Abstract: A method and apparatus for improving the interior or exterior surface smoothness of a tube shell during cold draw operations is disclosed wherein the final reduction of the tube shell is completed within the die land.

Abstract: A closure for a container wherein a tape having a metal part and thermoplastic material which is applied to the container wall and heated. Most of the material is squeezed out from between the metal part and the wall into a rib which is formed during application. The material in the rib has an isotropic structural characteristic since the rib formation provides a region into which the excess material is directed minimizing the shearing effect of the flow of material along the interface with the container wall. Also the rib reinforces the tape in the critical region to resist pressure of gasses in the container when used to contain carbonated beverages. This patent covers a method of making the above described closure.

Abstract: Apparatus for removing residual stresses produced in a tube by seating the tube in a bore in a tube plate, the tube having one end flush with one face of the tube and extending from the other face and being seated in the plate by expanding and rolling the tube at the level of the plate up to a transition zone in the region of emergence of the tube from the other face of the plate, the apparatus comprising an elongate tubular element having a cage at one end provided with longitudinal recesses housing radially movable wheels and a control rod which is axially movable in the element to cause the wheels to project radially from the cage and rotatable to rotate the wheels, the portion of the rod in contact with the wheels being conical and the axes of the wheels being inclined to the axis of the tubular element, an adjustable stop for precisely positioning the wheel cage at the level of the transition zone of the tube, and control means for causing axial movement of the rod to bring the wheels into contact with t

Abstract: The present invention comprises a method of erecting an elevator system for a building comprising fabricating an elongate elevator shaft framework section, and mounting the framework section in an upright position at the building site. After construction of at least a part of the building, an upper portion of the framework section is secured to the building. An elevator car and elevator accoutrements may be installed in or on the framework section prior to mounting thereof and/or prior to construction of the building and securing of the upper part of the framework section thereto.

Abstract: A safe box-like structure of good appearance is formed in a simplified manner from a flat metal sheet by folding at right angles the opposite side portions of a flat rectangular metal sheet, for instance, of a steel sheet to provide a channel-shaped metal sheet, forming in each end portion of the upright side sections of the channel-shaped metal sheet a diagonal crease extending from an inner end of a prescribed vertical fold line disposed substantially perpendicular to the bottom section of the bottom section of the channel-shaped metal sheet to the outer corner point of the end portion of the side section, pressing a triangular intermediate section between the prescribed vertical fold line and the diagonal crease inwardly of the channel-shaped metal sheet, folding the triangular intermediate section and an outer triangular section toward each other along the afore-mentioned prescribed vertical fold line and diagonal crease, and upbending opposite end portions of the channel-shaped metal sheet at right angle

Abstract: The stationary die of a thread rolling machine is mounted in a holder which enables the stationary die to be tilted relative to the movable die about an axis which coincides with the upper edge of the thread forming face of the stationary die. The upper edge of the die thus stays stationary when the die is tilted and remains in a fixed position relative to a track which guides fastener blanks between the dies.

Abstract: The present apparatus and method make it extremely easy for a worker, even when located in a manhole or on a telephone pole, to rapidly achieve a perfect break in an optical fiber and at a precisely predetermined position relative to a connector means. The breaking is the same, regardless of the upright, inverted or inclined position of the tool. Only a single motion of the blade is required at any desired speed, and there is no necessity for the blade to contact the fiber at a pressure within certain limits. These and other major results are obtained by clamping an optical connector element to the optical fiber before breaking is effected, and then removably securing the connector element to the breaker at a precisely known position which is correlated to the location of the scoring blade and to the characteristics of the connector.

Abstract: A continuous mill has a plurality of passes arranged in series and formed by work rolls which are mounted on shafts secured to common chocks accommodated in housings.The chocks provided in the mill are equal in number to the workrolls forming a pass. Each of the chocks has two sides converging at an angle, and the shafts carrying the workrolls are cantilevered to each of said sides. The shafts secured to one side are offset relative to the shafts secured to another side so that the adjacent passes are spaced in closest possible proximity with one another; the angle between the sides of each chocks being equal to the divergence angle of the adjacent passes.

Abstract: Process for making wrought, recrystallized, leadcalcium, battery grid alloy having high temperature tensile strength stability and excellent corrosion resistance involving rapidly, unidirectionally, cold rolling a cast lead alloy strip containing about 0.07% to about 0.11% by weight calcium and up to about 1.5% by weight tin. The rolling of the alloys is done such as to strain harden them before any significant strain aging thereof can occur during rolling and such that the strip recrystallizes at room temperature to a fine grained microstructure within about 30 days after rolling; has both room and high temperature (i.e., 150.degree. F.) tensile strength stability greater than 5000 psi; and has small islands of a structureless phase distributed throughout the microstructure for reducing intergranular corrosion. Alloys containing up to about 0.35% tin may be rolled by a variety of schedules to produce this result. Alloys containing over 0.

