company was dissolved, Hans Dineson withdrawing from the business and Daniel J. Williams remaining the proprietor.

• A 1947 issue of Modern Machine Shop (volume 20 page 208) has a writeup on this company's "Williams Model F-1 Die Making Machine". Company address was 544 Iranistan Ave., Bridgeport, Conn.
• 1948-02-05 Iron Age has a writeup on this company's die filing machine. They were at 544 Iranistan Ave., Bridgeport, Conn.
• 1951 Directory of Metalworking Machinery lists Connecticut Tool & Engineering Co. as makers of "combination ram type saw and filing machines" (with 5-inch stoke and 10 2/3 inch throat) and a provider of punches and dies. Their address was 544 Iranistan Ave., Bridgeport, Conn.
• 1958 trademark number 666,262 was granted to Connecticut Tool & Engineering Company, Round Hill Road, Fairfield, Conn., for the mark "WILLIAMS", for "diesets and power operated machines for filing, sawing and honing".
• 1959 issues of American Machinist list Connecticut Tool & Engineering Co. as makers of die filing machines. The address was Round Hill Road, Fairfield, Conn.
• Findagrave.com page on Hans Einar Dineson (1888-1966).
• From a PracticalMachinist.com forum post: a "Williams F3 Universal punch and die making machine" made by the Connecticut Tool and Engineering Co. The machine was covered by design patent D156,859.
• A search failed to turn up any ads or articles mentioning this firm after 1958, other than those in past tense. In particular we find several mentions of Daniel J. Williams, Jr., being hired or promoted by Producto Machine Co. (in 1958 and 1963, respectively) and mentioning his previous role as VP at Connecticut Tool & Engineering.