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Spirometer

Description: Patent for "an improved spirometer, and has for its object to provide a simple, inexpensive, and efficient device of this character adapted for use by invalids, convalescents, and other persons for exercising the lungs and measuring and indicating the cubic capacity or volume of air expelled from the chest." (lines 8-15)
Date: August 4, 1903
Creator: Lyttleton, Henry Thomas
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Draft Rigging for Railway Cars

Description: Patent for draft rigging for use with railway cars. It is designed to "provide a simple and comparatively and to provide a simple and comparatively inexpensive draft mechanism of great strength and durability adapted to be readily applied to the framework of a car and capable of effectively cushioning the car-coupling and of relieving the body of a car of shocks and strains" (line 12-18). Illustrations included.
Date: August 4, 1903
Creator: Saling, Thomas W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Ever-Level Table.

Description: Patent for tables designed for trains or ships where it is important for maintaining the table top constantly level. It allows for the top to be held constantly level and for maintaining its position without sudden movement or causing overbalancing.
Date: July 4, 1911
Creator: Etheridge, Thomas H., Jr.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Headlight.

Description: Patent for a headlight that turns with a cars body and will not accidentally turn from bumps.
Date: July 4, 1911
Creator: Bell, Robert A. & McKiel, James B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

[Portrait of Weisman]

Description: Portrait of Weisman, seated atop a fabric-covered chair, wearing a light-colored gown. The back of the photograph has intricate designs of foliage, stars, and scrolls. A hand written note on the back reads, "Henry Landsfield's [tentative] son Weisman, 3 mo. old, July 4 / 94."
Date: July 4, 1894
Creator: Bruce & Corti
Item Type: Refine your search to only Photograph
Partner: Private Collection of T. B. Willis
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