6 Matching Results

Search Results

Results: 1 - 6

[Rasmussen Family Building a Windmill]

Description: Copy negative of a black and white photograph of three men atop a windmill during its construction, as seen from dog's eye view. One man sits on a top corner while the two other men stand or balance on the cross beams. All of the men are wearing shirts and pants; two of the men are wearing hats.
Date: 1923
Item Type: Refine your search to only Photograph
Partner: Danish Heritage Preservation Society

Irrigating Apparatus.

Description: Patent for new and useful improvements in irrigation apparatuses. The design includes "a system of surface irrigation comprising a main supply tank, a series of reservoirs, pipes connecting said tank and reservoirs" (lines 95-98). It is intended to allow for irrigating large and small plats of land simply and efficiently.
Date: October 12, 1920
Creator: French, Horatio Benjamin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well-Packer.

Description: Patent for an improved well drilling device called a "packer", in which this version has a reduced likelihood of the seals between separate parts being damaged and needing replacement.
Date: April 13, 1920
Creator: Fletcher, Harold W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Powder- Sprayer

Description: Patent for Insect Powder Sprayer. This sprayer allows the use of insecticide powder for use on animals, plants, and insects.
Date: November 30, 1920
Creator: Erwin, Samuel D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Roller-Bearing Swivel Wrench Plate.

Description: Patent for improvements on Roller-Bearing Swivel Wrench Plates, including illustrations. The goal of this invention is to make the plates more efficient "for use with any suitable fishing tool, or bit for use in oil fields or water well drilling" (lines 12-14).
Date: January 10, 1922
Creator: Harralson, Charles L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Fishing-Tool.

Description: Patent for improvements on the Fishing-Tool, including illustrations. The tool was improved in order to make the boring of wells using pipes more efficient.
Date: October 4, 1921
Creator: McMillian, John F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
Back to Top of Screen