343 Matching Results

Search Results

prev Results: 337 - 343

Apparatus for Projecting Motion-Pictures.

Description: Patent for an improvement to motion picture projectors that lowers the operating speed, thus reducing the amount of film needed for movies, and eliminates flickers in the projection. This patent includes instructions and illustrations.
Date: November 27, 1917
Creator: Craig, Richard M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Automobile Signal

Description: Patent for a signal of the nature indicated including a signal arm controlled in novel manner and movable from one position to another, the signal arm being inoperative in one position, and when moved to the other position being visible to other vehicles and pedestrians both in front and in rear, to warn them of the intention of the operator driver to turn.
Date: November 27, 1917
Creator: Deats, Oliver George
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Terracing-Machine.

Description: Patent for a terracing machine to provide a device to this character constructed in such a manner that farm land can be readily terraced to prevent the soil washing away. Other features are having the means for vertically adjusting either end of the terracing scraper and to allow the scraper to easily and quickly be adjusted into different angular relations to the draft tongue.
Date: November 27, 1917
Creator: Reese, Samuel L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Weeding-Plow.

Description: Patent for a weeding plow designed to remove weds and mellow the ground to assist with growing corn and cotton. It includes instructions and illustrations.
Date: November 27, 1917
Creator: Prohaska, Melichar
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
Back to Top of Screen