Seattle, Wash.,--April 2.--(AP)--Automobiles that will hop into parking places, skip lightly uphill, and maybe jump over pedestrians, and tires that whistle when they go flat--these are some of the dreams of American inventors who gathered here today for their national congress.
    The hop, skip and jump automobile is supposed to become possible through a rotary wing invented by Eric Von Haven of Seattle. It was described as a powerful lifting device which would facilitate hill climbing and even make automobile flying a possibility. It works something like a helicopter.
    F. Y. Wyncoop of Denver submitted an automatic tire valve cap which toots a warning when air pressure is gone.

Source:

Unknown, "Auto That Jumps One of the Features at Inventors' Show," Chicago Daily Tribune, Tuesday, 3 April, 1934, Page 13.