Abstract: In one embodiment a hand operated machine for making curly ribbon products comprises a rotary drum that includes a station to attach the uncurled ribbons (more than one), a cutting station to cut the curled ribbons, and a stapling station to staple the ribbons together or to a card, ribbon, or the like. A handle is provided to rotate the drum and a fixed curling mechanism mounted downstream of the drum serves to curl the ribbon as the drum rotates to place the ribbon in contact with the curling mechanism. In another embodiment the machine is automated and includes a drum that has the same stations. The attaching station includes a pair of jaws that are sequentially movable one relative to the other and together to attain attaching the ribbons to the drum for the first cycle, detaching the ribbon during the first cycle and attaching the succeeding ribbon used in the next cycle for mass producing the curly ribbon product.

Abstract: In one embodiment a hand operated machine for making curly ribbon products comprises a rotary drum that includes a station to attach the uncurled ribbons (more than one), a cutting station to cut the curled ribbons, and a stapling station to staple the ribbons together or to a card, ribbon, or the like. A handle is provided to rotate the drum and a fixed curling mechanism mounted downstream of the drum serves to curl the ribbon as the drum rotates to place the ribbon in contact with the curling mechanism. In another embodiment the machine is automated and includes a drum that has the same stations. The attaching station includes a pair of jaws that are sequentially movable one relative to the other and together to attain attaching the ribbons to the drum for the first cycle, detaching the ribbon during the first cycle and attaching the succeeding ribbon used in the next cycle for mass producing the curly ribbon product.

Abstract: Apparatus for the elimination of noxious ammonia fumes associated with diazo copiers includes a plenum chamber disposed about the output aperture of the machine developer chamber. Vacuum means are provided to draw the ammonia laden air out of this chamber. Preferably this apparatus is used in conjunction with a novel filter connected between the chamber and the vacuum means. The filter comprises a filter body of a material such as corrugated paper having a plurality of longitudinal substantially parallel channels, the walls of which are impregnated with a material, such as phosphoric acid, which will react with ammonia to generate odorless end products. A granular layer impregnated with such a material may be disposed in contact with the output end of this filter body.