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1. 发明授权

US3592294A Elevator 失效
标题翻译：电梯
公开(公告)号：US3592294A
公开(公告)日：1971-07-13
申请号：US3592294D
申请日：1968-12-06
申请人： MARION F ALLEN
发明人： ALLEN MARION F
IPC分类号： B66B9/16 , B66F9/02 , B66B9/06
CPC分类号： B66B9/16 , B66F9/02
摘要： A construction elevator including an elongated structural framework incorporating a pair of laterally spaced tracks upon which a material and personnel carriage operates. The framework is adjustable so as to extend between the ground and a construction platform located at varying heights above the ground through a variation in the angle of the framework. The carrier is angularly adjustable on the framework so as to assume a horizontal positioning thereof regardless of variations in the angle of inclination of the framework. A counterweight unit is engaged with the carrier and mounted within the framework for track-guided movement therealong in a direction opposed from the direction of movement of the carrier so as to act as a counterbalance therefor. The carrier and framework are so orientated as to allow free access to and egress from the carrier at both ground level and at the construction platform.

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