Package making – Apparatus for contraction of cover by stretching or shrinking
Patent
1990-12-03
1992-02-25
Sipos, John
Package making
Apparatus for contraction of cover by stretching or shrinking
53587, 533894, B65B 1104
Patent
active
050901826
ABSTRACT:
A round bale press comprises a unit forming a winding chamber having a product supply opening, a wrapping material supply unit for supplying a material for wrapping a finished bale, a wrapping material pulling unit for pulling the wrapping material of a predetermined length from the wrapping material supply unit and supplying the wrapping material into the winding chamber for wrapping the finished bale, a width stretching unit for stretching the pulled wrapping material before entering the winding chamber. The width stretching unit is arranged transversely to the longitudinal axis of the press and has a width corresponding at least to a width of a bale to be wrapped. The width stretching unit includes a guiding surface operable for changing the wrapping material from a straight position to a non-straight, roof-shaped position.
REFERENCES:
patent: 2597041 (1952-05-01), Stokes
patent: 2626422 (1953-01-01), Lammertse
patent: 3409988 (1968-11-01), Zelnick
patent: 3444585 (1969-05-01), Watanabe
patent: 4691503 (1987-09-01), Frerich
patent: 4729213 (1988-03-01), Raes
patent: 5003752 (1991-04-01), Matsumoto
Ohg Claas
Sipos John
Striker Michael J.
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