Structural improvements for stairs or stairs with variable geome

Details Structural improvements for stairs or stairs with variable geome Structural improvements for stairs or stairs with variable geome

1977-08-08

1978-11-14

Bell, J. Karl

Static structures (e.g., buildings)

Stepped; e.g., stair

Interconnected relatively movable components

E04F 1106

Patent

active

041249577

ABSTRACT:
The present invention relates to staircase structures and in particular provides a staircase structure in which the components may be substantially prefabricated and erected on site. Standardized components are generally used whereby labor is minimized while the staircase is adjustable for various slopes. The structure basically comprises a pair of stringers, each formed of upper and lower shafts which are movable longitudinally with respect to each other and can be spaced apart. Tread supporting members extend between the upper shafts and lower shafts for receiving the tread members.

REFERENCES:
patent: 624782 (1899-05-01), Fuchs
patent: 2245825 (1941-06-01), Ross
patent: 3885365 (1975-05-01), Cox
patent: 3962838 (1976-06-01), Cox

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