Abstract: An edger mill having a pair of edging rolls mounted for variable positioning apart from each other is powered by a plurality of electric motors driving the rolls from above, having a long shaft extending upwardly from each roll, with a bull wheel connected to each shaft in driving relation, each bull wheel having two or more electric motors connected thereto in driving relation by respective pinions. Synchronization between the edging rolls may be effected by mounting the bull gears in mutual intermeshing relation, or by using synchronous motors so that the common bus supply to the motors constitutes a synchronizing agency to maintain the edging rolls in synchronized relation.

Abstract: The disclosure of the present invention relates to a compensating counterweight system used in a cold pilger step-by-step type seamless tube rolling mill reciprocated by a crank assembly. The crank assembly includes first and second compensating mass devices which are arranged to rotate coaxially on a single crank shaft in opposite directions relative to each other. The two mass devices are kinetically connected through a bevel gear drive set which causes the second compensating mass device to rotate in an opposite directon to the first compensating mass device.

Abstract: An improved design for a cage mill for disintegrating or reducing materials such as ore, grain, etc., consisting of a movable and a stationary portion for housing two cooperative rotatable cage assemblies mounted on coaxial shafts, and each having two rows of impact members alternating with those of the other cage assembly. The axial length of the impact members increases radially outwardly from the axis of the two shafts, and a disk for each cage assembly has a stepped portion for mounting the longer row of impact members and the ends of the members are protected by impact rings. The stepped portion provides an offset area for nesting the ring of a preceding row to protect the ring against abrasion. For each cage assembly a tapered split ring nut arrangement at the end of the shaft forces the cage against a hub rigidly secured to the shaft, and a locking means secures the nut to the shaft.

Abstract: This disclosure relates to an electrolytic cell for electroplating a continuous strand of steel wire which is spread out in a series of consecutive circular loops while passing through the electroplating cell. The loops of wire are carried by two or more steel chains spaced apart and designed to convey the wire through the electroplating solution, each chain being supported by a cooperative steel track which also serves as the cathode for transferring current to the chains and hence to the wire.

Abstract: A method and apparatus for uncoiling material such as wire, from a coil supported about a horizontal axis by a drum, including separating a loop from the coil, and bending the leading end of the material upon its exit from a pinch roll unit so that it takes a path generally parallel to that of a predetermined passline, and straightening the material once the leading end passes through the straightener roll area. An end bender roll and two of the straightener rolls are mounted on a pivotal frame connected to a piston cylinder assembly which causes the frame to be rotated through an arc in a direction to either bring the end bender roll into an operative position while the two straightener rolls are in an inoperative position, or to bring the end bender roll into an inoperative position while the two straightener rolls assume a nested relationship with a fourth roll in an operative position.

Abstract: Disclosed is a vertical stand of a sizing mill for rolling seamless tube in which each roll of the mill is contained in and supported by a yoke moveable both transversely of the product passline and axially of the roll axis, the latter adjustment being performed by an elevator arranged normally at the bottom of the mill for moving both yokes as a unit with their rolls, i.e. a yoke-roll set, through the top of the stand to a roll changing position where both yokes are transferred as a unit to one of two in-lined arranged side shifting carriages supported by the stand, the arrangement being such that when a used yoke-roll set is moved away from the stand at the top thereof by one of the carriages a replacement yoke-roll set is positioned above the stand of the other carriage in readiness to be received and lowered into the stand by the elevator.

Abstract: A reel with an expandable mandrel support device for coiling material such as flat rolled steel strip or strips, the reel mandrel having a gripper mechanism for effectively securing each leading end to the reel mandrel which mechanism has numerous cam action gripper bars that singularly can increase gripping force as the tension in the strip strands clamped by one or more cams is developed by the reel; a positioning wedge assembly for these gripper bars constructed to first position and hold immovable, in an operative position, except for movement due to tension buildup, and secondly to positively and quickly release all gripper bars from the strand ends and hence from the reel mandrel when the coils formed by the reel mandrel are to be removed.

Abstract: A method and apparatus in a hot multi-stand tube mill for producing a thin metallic tube having end portions which corresponds to the wall thickness and diameter of the rest of the rolled tube or alternately, tapered ends. Each stand is provided with a set of three cooperating rolls arranged to form a roll pass opening. According to the tube's positioning in the mill, an appropriate additional adjustment of the rolls to decrease or enlarge the roll pass diameter is made in one or all of the last three stands. Both an initial roll setting varying means and an additional roll setting varying means cause movement of wedges abutting the roll chocks thereby causing movement of the rolls.

Abstract: An arrangement for obtaining proper alignment of parts and proper sealing of parts in an extrusion press having an offset supporting shaft rotatably carrying a container holder assembly and two or more containers into which heated billets are placed to be brought to the extrusion station. A set of aligning keys diametrically opposite each other on both ends of each container engage with a corresponding set of keyways in a sealing member and a die slide respectively.

