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Pump-Plunger

Description: Patent for a pump-plunger, concentrating on advancements in the design, particularly catering to deep well operations and environments with challenging conditions, such as oil and water wells where fluids are mixed with sand, sediment, or debris.
Date: October 18, 1921
Creator: Miller, Frank J.
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Partner: UNT Libraries Government Documents Department

Engine.

Description: Patent for a new engine designed to maximize power output by using a single crank's bearing surface and increase the crank power without lengthening the piston travel.
Date: October 18, 1921
Creator: Ingram, Joseph D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Corn-Planter.

Description: Patent for improvement of corn-planters, with illustrations. The purpose of this corn-planters patent was to improve existing corn-planters through, "peculiar construction and combination of devices, that will be more fully set forth hereinafter, and particularly pointed out in the claims" (lines 9-12).
Date: October 18, 1887
Creator: Koepke, William
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Partner: UNT Libraries Government Documents Department

Corn Planting Attachment for Plows.

Description: Patent for a new and improved corn-planting attachment for plows. This design "consists in the improved construction and combination of parts of such an attachment, which may be secured to the rear end of the beam of a common breaking-plow, having a wheel running in the furrow operating the dropping mechanism" (lines 22-28).
Date: October 18, 1887
Creator: Aten, Frank L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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