181 Matching Results

Search Results

Results: 1 - 24 next

Boat-Propeller.

Description: Patent for a boat propeller, which is inexpensive and adaptable to small boats. The propeller can go forwards or backwards and use multiple oars.
Date: February 5, 1901
Creator: Caffey, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Elevator-Controller.

Description: Patent for improvements to elevator-controllers, related "to a hand-power rope-elevator equipped with electrical operating mechanism and means whereby the elevator may be quickly and effectually controlled either automatically or manually" (lines 11-15), including illustrations.
Date: February 5, 1901
Creator: Dubinski, Benjamin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
Back to Top of Screen