Abstract: In an inserting machine, guide apparatus for maintaining control of individual sheets and collations that are conveyed along a transport deck by at least one pair of pushers, comprises a mounting beam coupled to a frame member of the inserting machine, and a plurality of guide arms pivotally mounted at one end to the mounting beam and biased against the transport deck. Each of the guide arms has a second end resting against the deck between the pair of pushers. Each of the guide arms has a curved shape for engaging a collation gradually An idler roller is rotatably mounted to the second end of each of the guide arms. The mounting beam is pivotally mounted at one end to the frame member of the inserting machine, whereby the other end of the guide apparatus is pivotable away from the transport deck.

Abstract: In an envelope stuffing apparatus which has an enclosure inserting station and includes a deck, side guides mounted on the deck at the inserting station, structure for delivering the envelope in a path of travel to the inserting station, structure for opening the envelope, and structure inserting an enclosure into the envelope and for removing the envelope from the inserting station, and wherein said opening structure includes structure for supporting the flap of the envelope above the deck, there is an improvement in the envelope opening structure. The improvement comprises two throat openers insertable into the envelope for stripping apart from each other the front and back panels of the envelope. Each throat opener includes a side guide member for guiding the enclosure into the envelope and further including a ramp member for guiding the enclosure from the deck into the envelope.

Abstract: An improved reciprocating ram for an envelope inserter includes a pusher which drives an enclosure from a ram pick-up station to an envelope station. Cycle time has been reduced by providing a ram return path which is beneath the elevation of the pick-up station. Thus, the next enclosure is fed to the pick-up station before the ram has completed its return stroke. The ram mechanism includes a ram carriage which rides along a pair of longitudinal rods. A ram block carrying a ram blade rides with the carriage and is keyed for vertical movement relative to the carriage. The block includes a follower which engages a longitudinal box cam having a latch adjacent its envelope station end. When the ram blade reaches the envelope station, the latch directs the follower to a lower elevation camming surface for the return stroke. The pusher is secured to the ram blade by a leaf spring catch which engages a grating on the undersurface of the blade.

Abstract: An articulate bridge assembly covers an enclosure transport pathway from an enclosure feeder through an enclosure pick-up station in a reciprocating ram type envelope inserter. The bridge includes a cover hinged along an axis parallel to the transport pathway. The horizontal and vertical planes of the cover are stabilized with reference to the inserter frame by spring mechanisms incorporated in the cover hinge assembly. A switch for detecting multiple enclosures in the pathway is mounted to the cover. To adjust the switch for various enclosure thicknesses, a knob at the face of the inserter is rotated. The knob advances a lead screw against a sloped surface of a pivot link. The pivot link in turn bears against a bracket assembly carrying the switch. The upper surface of the cover is planar and obstruction free, while a chassis is carried by the undersurface. Mounted to the chassis are skis which urge successive enclosures against transport belts.

Abstract: An improved reciprocating ram for an envelope inserter includes a pusher which drives an enclosure from a ram pick-up station to an envelope station. Cycle time has been reduced by providing a ram return path which is beneath the elevation of the pick-up station. Thus, the next enclosure is fed to the pick-up station before the ram has completed its return stroke. The ram mechanism includes a ram carriage which rides along a pair of longitudinal rods. A ram block carrying a ram blade rides with the carriage and is keyed for vertical movement relative to the carriage. The block includes a follower which engages a longitudinal box cam having a latch adjacent its envelope station end. When the ram blade reaches the envelope station, the latch directs the follower to a lower elevation camming surface for the return stroke. The pusher is secured to the ram blade by a leaf spring catch which engages a grating on the undersurface of the blade.