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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

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

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
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