Metal deforming – By use of non-deforming work-gripping clamp and relatively... – By individually non-deforming clamps
Patent
1980-12-24
1982-03-23
Larson, Lowell A.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
By individually non-deforming clamps
72379, 428603, 52314, 52555, B21D 1310
Patent
active
043206484
ABSTRACT:
A method, and an apparatus for carrying out that method, for making roofing from a stretchable and deformable sheet material. The roofing sections are made from sheet material which has a preformed laterally sinu-soidal configuration which is reconfigured with longitudinally spaced steps (or folds). The finished sheet is a roofing section having the configuration of stepped tile roofing which is a substitute for true roofing tile. The sinu-soidal sheet is clamped (or pressed) in a tool between two adjacent pairs of complimentary shape clamping jaws. In that tool apparatus the two pairs of clamps are then moved relative to each in parallel paths normal to longitudinal and lateral planes through the sheet, which movement stretches the sheet to form a step (or fold) between the portions held in the two sets of clamps. More than two sets of pairs of tools can be used to simultaneously form multiple steps and alternatively the sinu-soidal sheet can be periodically shifted and step stretched in a continuous operation.
REFERENCES:
patent: 1226564 (1917-05-01), Miller
patent: 2670779 (1954-03-01), Mowrey
patent: 2901951 (1959-09-01), Hochfeld
patent: 3000423 (1961-09-01), Aris
patent: 3340719 (1967-09-01), Kandle et al.
patent: 4250728 (1981-02-01), King
LandOfFree
Method for making roofing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for making roofing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making roofing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1646707