Apparatus for leveling trailers and the like

Claim 1

WHEEL ELEVATING AND SUPPORT APPARATUS, COMPRISING INCLINED RAMP MEANS HAVING OPPOSITELY PROJECTING BAR PORTIONS AT ITS UPPER INNER END, PLATFORM MEANS HAVING LATERALLY PROJECTING LOCKING KEY PORTIONS AT OPPOSITE SIDES, A PAIR OF FACING SUPPORT ELEMENTS EACH HAVING A PLURALITY OF VERTICALLY SPACED SOCKET OPENINGS ADJACENT ONE END EACH ADAPTED FOR RECEIVING A SAID PROJECTING BAR PORTION OF SAID RAMP MEANS TO SUPPORT THE UPPER INNER END OF SAID RAMP MEANS AT A PARTICULAR SELECTED LEVEL, SAID SUPPORT ELEMENTS EACH HAVING IN ITS FACE THE SAME PLURALITY OF VERTICALLY SPACED HORIZONTAL SLOT MEANS AS SAID PLURALITY OF SOCKET OPENINGS AND EACH SAID SLOT MEANS BEING DISPOSED AND ADAPTED TO RECEIVE AND SUPPORT A SIDE OF SAID PLATFORM MEANS AT A VERTICAL LEVEL CORRESPONDING TO ONE SAID SELECTED LEVEL OF THE UPPER INNER END OF SAID RAMP MEANS, SAID SUPPORT ELEMENTS EACH HAVING PERFORATION MEANS ASSOCIATED WITH EACH SAID SLOT MEANS TO RELEASABLY RECEIVE AND ENGAGE SAID LOCKING KEY PORTIONS OF SAID PLATFORM MEANS WHEN A SIDE OF SAID PLATFORM MEANS IS RECEIVED AND SUPPORTED IN ANY OF ITS SAID SLOT MEANS, WHEREBY A WHEEL MAY BE ELEVATED BY ROLLING UP SAID RAMP MEANS AND SUPPORTED IN ELEVATED CONDITION UPON SAID PLATFORM MEANS.