Automatic Regulator for Pneumatic Flues (open access)

Automatic Regulator for Pneumatic Flues

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.
System: The Portal to Texas History
Hay-Press. (open access)

Hay-Press.

Patent for a hay bailing machine. "The invention relates to bailing-presses, and more particularly to that class adapted for bailing hay, straw, &c.; and it has for one object to provide a simple and efficient construction in which a continuous rotation of the bailing-lever will act in conjunction with a retractile spring to reciprocate the plunger" (lines 7-13). "A further object of the invention is to provide a simple and efficient construction of detent for holding the gate after the hay or other material has been compressed and while the piston is retracted" (lines 14-18). Includes specifications and illustrations.
Date: May 1, 1900
Creator: Garrett, Irvin H.
System: The Portal to Texas History