Metal working – Method of mechanical manufacture – Converting
Patent
1991-02-19
1991-12-24
Eley, Timothy V.
Metal working
Method of mechanical manufacture
Converting
29432, 29525, 295251, B21K 2116
Patent
active
050740229
ABSTRACT:
A method for selectively varying the length of a horizontally foldable covering includes suspending the lower part of the covering from a remaining part of the covering with suspension means. The suspension means, secured to the lower end of the covering, engages spaced apart vertical sections of the covering to fold the lower part of the covering over an upper section of the covering. The suspension means also permits retention upon upward folding of the folded part of the covering to further reduce the effective length of the covering.
REFERENCES:
patent: 2246663 (1941-06-01), Bradshaw
patent: 2299173 (1942-10-01), Pidgeon
patent: 2514316 (1980-07-01), Dobrin
patent: 3480069 (1969-11-01), Handwerker
patent: 3913655 (1975-10-01), Ogino
patent: 3996083 (1976-12-01), Morgan et al.
patent: 4560245 (1985-12-01), Sarver
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