Fire escape – ladder – or scaffold – Means maintaining platform level on angularly movable support – Swingable support
Patent
1978-10-02
1980-04-01
Zugel, Francis K.
Fire escape, ladder, or scaffold
Means maintaining platform level on angularly movable support
Swingable support
182129, 297277, 297349, E04G 100
Patent
active
041957083
ABSTRACT:
The chair is suspended from a elevated aerial ladder and hangs by gravity in a stable manner. The stability enables a worker, such as a sign painter, to be seated while performing his task without being disturbed by tilting and swaying. The stability is due to suspending the chair from a point well above the worker's head which causes the chair to hang stably. The worker can change the direction in which the chair faces by releasing a latch and manually swivelling the chair to a desired direction where he then holds it by reengaging the latch. No power or hydraulic devices are required in achieving the vertical stability nor the swivelling and latching in desired directional position. Therefore the chair is useful on a simple aerial ladder or other type of aerial lift.
REFERENCES:
patent: 715668 (1902-12-01), Kiddie
patent: 2692168 (1954-10-01), Gregory
patent: 2821312 (1958-01-01), Wiegel
patent: 2845990 (1958-08-01), Hubert
patent: 3039561 (1962-06-01), Edwards
patent: 3039819 (1962-06-01), Williams et al.
patent: 3203503 (1965-08-01), Smith et al.
Brown, Sr. Edward L.
Zugel Francis K.
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