Abstract: An apparatus for wrapping a stack of objects vertical side faces and a horizontal top face has a unit for wrapping a film wrapper around the stack such that respective sections of the wrapper extend upward from each of the side faces. A first welder welds ends the film wrapper together at one of the side faces of the stack. A fold-over device folding the film sections over onto the top face of the stack. A second welder welds the folded-over film sections together on the top face of the stack.

Abstract: An apparatus for wrapping a stack of objects with a film has a film supply holding the film and a support including only two vertical masts adjacent the film supply and juxtaposed with the stack to be wrapped. A pull-down device is shiftable vertically along the two masts next to the stack. A film-feed head is also shiftable vertically along the two masts. The film extends from the supply through the film-feed head to the pull-down device. A film-storing means or looper is provided in the film-feed head for storing a variable length of the film in the head.

Abstract: An apparatus for wrapping a film around each of a sequence of objects passing sequentially through a wrapping station has a supply of the film adjacent the station, a feed head at the station having a base, a support carried on the base and rotatable relative thereto about a vertical axis, and a feeder on the base for pulling the film off the supply and feeding it to the support. A film storer carried on the support is operable to take in and store a length of film fed to the support by the feeder. A pull-down device in the station is vertically displaceable below the feed head.

Abstract: An apparatus for packaging a load with film from a film supply has a first wrapping device that forms from the fed film a first film curtain that can be attached to all walls of the load. A folding device in the first wrapping device can fold a film section of the film fed from the film supply such that, after wrapping the load with the first film curtain, the film is attached to the side walls in a lower region of the side walls of the load in a double-layer manner according to the width of the folded film section. A second wrapping device forms from the fed film a second film curtain that the second wrapping device also attaches to the upper wall, to two side walls and to the bottom wall of the load.

Abstract: The invention relates to a method for drawing a tubular film (1) over a stack of goods (2), wherein the tubular film is first gathered on a gathering device (R/Ü). The gathered tubular film is then drawn over the stack of goods using a covering device, in that the covering device is moved along the stack of goods and the tubular film is thereby ungathered. After reaching an end region of the stack of goods, the covering device is moved along a segment of the stack of goods (?) opposite the covering direction, so that a first tubular film segment (15) is laid on the tubular film already contacting the stack of goods. The covering device is then moved along at least part of the segment of the stack of goods in the covering direction again, so that a second tubular film segment (16) is laid on the first tubular film segment.

Abstract: An apparatus for wrapping an object with a film has a film-feed head having a drive for pulling the film from a supply and feeding it in a feed direction through the head toward an object to be wrapped with the film and a pull-down device downstream in the direction from the head for drawing the film around the object. A blower directs a stream of air in the feed head parallel and immediately adjacent to the film and in the feed direction so as to entrain the film in the direction.

Abstract: An array of objects stands on a flexible web on a horizontal support, and a frame at the accumulation region gathers the objects at the downstream end into a group having a plurality of transverse rows. A transport element formed as a blind has an end edge and is shifted shiftable atop the web upstream in the direction between a ready position with the end edge spaced from the group standing on the web and a pickup position underlying the entire group. A lifting element underneath the web moves jointly with the transport element such that the web is raised immediately upstream of the end edge of the transport element to raise downstream edges of the objects and the transport element is engageable between the objects in the group and the web so the transport element can slide underneath the objects in the group.

Abstract: An apparatus for wrapping a stack of objects with a film has first and second supplies of films and a pull-down device shiftable vertically along the stack of objects. A film-feed head has a drive roller rotatable about an axis in the film feed head and first and second pairs of counterrollers angularly offset from each other relative to the drive-roller axis. The drive roller and the pairs of counterrollers are relatively shiftable between end positions in each of which one of the pairs is spaced from the drive roller and the other pair is engaged with the drive roller. The first and second films pass between the respective first and second pairs and the drive roller. An actuator can shift the first and the second pairs of rollers relative the drive roller for pinching the films against the drive roller and, on rotation of the drive roller.

