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    • 21. 发明授权
    • Movable seating method
    • 可移动座椅法
    • US4162594A
    • 1979-07-31
    • US897546
    • 1978-04-18
    • Charles Mackintosh
    • Charles Mackintosh
    • E04H3/12
    • E04H3/126
    • A plurality of portable grandstand seating sections forming a grandstand are each provided with central ground-engaging wheels and footings, either of which being retractable and extendable for supporting each section alternately with the wheels and the central footings. A collapsible and extendable rear footing is also provided on each section. The sections are capable of being transported between grandstand and storage locations by towing them on the wheels with the rear footings collapsed. A first of such sections which forms an end section of the grandstand is lifted at the grandstand location and is shifted away from an adjoining section, the wheels are placed in a ground-engaging position, the rear footing is collapsed, the rearward end of the section is lowered relative to the wheels and the section is towed on the wheels while supporting the rearward end. The second and remaining sections are thereafter transported in succession to the storage location. When transporting the sections to the grandstand location, a section is rolled on the wheels while supporting its rearward end with the rear footing collapsed. The rearward end is raised at the grandstand location, the wheels are retracted or the central footing is extended and the rear footing is extended for supporting the section on both footings. It is then shifted into a predetermined position for commencing formation of the grandstand, and the remaining grandstand sections are transported in succession to the grandstand location with each being shifted in succession into abutting engagement with a side end of a previously transported section.
    • 形成正面展台的多个便携式正面看台座部分每个设置有中心的地面接合轮和基脚,其中任一个可收缩和可延伸,用于与轮和中心基脚交替地支撑每个部分。 每个部分还设有可折叠和可延伸的后底脚。 这些部分能够在正面看台和存储位置之间通过在后轮塌陷的情况下将它们拖到车轮上。 形成正面看台的端部的这种部分中的第一个在正面看台位置处被提升并且从相邻部分移开,轮被放置在地面接合位置中,后部基脚被折叠, 部分相对于轮子降低,并且该部分在支撑后端的同时被牵引在车轮上。 其后的第二部分和其余部分随后被运送到存储位置。 当将区段运送到正面看台位置时,一个区段在车轮上滚动,同时支撑其后端,后部底脚塌陷。 后端在正面看台位置被抬起,轮子缩回或者中心的基脚伸长,并且后底部被延伸以支撑两个基脚上的部分。 然后将其移动到用于开始形成正面看台的预定位置,并且剩下的正面展台部分被连续地运输到正面展台位置,其中每个展台位置被连续地移位成与先前传送的部分的侧端邻接。
    • 22. 发明授权
    • Track switching arrangement
    • 跟踪切换安排
    • US4152992A
    • 1979-05-08
    • US847066
    • 1977-10-31
    • Charles Mackintosh
    • Charles Mackintosh
    • E01B25/00E01B25/06E01B25/26
    • E01B25/00
    • A switching arrangement for an elevated track having upper and lower rails includes a pair of first upper and lower switch beams at a switching interruption along the track, the beams being movable from a position of rail alignment with the upper and lower rails to a position shifted toward on another. For switching a rail vehicle to a secondary track, a pair of second upper and lower switch beams are provided at the switching interruption for movement toward and away from one another between a position out of rail alignment with the upper and lower rails to a position into alignment therewith when the first beams are shifted toward one another.
    • 用于具有上轨道和下轨道的升降轨道的切换装置包括沿着轨道的切换中断的一对第一上和下开关梁,所述梁可从与上轨道和下轨道的轨道对准的位置移动到位移 朝另一个 为了将轨道车辆切换到次级轨道,在切换中断处设置一对第二上部和下部开关梁,以在与上部轨道和下部轨道的轨道对准之间的位置之间朝向和远离彼此移动到位置 当第一光束彼此偏移时对准。