Pickering Ball Governor

This is the modern form of the Pickering governor and has the same spring mechanism carrying the governor balls. It is provided with a speed ranger for obtaining different engine speeds up to a 50 percent increase over the minimum speed, and includes also an enclosure over the ball and gear mechanism.
The principle of the Pickering governor was widely adopted during the early 20th century to governing the speed of practically every type of machine and mechanism. It does not depend upon gravity for its proper operation and can, therefore, be used in any position, while the simplicity of its construction permits it to be made in every size. The principle is employed in the governors of telephone dials, talking machines, internal combustion engines, air compressors, steam engines, and steam turbines.
This description comes from the 1939 Catalog of the Mechanical Collections of the Division of Engineering United States Museum Bulletin 173 by Frank A. Taylor.
Currently not on view
date made
place made
United States: Connecticut
overall-from catalog card: 30 in x 10 in; 76.2 cm x 25.4 cm
overall: 27 3/4 in x 13 in x 6 1/4 in; 70.485 cm x 33.02 cm x 15.875 cm
ID Number
catalog number
accession number
serial number
Credit Line
Gift of The Pickering Governor Company, Portland, Connecticut
See more items in
Work and Industry: Mechanical and Civil Engineering
Industry & Manufacturing
Bulletin 173
Engineering, Building, and Architecture
Data Source
National Museum of American History


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