Abstract: A device for lifting a plurality of rows of containers has a base and a lifter with a transport surface formed like a blind and displaceable parallel to the base and provided with a frame. The surface slipped under the layer by feeding the containers into the frame. Prior to raising the layer, the lifter is moved toward the layer so that the transport surface is located with its front edge in front of the first row of the layer and is then moved underneath the layer into its lifting position by relative movement with respect to the containers. A partial region of the base is underneath every container at any point in time and the edge of the transport surface is shifted downward to form a clearance is given between the bottoms of the containers of the row and the base.

Abstract: An apparatus for pulling a tubular film down over a large object has at least two guide and roller assemblies each flanking the object and each movable vertically along the object. Each assembly has a guide, an outer roller and an inner roller. The film is gathered by positioning the assemblies in an upper position, orienting the inner rollers generally below the outer rollers, and rotating the rollers while gripping the hood between them to pull the tube down and form it into folds beneath the roller assemblies. The film is pulled down over the object by orienting the inner rollers generally above the outer rollers, and then shifting the roller assemblies downward while rotating the rollers so as to pull the tube up and unfold it.

Abstract: A process is disclosed for removing a shrink wrapping drawn over a stack of goods. The shrink wrapping is vertically cut at one side of the stack of goods, one edge of the cut is held and secured to a winding spindle, and the winding spindle is then guided around the stack of goods so that the shrink wrapping is winded on the winding spindle that rotates around its longitudinal axis. Also disclosed is a device for carrying out the process.

Abstract: The invention concerns a device for packaging palletized stacks of goods which are brought on a chain conveyor to a wrap cover station where they are raised by an elevating platform located under the wrap cover station. A suction fan is provided under the wrap cover station which sucks in the edges of a shrink wrap drawn over the stack of goods, which edges project over the underside of the pallet, before the palletized stack of goods is lowered and transported to a shrinking station. In addition, tools for folding back the projecting edges of the shrink wrap under the pallet are located in the zone of the wrap cover station. In order that folded-back sections which are as free of folds as possible are produced on the underside of the pallet, the tools are slide plates which are located at the height of the upper side of the elevating platform when the elevating platform is raised and the plate and slide plane of which runs essentially parallel to the plane of transport.

Abstract: The invention concerns a burner for producing a jet of hot gases, in particular to shrink plastic foils, with a pressure distribution chamber of a fan-like contour joined to a mixture feed means and merging at its wide end into a combustion chamber of an elongated cross-section, a flame holder being mounted in the transition zone between the pressure-distribution and the combustion chambers. In order that such a burner evince more reliable and constant properties while being of a simple design, the flame holder shall be a bar of shaped section extending across the entire width of the pressure-distribution and combustion chambers and together with the adjacent walls shall form passageway-gaps for the combustion gases.

Abstract: The invention concerns an apparatus for producing a hot gas to shrink plastic foils, with at least one burner mounted in a housing provided with a discharge nozzle for the hot gas. To better control the hot-gas temperature and hence the temperature of shrinking, the apparatus is provided with such a burner arrangement that the hot-gas jet (9 or 10) leaving the burner (7 or 8) is directed at an angle to the discharge flow defined by the discharge nozzle (6) and with a jet-deflection means for the hot-gas jet (9 or 10) before the discharge nozzle (6).In a preferred embodiment the jet deflection is implemented by a jet (17) of cold air by means of which the hot-gas jet (9 or 10) is simultaneously directed and cooled. In a preferred mode, the pressure and the flow rate of the cold-air jet (17) are controlled.

Abstract: Equipment for covering a stack of goods with a shrink-wrap having a vertically displaceable lift carriage; guide means for said carriage; means for displacing said carriage; a substantially horizontal support connected to said carriage, said support rotateable substantially 180.degree. around a vertically displaceable horizontal axis; means for rotating said horizontal support; and, shrink-wrap gripping and releasing means connected to said horizontal support and moveable therewith for placing said shrink-wrap around said goods is disclosed.