Resource Type
Counties
Decade
Day
3 Matching Results
Results open in a new window/tab.
Results:
1 - 3 of
3
Wrench.
Patent for an adjustable wrench.
Date:
October 31, 1911
Creator:
Harris, Robert M. & Bottoms, William L.
System:
The Portal to Texas History
Fire-Engine.
Patent for "an apparatus for extinguishing the fire in oil wells and the principal object of the invention is the provide means for creating a suction at the mouth of the well for extinguishing the fire."
Date:
August 31, 1920
Creator:
Smith, Paul E.
System:
The Portal to Texas History
Fastener for Fish-Plates for Rails.
Patent for improvements in fasteners for fish-plates for rails by using a combination of fish-plates, washers placed in between the plates and rail, a slotted bolt, a wedge-shaped key with thin bendable portion and a washer on the bolt between the key and fish-plate to “firmly hold the plates in position but will serve to deaden the noise caused by the fractional contact of the parts,” (lines 18-20) includes illustration.
Date:
March 31, 1891
Creator:
Gary, John S.
System:
The Portal to Texas History