| 摘要 |
A sheet handling apparatus includes first and second endless belt means (38,40) which are of resiliently stretchable material and parts of which are in cooperative relationship with respect to each other, a sheet (68) being fed through the apparatus while gripped between the cooperating parts of the belt means (38,40). One of the belt means (40) passes around a pulley (60) associated with selectively operable actuating means (42,46,50,52,54). Operation of the actuating means (42,46,50,52,54) moves the associated pulley (60) so as to bring about a deformation of the cooperating parts of the belt means (38,40) and thereby change the length of the feed path for the sheet (68) through the apparatus. By operating the actuating means (42,46,50,52,54), the time at which the sheet (68) arrives at a certain location, such as a stacking wheel (75), may be adjusted. By using two pairs of cooperating belt means (38, 40) of this type, the orientation of a sheet (68) passing between the cooperating belt means (38, 40) may be adjusted. |
