Slide display

Claim 1

A back panel having a fold line thereacross in the central zone defining a first portion and a second portion on opposite sides respectively of the fold line and including, a strip zone included in the first portion parallel to the fold line with one edge of the strip zone being closely adjacent the fold line, the strip having a plurality of aligned spaced windows therealong and a retainer means to hold a piece of film in each of the windows, a viewing box comprising a first and a second side wall in spaced parallel relation with an upper edge and a lower edge and comprising a roof having a first end and a second end spanning the upper edges of the side walls, said roof having a plurality of viewing openings in registry with the windows of the strip zone, means connecting the lower edges of the side walls to the back panel along the strip edges, a slide on the box and including a magnifying means and guide track means connecting the slide for longitudinal movement across the box between the first and second end of said roof, a pull member having a first end and a second end, the first end of said pull member being connected to the first side wall of said box and said first side wall being adjacent said fold line and the second end being connected to the second portion of said back panel, hinge means at the connection of said pull member and said first side wall and said back panel and hinge means included in said means connecting the lower edges of said side wall to said second portion of the back panel, the length of the pull member and the distance between (a) the first side wall of the box at the connection of the pull member and the said first side wall and (b) the second portion of the back panel being a ratio such that the angle opposite the length of the pull member is about 90°. whereby the box is adapted to collapse when the back panel is folded along the fold line and the box is adapted to be erected with the first and second side wall in perpendicular relation to the first portion of the back panel when the portions of the back panel are in a parallel plane.