B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
B41F 13/00 (2006.01)
Patent
CA 2050841
19 A B S T R A C T O F T H E D I S C L O S U R E The drive system is for use on a web printing machine of the kind having at least first and second printing units drivable from a prime mover. Drive is transmitted through a drive shaft which is common to the printing units. The first printing unit is disposed between the prime mover and the second printing unit. The drive system comprises a drive unit having a motor for transmitting drive to a movable member of the first printing unit. While drive from the prime mover to the first printing unit is interrupted. The drive motor enables an operation requiring drive of the movable member to be performed on the first printing unit while the second printing unit remains drivably connected to the prime mover through the driveshaft. The isolating system comprises a switch for disabling on the first printing unit a sensing circuit which normally operates to inhibit drive to the first and second units from the prime mover as a result of movement of guards on the first unit into an inoperative position. Operation of the switch is possible only after drive to the first print unit has been interrupted.
Ade & Company
Bell Stuart D.
Sdb Engineering Limited
LandOfFree
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