Helical staircase support

Abstract From the Canadian patent

A staircase support for a flying staircase of helical construction requiring attachment to the dwelling only at an upper and lower end thereof is disclosed. The support comprises a bracket including a first vertical tube and a second vertical tube axially spaced from the first tube and a horizontal member which extends from an upper portion of the first tube to a lower portion of the second tube. A plurality of identical brackets are assembled with a first bracket second tube upper end abutting a second bracket first tube lower end. In a preferred embodiment an expandable sleeve slidingly engages the abutting tubes and is expanded to fixedly engage adjacent brackets.