Resource Type

Combined Mail-Box and Door-Bell (open access)

Combined Mail-Box and Door-Bell

Patent for a combined mailbox and doorbell. The invention automatically sounds a bell when mail is placed inside that can be set up directly on the house or at a distance. The invention also serves to protect the mail from rain and mail thieves.
Date: July 9, 1918
Creator: McDonald, James A.
System: The Portal to Texas History
Combine Dimmer and Adjuster for Headlights (open access)

Combine Dimmer and Adjuster for Headlights

This patent is for the improvement of illumination and more particularly relates to a combined dimmer and adjuster for headlights. The primary aim is for the improvement of dimmers on the lamps of a motor vehicle so that the dimmers might be adjusted together with respect to the lamps so that various positions of vertical and horizontal adjustment are possible and if necessary, the removal of the cover of the lamps.
Date: April 9, 1918
Creator: Averitt, Robert W.
System: The Portal to Texas History
Advertising Device (open access)

Advertising Device

Patent for an advertising device meant to sit on a desk as a ruler. This device is designed to make the images on its surface appear to be suspended in air when it is lifted. It can be manufactured cheaply and is intended to be distributed for free as both a ruler and advertisement.
Date: April 9, 1918
Creator: Glisson, Amos Adolphus
System: The Portal to Texas History
Safety Starting Device for Internal-Combustion Motors (open access)

Safety Starting Device for Internal-Combustion Motors

Patent for the improved "Safety Starting Device for Internal-Combustion Motors (line 6-8)."
Date: April 9, 1918
Creator: Todd, James T. A.
System: The Portal to Texas History