Method of making staircases and staircase made thereby

Details Method of making staircases and staircase made thereby Method of making staircases and staircase made thereby

1979-09-04

1982-04-06

Bray, W. D.

Static structures (e.g., buildings)

Stepped; e.g., stair

Tread unit on horizontal tread member connected to riser

52191, 144136B, 144309L, 144318, E04F 1100

Patent

active

043229271

ABSTRACT:
A method of making a closed-tread staircase, and of making steps for such a staircase. The tread and riser of each step are each made from a rebated, grooved slab; the rebates on tread and riser are mated to form a joint, which is secured by a joining strip of `V`-shaped cross-section formed with flanges which are forced into the slab grooves. Steps are joined together in the same manner, and a staircase formed by supporting a series of steps upon two or more stair carriages, each carriage comprising a stringer with a series of spaced cleats secured to one side. Each cleat provides a horizontal tread-supporting portion and a vertical riser-supporting portion. Each stair carriage may be made using apparatus which provides means for supporting and indexing a stringer and supporting each cleat at a predetermined angle while cleat and stringer are secured together.

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