US 4,607,837 AGranted

Tension apparatus for feeder machine

AssigneeSandco Limited

InventorBobby L. Pierce

Life of this patent

Estimating the term…

Loading patent…

Abstract

An improved pressure adjustment device for the intermediate conveyor system of a sheet feed machine wherein the conveyor system includes a plurality of spaced roller assemblies slidably mounted on a beam which is pivotally mounted to interior portions of the sheet feed machine, and wherein the roller assemblies include their own spring tensioning; comprising a tension bar extending between the interior portions and having an elongated slot therein, the tension bar being located in a position closely adjacent and forward of the pivot axis of the beam, a hollow channel member being mounted on the tension bar and having a lower opening therein, and an adjustment screw having an external head and being threadedly received in the upper portion of the channel member whereby the lower end of the screw passes through the slot and opening and downwardly against the beam to urge the beam downwardly about its pivot axis.

Claims3

Dependent claims

An improved pressure adjustment device for an intermediate conveyor system of a sheet feed machine, said conveyor system comprising a plurality of spaced roller assemblies slidably mounted on a beam, said beam being disposed parallel to and above a conveyor belt, said conveyor belt being mounted on a horizontally disposed table which comprises a portion of a delivery station of said sheet feed machine, a mounting bracket received on said beam and being pivotally mounted on a pivot rod, said pivot rod extending between the interior side walls of said sheet feed machine and being secured thereto;

said adjustment device comprising a horizontally disposed tension bar extending between said interior side walls in parallel relation to said pivot rod, said tension bar being located forward of and closely adjacent said pivot rod, a centrally disposed elongated slot in said tension bar, an attachment means slidably mounted on said tension bar, and an adjustment means received in said attachment means whereby said adjustment means exerts a downward pressure on said beam about said pivot rod.

Dependencies are inferred from the claim text.