Page:Popular Science Monthly Volume 89.djvu/905

 Increase the Usefulness of the Motor Vehicle

The buggy carries not a tail-light but a reflecting prism, which sends back the light from the lamps of vehicles behind it

Below: Not a dimmer but an intensifier of the light on a road

—POINT BEYOND FOCAL POINT DOWNWARD GLARE RAYS WHICH* ARE NOT ELIMINATED BECAUSE THEY POINT TOWARD GROUND AND NOT IN EYES OF OTHER DRIVERS

UPWARD GLARE RAYS ELIMINATED BY SHIELD

PARABOLIC REFLECTOR

At right: A three-section garage door which slides around a corner on a track Below: Portable loaders mounted on wheeled frameworks for unloading freight

Below: A grease and oil gun that requires no screwing, air pockets or paddles. The gun is loaded by removing the lower cap and filling it