Resource Type
Counties
Month
Day
6 Matching Results
Results open in a new window/tab.
Results:
1 - 6 of
6
Gradometer.
Patent for a gradometer "which will accurately indicate under the most varying and unstable conditions the inclination and declination at which any moving body is traveling" (lines 10-13). The gradometer is "particularly adapted for use on motor vehicles" (lines 15-16).
Date:
May 17, 1921
Creator:
Hall, Sidney Wilson
System:
The Portal to Texas History
Automatic Railway Switch Lock
Patent for an automatic railway switch lock. Illustration included.
Date:
May 17, 1904
Creator:
Sulfer, Charles
System:
The Portal to Texas History
Apparatus for Dispensing Oil, &c.
Patent for a new and useful apparatus for dispensing oil, &c.
Date:
May 17, 1898
Creator:
Haye, August
System:
The Portal to Texas History
Baling-Press.
Patent for certain new and useful improvements in baling presses.
Date:
May 17, 1898
Creator:
Holmgreen, Julius H.
System:
The Portal to Texas History
Expanding Hub.
Patent for certain new and useful improvements in metallic vehicle wheel hubs, including instructions and illustrations.
Date:
May 17, 1898
Creator:
Vollrath, Louis F.
System:
The Portal to Texas History
Ice Making and Blocking Machine.
Patent for a new and improved ice machine. This design consists in "the combination of a non-conductive casing containing a freezing tank having water supply and discharge pipes, a water-tight diaphragm supported in said casing above the bottom of said tank having downwardly-tapered hollows in its upper surface and corresponding upwardly-tapered molds in its under surface, and a refrigerating medium contained within the said casing over said diaphragm and filling the hollows in the latter" (lines 82-91).
Date:
May 17, 1887
Creator:
Knox, George F.
System:
The Portal to Texas History