Fire escape – ladder – or scaffold – Platform with elevating or lowering means – Suspended
Patent
1993-08-02
1995-01-10
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Platform with elevating or lowering means
Suspended
182130, E04G 2100
Patent
active
053798600
ABSTRACT:
A carrier having (a) a frame having a middle portion transversely formed between two lateral portions attachable to and detachable from a layer of wall formed between two shutters, the lateral portions having a length more than twice as great as the height of the shutters and (b) a rectilinear elevator operatively linked to the middle portion of the frame so that the frame is slidable upwards and downwards by means of the elevator. The elevator moves itself upwards relative to the frame when the lateral portions of the frame are attached to a first layer of wall so that the frame carries workers who install shutters between which concrete is grouted for a second layer of wall. The elevator moves the frame upwards relative thereto when the second layer of wall solidifies so that the lateral portions of the frame can be detached from the first layer of wall and attached to the second layer of wall and that the elevator can move itself upwards relative to the frame. Thus, it is possible to grout concrete between shutters for higher layers of wall by repeating the above-defined steps.
REFERENCES:
patent: 1068442 (1913-07-01), Mills
patent: 1251066 (1917-12-01), McClanahan
patent: 3224065 (1965-12-01), Cheslein
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