Conveyors: power-driven – Conveyor section – Screw
Patent
1977-07-21
1978-12-05
Smith, Robert I.
Conveyors: power-driven
Conveyor section
Screw
138163, 198671, B65G 6546
Patent
active
041281608
ABSTRACT:
A vertical joint structure is shown extending longitudinally of a generally cylindrical housing encasing a screw conveyor for a breading machine or the like. The housing comprises two generally C-shape half portions formed of sheet metal and assembled by means of a novel joint structure along two longitudinal zones diametrically opposite in the housing. One half portion is fixed in the machine and the other half portion is movable toward and away from a tight fit of the joint structure with the fixed half portion. The distal edges of the movable C-shape half portion extend a short distance beyond a diameter of the housing at approximately a right angle to that diameter and are there bent downwardly and outwardly at an acute angle to a zone just at, or a little beyond, that diameter and there bent outwardly approximately radially of the cylindrical housing. This forms a first linear sealing surface at the acute angle portion. The distal edges of the fixed C-shape half portion approach the first linear sealing surface outside thereof and parallel to the same acute angle to a zone close to the first mentioned zone and are there bent outwardly parallel to the previously mentioned radially extending portions of the movable half portions. This forms a second linear sealing surface parallel to the first linear sealing surface. An arrangement is provided to clamp the two sealing surfaces tightly together.
REFERENCES:
patent: 275153 (1883-04-01), Craik
patent: 1030298 (1912-06-01), Haines
patent: 3197016 (1965-07-01), Jones
patent: 3765547 (1973-10-01), Shivvers
Deal Douglas O.
Morley Robert C.
Sam Stein Associates Inc.
Smith Robert I.
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