Paper feeding device and an application thereof

A paper feeding device for feeding paper from a paper roll, comprising:

• a paper feed box having a bottom portion with a front edge portion, said bottom portion slanting slightly downwardly to the front, and a front wall portion standing substantially upright and slanting slightly forward from said front edge portion of said bottom portion, so that said front wall portion and said bottom portion establish an obtuse angle at said front edge portion, said front wall portion defining the lower edge of a drawing outlet for unrolled paper portions unrolled from said paper roll, said paper feeding box containing said paper roll so as to freely contact both said bottom portion and said front wall portion owing to the weight of said paper roll, and said paper feeding box including within its interior a pair of guide plates and means for urging said guide plates to press against opposed sides of said paper roll, so that said unrolled paper portions of said paper roll can be drawn upward to said drawing outlet along said front wall of said paper feed box under a predetermined brake force resulting from a combination of friction forces produced between said paper roll and each of said bottom portion and said front wall portion roll and friction forces produced between said pair of guide plates and said opposed sides of said paper rolls, then laterally drawn out.