| 摘要 |
A seat for high erection workers working on large horizontal I-beams is formed with a seat for a worker and particularly a welder at one end of a leverage arm and a friction plate at the opposite end with a clamping point provided by a clamp the ends of which are positioned near one end and on either side of the friction plate and providing a fulcrum point near the end of the leverage arm for urging the friction plate into secure contact with the underside of a flange of a horizontal I-beam. The seat is constructed of light metals and preferably is provided with a lanyard which doubles as a safety tie during use and a carrying strap by which the high-rise working seat may be transported.
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