Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Automatic and/or material-triggered control
Patent
1987-10-16
1988-11-22
Simmons, David
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Automatic and/or material-triggered control
53 51, 156 64, 156164, 156361, 156495, 226 28, B65B 4118
Patent
active
047863536
ABSTRACT:
A web width control apparatus for controlling the ratio between web width change and web thickness change during a web length varying operation in a web transport system of the type including a moving web of relatively extensible maerial having a series of repeat length portions therealong which are designed to be presented at a web processing station at a preselected constant design length value and in which each said repeat length portion is subject to stretching or shrinking in length depending upon the tension provided in the region of the web in which said repeat length portion is positioned; and further including a first set of nip rolls operable at a selected surface velocity and a second set of nip rolls operable at a selectively variable surface velocity with respect to the surface velocity of said first set of rolls for causing relative length change in a web portion positioned therebetween for adjustably maintaining the respect length portions of the web at said predetermined design length value at the time of presentation of said repeat length portions at said web processing station comprising: web temperature control device for controlling the temperature of a control portion of the web positioned between said first and second sets of nip rolls during web length varying operations whereby a substantially constant, preselected web width is maintained at said web processing station.
REFERENCES:
patent: 2546059 (1951-03-01), Cloud
patent: 3427778 (1969-02-01), McClusky
patent: 3908331 (1975-09-01), Donnet
patent: 4496417 (1985-01-01), Haake et al.
patent: 4704171 (1987-11-01), Thompson et al.
Cothren Eddy
Templeton Darrell L.
Vischer Peter
Adolph Coors Company
Simmons David
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