Modular carrier for stair tread

Details Modular carrier for stair tread Modular carrier for stair tread

1984-03-21

1986-04-22

Murtagh, John E.

Static structures (e.g., buildings)

Frangible section or means

52105, 52182, 52741, 52748, E04F 1112

Patent

active

045833346

ABSTRACT:
A modular carrier for stair treads (15) is provided so that treads may be evenly spaced and hung between a pair of stringers (25, 25'). A pair of vertical side walls (16, 16') extend above the tread and have a mounting plate connected thereto lying in a plane which intersects the plane of the tread at a predetermined angle (.phi.). With the stringer set at this angle with respect to the horizontal, the treads lay in proper horizontal orientation. The plurality of notches or score lines are provided at the ends of the mounting plate (19, 20) which may be broken off, or overlapped, facilitating easy construction of evenly spaced stairs. Alternately, the left and right hand carriers are provided as separate units having a bottom plate 48 so that treads of varying widths may be used with the device.

REFERENCES:
patent: 1536636 (1925-05-01), Tappen et al.
patent: 3608256 (1971-09-01), Jefferys
patent: 3839840 (1974-10-01), Miller
patent: 3888058 (1975-06-01), Aherns
patent: 3978628 (1976-09-01), Turner
patent: 4089141 (1975-05-01), Heroux

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