Siding panels and the method of production
AssigneeAlcan Aluminum Corporation
InventorsAlexander A. Chalmers, J. Lynn Gailey, Carl A. Wollam
Life of this patent
Estimating the term…
Abstract
A horizontally elongated sheet metal siding panel simulating the appearance of a row of shake-type wooden shingles is produced by forming, in the panel, alternating raised and depressed shingle-simulating portions having surfaces lying in spaced parallel planes and separated by narrow portions that taper upwardly as viewed in projection in the surface planes of the shingle-simulating portions.
Claims15
Procedure for producing, from a string of ductile sheet material, a siding panel having a major surface configuration simulating a row of wooden shingles, comprising, in combination, the steps of:
- (a) forming the strip for producing alternating raised and depressed portions thereof having extended surfaces respectively lying in spaced parallel planes and each extending upwardly from the bottom edge of the strip across substantially the full width thereof, adjacent ones of said raised and depressed portions each being of sufficient width to simulate adjacent wooden shingles;
- and
- (b) simultaneously forming the strip for producing portions thereof extending obliquely between adjacent raised and depressed portions, each of said obliquely extending portions being substantially narrower than the raised and depressed portions and having a surface with a slope, relative to the surface planes of the raised and depressed portions, that increases progressively in an upward direction, and each of said obliquely extending portions tapering upwardly as viewed in projection in a plane parallel to the surface planes of the raised and depressed portions for producing an appearance of downward divergence of the surface planes of the adjacent raised and depressed portions respectively lying on opposite sides thereof.
Procedure for producing, from a metal strip, a siding panel having a major surface configuration simulating a row of wooden shingles, comprising, in combination, the steps of:
- (a) forming the strip for producing, in the upper portion and at the lower longitudinal edge of the strip respectively, an outwardly projecting longitudinal lip and an inwardly projecting longitudinal flange for interlocking with the lip of another panel;
- (b) thereafter forming the strip for producing alternating raised and depressed portions thereof having extended surfaces respectively lying in spaced parallel planes and each extending from the flange to the lip, adjacent ones of said raised and depressed portions each being of sufficient width to simulate adjacent wooden shingles;
- and
- (c) simultaneously forming the strip for producing portions thereof extending obliquely between adjacent raised and depressed portions, each of said obliquely extending portions being substantially narrower than the raised and depressed portions and having a surface with a slope, relative to the surface planes of the raised and depressed portions, that increases progressively in an upward direction, and each of said obliquely extending portions tapering upwardly as viewed in projection in a plane parallel to the surface planes of the raised and depressed portions for producing an appearance of downward divergence of the surface planes of the adjacent raised and depressed portions respectively lying on opposite sides thereof.
Procedure for forming ductile sheet material to produce in a single integral sheet a surface appearance simulating plural adjacent surfaces lying in divergent planes, comprising, in combination, the steps of:
- (a) working a sheet of ductile material for forming therein adjacent raised and depressed sheet portions having extended surfaces respectively lying in spaced parallel planes and;
- (b) simultaneously forming the sheet for producing portions thereof extending obliquely between said raised and depressed portions, each of said obliquely extending portions being subtantially narrower than the raised and depressed portions and having a surface with a slope, relative to the surface planes of the raised and depressed portions, that increases progressively along its length, and each of said obliquely extending protions, as viewed in projection in a plane parallel to the surfaces of the raised and depressed portions, tapering progressively along its length in the direction of increasing slope of its surface for producing an appearance of divergence of the surface planes of adjacent raised and depressed portions respectively lying on opposite sides thereof.
A horizontally elongated ductile sheet siding panel having a major surface configuration simulating a row of wooden shingles, said panel including
- (a) a longitudinal upper margin attachable to a wall in substantially flush relation thereto;
- (b) a longitudinal lower margin bent inwardly to constitute a flange for supporting the lower part of the panel in outwardly spaced relation to a wall when said upper margin is attached to the wall;
- and
- (c) a continuous web extending between the upper and lower margins over the full horizontal length of the panel and sloping downwardly and outwardly from said upper margin to said lower margin, said web having an outwardly facing major surface;
- wherein the improvement comprises:
- (d) said web comprising a plurality of raised shingle-simulating portions and a plurality of depressed shingle-simulating portions disposed in alternating relation along the length of the web, said raised and depressed portions having extended surfaces respectively lying in spaced parallel planes, each of said raised and depressed portions extending upwardly from the lower margin of the panel across substantially the full width of the panel, adjacent ones of said raised and depressed portions each being of sufficient width to simulate adjacent wooden shingles;
- and
- (e) said web further comprising narrow, vertically oriented web portions extending obliquely between adjacent raised and depressed portions, each of said obliquely extending portions having a surface with a slope, relative to the surface planes of the raised and depressed portions, that increases progressively in an upward direction, and each of said obliquely extending portions tapering upwardly as viewed in projection in a plane parallel to the surface planes of the raised and depressed portions for producing an appearance of downward divergence of the surface planes of the adjacent raised and depressed portions respectively lying on opposite sides thereof.
A method of creating, in a major surface of a sheet of ductile material, a visual illusion of plural adjacent surfaces lying in divergent planes without substantially altering the relative lengths of opposite edges of the sheet, thereby to prevent cambering of the sheet, said method comprising disposing adjacent extended surface portions of the sheet in spaced, substantially parallel plane while separating the adjacent extended surface portions by sheet portions extending obliquely therebetween, each of the obliquely extending portions being substantially narrower than the extended surface portions;
- and progressively varying the slope of each said obliquely extending portion, relative to said parallel planes, along the length of each said obliquely extending portion while progressively tapering each said obliquely extending portion along its length, as viewed in projection in a plane parallel to the surfaces of said extended surface portions, in the direction in which its slope increases.
Dependencies are inferred from the claim text.