Rexford Fire Grate, Patent Model

This model was submitted to the U.S. Patent Model with the application for the patent issued to Philander Rexford, of Syracuse, New York, August 14, 1883, no. 283144.
The model represents a furnace grate made up of long grate bars, which are pivoted midway of their depth and have projecting from the upper part of one side of each bar a series of teeth or ribs. When in their normal positions the bars stand obliquely and the smooth solid back of one bar and the ribbed face of the next form the two sides of a trough across the grate. The solid portion is designed to support very fine coal, while the ribbed portion permits the passage of air for combustion.
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
patent date
Rexford, Philander
place made
United States: New York, Syracuse
associated place
United States: New York, Syracuse
overall: 3 1/4 in x 3 1/2 in x 8 in; 8.255 cm x 8.89 cm x 20.32 cm
overall - from catalog card: 3 1/2 in x 7 in x 2 1/4 in; 8.89 cm x 17.78 cm x 5.715 cm
ID Number
catalog number
accession number
patent number
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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