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Adding-Machine

Description: Patent for "an adding-machine which, while being constructed of but comparatively few parts, will be so adjusted as arranged as to allow an operator to make rapid and correct calculations; furthermore, to produce an adding-machine in which the operator will be enabled to detect immediately any mistake which he may have made, and, finally, to produce a simple, efficient, and effective adding-machine" (lines 13-22).
Date: June 25, 1889
Creator: Stinson, James C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Hub for Vehicle Wheels.

Description: Patent for a new and improved wheel-hub. This design "has for its object the provision of a simple and effective separable hub composed of the fewest possible number of parts and capable of resisting strain in every direction. [The] hub is made with a central box for receiving the axle spindle, and having a central enlargement or collar on its outer side. The two body portions of the hub are set upon the box and fit up against the collar. They are provided on their opposing faces with lugs, whi… more
Date: June 25, 1889
Creator: Clark, Edward D. & Clark, Simmion C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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