Resource Type

Cotton-Chopper (open access)

Cotton-Chopper

Patent for a cotton chopper and cultivator which has adjustable cutters.
Date: June 18, 1912
Creator: Cain, James N.
Object Type: Patent
System: The Portal to Texas History
Primary Care Case Management Primary Care Provider and Hospital List: Northwest Texas, June 2011 (open access)

Primary Care Case Management Primary Care Provider and Hospital List: Northwest Texas, June 2011

List of Primary Care Case Management program approved primary care providers, hospitals, specialists, and family planning providers, located in the Northwest Texas area.
Date: June 2011
Creator: Primary Care Case Management
Object Type: Book
System: The Portal to Texas History
Spirit Level. (open access)

Spirit Level.

Patent for a spirit-level by Allan T. Gibson. Meant for helping users obtain level and perpendicular lines with more ease and accuracy, as well as for determining any intermediate angle.
Date: June 26, 1906
Creator: GIbson, Allen T.
Object Type: Patent
System: The Portal to Texas History
Equalizer for Pump Rods (open access)

Equalizer for Pump Rods

Patent for an equalizer for pump rods. This invention is designed to "assist in elevating the column of water in a pump, is designed to sustain the pump rod in its fixed position" (line 11-14). Illustration included.
Date: June 13, 1911
Creator: Johnson, Robert H.
Object Type: Patent
System: The Portal to Texas History