Atlas Copco Ias Gmbh

Itw Befestigungssysteme Gmbh

Manfred Schafer

Horst Tacke

Siegmund Oberhofer

Gerrit Enderle

Thomas Hausner

A method for conveying viscous material out of a barrel-like container open towards the top and having a bottom and a circumferential wall extending from bottom to top, uses a device having a follower plate for closing the container. The plate has a circumferential wiper ring having a radially outwardly protruding contact portion for contacting an inner container wall face facing the plate. A variable pressing force can be applied to press the contact portion against the inner face. The plate, following a decreasing material level and resting on the material surface, is moved bottomward, and, after the container is emptied, is moved away from the bottom, and the contact portion is pressed sealingly against the inner face while the plate moves bottomward. The sealing effect between the wiper ring and the container wall is suspended during plate movement away from the bottom by reducing the pressing force.

Barrel pump having a follower plate with an adjustable sealing ring

The invention relates to an apparatus () for the conveying of viscous material from a drum-like container (), which has a container bottom () and a circumferential container wall () extending from the container bottom () to an upper rim () of the container, which is open at the upper rim () of the container, the apparatus having, for closing of the container (), a follower plate () having a material outlet () attached to a conveyor pump (), wherein the follower plate () can be moved up and down in the container () while being in sealing contact against an inside face of the container wall () turned toward it, and having a lifting device () for raising and lowering of the follower plate (), wherein the lifting device () has a drive unit. According to the invention, a protective device () having a protective member () is provided, which is disposed in such a way with respect to the follower plate () and the container () that, upon introduction of the follower plate () into the container (), it annularly surrounds on the one hand the follower plate () and on the other hand the container () in the region of the upper rim () of the container. The protective device () additionally has at least one switch () for switching-off of the drive unit upon an at least partial exposure of the upper rim () of the container by the protective member () during the introduction of the follower plate () into the container ().

Device for conveying viscous material

The present invention comprises a nail driving device with a magazine for nails held together in nail strips, with a nail transport device, wherein the nail strips are pressed in the direction of a fixed stop surface by means of a spring element, and moved in the direction of the exit channel of the device mouthpiece. In order to be able to work with nail strips in which the nail shafts are spaced apart, but rather lie shaft against shaft, it is provided that the nail transport device has a transport shuttle which can be moved in the longitudinal direction of the magazine using the piston rod of the feed cylinder, and which has a wedge-shaped nail strip separating element which is operative during the reverse movement of the shuttle such that the transport element is formed as an advance clamp which grasps the separated nail strip laterally during the forward movement of the transport shuttle in such a way that the nail strip resting against the stop surface can be clamped between the transport shuttle and the advance clamp by means of spring action, and can therefore be moved forwardly along with the transport shuttle.

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Pforzheim, Germany

Siegmund Oberhofer