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7 Matching Results
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Spectacles
Patent for spectacles. Illustration included.
Date:
February 21, 1905
Creator:
Trulove, James William
System:
The Portal to Texas History
Safety-Clamp for Spectacle-Cases &c.
Patent for a safety clamp for spectacle cases and other small items, which holds the item in clothes pockets through the attachment of a clamp.
Date:
February 1, 1910
Creator:
Trulove, James W.
System:
The Portal to Texas History
Nut-Lock
Patent for a nut lock that can be easily applied and detached from a bolt. Will lock screws in place to avoid accidental rotation of the bolt and is less expensive to make.
Date:
February 16, 1915
Creator:
Boren, W. E.
System:
The Portal to Texas History
Tie Wire for Insulators
Patent for device that attaches wire to electric devices, without employing the use of tie wires.
Date:
February 6, 1917
Creator:
Boyter, Robert L.
System:
The Portal to Texas History
Watering Trough
Patent for livestock water trough that has a removable cover to prevent detritus from getting into the water.
Date:
February 20, 1917
Creator:
Scott, Charles F.
System:
The Portal to Texas History
Rail Joint
Patent for stronger design of rail joints for laying train tracks. Includes illustrations and instructions.
Date:
February 15, 1916
Creator:
Stephenson, William A.
System:
The Portal to Texas History
Automatic Trailing Device
Patent for an automatic trailing device. This device is made to "successfully follow the tracks of the front vehicle without the use of a driver on the vehicle in tow" (lines 14-17).
Date:
February 24, 1920
Creator:
Sloan, Charles Lee
System:
The Portal to Texas History