Built-up rail post by which the steps of spiral stairs are connected with the hand rail, and components of such rail post

Claim 1

An inclined handrail support arrangement comprising an elongated metallic load-bearing cylindrical core, said elongated load-bearing core being threaded for its entire length, a plurality of tubular covering elements with each tubular covering element having a top end and a bottom end, each of said tubular covering elements having an elongated internal bore, the internal bore of each of said tubular covering elements having a diameter slightly larger than the diameter of said load-bearing core, the load-bearing core passing through the internal bore of each of said tubular covering elements, a first tread, the bottom end of the lowermost of said tubular covering elements supported on said first tread, a second tread higher in elevation than said first tread, the bottom end of the next lowest of said tubular covering elements being supported on said second tread, said next lowest of said tubular covering elements and all of said tubular covering elements thereabove being in a stacked relation with respect to each other with the bottom end of certain of said tubular covering elements above said next lowesT tubular covering element being in contact with the top end of the tubular covering element immediately therebelow, a counterbore located at the end of each of said tubular covering elements which is in contact with another of said tubular covering elements, a plurality of threaded bushes screwed on the load-bearing core, each threaded bush resting on the upper end of one tubular covering element and received in the counterbore at the upper end thereof and also being received in the counterbore at the lower end of the next higher tubular covering element, a flange metal bush being screwed on to the lower end of the load-bearing core, and an inclined handrail being secured to the uppermost tubular element.