Heating – Heating apparatus element having protective cooling structure – Conveyor – chute or work agitator element
Patent
1990-05-24
1991-10-15
Yuen, Henry C.
Heating
Heating apparatus element having protective cooling structure
Conveyor, chute or work agitator element
432246, 110246, 110276, 110281, F27D 300
Patent
active
050570110
ABSTRACT:
A furnace grate roller, mainly for incinerating refuse, with a tubular casing formed by rings of bars separated by blow gaps of set width, is of conventional structure, comprising a cylindrical cage framework with T-shape cross-section longitudinal members disposed along its generatrices and a casing formed of groups of rings separated by gaps for blowing combustion-supporting air. The rings are segmented into arcuate bars which extend between the longitudinal members. To limit relative movement of the bars while allowing them some play the bars are attached at one end by a notch to the flange of a longitudinal member and are secured in place by bosses on an intermediate member bolted longitudinally to the longitudinal member. The bars have recesses at their end contiguous with the intermediate member into which the bosses are inserted. In this way the bars are attached with limited capacity for movement relative to the roller in the axial, radial and peripheral directions.
REFERENCES:
patent: 1831816 (1931-11-01), Magrath
patent: 2501763 (1950-03-01), Denker et al.
patent: 3469544 (1969-09-01), Kremer
patent: 4320710 (1982-03-01), Steiner et al.
patent: 4537139 (1985-08-01), Esser
patent: 4610209 (1986-09-01), Temelli
de Freitas Jose
Le Lan Andre
Fours Picard
Yuen Henry C.
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