초록 ▼

In apparatus for conveying successive stacks of sheets to a station at which an operation is to be performed on the stack, the sheets are advanced by pushing elements (14) to the station, at which a resilient finger (17) projects through a slot (16) in the track. The finger (17) aligns the leading e

In apparatus for conveying successive stacks of sheets to a station at which an operation is to be performed on the stack, the sheets are advanced by pushing elements (14) to the station, at which a resilient finger (17) projects through a slot (16) in the track. The finger (17) aligns the leading edges of the sheets in the stack. When the stack of sheets is to be advanced, a slide (20) retracts. The finger (17) is pivotally mounted on the slide and its upper inclined edge engages the bottom rear corner of the slot when the slide is retracted, causing the finger to sink below the track until the slide is returned in time for the alignment of the next stack.

대표청구항 ▼

Sheet-conveying apparatus comprising stack-pushing means for engaging the trailing edge of a stack of sheets loaded on to a stationary conveyor track, a stack-aligning element movable between a first position in which it projects from the track so as to engage and align the leading edges of the shee

Sheet-conveying apparatus comprising stack-pushing means for engaging the trailing edge of a stack of sheets loaded on to a stationary conveyor track, a stack-aligning element movable between a first position in which it projects from the track so as to engage and align the leading edges of the sheets of a stack and a second position in which it is withdrawn below the track, and means for halting the stack-pushing means when the stack of sheets has been advanced along the track to a station at which an operation is to be performed on the stack, and further comprising mounting means positioning the stack-aligning element at the said station and comprising resilient means permitting yielding movement of the element in the direction of movement of the conveyor while the element is in its first position, so that the sheets are urged into alignment to form a compact stack between the said resiliently mounted stack-aligning element and the stack pushing means, and means operating in timed relationship with further movement of the conveyor for withdrawing the resiliently mounted element to the second position to permit the stack to advance beyond the said station.