Thomassen & Drijver-verblifa N.v.

Other

Willem P Post

An apparatus for cutting through transversely or trimming pipes, pieces of tubing or cans by means of two cooperating shearing members having each a cutting edge which extends in a circular or otherwise closed line. These shearing members are mounted for relative radial wobbling shearing movement. There are provided in the apparatus also means for keeping the cooperating cutting edges at a safe axial distance from one another to avoid, during operation, damage to them, said means at the same time allowing the shearing members to relatively move in all radial directions to achieve the wobbling shearing operation.

Apparatus for cutting through or trimming a pipe or can in a plane

The invention relates to a method whereby a preformed metal lid which is intended for a tin, e.g. a paint tin, and of which at least one peripheral portion is axially deepened, is formed with a radially outwardly inverted peripheral edge with respect to the lid axis. The object of this invention is to provide a method in which the outwardly inverted peripheral edge can be formed with very close dimensional tolerances. To this end the invention provides a method of the type referred to hereinbefore, which is characterized in that the lid is held in tightly fitting relationship in all directions in a multipart die at least by its deepened peripheral portion, except in the zone where the inverted peripheral edge is to be formed and at least at the inside of the base of said peripheral portion, and said base is pressed by art of the die acting as a punch against the part of the die situated opposite the inside of the base.

Method of forming an outwardly inverted peripheral edge on a preformed

To prevent fold formation when arranging a circumferential flange and a circular constriction adjoining the same, the material of the sleeve body is locally arrested under a sufficient clamping force between the inner and outer segments of a deformation device.

Squeezer flanger

Process for applying a threaded seat for connecting a closing means or operations means to a metal plate, such as the wall of a drum, by making a hole in the plate and by drawing a cylindrical collar from the periphery around said hole approximately at a right angle to the plane of the plate, whereafter a thread is made in the part drawn from the plane of the plate, wherein a thread is provided in the collar between the plane of the plate and the end edge of the collar.

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Diepenveen, Netherlands

Willem P Post