Abstract: A draw or ironing die assembly includes a housing having a minimum modulus of elasticity of 50,000,000 p.s.i. and an axial hole therethrough. A die wear ring of greater elastic modulus and greater hardness is shrunk fit into the axial hole. Tungsten carbide is a suitable material for each part.

Abstract: An apparatus for punching openings in tubing (T) includes a stationary mandrel (50) having a guide aperture (142) through the walls thereof and adapted for insertion within the tubing to be punched. A moving actuator (110) having an inclined ramp (130) on one end is receivable within the stationary mandrel. A punch (134) is provided having an inclined end for engagement on the inclined ramp of the moving actuator and an opposite end for engagement through guide aperture (142) in the wall of the stationary mandrel. A T-shaped slot (136) is provided on the inclined end of the punch and a corresponding T-shaped ramp (132) is provided on the inclined ramp of the moving actuator. The engagement of ramp (132) in slot (136) provides for sliding engagement of the punch on the actuator. T-shaped slot (136) and ramp (132) are symmetrical about a plane through the longitudinal axis of the punch and the moving actuator. A stop bar (56) extends to one side of stationary mandrel (50).

Abstract: Apparatus for moving a tube bundle out of or into a heat exchanger shell consists of an elongated frame structure including a pair of parallel spaced beams, a mobile carriage to support the tube bundle and mounted on the parallel beams for movement along them, clamps to connect and lock the elongated frame structure to the shell of the heat exchanger, a mobile sub-frame carrying a hydraulically-operated force-exerting mechanism to be connected to the tube bundle to move it out of the shell, and laterally positioned stops along the length of the frame structure to provide opposing thrust surfaces to the thrust exerted by the force-exerting mechanism so as to effect movement of the tube bundle along the frame structure.

Abstract: A method of removing a track pin from a track shoe comprising the step of tating and advancing an annular cutter element into a rubber bushing that surrounds the pin. The teeth of the cutter element shred the rubber into particulates that can be removed during withdrawal of the cutter element from the annular space between the pin and track bore.

Abstract: An apparatus and method of cold finishing of metals wherein a metal workpiece having a repeating cross section is advanced between a plurality of pairs of rollers and is driven through a die or cutting tool. The apparatus includes entry vee guides, a gimbaled die or cutting toolholder, special dies, and a special exit guide. The method results in bars having the usual cold finished qualities of accurate size, smooth surface finish, and uniform shape with the added quality of uniform residual stresses.

Abstract: A small size, portable bender operable from a domestically available A.C. source of the order of 100 V having the drive shaft turned through the intermediary of a clutch from a motor to perform a bending operation. Bending angle control means are provided to regulate the clutch to discontinue the bending operation at a desired angle. The bending angle is preset by angle preset means which may be locked in the preset position.

Abstract: A dieless method of hot forming a hole through a metal part comprising locally heating the part followed by indenting opposite sides of the part and extruding the displaced metal centrally of the indentations to form a thin annular wall section between the indentations and then punching out the thin wall section to complete formation of the hole.

Abstract: A mill stand for steel rolling has a mill housing which allows installation and removal of a roll assembly in a direction transverse to the intended direction of steel through the mill stand. The housing is provided with means for locating and clamping the roll assembly in place and for releasing said clamping to allow removal of the assembly.

Abstract: A rolling device or mill having a controlled deflection roll possessing a fixed support and a radially movable roll shell rotatable about the fixed support. Between the roll shell and the material to be rolled there is located an intermediate roll having journals supported at the framework by means of pressure sensors or feelers. The contact force of the controlled deflection roll is regulated such that the journals of the intermediate roll are load relieved. There is thus formed a compensation between the contact force of the roll and the reaction force of the material. The support of the journals in the framework can be adjusted in dependency upon the measurement of the thickness of the rolled material.

Abstract: In the straightening machine of the invention, pivot plates are provided for mounting and pivotally supporting the upper movable rolls including the pinch rolls and the straightening rolls, whereby improved operation can be obtained. Expensive manufacturing costs can be reduced by employing pivot plates as disclosed by the present applicant. The task of maintenance is also reduced since fewer hours are needed for repairs whereas roll bearing capacity is materially increased. The pivot plates are pivotally supported by the side frames respectively having location adjacent the inside surface of the side frames and bearing units are mounted in the free ends of the pivot plates. It is possible to stagger the bearing units since the bearing units for the lower rolls are mounted for rotation in the side frames whereas the bearing units for the upper movable rolls are mounted in the pivot plates.

Abstract: A method of controlling a rolling mill in which eccentricity of the roll assemblies of the mill and variations in the thickness and/or hardness of material entering the mill ordinarily adversely affect the gauge of the material leaving the mill. The method involves the steps of slowly eliminating the cyclic effects of roll eccentricity on the exit gauge of the material while simultaneously correcting for the adverse effects of incoming gauge variations. This is accomplished by continually estimating a change in exit gauge using the standard gaugemeter equation but correcting the equation with continuing estimates of backup roll eccentricity, until the cyclic effects of such on exit gauge are essentially reduced to zero.