171 Matching Results

This system will be undergoing maintenance May 23rd between 9:00AM and 12:00PM CDT.

Search Results

Automatic Regulator for Pneumatic Flues

Description: Patent for a regulated valve to automatically maintain air pressure in a pneumatic conveyor flue. Excessive air pressure causes a secondary valve to open and vent the pressure while at the same time impeding air flow downstream.
Date: May 28, 1901
Creator: Caffey, Charles B.
Partner: UNT Libraries Government Documents Department

Combined Cotton-Seed and Corn Planter

Description: Patent for "a truck having operating mechanism changeable to either cotton or corn seeders and in combination therewith a hopper formed in sections, one of which is removable" (lines 14-17).
Date: May 28, 1901
Creator: Droitcourt, Adam
Partner: UNT Libraries Government Documents Department
Back to Top of Screen