Load-equalizing device for trailers

Claim 1

FOR USE WITH A TRUCK BODY HAVING A PLURALITY OF TRANSVERSELY EXTENDING FLOOR-SILLS, A LOAD-EQUALIZING DEVICE COMPRISING A PLURALITY OF SLIDE-RAILS ADAPTED TO BE MOUNTED ON THE UNDER SIDE OF THE FLOOR-SILLS LENGTHWISE OF THE TRUCK BODY ADJACENT TO THE OUTER LONGITUDINAL SIDE MARGINS OF THE TRUCK BODY, SAID RAILS EACH CONSISTING OF TWO SPACED PARALLEL HORIZONTAL MEMBERS VERTICALLY CONNECTED BY A PLURALITY OF SPACED BLOCK-LIKE ELEMENTS FORMING A PLURALITY OF RECTANGULAR APERTURES, A PLURALITY OF TRANSVERSELY EXTENDING CROSS-SILLS HAVING A LENGTH SUBSTANTIALLY EQUAL TO THE TRANSVERSE WIDTH OF THE TRUCK BODY, LONGITUDINALLY EXTENDING SLIDE-CHANNELS MOUNTED ON AND EXTENDING BETWEEN THE CROSS-SILLS ADJACENT THE OUTER ENDS THEREOF IN VERTICAL ALIGNMENT WITH THE SLIDE-RAILS, SLIDE BEARING MEANS CARRIED BY THE SLIDE-CHANNELS FOR SLIDING SUPPORTIVE ENGAGEMENT WITH THE SLIDE-RAILS, AUXIALIARY BEARING MEANS MOUNTED ON THE SLIDE-CHANNELS FOR UPWARD SHIFTING MOVEMENT IN RELATION THERETO, AND BEING ADAPTED, WHEN IN UPWARDLY SHIFTED POSITION, FOR LIFTING THE SLIDE-RAILS AND SUPPORTING THEM FOR LONGITUDINAL SHIFTING MOVEMENT, MEANS FOR OPTIONALLY ELEVATING AND LOWERING THE AUXILIARY BEARING MEANS, AND MEANS FOR LOCKING SAID SLIDE-RAILS TO THE SLIDECHANNELS IN ANY ONE OF A PLURALITY OF RELATIVELY SHIFTED POSITIONS, SAID LAST-NAMED MEANS CONSISTING OF A PLURALITY OF PINS WHICH ARE LOCATED OUTWARDLY OF SAID SLIDE-RAILS WHEN NOT IN ENGAGEMENT THEREWITH, SAID PINS BEING RECTANGULAR IN SHAPE AND HAVING BEVELED INWARDLY PRESENTED FACES.