In the proposed forming press, a reversal device (17 to 20) is provided on a retention pin (1) inside the male die part (4) of the press, which reversal device retains the retention pin in its two end positions (X.sub.1, X.sub.2) until said retention pin is moved by a transmission member (10) on the male die part side or by the pressed article (2) inserted in the die (3).

In a woven fabric fourdrinier forming belt (1) for a cellulose drying machine, the majority of the longitudinal wires in the weave are made from polyamide. To achieve that the finished belt has an elongation of at most 5% from loose, dry belt to tensioned wet belt, the longitudinal threads are made from a polyamide where the radio between the number of methylene groups and amide groups has a quotient of at least 7. The belt is round woven to a weaving pattern where the longitudinal threads (2) e...

A transfer press or similar forming machine is provided with a transfer device having holding devices for the gripping and transport of sheet metal parts. During the transfer movement of the sheet metal parts from one machining stage to the next, the sheet metal parts are deposited intermediately on an intermediate depositing device. The intermediate depositing device takes over a partial path of the transfer so that the movement of the holding devices is less than half the distance between the ...

Forming machine comprising a first and second pairs of former and jaw arrangements, each of the former and jaw arrangements being relatively movable from an open to a closed condition (and from the closed to the open condition), but only after corresponding movement of the other former and jaw arrangement.

An unpierced metallic billet of relatively large diameter is subjected to three successive stages of deformation so as to form a metallic tube of relatively small outer diameter. In a first stage, the billet is given a generally "C"-shaped cross-sectional configuration. In a second stage, the diameter of the generally "C"-shaped cross-section is reduced and, simultaneously, the ends of the generally "C"-shaped cross-section are guided toward and then into contact with one another. In a third sta...

Cartons are formed from die cut carton blanks two at a time from two feed magazines each holding a stack of carton blanks, two adhesive application means having optical sensors for sensing adhesive application to the carton blanks, a centrally mounted rotary table having prefolding means which engage and prefold tabs on the carton blanks, folding means comprising apertures interengaging the blanks and forming the cartons therefrom, two transfer means for transferring carton blanks from the feed ...

A process for producing powdered metal which comprises taking metal swarf, removing oil and grease from the swarf, cooling the swarf to a temperature below -20.degree. C and milling the cooled swarf to form powder.

In a forming machine of the hydraulic press or forging machine type having at least one press cylinder acted on by a pair of values of stroke frequency and stroke volume predetermined by a first piston pump, the stroke frequency and stroke volume of the press cylinder can be adapted to the working requirements from cogging to planishing if the press cylinder has associated with it a second piston pump in parallel with the first piston pump and having a second pair of values of stroke frequency a...

A method of forming a plug-like member comprises placing a consumable member (4) in a bore (1) of a workpiece (2). The consumable member (4) is rotated relative to the workpiece (2) while they are urged together so as to generate frictional heat and the formation of plasticised material (5). The plasticised material (5) is allowed to solidify so as to form a plug-like member having an outer surface conforming to the inner surface of at least part of the bore (1). The plug-like member is either l...

A progressive bead forming metal die for forming beads in a metal gasket is constituted by a bead-forming die disposed between a hole punch die and an outer profile punch die. The bead-forming die comprises a pair of upper and lower inner bead boundary base blocks supported by upper and lower holders for pressing a desired bead shape and inner-bead flat sections, a stripper disposed so as to slide along the outer surface of the upper inner bead boundary base block, a die secured in contact with ...