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4 Matching Results
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Attachment for Cultivators.
Patent for an improved arch-bar for cultivators that allows increasing and decreasing the space between drag bars without having to stop the team of horses.
Date:
July 31, 1906
Creator:
Weempe, Charles M.
System:
The Portal to Texas History
Adjustable Window Shade and Curtain Hanger.
Patent for an adjustable window shade frame that can be mounted on an existing window to allow curtains or shades to be adjusted from the top or the bottom, and secured at any desired level for privacy and/or ventilation.
Date:
December 31, 1918
Creator:
Edens, Myrtle J.
System:
The Portal to Texas History
Ice-Cream Freezer.
Patent for an ice cream freezer that consists of a can with a joint bearing in the middle, a cover with openings in the center and a central vertical flange, a lid that fits over the central vertical flange, and a shaft with horizontal arms that rotates.
Date:
July 31, 1894
Creator:
Wallace, Lloyd & Wallace, Jeff Davis
System:
The Portal to Texas History
Railroad-Track Lifter.
Patent for improvement in railroad-track lifters by using “the combination of a base, a upright, a lever and two pawls engaging notches of the upright” (lines 97-99) and “hand mechanism for operating the pawls,” (lines 1-2, p. 2) for easily raising sections of railway-track. Illustration is included.
Date:
March 31, 1891
Creator:
Brown, Hiram David
System:
The Portal to Texas History