B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
93/32, 93/33
B31B 1/74 (2006.01) B31B 19/90 (2006.01)
Patent
CA 1082967
A B S T R A C T Apparatus for producing bags of plastics material having an opening closable by a flap and a band of adhesive for securing the flap after closing of the opening, the band of adhesive being covered by a releasable strip of plastics material, the apparatus including a reel holder for rotatably supporting a reel of the releasable strip, guide means for feeding the strip in succession passed an adhesive applicator for applying a band of adhesive to one side of the strip, and cooling means for cooling the strip and band of adhesive, further guide means for guiding a continuous length of folded plastics material for forming the bags to heat severing means which operate to sever separate bags from said continuous length and also fuse together the edges of each separated bags, and pressure means arranged to apply the strip to said continuous length so that the strip is secured by the band of adhesive to said continuous length before it is fed to the severing means, including a table rotatable about a vertical axis and arranged to support the reel horizontally, brake means being provided for restraining rotation of the table so as to tension the strip as it is pulled off the reel.
322047
Blore Peter D.
Wheatley David S.
Fetherstonhaugh & Co.
Metal Closures Venus Packaging Limited
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