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5 Matching Results
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Paper-Clip
Patent for an improved paper-clip "which is extremely simple in construction, permitting ease of manipulation and the manufacture thereof at a greatly reduced cost" (lines 12-14).
Date:
September 2, 1919
Creator:
Lea, Thomas
System:
The Portal to Texas History
Orchard-Heater.
Patent for
Date:
September 2, 1913
Creator:
Cole, Robert F.
System:
The Portal to Texas History
Metallic Tie and Rail-Fastener
Patent for a metallic tie and rail fastener that does not require the use of bolts.
Date:
July 2, 1912
Creator:
Arellano, Francisco
System:
The Portal to Texas History
Safety Attachment for Automatic Train Stops.
Patent for an attachment to an automatic train stop device (Patent of The United States Number 1,267,179) which aims "to correct certain defects or deficiencies in the previous structure and so make the device more practical and reliable" (lines 15-17).
Date:
July 2, 1919
Creator:
Bulla, Melbern Bennie
System:
The Portal to Texas History
Controlling System for Motor-Traction Cars.
Patent for controlling systems for motor traction cars. These controlling systems provide automatic control outside the volition of the motorman.
Date:
April 2, 1912
Creator:
Mayo, William C.
System:
The Portal to Texas History