Patent ID: 8793861
Filing Date: 2014-08-05
Classification: B21D,B63B,E04F,E04H,Y10T

Abstract:
1. A method for manufacturing an outer rail configured to connect to a platform structure, the method comprising: providing a first piece of tubular metal configured to be the outer rail, the first piece of tubular metal comprising: cutting the first piece of tubular metal to define a left indentation between a left portion and a middle portion of the first piece of metal; cutting the first piece of tubular metal to define a right indentation between the middle portion and a right portion of the first piece of tubular metal; folding the left portion with respect to the middle portion at the left indentation; folding the right portion with respect to the middle portion at the right indentation; attaching the first connecting portion to the platform structure at a first location so that the left portion is attached to the platform structure; and attaching the second connecting portion to the platform structure at a second location so that the right portion is attached to the platform structure, wherein the first location is separate from the second location.