Apparatus for the ventilation of the passenger space of rapidly

Ventilation – Elevator

Patent

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454254, F24F 1320

Patent

active

053062086

ABSTRACT:
An apparatus for ventilating the passenger space of a rapidly moving elevator car generates an air flow through the car during the travel of the car in an elevator shaft. A plurality of ventilation slots are provided one above the other and open to the passenger space of the elevator car and to a ventilation channel extending vertically in one wall of the elevator car. The total cross-sectional area of the ventilation slots is approximately twice as great as the cross-sectional area of the ventilation channel. The ventilation slots are formed by carrier slots in a sheet metal carrier on which a plurality of strips of a laminated material plate are attached on a passenger space side thereof and on which a perforated metal reinforcing plate is spot-welded on a rear side thereof. The reinforcing plate has rows of apertures formed in generally V-shaped grooves aligned with the ventilation slots. The grooves space the apertures from the carrier. The cross-sectional area of the apertures in any groove is at least equal to the cross-sectional area of the associated ventilation slot.

REFERENCES:
patent: 1872007 (1932-08-01), Reilly
patent: 2034723 (1936-03-01), Fitch
patent: 2265623 (1941-12-01), Bonsall
patent: 2305141 (1942-12-01), Crede
patent: 2350389 (1944-06-01), Coulton
patent: 2532268 (1950-11-01), Christmann
patent: 5080003 (1992-01-01), Kappeler

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