Abstract A device for use in a tenter type stretcher is provided for preventing the torn off edge of the film from running off the normal path, said device comprising a liner consisting of a flat portion having a length and width sufficient for clipping a film thereon, and a tongue extending from said flat portion upwardly, and a clip lever pivotted to a clip body adapted for mounting said liner thereon, whereby the torn-off edge of the film, if it so happens when stretched laterally, may be prevented from running off the normal path behind said clip at the exit of the stretcher, said film being liable to be occasionally torn off lengthwise and made of a thermoplastic resin. (Such a film will be referred to as a film hereinafter).
A device for use in a tenter type stretcher for preventing the torn-off edge of a film or a sheet from running off the normal path, comprising a conveyor chain, a clip body mounted on said chain, a liner fixedly mounted on said clip body and consisting of a flat portion, having a length and width sufficient for clipping a film or a sheet thereon and a notched tongue extending in an inclined manner from said flat portion, a clip lever pivotted to said clip body, a spring means urging said clip lever into resilient cooperAtion with said liner to clip said film or sheet thereto and an ejection nozzle provided in alignment with the notch of the tongue and adapted to eject air under pressure directly against the notched portion of said tongue when said clip lever is moved to disengage said film or sheet.
Claim 2
Independent Claim
146 words
A device for use in a tenter type stretcher for preventing the torn-off edge of a film or a sheet from running off the normal path, comprising a conveyor chain, a clip body mounted on said chain, a liner fixedly mounted on said clip body and consisting of a flat portion, having a length and width sufficient for clipping a film or a sheet thereon and a notched tongue extending in an inclined manner from said flat portion, a clip lever pivotted to said clip body, a spring means urging said clip lever into resilient cooperAtion with said liner to clip said film or sheet thereto and an ejection nozzle provided in alignment with the notch of the tongue and adapted to eject air under pressure directly against the notched portion of said tongue when said clip lever is moved to disengage said film or sheet.