Metal deforming – By deflecting successively-presented portions of work during... – With cutting of work or product
Patent
1978-06-05
1980-10-21
Combs, Ervin M.
Metal deforming
By deflecting successively-presented portions of work during...
With cutting of work or product
72171, 833563, 83917, B21D 514
Patent
active
042286727
ABSTRACT:
An apparatus for producing shaped metal objects such as collars for ventillating systems. The apparatus includes drive means for advancing a flat metal sheet past a rotary tool whereby notches are formed along one side of the sheet. The tool is provided with a stabilizing fitting and spring means to insure consistent notch forming. The notched sheet may be collected and formed into a rectangular configuration by other equipment or a removably attached sheet crimping and deflecting mechansim may be mounted in the path of movement of the notched sheet. This mechanism includes crimping rolls, and the deflecting means positioned beyond the crimping rolls operate to turn the sheet into a circular configuration whereby the product of the apparatus is automatically formed into a circular collar.
REFERENCES:
patent: 3157079 (1964-11-01), Harper
patent: 3180193 (1965-04-01), Benedict et al.
patent: 3186281 (1965-06-01), Wingen
patent: 3266090 (1966-08-01), Gosney
patent: 3427847 (1969-02-01), Harper
patent: 3621746 (1971-11-01), Womack
patent: 3982457 (1976-09-01), Berry
patent: 4115000 (1978-09-01), Mischo et al.
Gale Leo R.
Heilman Robert R.
Combs Ervin M.
The Lockformer Company
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