use a mechanism permits the lower end of the ramp to be raised or lowered as will also be described referring to the left of fig2 and 3 a position loading means is provided at the elevated end beneath the frame lower portion including a pair of feet 27 these feet are connected by a pivot arm 28 to pivot connections 30 on the frame lower portion 71 see fig3 the feet may be raised or lowered by use of the piston 21 which is hydraulically connected to a pump 100 energized by a battery 102 and operated by controls 101 when the ramp has been positioned for use the piston is operated to lower the feet see the fig2 position it thus cannot roll out of position at the lower end a similarly structured slope adapting means is provided which includes piston 21 link arm 28 and pivot connection 30 roller means 29 are provided on the ower end link arm 28 actuation of piston and link arm combination 21 28 such as shown in fig2 causes upward movement of the lower end of the walkway it is thus seen that when in position the incline or slope of the walkway may be adjusted by raising or lowering the lower end for example if relatively heavy containers are to be rolled up the walkway the lower end is raised to adjust the angle of slope of this walkway the device.