Retractable hood for transfer of coke

Details Retractable hood for transfer of coke Retractable hood for transfer of coke

1979-06-04

1980-07-22

Scovronek, Joseph

Distillation: apparatus

Apparatus

Elements

202262, 202227, 193 17, C01B 2704, B65G 1100

Patent

active

042138299

ABSTRACT:
This invention relates to an improved hood for transfer of coke which prevents binding of the retractable section when it is raised or lowered. The outer surface of the fixed hood section is of circular arc-shape and has at least one track extending therealong. A wheel assembly on the retractable section engages the track so as to guide the retractable section concentrically over the fixed section and prevent binding. Preferably the wheel assembly is outboard of the upper edge of the retractable section. A device is then provided to exert force on the wheel assembly toward the track so as to retain contact between the wheel and track as the retractable section is raised.

REFERENCES:
patent: 2219226 (1940-10-01), Gerber
patent: 3984289 (1976-10-01), Sustarsic et al.
patent: 4053068 (1977-10-01), Gidick
patent: 4083753 (1978-04-01), Rogers et al.
patent: 4113572 (1978-09-01), Manda et al.

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