4 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "earth"  
Results: 1 - 4
captions transcript

[News Clip: Taft Series #4]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: April 28, 1977, 10:00 p.m.
Duration: 4 minutes 35 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections

Well-Drilling Apparatus.

Description: Patent for an improved, simple, and efficient well sinking or drilling mechanism, especially meant for bit-securing devices, and the drill bits can be easily removed without removing the well tubing from the hole. The inventor uses "a stem or core carrying the drill bit and adapted to fit snugly in the bore of the tubing, together with a simple combination of devices whereby such stem or core can be locked against longitudinal and rotary movement by the manipulation of an operating rod which ex… more
Date: May 8, 1894
Creator: Horton, Stephen A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Earth-Auger.

Description: Patent for an earth-auger that is more effective than other augers and can be constructed to make different sized holes. It is operated by moving two blades back and forth.
Date: April 16, 1895
Creator: Smith, Wiston Allin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Earth-Auger.

Description: Patent for an earth-auger meant to dig post-holes. It has a lateral "cutting-edge and a continuous cutting-edge from its point to its top, said cutting-edge receding continuously and uniformly from the axis of rotation of the tool, whereby it cuts from the center outward and gradually widens or increases the diameter of the hole at any given point until this point is reached by the periphery of the ears or basin at the top of the bit, and, furthermore, to provide means for packing or smoothing … more
Date: January 28, 1896
Creator: Pederson, Hans
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
Back to Top of Screen