Conveyors – chutes – skids – guides – and ways – Skidways – Retarder
Patent
1983-07-07
1985-07-23
Nase, Jeffrey V.
Conveyors, chutes, skids, guides, and ways
Skidways
Retarder
B65B 1120
Patent
active
045304289
ABSTRACT:
A steel pipe transporting apparatus and a method for controlling the same wherein the apparatus includes a plurality of said rails slantingly arranged from a feed-in end to a feed-out end so as to enable transportation of the steel pipe by causing the steel pipe to roll down on the skid rails from the feed-in end to the feed-out end. A plurality of electromagnets are arranged along the skid rails from the feed-in end to the feed-out end and each of the electromagnets include an inner pole with an exciting coil wound thereon and a pair of outer poles. The pair of outer poles have an upper end connected with a skid rail and a lower end connected with a common base, the inner poles having a lower end connected to the common base and an upper end arranged so as to face the steel pipe when transported on the skid rails so that the upper end portions of the inner poles are magnetically separated from each other. The electromagnets are divided into a plurality of groups and an exciting current is applied to the electromagnets group by group in order so as to cause the steel pipe to roll down along the skid rails.
REFERENCES:
patent: 3882981 (1975-05-01), Izumidate et al.
patent: 4088213 (1978-05-01), Nakamura et al.
patent: 4191286 (1980-03-01), Sato et al.
Aoshima Masaru
Itoh Susumu
Sato Katsutoshi
Hitachi , Ltd.
Nase Jeffrey V.
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