UNT Libraries Government Documents Department - 11 Matching Results

Search Results

Aeroplane.

Patent for improved propulsion for airplanes involving propellors in the front and rear of the plane. This aids in regulating air currents to stabilize flight, landing and speed. The patent includes illustrations.

Date: June 12, 1917

Creator: Campbell, John R.

Automobile Signal

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, O.G.

Case for Rural-Mail Carriers.

Patent for a device to enable rural mail carriers to efficiently carry and store postal items for sale. The storage unit (device) is water-resistant to protect the items inside from inclement weather while delivering mail.

Date: April 24, 1917

Creator: Campbell, Guy

Ceiling-Plate.

Patent for improvements to ceiling plates that allow a ceiling plate through which a pipe passes to remain securely attached to the ceiling (or other surface) even while the pipe expands or contracts.

Date: June 19, 1917

Creator: Donnelly, John R.

Demountable Rim and Felly Band

Patent for Demountable Rim and Felly Band

Date: May 1, 1917

Creator: Stephens, Charles D. & Bachman, Joseph A.

Exhibitor

Patent for device which would allow motorists to display road maps in their vehicle while driving. Would also include a light so maps could be visible at night.

Date: August 14, 1917

Creator: Atkinson, Jackson B.