Resource Type

Oil Well Strainer (open access)

Oil Well Strainer

Patent for an oil well strainer that increases the surface area of the inlet, and also provide protection to the person straining.
Date: October 24, 1916
Creator: Hardin, Otis & Daniels, Veerin B.
System: The Portal to Texas History
Revolving Plow. (open access)

Revolving Plow.

Patent for a new and improved revolving plow. This design calls for a cylinder with blades attached radially for "cutting up, breaking, and turning over the soil or turf, in which the cutter blades are freed automatically" (lines 7-10). This plow cuts up, breaks, and turns over earth faster than previous designs.
Date: October 31, 1882
Creator: Hurd, Judson B.
System: The Portal to Texas History
Pipe-Puller (open access)

Pipe-Puller

Patent for improvements in pipe pullers, mechanisms for use with pipe casings for wells and the pulling of pipe and better gripping jaws.
Date: October 8, 1918
Creator: Robichaux, Sosthene
System: The Portal to Texas History