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Title: Paper roll diameter sensing device for use with paper splicing apparatus

Abstract: A paper roll diameter sensing device for use with a paper splicing apparatus is disclosed which gives the output signal when the diameter of an unrolled paper roll is reduced to a predetermined diameter so that the running paper web may be spliced to the leading end of a new paper roll.


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Inventors: Mori, Yasuharu (Amagasaki, JA)

Application Number: 492172
Filing Date: 1974-07-26
Publication_date: 1976-08-10
Assignee: Rengo Co., Ltd. (Osaka, JA)
Primary Class(es): 340/675 242/554, 242/563.2, 307/123, 324/161, 340/681, 361/243, 377/24, 377/39
Other Classes:
US Patent Ref:
3161365Dec, 1964Johnson et al.242/57.
3232548Feb, 1966Bent et al.242/58.
3298622Jan, 1967Raymond et al.242/58.
3352023Nov, 1967Budnick324/161.
3518857Jul, 1970Hancock et al.242/57.
3775223Nov, 1973Moseley et al.242/57.
3834648Sep, 1974Rose et al.242/57.

Other Refs:
Primary Examiner: Trafton, David L.
Assistant Examiner:
Attorney: Stewart and Kolasch, Ltd.