UNT Libraries Government Documents Department - 10 Matching Results

Search Results

Results: 1 - 10

Automatic Door-Closer

Description: Patent for improvements in automatic door closers with the object to simplify and improve the construction and utility of devices of this character. May be applied to doors of various sizes whereby the door may be caused to close without slamming or jarring.
Date: March 31, 1914
Creator: Grogan Edward W.
Item Type: Refine your search to only Patent

Automobile-Clutch.

Description: Patent for improvements to automobile clutches with the objectives of avoiding a jerky start, preserving integrity of friction surfaces, associating with anti-friction bearings to minimize load on motor, and producing an economical clutch.
Date: March 31, 1914
Creator: Bryant, Clarence R.
Item Type: Refine your search to only Patent

Railroad-Tie.

Description: Patent for a new railroad tie constructed of concrete material with detachable internal reinforcements used to support the rail fastening system, with illustrations.
Date: March 31, 1914
Creator: Baca, August
Item Type: Refine your search to only Patent
Back to Top of Screen