The Union Electric Motor Co. was established in 1917 to manufacture single-phase induction motors. In 1920 they changed their name to the Union Electric Motor & Manufacturing Co. In January 1924 the company was dissolved by the State of Delaware, where they were incorporated, after failing to pay their taxes for two years.

Information Sources

• There is remarkably little information on available on this company. Thus far we have not found any ads, articles, catalogs or other ephemera related to this manufacturer.
• Motor with nameplate "Union Electric Motor Mfg. Co. / Philadelphia, Pa., U.S.A. / Induction Motor" and a patent date, Nov. 6 1917. We have not found an electric motor patent assigned to this firm, nor could we find a motor patent issued on this date and granted or assigned to someone in Philadelphia. The patent corresponding to this date is almost certainly 1,245,701.
• 1912 McGraw Electrical Directory, page 686, in a listing of Electrical Dealers and Contractors in Philadelphia. "Michael I. Ginsburg, 109 N. 6th St. C R". The C R at the end means "Contractor" and "Repair Shop".
• 1920 The Cumulative Daily Digest of Corporation News, page 290.

  Union Electric Motor & Mfg. Co., Philadelphia. NEW NAME.—See Union Electric Motor Co.
  Union Electric Motor Co. NOTICE of change of name to Union Electric Motor & Mfg. Co., Philadelphia, filed at Dover, Del., May 22. N. Y. Times, May 23, p. 23.

• 1923 E M F Electrical Year Book, page 956.

  Union Electric Motor & Mfg. Co.—Randolph & Montgomery Ave., Philadelphia, Pa. Manufacturer of repulsion-induction, single-phase motors. Business established 1917.

  On page 603 it provides a subset of this information but ads the trade name "Union".
• 1926 Marvyn Scudder Manual of Extinct Or Obsolete Companies, page 1243.

  Union Electric Motor Co., Philadelphia. Incorporated Delaware. Name changed to Union Electric Motor and Manufacturing Company May 22, 1920.
  Union Electric Motor & Mfg. Co. Delaware charter repealed January 23, 1924. Taxes unpaid for two years.

• 1927 Industrial Directory of Pennsylvania, Volume 6, page 983: "Ginsburg, M. J. — See Union Electric Motor & Mfg. Co." Michael I. Ginsburg was granted motor patent 1,245,701 on 1917-11-06, and that patent date was seen on a motor from Union Electric Motor Mfg. Co.
• 1936 Eighth Industrial Directory of the Commonwealth of Pennsylvania, page 929, lists "Union Electric Motor & Mfg. 1530 N. Hancock St., Phila." This listing is useful for the address given. It is not good evidence that the company was still in business in 1936.