Load checking and positioning devices for automatic warehouse system

Claim 1

A LOAD CARRIER MOVEMENT BETWEEN DIFFERENT LOAD SUPPORT MEANS OF AN AUTOMATIC WAREHOUSING SYSTEM FOR TRANSFERRING A LOAD TO OR FROM ANY OF SAID SUPPORT MEANS, SAID CARRIER COMPRISING A MAIN FRAME; A HORIZONTALLY EXTENDIBLE EXTRACTOR CARRIED BY SAID MAIN FRAME AND MOVABLE HORIZONTALLY OUT OF SAID MAIN FRAME FOR TRANSFERRING A LOAD AT A LOAD SUPPORT MEANS; UPWARDLY DIRECTED GUIDE MEANS HAVING GUIDE SURFACES CARRIED BY SAID MAIN FRAME AND DISPOSED SYMMERTICALLY ON EITHER SIDE OF THE PATH OF MOVEMENT OF SAID EXTRACTOR AND EXTENDING UPWARDLY ADJACENT TO THE SIDES OF A LOAD BEING MOVED BY SAID EXTRACTOR; SAID GUIDE MEANS BEING TILTED IN THE DIRECTION OF SAID EXTRACTOR AND HAVING PORTIONS OF SAID SURFACES DIRECTED LATERALLY OUTWARDLY AWAY FROM EACH SIDE OF SAID EXTRACTOR AND A LOAD THEREON WHEREBY SAID GUIDE MEANS ON OPPOSITE SIDES OF SAID EXTRACTOR CONVERGE UPWARDLY AND TEND TO STRAIGHTEN AND CENTER TO LOAD THEREBETWEEN.