Allis-chalmers Corporation

Other

John P Nelson

Roger D Hanaway

C C Cockerham, Jr

A cylindrical package to be wrapped with stretch film sheet material is supported on a pair of parallel, horizontally spaced, horizontally extending support rollers, one of which is rotatably driven and the other of which is a slave roll which rotates idly. A stretch film supply means is mounted on a movable carriage with the axis of the film supply means parallel to the axis of rotation of the package. The carriage is caused to reciprocate along a path parallel to the axis of rotation of the package and the support rollers. The reciprocation occurs between a first position where the film material extends beyond one end of the package a distance at least as great as the radius of the package and a second position where the film extends beyond the other end of the package a similar distance. The film material is wrapped while tension is applied thereto. The tensioning device is designed to vary pressure at the end portions of the carriage path in relationship to the intermediate portions, so that the overlapped portion of the stretch film material tends to fold in and seal the ends of the package. A post member extends across and adjacent to each end of the package to ensure folding in and sealing of the film material.

Apparatus and method for wrapping and sealing cylindrical packages with

A grain bin adapted to be mounted on the upper part of an agricultural combine is provided with at least one 'floating' bin side wall extension which is automatically movable into substantially vertical grain-retaining position as the bin approaches and reaches a full condition. Clean grain which has been separated from the straw, chaff or the like is conveyed by an elevating conveyor which discharges the grain via a chute into the intake end of an elongated 'floating' bin loading conveyor which is pivotally mounted for angular movement in a vertical plane. In the illustrated embodiment, the bin loading conveyor is an auger conveyor and the rotatable shaft of the floating auger conveyor is driven by a suitable drive means through a universal joint. As the grain level in the grain bin approaches a full condition, the bin loading conveyor moves angularly upwardly from a horizontal position due to an upward thrust on the bin loading conveyor caused by the reaction of the grain discharging from the bin loading conveyor against the upper surface of the already loaded grain. In the illustrated embodiment, a pair of oppositely disposed bin side wall extensions are hingedly connected to the fore and aft walls of the upper edges of the grain bin, the bin wall extensions normally being folded downwardly in a lowered position. The respective bin wall extensions are connected by suitable link means to the floating bin loading conveyor whereby upward pivotal movement of the loading conveyor, as the level of the grain in the bin approaches a full condition, causes the bin wall extensions to be swung upwardly about their hinge connections into a vertical grain-retaining position. When the grain bin is unloaded, the hinged bin wall extensions move downwardly with the pivoted bin loading conveyor to a substantially horizontal lowered position.

Floating grain bin extension for use with agricultural combine

An adjustable belt idler arrangement is provided which permits the axial position of the belt idler to be adjusted while the belt is running to achieve proper alignment of the idler with the belt under dynamic operating conditions. The idler can be adjusted during running of the belt even though the idler is disposed in a relatively inaccessible location.

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Independence, MO, United States of America

John P Nelson