Abstract: A method and apparatus for producing a thin metallic tube having a trailing end portion which optionally can be formed with an external diameter substantially corresponding to or varying from that of the remaining rolled portion of the tube rolled in a three roller skewed rolling mill. This is accomplished by causing an angular unisonal displacement of the roller axes to effect an enlargement of the rolling area, and at least during part of the roller movement, a second movement of the roller perpendicular to the axis of the tube.

Abstract: This disclosure relates in part to a hot extrusion press wherein the extrusion is cooled immediately after the extrusion operation by arranging a cooling tube including a cooling nozzle within the platen of the press and a second cooling nozzle between the platen and a water tank to which the extrusion is ultimately transferred for final cooling. The second cooling nozzle is employed to cool the extrusion and on the occasion of a cobbled extrusion, it is employed to drain the cooling tube and at the same time prevents water from flowing from the tank into the tube.

Abstract: A transducer control arrangement in a hydrostatic pipe testing machine or pipe tester, for preventing a change in the positioning of the pipe relative to a testhead seal as testing fluid is introduced into the pipe. A transducer signal activates at least one pump to operate a piston cylinder assembly connected to the testhead to reduce or eliminate any relative movement between the testhead seal and the pipe.

Abstract: This disclosure pertains to a self-propelled industrial car for use in transporting hot or cold rolled steel coils having two pair of non-flanged wheels engageable with a track or flat surface, the guiding thereof being affected by a pair of guide rollers for each pair of wheels received in a guiding slot.

Abstract: A roof assembly for an electric arc furnace formed by a series of water cooled panels supportingly arranged between the water conveying outer ring and a water conveying center ring encircling the electrode-refractory area. One or more of these panels are constructed of a copper face sheet brazed to a steel backing sheet having groups of several machined traverse passageways, and are located in critical areas in the roof. Communicating with each group of passageways is a water entry header and a water discharge header. The outer ring acts as both a water source and drainage for the panels and center ring. The panels are suspended from a self-supporting spider web structure which carries the center ring and is supported by the outer ring.

Abstract: A method and apparatus for cooling elongate material, such as wire, after it has been drawn through a die, in which liquid coolant is applied to the drawn elongate material in only sufficient quantity to enable all or substantially all of the applied liquid coolant to be evaporated thus utilizing the latent heat of evaporation of the liquid coolant to cool the elongate material.

Abstract: An apparatus for producing a continuous curtain of cooling liquid to cool a hot metal workpiece issuing from a rolling mill. A header tank with an elongated slot formed lengthwise along its underside is provided. An elongated nozzle, located in the header has an outlet extending from the slot. Both the inlet and outlet of the nozzle are generally rectangular in form but differ considerably in cross-section. An insert divides the nozzle into several passageways.

Abstract: The disclosure pertains to a drive shaft for machines such as roller levellers for processing steel strip. The shaft is made up of outer and inner members, the latter driving the former. Between the members is provided a frictional driving surface such as can be provided by brake lining. The inner member has an opening into which is introduced a pressure medium such as solution of soluble oil which in a controllable and predictable manner expands the inner member thereby allowing the establishment of a driving relationship between the members up to a given torque and on the experience of excessive and objectionable torques allowing relative movement between the members.

Abstract: This disclosure relates to a process for the regulation of the thickness of a flat product such as a strip, sheet or plate, being rolled in a hot tandem rolling mill, and the corresponding regulation device for carrying out the process. Regarding each stand of the rolling mill on which the adjustment is being performed, a constant rolling pressure is maintained, the gap is measured, the deviation between the measured gap and a set value corresponding to a desired thickness of the product is determined, and the necessary correction of the value of the tensile force applied on the product between the stand under consideration and the upstream stand in order to bring the gap back to its set value is determined. Finally, this correction of the tensile force between the stand under consideration and the upstream stand is performed.

Abstract: In the direct extrusion of tubing wherein the extruded tube or tubing is immediately submerged into water after extrusion and having a closed leading end, the trailing end thereof in the extrusion press is sealed off from the entrance of water by a crimping device consisting of a tool having a rounded front end which engages and forces through the operation of a piston cylinder assembly one wall inwardly of the trailing end against an opposed wall to form a collapsed double wall cross section.

Abstract: A rolling mill includes an assembly which can be withdrawn from the two housings. The assembly has two rolls with each roll having a pair of bearing chocks on the roll necks and a pair of further chocks positioned outwardly of the bearing chocks one on each of a pair of extensions of the roll necks. Fluid operable means positioned between the corresponding further chocks permit bending forces in one direction to be applied to the rolls and bending forces in the opposite direction are applied to the rolls by fluid operable means acting between the further chocks of one roll and a reaction member fixed relative to the further chocks of the other roll.