Collection
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3 Matching Results
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Casting-Machine
Patent for a casting machine. Illustrations included.
Date:
April 11, 1911
Creator:
Mills, Virgil H.
Object Type:
Patent
System:
The Portal to Texas History
Drop-Pilot or Cow-Catcher.
Patent for an improvement in drop-pilots or cow-catchers for street or steam-railways to allow the cow-catcher to stay higher above the track and be dropped in an emergency to catch large objects and prevent them from being trapped under the wheels. The improvement also contains a device for raising and lowering the cow-catcher, a mechanism for operating the brakes and whistle interdependently, and a single lever for the operator to use to control the various mechanisms.
Date:
April 11, 1916
Creator:
Maxfield, Nelson
Object Type:
Patent
System:
The Portal to Texas History
[Letter from D. W. Kempner to I. H. Kempner Jr., April 11, 1950]
Letter from D. W. Kempner to I. H. Kempner Jr. discussing the Whitney Dam area and the possibility of state park development with artificial lakes.
Date:
April 11, 1950
Creator:
Kempner, Daniel W. (Daniel Webster), 1877-1956
Object Type:
Letter
System:
The Portal to Texas History