Founded by Charles Portass and Stanley Moore Portass as the Heeley Motor & Mfg. Co. in the mid 1920's. In about 1930, Stanley launched Portass Lathe & Machine Tool Co. to manufacture heavier types of metalworking lathes. The firm was liquidated in 1970.
Information Sources
- Directory of Sheffield Tool Manufacturers 1740-2018, ©2019, pg. 395-397
- More history and machine information can be found at Tony Griffith's Lathe web site.