Boll-Weevil Device. (open access)

Boll-Weevil Device.

Patent for a cost-effective device that can remove and exterminate parasites from cotton as it's being harvested without damaging the cotton itself, including illustrations.
Date: December 28, 1920
Creator: Reeder, Leonard F. & Jackson, Walter B.
System: The Portal to Texas History
Oil Burner. (open access)

Oil Burner.

Patent for oil burner improvements, including economic and easily handle to control the pressure to control the oil and steam within the burner head.
Date: February 9, 1920
Creator: Obenshain, Kyle Derias
System: The Portal to Texas History
Fuse Block (open access)

Fuse Block

Patent for improvements to Patent No. 1113528. Invention provides a fuse block where the fuses can be replaced by a lineman without being in close proximity to the primary circuit wires. Invention also allows various types of fuses to be used.
Date: May 3, 1921
Creator: Anderson, Lou Belle
System: The Portal to Texas History
Cotton-Picking Machine. (open access)

Cotton-Picking Machine.

Patent for a cotton-picking machine that arranges the picking elements at different elevations and spaces them apart "so that while several plants will be picked at the same time, only one portion of a plant will be worked on at a time," (lines 14-17), minimizing disturbance of the plant.
Date: June 28, 1921
Creator: Becknell, George T.
System: The Portal to Texas History
Window-Sash Gearing and Lock (open access)

Window-Sash Gearing and Lock

Patent for a window sash mechanism that allows the upper and lower portions of a window to be adjusted and locked independently of each other.
Date: March 1, 1921
Creator: Peaden, William H.
System: The Portal to Texas History
Wire-Stretcher. (open access)

Wire-Stretcher.

Patent for an adjustable wire stretcher.
Date: January 4, 1921
Creator: Tompkins, Walter L.
System: The Portal to Texas History
Dental Impression-Tray. (open access)

Dental Impression-Tray.

Patent for improvements in dental impression trays that is adaptable for when there is only one or a partial set of teeth. There is a separate, smaller dental impression tray that is easily accessible and can be adapted to take impressions of one tooth or partial teeth.
Date: August 31, 1920
Creator: Littlejohn, Thomas F.
System: The Portal to Texas History
Cotton-Chopper. (open access)

Cotton-Chopper.

Patent for agricultural machines to "permit the chopper to pass predetermined plants during the operation of the machine through a planted field." (lines 13-16)
Date: June 15, 1920
Creator: Hart, Granville M. & Wall, James Edgar
System: The Portal to Texas History
Parcel Carrier (open access)

Parcel Carrier

Patent for improvements in parcel carrier for automobiles.
Date: September 13, 1921
Creator: Campbell, William L.; Straughan, Augustus E.; Commons, A. J.; Weisman, S. & Winton, E. H.
System: The Portal to Texas History