This business was established in 1921 as "Hamilton Ross Factories, Inc." by Mr. Hamilton Ross. In about 1950, this company made a small scrollsaw and the Drill-O-Matic ¼" pistol-grip electric drill.

There is a connection to Atkins Industries, Inc., which shared the same street address and made a very similar scrollsaw. Compare this Atkins saw with this Hamilton Ross saw.

Information Sources

• Between 1927 and 1929, a company named Hamilton-Ross Factories, Inc. was granted a half dozen design patents for ornately decorated table lamps.
• The Library of Congress lists a 1947 sales sheet in their collection from Hamilton Ross Industries, Inc.: "Crystal floral globe table lamp and shade."
• The 1949 edition of who's Who in the Midwest lists

  ROSS, Hamilton, business exec.; b. Chicago, Apr. 10, 1894; s. Joseph and Bess (Leiferman)... Organizer and pres. Hamilton Ross Industries, Inc., Chicago, since 1921; also Atlas Reed Co. since 1932, Remington Morse Co., Beverly Hills, Calif. since 1943, Hamilton Ross Publications, Sheffield-Lloyd Co.,...

• Ad in April 1952 Popular Science for a fishing kit (rod, reel, lures, and knife). The company name is Hamilton Ross Industries, Co. and the address was "Box No. 7140, Chicago 80, Ill."
• Seen on eBay: a small scroll-saw of all-metal construction. It is toy sized but somewhat heavier duty than a typical toy saw. It is labeled as follows:

  Use only with 115 Volts A. C.
  60 cycles – 75 Watts 1.5 Amps.
  HAMILTON ROSS IND. INC.
  5823 N. Ravenswood Ave.
  Chicago 26, Ill. U.S.A.
  MODEL 51 Pat.Appl.For
  HAMILTON ROSS
  Industries Inc.
  Chicago, Ill.

• Also seen on eBay: a small electric drill from this maker. The drill is not the usual pistol-grip design, but rather has a folding wooden handle mounted near the front of the drill body. A separate eBay listing was seen for a Drill-O-Matic ¼" pistol-grip electric drill with all-aluminum housing.