Equipment for introduction of a strip of paper, cardboard or sim

Details Equipment for introduction of a strip of paper, cardboard or sim Equipment for introduction of a strip of paper, cardboard or sim

1974-11-11

1977-01-25

Pinkham, Richard C.

Printing

Rolling contact machines

Rotary

73 955, 101232, 226 25, 318 6, B41F 1354

Patent

active

040045102

ABSTRACT:
In a printing machine, a device for introducing a continuous web of paper to the printing station, the device having apparatus to continually measure the coefficient of elasticity of the web and apparatus for developing a tension on the web as a function of the measured coefficient of elasticity. The web is fed against two tension measuring devices in conjunction with two traction rollers having slightly different radii from which the coefficient of elasticity can be calculated electronically.

REFERENCES:
patent: 3087663 (1963-04-01), Anderson
patent: 3183711 (1965-05-01), Duncan
patent: 3229175 (1966-01-01), Strandberg
patent: 3324363 (1967-06-01), Hill et al.
patent: 3329087 (1967-07-01), Sandor et al.
patent: 3348107 (1967-10-01), Hamby
patent: 3474311 (1969-10-01), Lewis, Jr.
patent: 3506863 (1970-04-01), Fallis
patent: 3590632 (1971-07-01), Gegenschatz
patent: 3633504 (1972-01-01), Chambon
patent: 3725755 (1973-04-01), Stabile
patent: 3749329 (1973-07-01), Nedreski
patent: 3749331 (1973-07-01), Nedreski

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