Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 313
Theoperation of the Cross HorizontalFolding Door is simplicity itself.To open or close, a slight pull onthe handles, up or down, is allthat is necessary; it pulls out inthe center and folds up over thetop of the opening on the jackknife principle. When closed, an L shaped auxiliary track attachedto… … Fig. 3. CROSS HORIZONTAL FOLDING DOORWood Construction, with diagram showing Economy of Space Used in Operating Continued on Next Page DOORS, SHUTTERS, ETC. 243 VARIETY MANUFACTURING COMPANY the wall, ^^hen the door is down, the wall is left clear and plain, without any projections or…
Building materials
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