Means for transporting and positioning a worker

Claim 1

A VEHICLE FOR MOVING AND POSITIONING A WORKER, SAID VEHICLE COMPRISING: A CHASSIS; A FIRST POWER-DRIVEN MEANS FOR PROPELLING SAID CHASSIS SELECTIVELY FORWARD OR BACKWARD AND FOR SUPPORTING ONE END THEREOF; A PAIR OF WHEELS FOR STEERING SAID CHASSIS AND SUPPORTING THE OTHER END THEREOF; A SUPPORT FOR A WORKER, AND SUPPORT CARRIED BY SAID CHASSIS AND MOUNTED THEREON FOR VERTICAL RECIPROCAL MOVEMENT; A SECOND POWER-DRIVEN MEANS CONTROLLABLE FROM SAID SUPPORT FOR TURNING THE GENERAL PLANE OF SAID STEERING WHEELS IN EITHER OF TWO DIRECTIONS; A SEAT CARRIED BY SAID SUPPORT; A FORKED LEVER PIVOTALLY MOUNTED BACKWARD IN RESPONSE TO THE MOVEMENT OF SAID FORKED FOR APPLYING POWER TO SAID FIRST POWER-DRIVEN MEANS TO MOVE SAID VEHICLE FORWARD IN RESPONSE TO THE MOVEMENT OF SAID FORKED LEVER IN ONE DIRECTION AND FOR MOVING IT BACKWARD IN RESPONSE TO THE MOVEMENT OF SAID FORKED LEVER IN AN OPPOSITE DIRECTION AND FOR AUTOMATICALLY APPLYING A BRAKING ACTION AGAINST EITHER FORWARD OR BACKWARD MOVEMENT WHEN SAID POWER IS REMOVED; AND MEANS CARRIED BY SAID SUPPORT FOR SELECTIVELY MOVING SAID SUPPORT IN EITHER OF TWO OPPOSITE VERTICAL DIRECTIONS UNDER POWER AND FOR APPLYING A BRAKING ACTION AGAINST EITHER UPWARD OR DOWNWARD MOVEMENT OF SAID SUPPORT WHEN THE POWER IS REMOVED THEREFROM.