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Sterns & Hodgson Governor - Castings & Drawings Set

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Sterns & Hodgson Governor - Castings & Drawings Set
Part #H-SHG-castings

Availability: In stock

Patent model of Sterns & Hodgson Governor castings and drawings set




  • This model is a working example of the fly ball governor developed and patented by George Stearns and William Hodgson, of Cincinnati, Ohio in 1852. According to the patent documents, “The advantage gained by constructing a governor after this plan, consists in its simplicity and cheapness, composed with common methods usually employed of building governors, the quadrants and cylindrical rack before mentioned do away with levers, axes and collars which are found to be much more expensive than the rack and its attachments”.
  • This model is an excellent demonstration tool or conversation piece to decorate your desk.
  • The castings along with the detailed drawing package will build into an eight inch tall reproduction based on the patent model of the Stearns and Hodgson Fly Ball Governor.


  • Scale: About 3/4 inch = 1 inch on patent drawings
  • Overall Height of Model: 8 inches

Castings & Drawings:

  • 5 Ductile Iron castings, 2 steel balls, 4 steel dowel pins
  • 4 sheets (11 x 17) CAD drawings including copy of US Patent #9236, machining and assembly details, and  section views to aid assembly.
  • Shipped in 1 package
  • Note: This set contains castings, dowel pins, steel balls and drawings. There are additional parts made from bar stock and fasteners that are not included. However, the machining details for parts made from bar stock are include in the drawings. There are also two pinion gears that are made from open stock gears that are not included in the casting and drawing set. The manufacturer’s stock numbers for the gears are on the drawings.
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