B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
214/4
B66F 9/18 (2006.01)
Patent
CA 1041954
VACUUM LIFTING APPARATUS FOR CYLINDRICAL ARTICLES ABSTRACT OF THE DISCLOSURE Lifting apparatus including two pairs of opposed backing plates of curved cross section mounted for horizontal swinging movement, each plate being mounted for horizontal and vertical swinging movement. Each backing plate has a resilient seal secured thereto in the form of a continuous pneumatic tube which projects outwardly from the plate to form a cushion and a seal, and is arranged with side sections and end sections forming a suction space. When each pair of plates is moved against a cylindrical article, suction is applied to the suction space bounded by the pneumatic tube to draw the article against the latter. This also draws the article against vertical friction plates on each backing plate and located adjacent side sections of the pneumatic tube thereof.
257943
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