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Swartz's propeller patent model

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Swartz's propeller patent model
Photo by Hugh Talman, Negative #: 2006-23041

IN CONTEXT

This object appears in the following sections:


Technology
Marine Patent Models — Complete Catalog: 1851-1869

Technology
Marine Patent Models — Who's Inventing?

Technology
Marine Patent Models — Moving Forward

OTHER VIEWS
Swartz's propeller patent model
Swartz's propeller patent model


Swartz's propeller patent model
Swartz's propeller patent model


Patent drawing for Swartz's propeller
Patent drawing for Swartz's propeller


Ad for the Swartz Iron Works, Buffalo, N.Y.
Ad for the Swartz Iron Works, Buffalo, N.Y.

RELATED OBJECTS
Screw propeller


Propeller blade patent model
In collection
From the Smithsonian Collection

George W. Swartz received a patent for a propeller-blade design in 1857. This model, submitted to the Patent Office with his application, demonstrates his proposal to use three of his blades together to form a complete propeller. Although his specification describes in detail the propeller's geometry, it does not give any clue why Swartz felt these blades were an improvement over other designs then known.

Physical Description

The model is made of brass, painted red. It is mounted to a wooden stand using metal brackets and measures 5" L x 4" W x 4" H.

Details
Date Made:
1857
Locations:
New York
Note:
Buffalo
Credit:
Presumed to be a transfer from the U.S. Patent Office
History

George Swartz was co-owner of the Swartz Iron Works in Buffalo, New York, a maker of boilers, steam engines, and architectural iron work. In addition to the patent represented by this model, he received two other patents, both for propeller canal boats (nos. 17,592, June 16, 1857 and 19,656, March 16, 1858).

Ref:

George W. Swartz, Propeller Blade, U.S. patent no. 17,943, Aug. 4, 1857.

The Commercial Advertiser Directory for the City of Buffalo, 1857.


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