Web threading apparatus, particularly for threading of a rotary

Details Web threading apparatus, particularly for threading of a rotary Web threading apparatus, particularly for threading of a rotary

1985-09-09

1987-11-17

Hornsby, Harvey C.

Advancing material of indeterminate length

Threading device

With means to pull lead-end

101228, 335219, B65H 2016, B41F 1302, H01F 122

Patent

active

047068620

ABSTRACT:
For securing a web of material to the hook of a web threading apparatus, two flexible, magnetic plate elements are provided, between which the leading end of the web of material to be threaded can be clamped and which are connected with a loop for attachment to the hook. To maintain the web in alignment with respect to a plane defined by a longitudinal slit in a guide tube, and a guide tube axis, the magnetic plate elements are placed at the trailing end of a pulling connection (21) of pointed triangular form, having an intermediate, longitudinally resilient portion to absorb pulling shocks, and a head portion which has a lateral bead and can be threaded over open eye portions (33) of connecting elements (32) extending through the slit (31) of the guide track tube (30).

REFERENCES:
patent: 3024392 (1962-03-01), Baermann
patent: 3097406 (1963-07-01), Yarborough
patent: 3212546 (1965-10-01), Lind
patent: 3618174 (1971-11-01), Schainholz et al.
patent: 3629756 (1971-12-01), Holtz
patent: 3629905 (1971-12-01), Cote
patent: 3761001 (1973-09-01), Bolza-Schunemann et al.
patent: 4111122 (1978-09-01), Kutzner et al.
patent: 4138074 (1979-02-01), Ross et al.
patent: 4187968 (1980-02-01), Winterholler et al.
patent: 4255837 (1981-03-01), Holtz
patent: 4336806 (1982-06-01), Eldridge, Jr.
patent: 4370927 (1983-02-01), Fischer
patent: 4480801 (1984-11-01), Stone
Rheinmagnet brochure A482.

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