Printing – Rolling contact machines – Rotary
Patent
1975-08-21
1977-04-26
Burr, Edgar S.
Printing
Rolling contact machines
Rotary
101242, 101420, 271 65, 271186, 271225, 198382, B41F 2100
Patent
active
040194353
ABSTRACT:
An improved paper handling system includes a pair of work units which sequentially work on opposite sides of a sheet with the same edge of the sheet leading. An inverter between the two work units is effective to invert the sheet in such a manner that the edge of the sheet which leads during passage of the sheet through the first work unit will also lead as the sheet passes through the second work unit. A sheet which has been worked on, first side up, by the first work unit will also lead as the sheet passes through the second work unit. A sheet which has been worked on, first side up, by the first work unit with a head edge of the sheet leading is moved by a first conveyor along a first path into engagement with a stop member which engages the head edge of the sheet to arrest it at a first readiness position. A pusher then engages a side edge of the sheet and pushes it sidewardly. The turnover mechanism is effective to move the sheet sidewardly along a generally U-shaped path into engagement with a stop to register the sheet at a second readiness position relative to the second work unit. A second conveyor is then effective to move the sheet into the second work unit with the head edge of the sheet leading and a second side of the sheet facing upwardly.
REFERENCES:
patent: 1709006 (1929-04-01), Broadmeyer
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patent: 2266587 (1941-12-01), Carlson
patent: 2665633 (1954-01-01), Schubert
patent: 2723119 (1955-11-01), Engebretson et al.
patent: 3062532 (1962-11-01), Galatha
patent: 3190644 (1965-06-01), Schwebel
patent: 3642274 (1972-02-01), Herrington et al.
patent: 3700231 (1972-10-01), Aasen et al.
patent: 3856295 (1974-12-01), Looney
Addressograph Multigraph Corporation
Burr Edgar S.
Pieprz William
Root Russell L.
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