Stairs and method of making the same

Static structures (e.g. – buildings) – Stepped; e.g. – stair – Tread unit on horizontal tread member connected to riser

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52191, 52741, E04F 1100

Patent

active

043676138

ABSTRACT:
A construction for wooden stairs that permits standardized, factory machined components to be pre-packaged and shipped to the job site where they can be installed to fit almost any installation. The structure includes stringers which have riser and tread receiving grooves on both sides. The grooves on each side of the stringer provide for a different rise and run rate. The construction technique and the resulting stairs substantially reduces the job-site layout and assembly time from that required with conventional stairs. It also reduces the number of components that must be produced and stocked. The technique is especially applicable when employed with wooden stairs of the interlocking type that generally need no fasteners, adhesives or wedges.

REFERENCES:
patent: 1893876 (1933-01-01), Anderson
patent: 3393481 (1968-07-01), Meuret
patent: 4124957 (1978-11-01), Poulain
patent: 4154032 (1979-05-01), Strub

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