Apparatus for tensioning and fusing strips of thermoplastic mate

Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing

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Details

53198R, 156523, 156580, 228 2, B32B 3118, B32B 3120

Patent

active

039842789

ABSTRACT:
The invention relates to an improved apparatus for tensioning and fusing together strips of plastics material, having a pair of clamping members mounted on a support base and between which members overlapping strip portions are inserted tensioned, and fused together by frictional heat generated upon movement of one clamping member relataive to the other; the improvement resides in that the clamping members comprise clamping jaws of which at least one is adaptd to be reciprocable at a frequency corresponding to the speed of a drive shaft and that the drive is effected via a gearing which presses said driven reciprocable clamping jaw against the strip abutting it during its movement in the tensioning direction.

REFERENCES:
patent: 3554845 (1971-01-01), Billett et al.
patent: 3554846 (1971-01-01), Billett et al.
patent: 3669799 (1972-06-01), Vicins et al.
patent: 3679519 (1972-07-01), Frey
patent: 3783079 (1974-01-01), Wehr
patent: 3799835 (1974-03-01), Gilmore

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