Air nozzle for drying a fabric web supported on supporting means

Details Air nozzle for drying a fabric web supported on supporting means Air nozzle for drying a fabric web supported on supporting means

1973-11-12

1976-03-16

Dority, Jr., Carroll B.

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

34DIG13, 239560, F26B 1302

Patent

active

039436390

ABSTRACT:
An air nozzle for drying a fabric web supported on a supporting frame has a nozzle head which is arranged transversely in relation to the fabric web. This nozzle head has a number of rows of adjacent nozzle holes extending in the nozzle head direction and located on the side facing the fabric web. The blowing direction of the nozzle holes in the discharge direction of the air blast, from the nozzle center to the edges thereof, decreases in steepness from one row to the next. Nozzle holes located in the same row have the same cross-section, where the cross-section of the individual nozzle holes, measured from the center of the air nozzle to the nozzle edges, increases from row to row. The total cross-section of the nozzle holes of each row, however, is constant, and the distance of the nozzle holes from the point of impingement of the appropriate jet core, from the center of the air nozzle to the nozzle edges, progressively increases from row to row. The nozzle holes may be provided in a perforated plate which has a number of strips which are bevel-edged at different angles. One of the aforementioned rows of nozzle holes is located in a respective one of the strips.

REFERENCES:
patent: 1506414 (1924-08-01), Dashew
patent: 2254751 (1941-09-01), Paradise
patent: 2591621 (1952-04-01), Shegda
patent: 2709112 (1955-05-01), Curtice
patent: 3462851 (1969-08-01), Urbas et al.
patent: 3603512 (1971-09-01), Ham
patent: 3895449 (1975-07-01), Chance et al.

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