Resource Type
States
Counties
Month
5 Matching Results
Results open in a new window/tab.
Results:
1 - 5 of
5
CANAL-GATE.
Patent for an improvement to canal-gates that is "a simple and comparatively inexpensive contrivance for receiving a handle of the shank of a handle which is attached to the lock or gate" (lines 18-22) including an illustration.
Date:
March 9, 1920
Creator:
Perry, Charles Franklin
System:
The Portal to Texas History
Locking-Bolt for Guards to Openings.
Patent for a locking mechanism for windows, which cannot be unlocked from the outside.
Date:
March 31, 1908
Creator:
McNeil, Clarence W.
System:
The Portal to Texas History
Oil-Separator.
Patent for the invention of a new oil separator with all its descriptions.
Date:
March 12, 1912
Creator:
Latham, Reginald W.
System:
The Portal to Texas History
Geometrical Instrument
Patent for a geometrical instrument. This instrument is used to create a straight edge with pivoted blades, like a protractor, to be used for laying protracted angles, etc.
Date:
March 26, 1918
Creator:
Anderson, Andrew E.
System:
The Portal to Texas History
Pendant for Stem-Winding Watches.
Patent for a "pendant for a watch which can be turned in every direction and can be screwed into the watch-case" (lines 8-10), including instructions and illustrations.
Date:
March 23, 1880
Creator:
Rossetti, John Theodore
System:
The Portal to Texas History