| 摘要 |
<p>A moving staircase (escalator) with two flights of steps (1, 1' ), a first flight for reseting one foot and a second flight for resting the other foot, equipped with synchronized reciprocating motion so that when the first flight goes up the second one goes downby the pace corresponding to a step,-the user,by alternating the resting foot onto the steps of the two flights, will make no effort in waiting along it and he/she will not have to bend the limbs. The elevator finds its elective application as emergency escalator, also as fire -figthing staircaise and as moving staircase for users prevented from an ease moving of limbs. The escalator can alsoconveniently be rested onto pre-exiting flights.</p> |
