A compensating bolster and die holder combination for use with the bed of a press brake to provide vertical adjustment and compensating camber to the die holder supported thereby. The die holder is vertically moveable in an open channel of an underlying elongated bolster fitted to the bed of the press; with plural wedge members, moveable transversely of the die holder, serving to adjustably position and support the latter. Each wedge member has joined thereto an indicator pin extending through o...

The present invention relates to a pneumatic press counterbalance which holds selected parts of a press in the same relative engagement during the return stroke of a ram as during the power stroke of that ram. The counterbalance includes a base plate adapted for connection to a first part of a press. An elongated cylindrical base tube having an open end is mounted on the base plate and has a center axis substantially perpendicular to the base plate. A resilient unconfined tubular bellows for hol...

A system for repairing a continuous loop chain includes a plurality of pairs of chain links, each link having a pair of straight, substantially parallel side bars. Each pair of chain links has an outer link having a first width between the outer link side bars, and an inner link having a second width between the inner link side bars. The second width is less than the first width such that the side bars of the inner link are adapted to fit between the side bars of the outer link. The outer links ...

The present invention provides a non-detachable chain link for a material mover chain. Chain link comprises a body portion having an aperture therethrough and a hook portion including a tip portion. A recess defined by the hook portion is adapted to contain one or more bearing surfaces on the body portion of an adjacent link in a chain comprised of a plurality of such links. The tip portion has a greater width than the aperture to prevent the hook portion from falling through the aperture of an ...

A flexible bushing for a cam follower, comprising a substantially rigid inner sleeve including an inner cam follower engaging surface, a length of the inner sleeve being greater than a thickness of a ram into which the flexible bushing is inserted, a substantially rigid outer sleeve including an outer ram engaging surface, a length of the outer sleeve being substantially equal to the thickness of the ram, the inner and outer sleeves being substantially concentric, and a shock absorbing flexible ...

A ratchet arrangement of a chain splitter comprises a rotating rod integrally formed at a side of the ratchet wrench, and the rotating rod is to be screwed in a threaded hole of a splitter body. The ratchet wrench can reduce the required revolving space and the whole packing of the chain splitter, thus saving the required space when transporting the packed chain splitter.

An in-die hydropiercing device comprises a punch with an annular shearing blade which is operated by a hydraulic cylinder and is received in a ring-shaped die button mounted in one of the dies that form a die cavity for the hydroforming of a part, a center support member that is received in the center of the punch and supports the wall of the part inward of the shearing blade during the hydroforming of the part and also during the piercing of the part with the shearing blade, a slug collector, a...

The centreline runout (a) and out of roundness (b) of a shaft (100) is measured by measuring the distance between the central longitudinal axis (102) of the shaft (100) and each of a plurality of angularly spaced measurement points (103) located on the outer surface of the shaft in a measurement plane (18) using a measuring device (10). The position of the centroid (104) of the shaft at the measurement plane (18) is calculated along with the distance between the centroid (104) and the shaft cent...

A pneumatic/hydraulic riveter includes a valve unit formed of a socket set and a control valve movable relative to the socket set to provide a forward rotation control air loop, a pulling control fluid loop, or a reverse rotation control air loop in such a manner that when one loop is provided the other two loops are closed, so that the riveting unit is controllable to perform a forward rotation action, a pulling action and a reverse rotation action in proper order.

A hybrid metal forming system includes a die cavity defined by a first die and a second die and a press adapted to apply a static pressure over the first die to deform a workpiece against the second die. The hybrid forming system also includes a dynamic loading system coupled to and positioned between, the press and the die cavity.