Bullard Machine Tool Company
The Bullard Machine Tool Company was a large American machine tool builder. It specialized in vertical boring mills and was largely responsible for the development of the modern form of that class of machine tools.[2]
The firm was founded in 1894 by Edward Payson Bullard Sr (born 1841-04-18 in Uxbridge, Massachusetts, USA; died 1906-12-22 in Bridgeport, Connecticut, USA[3]). He received formative experience at the Colt armory and Pratt & Whitney,[3] which were influential development centers for generations of toolmakers.[4] Bullard Sr is believed to have developed the first small boring machine designed to do the accurate work previously performed on the faceplate of a lathe.[5] Roe (1916) says that "Up to that time boring machines were relied on only for large and rough work."[5]
Bullard Sr's son, Edward Payson Bullard Jr (1872–1953), continued the family machine tool business and brought the turret principle to the vertical boring mill, making it a vertical turret lathe.[6] For a while in America during the 20th century, the name "Bullard" on the shop floor was something of a genericized trademark for vertical turret-head boring mills.[7] E.P. Bullard Jr led the development of the company's multiple-spindle Mult-Au-Matic brand machine that became an important automatic lathe in the mass production of parts for the automotive industry.[1][6] Bullard Jr was president of the company for 40 years, through World War I, the interwar period, and World War II, a period during which the Bullard company was the largest machine tool builder in the U.S.,[6] and vast volumes of military matériel were produced by countless companies running Bullard machines.
References
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- Lua error in package.lua at line 80: module 'strict' not found.. Reprinted by McGraw-Hill, New York and London, 1926 (LCCN 27-24075); and by Lindsay Publications, Inc., Bradley, Illinois, (ISBN 978-0-917914-73-7).
- ↑ 1.0 1.1 Roe 1916, p. 276 ff.
- ↑ Roe 1916, pp. 183-185
- ↑ 3.0 3.1 Day 1996, pp. 113-114
- ↑ Roe 1916, p. 174
- ↑ 5.0 5.1 Roe 1916, p. 184
- ↑ 6.0 6.1 6.2 American Precision Museum 1982
- ↑ Burghardt 1959, p. 12.
