Stenter frame clip chain assembly

Details Stenter frame clip chain assembly Stenter frame clip chain assembly

1985-10-04

1987-06-23

Mackey, Robert R.

Textiles: cloth finishing

Expanding device for textile webs

Spreader

26 89, D06C 304

Patent

active

046741593

ABSTRACT:
Stenter apparatus for stretching film comprises stenter frame clip chain assemblies adapted to grip opposite edges of the film. Each chain assembly includes a plurality of chain clip units (5) which are movable on a double track rail system (3, 4). Each clip unit (5) carries a series of rollers wherein rollers (10a, 10b) with a horizontal axis run on an edge of a track (4) for chain weight support while a plurality of vertical axis rollers (7a, 7b, 8, 9, 12) engage side surfaces of the track assembly to resist horizontal loading. A further roller (11) serves to prevent uplift of the chain assembly. The clip units (5) are linked by articulating link means comprising spaced link plates (21, 22) pivotally carried by link pins (23) in the clip units, each link pin additionally serving to support a drive roller (15). A film clip (6) is located on each chain clip unit (5) and above the articulating link means. Preferably the tracks (3, 4 ) are spaced vertically.

REFERENCES:
patent: 1478454 (1923-12-01), Renold
patent: 3240412 (1966-03-01), Zygan et al.
patent: 3247544 (1966-04-01), Bromley
patent: 3391421 (1968-07-01), D'Onofrio et al.
patent: 3500515 (1970-03-01), Cunningham et al.
patent: 3580451 (1971-05-01), Fraitzl
patent: 3688557 (1972-09-01), Marinus

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