Laminating machine

A laminating machine of the type which laminates documents between sheets of plastic or on a substrate comprising a housing, a first set of rolls having end shafts within said housing adapted to receive material to be laminated and move said material between upper and lower platens within said housing, a second set of rolls having end shafts within said housing arranged to receive the material from said platens and discharge the material from the machine, end supports in said housing for said roll shafts, said roll shafts adapted to be rotatably supported between said end supports, drive means connected to one of said rolls of said one of said sets at one of said end supports and gearing means on said rolls at the other of said end supports for transmitting rotation of said one of said rolls to the other of said rolls, means pivotally mounted to said end supports rotatably supporting the upper rolls of each pair of rolls whereby said upper rolls of each pair may pivot upwardly to accommodate material of various thickness, and power transmission means connecting said rolls to maintain synchronization of rotation of said rolls if said upper rolls should separate from said lower rolls to an extent which would cause said gearing means to move out of mesh.

A laminating machine of the type which laminates documents between sheets of plastic or on a substrate comprising a housing, first and second sets of upper and lower rolls within said housing having end shafts, one of said sets of rolls arranged to receive material to be laminated and move said material to the other of said sets of rolls which discharges the material from said housing, end supports in said housing rotatably supporting said end shafts, drive means connected to a lower roll of one of said sets of rolls adjacent one of said end supports, gearing means on said rolls at the other of said end supports for transmitting rotation of said lower roll of said one set of rolls to the others of said rolls, said gearing means comprising gears on the shafts of each of said rolls, an idler gear between the gears of said lower rolls and the gears of each pair of rolls being in mesh, said upper roll of each pair of rolls mounted in said end supports to move upwardly to accommodate material of variable thickness and resilient auxiliary power transmission means connected to said upper rolls and driven from said lower of said one set of rolls to maintain synchronization of rotation of said upper rolls with said lower rolls if said upper rolls should separate from said lower rolls to an extent which would cause the gears of said upper and lower rolls to go out of mesh.

A laminating machine which comprises upper and lower rolls for accepting material to be laminated therebetween, end support members for rotatably supporting said rolls, drive means connected to the lower of said rolls at one end thereof, normally meshing gears on said rolls at the ends opposite said drive means whereby said lower roll normally drives said upper roll through said normally meshing gears, means mounting said upper roll to said end support members and permitting upward movement of said upper roll, pulley means on each of said rolls and a resilient belt connecting said pulley means whereby said lower roll may drive said roll in synchronism when said upper roll moves upwardly to an extent where said gears go out of mesh.