Abstract: A method for manufacturing a battery having a temporary side terminal cast integrally with the permanent side terminal.

Abstract: Apparatus is provided for forming sheet metal ducts of varying conical configuration from pre-cut blanks having a baseline and element lines thereon. The apparatus comprises a frame supporting independent axially aligned feed rolls. Each roll is power driven by separate variable-speed motors providing for a different feed rate at each edge of the blank being formed. The driven sections of each feed roll are adjacent at the center of the axially aligned rolls. Idler rolls around the drive shaft form the remaining length of each roll. Corresponding segmented pinch rolls spaced axially at the center are arranged to pinch the blank to be formed against the feed rolls. Sensors are positioned between the spaced ends of the pinch rolls to detect the position of the blank baseline and the angularity of the element lines. The feed and pinch rolls are mounted on bases provided with bearings permitting axial shifting to maintain the blank baseline at the established position relative to the frame.

Abstract: A method of producing, by universal mills, H-beams which are excellent in the strength and toughness of the joint between web and flanges. In roughing process, symmetric convexes, which have substantially the same cross section and differ in position in different mills, are alternately formed on at least either of the outer and inner sides of the web and flanges of the piece being rolled, to forcibly cause metal flow in the joints between web and flanges and thereby to increase the amount of strain of the joints. In finishing process, the convexes formed in the roughing process are pressed, thereby obtaining a H-beam having predetermined dimensions.

Abstract: Electrochemical power cells having a cathode current collector, a combination liquid active cathode depolarizer electrolyte solvent and an anode that forms surface compounds when in intimate contact with the liquid cathode are enhanced by the addition of a passivation limiting film contiguous to said anode. The passivating film is a member of the cyanoacrilate family of organic compounds.

Abstract: For filling sodium into the sodium reservoir of a sodium-sulphur cell, the reservoir is closed except for an open-ended metal filling tube. In a filling machine, the cell is heated to a temperature such that the sodium will remain liquid, the tube is temporarily sealed around a sodium outlet of the filling machine by an inflatable seal, the reservoir is evacuated of air, flushed with an inert gas and then evacuated for vacuum filling with a metered quantity of sodium through a sodium feed tube within said outlet and extending downwardly into the filling tube. The sodium is pressurized using an inert gas to force the sodium into the cell, the gas is evacuated and the filling tube on the cell sealed by pinching and welding.

Abstract: A rolling process wherein a pair of working rolls are driven at different peripheral velocities so that the peripheral velocity ratio may be varied, and the peripheral velocity ratio is so controlled that the rolling torque of each of the working rolls may be within a maximum tolerable torque which the working roll may transmit, thereby reducing the rolling force.

Abstract: A restraining assembly for holding back and then releasing a mandrel which supports a tube being rolled in a rolling mill has a fork supported by a carriage which is driven by two endless chains. The carriage is articulated to two opposite links of the chains and the separation of the fork from the mandrel takes place as the chains run around end wheels and the carriage is tilted. To control this movement of the carriage the fork is at the forward or downstream end of the carriage and an additional connection is provided between the carriage and another link of at least one chain, preferably with play in the direction of movement of the chain.

Abstract: A film of organic electron donor material is formed to a predetermined thickness and shape and then the preformed film and a lithium element are pressed together in a manner bonding the film to the surface of the lithium element to form a coated lithium anode. During the pressing operation, the surface of the lithium element can be shaped to include formations such as corrugations which serve to increase the surface area thereof, and the pressure bonded film is of substantially uniform thickness over these formations. The resulting coating also is substantially free of voids so as to be of substantially uniform solidity. An entire coated anode assembly is formed in one pressing operation, so that bare lithium is not subjected to prolonged atmospheric exposure which, in turn, reduces or substantially eliminates the possibility of nitride formation on the surface of the lithium element which is coated simultaneously while being pressed.

Abstract: A composite electrode having a structural electrode member with at least a portion of one surface of the electrode member constructed from a continuous matrix of an anodically passivatable metal infiltrated by a metal capable of forming an electroconductive oxide and having the infiltrating metal at the electrode surface oxidized such that an electric current path is provided through the oxidized surface of the matrix metal. In one embodiment the matrix metal is an electrochemical valve metal, e.g., titanium and the infiltrating metal is lead. Applications for the composite electrode include battery grids and electrochemical processing electrodes.

Abstract: Piezoelectric transducers are mounted on support members of a gag press for sensing pressure vibrations arising in a workpiece in part as reflections of an initial pulse produced by the striking of the workpiece by a press ram at the initiation of a straightening operation. An electrical circuit is connected to the transducers for analyzing the sensed pressure waves and for comparing the analyzed waves to pre-established sound-threshold data stored in a memory. Upon detecting pressure waves indicative of an internal structural flaw in the workpiece, a microprocessor in the electrical circuit signals a ram drive to raise the ram and thereby terminate straightening operations, the defect-bearing workpiece being transferred to a scrap store or to a heat treatment plant by a sorter according to signals from the microprocessor.

Abstract: Method and apparatus for splitting a single metal rod into three equal cross-section areas by passing the rod through pairs of rollers to form three connected equal areas, but not identically shaped strands, then applying a separating force to separate the rods into individual lengths.

Abstract: A battery cell assembly system is characterized by an apparatus for automatically packaging battery plates in separator material, and for then positioning a plurality of the plates side by side in an open ended outer container of the cell to alternate negative and positive plates. The apparatus has a casting station whereat lugs on plates of like polarity are joined and posts added to the cell, and a sealing station at which a cover is placed on the open end of the container to complete the cell.

Abstract: The hot rolling of metal slabs to strip thickness and in coils having a specific weight on the order of 500 pounds per inch of width and greater comprises passing a heated metal slab through a roughing mill to form a transfer bar. The transfer bar is immediately passed between work rolls of a reversing finishing mill stand where it is coiled in a furnace downstream of the reversing finishing mill stand. Thereafter, the workpiece is passed back through the reversing finishing mill stand and coiled in a furnace on the upstream side thereof. The workpiece is again passed through the reversing finishing mill stand and into the remaining finishing stands where it is further reduced and ultimately coiled in strip form. The first two passes through the reversing finishing mill stand are carried out at speeds in excess of the third pass and unrelated to the speed cone of the remainder of the continuous finishing stands.

Abstract: The stand-to-stand transmission ratios between the working sizing passes at the entry end of a rolling block for rolling bars, rods or wire are fixed but are different from one another. This enables an entire range of finished workpiece cross sections to be obtained from a given first pass workpiece entry cross-sectional area, merely by omitting one or more of the working stands and shifting other working stands from one location to another and by changing only the stands of the finishing sizing passes at the delivery end of the block.

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: The machine has a base provided with three rollers between which cambered strip steel is passed to remove or reduce the camber therein. Two of the rollers are mounted extending above the top surface of the base along a longitudinal axis of the base. The third roller is mounted also extending above said top surface on a block which is slidable along a slot extending along the lateral axis of the base. The cambered strip steel is passed across the top of the base between the three rollers. A drive mechanism is provided to apply a force to the third roller which bends the cambered strip steel against the two rollers to remove or reduce the camber. Removable guide strips of a case hardened or other suitable metal are provided in the top as bearing members for the strip steel. The base may be fabricated of assembled components or cast as an integral member for cost economy.

Abstract: A deflector roll for a strip mill is divided axially into sections to be able to measure the distribution of the strip tension across the strip width. To avoid transmitting the measuring signals from movable parts, the sections of the deflector roll are supported by rollers journalled in stationary holders, the force-measuring transducers being built into the holders.

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.