Uhry and Luttgens Valve Gearing, Patent Model
Uhry and Luttgens Valve Gearing, Patent Model
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- Description
- This model was submitted to the U.S. Patent Office with the application for the patent issued to H. Uhry and H. A. Luttgens, of Paterson, New Jersey, March 20, 1855, no. 12564.
- The model represents a “link motion” applicable to marine, locomotive, or stationary steam engine. It is a combination of three eccentrics, the ordinary Stephenson link motion, an additional link pivoted to the Stephenson link, a differential rocker, and a main rocker. The main rocker and the Stephenson link operate one valve, which distributes steam to the cylinder, supplies outside lead, and cuts off the steam in proportion to the decrease of travel. The valve operated by the differential rocker exhausts the steam and opens and cuts off the admission of steam near full stroke of the piston.
- Reference:
- 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.
- Location
- Currently not on view
- Object Name
- valve gearing, steam engine, model
- patent model, valve, steam
- Object Type
- Patent Model
- date made
- 1855
- patent date
- 1855-03-20
- inventor
- Uhry, H.
- place made
- United States: New Jersey
- associated place
- United States: New Jersey, Paterson
- Measurements
- overall: 5 3/4 in x 13 1/4 in x 3 1/2 in; 14.605 cm x 33.655 cm x 8.89 cm
- cylinder and eccentrics - from catalog card: 10 in; 25.4 cm
- ID Number
- MC.308656
- catalog number
- 308656
- accession number
- 89797
- patent number
- 12,564
- See more items in
- Work and Industry: Mechanical and Civil Engineering
- Bulletin 173
- Engineering, Building, and Architecture
- Work
- Industry & Manufacturing
- Data Source
- National Museum of American History
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