Hosptical stretcher with drop end

Claim 1

A MOBILE HOSPITAL STRETCHER COMPRISING A BASE MOUNTED ON WHEELS, UPRIGHTS MOUNTED AT EACH END OF SAID BASE EACH CONSISTING OF LATERALLY SPACED SUPPORT PLATES, SUPPORT PORTS VERTICALLY ADJUSTABLY MOUNTED ON SAID UPRIGHTS AND LATERALLY RETAINED THEREBETWEEN WITH ONE POST PIVOTALLY SUPPORTED AND THE OTHER SWINGABLY SUPPORTED TO SWING ABOUT THE PIVOTAL SUPPORT OF THE OTHER, CROSS BARS FIXEDLY CONNECTED TO THE TTOPS OF SAID POSTS AND HAVING LATERALLY SPACED GUIDES CONNECTED TO EACH END, ROLLERS FORMINGG TOP SUPPORTS MOUNTED BETWEEN SAID GUIDES BELOW THE UPPER ENDS OF THE GUIDES, A STRETCHER TOP HAVING A FRAME WITTH SPACED LONGITUDINAL SLIDE BARS ON ITS UNDERSIDE POSITIONED BETWEENN SAID GUIDES AND LONGITUDINALLY SLIDABLY SUPPORTED BY SAID ROLLERS; AND END CROSS MEMBER ON SAID FRAME, DEPENDING FIXED PIVOT SUPPORTS CONNECTED TO SAID END CROSS MEMBERBER AND AN INTERMEDIATE UNDERSIDE PORTION OF SAID FRAME AND DISPOSED ON EACH SIDE OF ONE OF SAID UPRIGHTS UNDERNEATH SAID TOP, A STRETCHER TOP FOOT EXTENSION HAVING AN EXTENSION FRAME WITH DOWNWARDLY AND FORWARDLY INCLINED BREAK JOINT ENDS ADJACENT THE ENDS OF SAID STRETCHER FRAME, MEANS FORMING A TRANSVERSE PIVOT CONNECTION BETWEEN THE ENDS OF SAID STRETCHER FRAME AND SAID EXTENSION FRAME ALIGNED WITH SAID BRAKE JOINT ENDS, A FIRST RIGID LINK PIVOTALLY CONNECTED BETWEEN SAID ONE UPRIGHT AND SAID EXTENSION FRAME AT POINTS SPACED FROM THE PIVOT BETWEEN SAID FRAME AND SAID FRAME EXTENSION, A TOGGLE LINK HAVING A LOWER BAR PIVOTED TO SAID FIXED PIVOT SUPPORT BELOW SAID RIGID LINK AND AN UPPER BAR PIVOTED TO SAID EXTENSION FRAME IN OUTWARDLY SPACED RELATION FROM SAID PIVOT CONNECTION BETWEEN SAID TOP FRAME AND SAID EXTENSION FRAME AND THE CONNECTION BETWEEN SAID FIRST LINK AND SAID FRAME EXTENSION, A PIVOT CONNECTING THE ADJACENT ENDS OF SAID BARS, A STOP ON ONE OF SAID BARS LIMITING MOVEMENT TO A SLIGHT OVER-CENTER LOCKING POSITION BETWEEN PIVOTS ON SAID UPRIGHT AND SAID FRAME EXTENSION WITH SAID FRAME EXTENSION IN ERECTED COMMUNICATION OF SAID STRETCHER FRAME, AND A RELEASE LEVER PIVOTED ON SAID FRAME EXTENSION AND ENGAGEABLE WITH THE UPPER BAR OF SAID TOGGLE LINK TO BREAK THE OVER-CENTER POSITION OF THE BARS OF THE TOGGLE LINK.