In about 1937, the business operating as Edwin E. Bartlett reorganized as the Greenerd Arbor Press Co., a name that seems to have been used intermittently for a few years before that. In 1962 the Calculograph Company acquired Greenerd Arbor Press Co. and renamed it to the Greenerd Press & Machine Co., Inc. Under these various names the business manufactured, and continues to manufacture, various kinds of mechanical and hydraulic presses.

More information

There is more information in the VM/Wiki, including arbor plate drawings for Greenerd presses.

Information Sources

• The official Greenerd company history has some inconsistencies with verifiable facts, such as claiming that Robert C. Greenerd's arbor-press patent was granted prior to 1883, when in fact it was granted in December 1891.
• 1873 Sampson, Davenport & Co.'s Lawrence Directory, page 93, lists "Greenerd Robert (C. F. Greenerd & Son), 109 Essex, bds. 3 Garden". Also listed is "Greenerd C. F. & Son (Robert Greenerd), boots and shoes, 109 Essex, house 3 Garden".
• 1881 Sampson, Davenport & Co.'s Lawrence Directory, page 130, lists "Greenerd Robert, machinist, house 59 May".
• 1884 Fifteenth Exhibition of the Massachusetts Charitable Mechanic Association, Boston, September-October 1884, page 295 in a description of the exhibit by Chandler & Farquhar Machine Tool Co., 23 Purchase Street, Boston: "...Also the Greenerd Arbor Press, indorsed by many of the leading manufacturers of machinery in the country."
• 1940 issue of Modern Machine Shop (volumes 12-13, page 148), article on Greenerd Straightening Blocks and Test Rolls as manufactured by the Greenerd Arbor Press Co., Nashua, N. H.
• 1971 brochure 100 Years: The Story of the Calculograph Company, notes that that the titular company acquired Greenerd Arbor Press Co. in 1971 and renamed it.