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Chest for Piston-Valves.
Patent for a valve chest "fitted for the reception and operation of a piston valve, easily applying to a piston cylinder of a locomotive in place of a removed slide-valve chest without loss of the cylinder, adapting to use superheated steam and high pressure." (lines 11-19).
Date:
May 23, 1916
Creator:
Dawson, Lance L. & Roach, John L.
Object Type:
Patent
System:
The Portal to Texas History
Planting Seeds
Photograph of James Doneghy combining seed from 20 acre field of weeping lovegrass planted April 17, 1945, in 42" rows. Yielded 40 seed per acre on July 31, 1945.
Date:
May 23, 1946
Creator:
Rhode, C. G.
Object Type:
Photograph
System:
The Gateway to Oklahoma History