Abstract: Method and apparatus are disclosed for controlling the final output gauge of strip material passing through a tandem rolling mill in which the final reduction in gauge is substantially accomplished at the next to the last stand. An automatic gauge control (AGC) loop responsive to the changes in speed of the next to the last stand, controls the speed regulators for the last two stands. Responsive to the next to the last stand speed, the AGC loop provides a variable gain at low and high mill speeds respectively to appropriately adjust the control signals to the speed regulators for the last two stands. Interstand tension control between the last two stands is provided by modification of the speed regulator for the last stand.

Abstract: The invention relates to a control system for setting the crown and/or steer on the rolls of a cluster mill such that the adjustment collars are all driven together but substantially in the desired final ratio to one another throughout the movement. The control system derives a separate control signal for driving each eccentric collar. The circuits for deriving the control signals include means for deriving from crown and steer magnitude signals, a series of crown and steer datum signals, one for each collar, which are proportional to the respective magnitude signals in selected ratios, the crown ratios being preselectable by a selection means and means for progressively increasing the magnitude signals from zero to the desired value.

Abstract: A machine for straightening elongated workpieces comprises a plurality of straightening rolls mounted one after the other to opposite sides of a workpiece to be straightened, substantially in a plane and turnable about axes normal to the direction of movement to the workpiece through the machine. At least the first three straightening rolls are mounted for rotation about their axes on a C-shaped support frame so that the workpiece may be introduced between the same from the open side of the C-shaped support frame. Lateral elements for centralizing the workpiece are coordinated with the first three straightening rolls.

Abstract: In an apparatus for manufacturing a taper leaf spring, by which after performing rolling on the edges of a sheet spring material in the direction of its breadth, rolling for tapering the sheet in the direction of its thickness is carried out, an edge roll assembly is employed for the sake of rolling in the breadth direction. In the edge roll assembly, constraining flanges for regulating the sheet thickness are provided on both ends of the main body of the edge roll so that expansion of both sides of a sheet spring material in the sheet thickness direction due to the effect of rolling in the sheet breadth direction is suppressed by the flanges and the thickness of a sheet spring material is kept uniform as a whole prior to performing rolling in the sheet thickness direction.

Abstract: The mandrel-holder for a pilger rolling mill comprises a head with a seat for a tang end of a mandrel and a body coupled to an actuator for the mandrel-holder. A lever is pivoted on the body of said mandrel-holder and has a main portion extending in a recess formed in said body and opening on the said seat, means being provided in order to move the lever from an operative position in which its main portion is in said seat to an inoperative position in which its main portion is retracted into said recess against spring means.

Abstract: The invention is an apparatus and method for aligning a very fine wire relative to a workpiece. It comprises an alignment fixture supporting a pair of spaced-apart lead screws for receiving the wire in the threads thereof. The wire is affixed to spacer arms oppositely protruding from the fixture and spans the spacing between the screws. The workpiece is supported between the spacer arms and may be raised or lowered to provide alignment with the wire which is then translated or oriented by turning either or both of the lead screws until the relative alignment is achieved. The wire is affixed to each of the arms in a slackened condition and a tiny weight is suspended from the wire for yieldably tensioning the same across the threads, but providing for translation without fracture.

Abstract: Method for manufacturing long bars, round, square or flat, employing multi-tandem type roller dies mechanism in which each roller gap is controlled by the roller gap adjusting mechanism, and apparatus preferably applicable that method. The apparatus is provided with a plurality sets of roller dies, controllers for outputting a respective target roller gap for each roller dies, roller adjusting mechanisms capable of shifting, in accordance with the commanding signals from servo devices based on the output target roller gap, each roller of each set of roller dies symmetrically about the axial line of the die hole formed by the roller dies, roller position sensors for measuring the respective roller gap in order to feed back the measured results to the servo devices, and a propelling mechanism for imparting a deformable blank propelling force.

Abstract: Process and apparatus is disclosed for replacing file folders, such as required in the conversion of a filing system. Apparatus comprises a support for supporting fastened file material next its fastener during and after fastener withdrawal and fastener remover for withdrawing fastener and file folder away from supported file material. The supported material may be clamped to facilitate replacement of new file folders with corresponding fasteners. The process comprises the steps of inserting a support between file material and file folder fastened thereto by a fastener to position the support next to the fastener, clamping the fastened file material, stripping the file folder with fastener away from the supported clamped material, replacing file folder with new folder and fastener, releasing the clamped material and closing the fastener to secure the file material in the replacement folder.

Abstract: A system for automatically bending wire into arcuate segments of different selected configurations utilizing a wire bending roll displaceable selectively by a stepping motor which is controlled by a microprocessor to bend a length of wire conforming to data retrieved from a computer. The wire is selectively advanced to a shear assembly where it is severed to a specific length and advanced through feed rolls towards the bending roll. Detection of the advancing severed length of wire locks in a strobe gear and the microprocessor with the stepping motor to determine the position of the wire with respect to the bending roll and to incrementally displace the bending roll in a controlled manner along an arcuate path to produce the desired bend in the wire.

Abstract: A taper-rolling machine comprises a four-high rolling mill having driven work rolls and means for adjusting one work roll and its back-up roll relative to the other work roll; a drawbar reciprocable relative to the rolling mill for drawing a blank through the mill; a mechanism for adjusting the adjustable work roll and back-up roll according to the position of the drawbar to effect taper rolling; and edger rolls acting on the blank to control the widthwise spread of the blank during rolling by the rolling mill.

