초록 ▼

A process and apparatus for making a multi-pocketed album page includes means for supporting and guiding a plurality of transparent plastic strips into contacting relation with opposite surfaces of a paperboard web, the latter being moved through a predetermined path of travel. Longitudinal heat sea

A process and apparatus for making a multi-pocketed album page includes means for supporting and guiding a plurality of transparent plastic strips into contacting relation with opposite surfaces of a paperboard web, the latter being moved through a predetermined path of travel. Longitudinal heat sealing means are provided for heat sealing the plastic strips to the paperboard web in a direction along the path of travel of the strips and paperboard web. Transverse heat sealing means are also provided for heat sealing the strips to opposite surfaces of the paperboard web transversely of the path of travel. Shiftable cutting or shearing means are provided for cutting the paperboard web and transparent strips, after sealing, into page size so that each page is provided with a plurality of upwardly opening transparent pockets on both surfaces thereof.

대표청구항 ▼

Apparatus for making a multipocketed album page for photograph albums, comprising: means revolvably supporting a roll of paperboard, said paperboard having parallel longitudinal edges and being wound into a tight roll; means revolvably supporting a plurality of substantially identical strips of tran

Apparatus for making a multipocketed album page for photograph albums, comprising: means revolvably supporting a roll of paperboard, said paperboard having parallel longitudinal edges and being wound into a tight roll; means revolvably supporting a plurality of substantially identical strips of transparent flexible plastic, each strip of plastic having parallel longitudinal edges and having a width dimension substantially less than the width dimension of the paperboard; driven means gripping one end of the paperboard and one end of each strip of plastic to simultaneously unwind the paperboard strips of plastic and move the same through a predetermined path of travel; means guiding the strips of plastic in contacting relation with the surfaces of the paperboard during said travel, said guiding means causing a plurality of the strips to engage one surface of the paperboard in side-by-side spaced apart relation, and causing a plurality of said strips to engage the other surface of the paperboard in side-by-side spaced apart relation, one plastic strip which engages one surface of the paperboard being disposed in opposed registering relation with a plastic strip engaging the other surface of the paperboard; heat sealing means extending longitudinally of the plastic strips and paperboard being positioned on the opposite sides of and along the path of travel of the plastic strips and paperboard, said longitudinal heat sealing means engaging said strips and causing each said strip to be heat sealed to the paperboard along a heat seal extending longitudinally of the plastic strip and paperboard whereby a strip engaging one surface of the paperboard will be heat sealed to the latter along a heat seal zone disposed in registering relation with the heat seal zone of a strip engaging the other surface of the paperboard; transverse heat sealing means extending transversely of the paperboard and strips and being positioned on opposite sides of and along the path of travel of the plastic strips and paperboard, said transverse heat sealing means engaging said strips and causing each strip to be heat sealed to the paperboard along longitudinally spaced apart transversely extending heat seal zones whereby a strip engaging one surface of the paperboard will be heat sealed to the latter along a transverse heat seal zone disposed in registering relation with a transverse heat seal zone of the strip engaging the other surface of the paperboard; shiftable shearing means positioned on the path of travel of the strips and paperboard and located downstream of said transverse sealing means, said shearing means being operable to successively cut the paperboard and strips through each transverse heat sealing zone to consecutively form album pages each having a plurality of transparent pockets on each surface thereof, each pocket being defined by each strip heat sealed along three edges of the latter to the paperboard.