Abstract: An apparatus and a method is disclosed for removal of a cardanically supported slide shoe of a slide shoe bearing which supports a rotary tube mill disposed within a slide ring. The apparatus includes two horizontal track joists supported on upright members and oriented parallel to the axis of rotation of the mill. Each track joist supports an end of the slide shoe which preferably has horizontal surfaces at its ends for cooperating with the track joists. The apparatus also includes a plurality of screw jacks disposed between each of the track joists and its respective upright support members. The screw jacks can be independently operated to raise the slide shoe free of its cardanic support, preferably a ball and socket-type of joint. A carriage means disposed between an end of the slide shoe and a respective track joist facilitates displacement of the slide shoe along the track joists.

Abstract: A method of rolling angle structural shapes in which a bar of rectangular ofile is rolled in a first step to form a blank having a rounded convex protuberance on one side and a flat opposite side. In at least one subsequent state, the blank is rolled to transform the protuberance or hump into a triangular protuberance or ridge with flanks lying substantially at a right angle, whereupon the blank is bent, after rounding the edges of the flat surface, to form the angle profile.

Abstract: A mill roll balance system for incorporation within a rolling mill is provided. The balance system includes a rigid beam assembly for guiding a portion of the mechanism utilized to stabilize the top roll and for preventing any resultant horizontal forces due to an unbalanced counterweight apparatus utilized to provide an upward force to the upper roll in the mill. A plurality of steelyard rods are provided and are continuous in their length from a point below the bottom of the roll housing through the housing to their upper terminus switches proximate the upper roll for providing the necessary counter-balancing upward force to the screw-down mechanism's downward force on the upper roll.

Abstract: A method for low temperature bonding of silicon and silicon on sapphire and spinel to nickel and nickel steel using a layered structure with an aluminum interface between the nickel or nickel steel and the silicon. The bonding is achieved in a reducing atmosphere using a temperature of 640 to 650 degrees C. with a pressure of 100 to 150 psi on the layered structure for a period of approximately five minutes with a subsequent cooling to avoid strains in the bond. An example of the transducer apparatus utilizing such a bonding technique includes a nickel steel housing and a silicon on spinel transducer wafer having a silicon peripheral pad with an aluminum layer bonding the silicon pad to the nickel steel housing.BACKGROUND OF THE INVENTION1. Field of the InventionThe present invention relates to bonding techniques. More specifically, the present invention is directed to a method for bonding silicon to nickel and a transducer apparatus utilizing such a bonding technique.2.

Abstract: The rollers of a push bench for the production of tubular blooms are axially displaceably journalled on respective spindles so that the rollers are centered by the bloom. For machining the working surfaces of the rollers, the rollers, or their shafts to which they are fixed, can be axially locked in position and the roller shaft has a releasable coupling for coupling the roller shaft to a drive motor or drive shaft, whereby all the rollers can be machined simultaneously without removing them from the stand.

Abstract: A method of rolling angular structural shapes with flanges of equal width, specially from steel, in which a substantially round bar or billet is rolled in a first pass to a generally flat intermediate shape having a planar side and a side formed centrally with an upstanding triangular cross-section protuberance. Thereafter, in one or more passes, preferably no more than three passes, the blank is rolled to the angular profile in which the vertex is formed by the protuberance.

Abstract: It is desirable for a pair of horizontal roll assemblies of a rolling mill to be withdrawn from the mill simultaneously with the longitudinal axes of the rolls parallel and substantially horizontal. If material is present in the mill there can be no connection between the bearing chocks on the drive side of the mill. When the roll assemblies have been withdrawn from the mill, a support vehicle is positioned relative to the roll assemblies so that the rolls can be supported on upper and lower support surfaces provided on the vehicle. The vehicle is the displaced away from the withdrawal position of the rolls so that replacement rolls carried on a similar support vehicle can be moved to a position from which they can be inserted into the mill.

Abstract: In a fence structure comprising upper and lower horizontal rails between which fence panels are disposed each of the fence panels is connected to each of the rails by a jointed structure, the jointed structure comprising a resiliently deformable V-shaped lip a first limb of which is presented by the fence panel and the second limb of which has a free edge, with the lip disposed, with the second limb resiliently deformed towards the first limb, within a recess in the associated rail. The lip is in contact with a bottom wall of the recess with a space provided between this bottom wall and the second limb of the lip, the free edge of which is in biting engagement with one side wall of the recess at a spaced distance from the bottom wall thereof, with the first limb of the lip in bearing contact with the other side wall of the recess.

Abstract: Disclosed is a holder which may be used for mounting equipment, such as sensing apparatus, within an otherwise closed environment, and an extractor tool for inserting and retrieving the holder and attached equipment. In an operating configuration the holder is double-sealed to a landing nipple mounted on the container against communication of high pressure fluid out of the container. With the extractor tool mounted and sealed on the landing nipple also, a placement member within the extractor tool may engage the top of the holder to extract the holder from sealing engagement with the landing nipple. Two independent gear boxes are provided whereby translational and rotational motions may be separately imparted to the placement member. The holder is anchored to the landing nipple by threaded engagement between the landing nipple and a drive screw section of the holder. A separate seal section of the holder is rotated during the insertion procedure until a preselected orientation of the seal section is achieved.

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.