Abstract:
A plurality of elongated, magnetic flux conducting structures magnetically spaced adjacent the sides of a cell for producing molten aluminum by electrolysis. The magnetically spaced, flux conducting structures are effective to shield the cell from and to substantially reduce the strength of a magnetic field component extending within the cell in a direction substantially parallel to the length dimension of the elongated structures without substantially affecting magnetic field components extending in directions other than the magnetic field component extending parallel to the elongated structures.
Abstract:
A hand tongs device providing a single workman with the capability of handling a workpiece, such as a forging, while simultaneously lubricating the dies of a press. The device comprises a pivotal set of hand tongs, at least one handle of which is a hollow tube, the hollow tube handle having nozzle openings in the wall thereof adjacent finger portions of the tongs employed to grasp a workpiece. At the other end of the hollow handle, and connected in fluid communication therewith, is a hand operable valve device, for permitting the flow of lubricant through the valve handle and openings from a pressurized source thereof, when the valve is opened.
Abstract:
APPARATUS FOR FEEDING ALUMINA TO AN ALUMINUMPRODUCING ELECTROLYTIC CELL INCLUDING A FLUIDIZATION TYPE CONVEYOR COMMUNICATING WITH A SUPPLY OF ALUMINA AND HAVING FEED ORIFICES IN ITS SIDE WALL FOR FEEDING ALUMINA INTO THE ELECTROLYTIC CELL ADJACENT VERTICALLY RECIPROCAL PLUNGERS WHICH BREAK THE CRUST ON THE SURFACE OF THE CELL. THE FLUIDIZATION CONVEYOR HAS A POROUS HOSE IN IT FOR INTRODUCING AIR INTO THE ALUMINA TO FLUIDIZE THE ALUMINA SO THAT IT WILL FLOW THROUGH THE CONVEYOR. MEETING APPARATUS WITH FLUIDIZING VALVES THEREIN IS ALSO PROVIDED BETWEEN THE ALUMINA SUPPLY AND THE CONVEYOR FOR SUPPLYING MEASURED QUANTITIES OF ALUMINA INTO THE CONVEYOR FOR FEEDING THE CELL.
Abstract:
Aluminum tubes such as those employed in refrigeration and air conditioning systems can be soldered without flux using ultrasonic energy provided the joint configuration is properly controlled and the ultrasonic pluses are applied in a controlled positive fashion.
Abstract:
Sheet panels are connected to building structural framing by attaching them to a spline which has a sliding fit with a clamp fastened to the framing, thus permitting movement of the panels relative to the framing.
Abstract:
A wall construction including a first rigid panel engaging a first elongated spline extending lengthwise of the panel and facing to one side thereof, the spline having elongated shoulder portions for engaging a second rigid panel on one side thereof. An elongated T-shaped spline is connected to the first spline via a web portion thereof while flange portions of the T-shaped spline engage the side of the second panel opposite to and in alignment with the shoulder portions of the first spline. This combination provides a firm, rigid structure for driving a fastening means through the flange portions of the T-shaped spline for securing a third panel to the second panel via the flange portions.
Abstract:
A tool pack assembly for an ironing press for forming thinwalled container bodies including a die block having an open slot herein for receiving a plurality of ironing rings which are secured in the die block by means of an axially expandable hollow jack screw, with the die orifices in the rings in co-axial alignment with the press mandrel. Spacer rings are provided between the ironing rings and have means associated therewith for introducing lubricant around the entire periphery of the container body prior to movement of the body through successive ironing rings.
Abstract:
An aluminizing alloy consisting essentially of about 0.75 to 4.0 percent manganese and the balance aluminum and impurities. The alloy when applied to a ferrous article by immersion of the ferrous article in a molten bath of the alloy providing a surface coating of higher brightness and uniform smoothness. The impurities may include up to 0.20 percent silicon, up to 0.35 percent iron and up to 0.02 percent copper. A composite article having a ferrous core and a coating of the aluminum base manganese alloy. A method of producing a hot dip aluminized ferrous article having a bright finish comprising providing a molten bath of an aluminum base alloy at about 1,250* to 1,400* F. and immersing a ferrous article in the bath for about 1 to 6 minutes. The aluminum base alloy consisting essentially of 0.75 to 4.0 percent manganese and the balance aluminum and impurities.
Abstract:
This disclosure relates to an easy-opening container end in which the opening device remains attached to the end after opening, and which includes a V-shaped opening flap in the container end which is forced or plunged into the container by means of a lever tab which has a line of weakness in its upper surface between its handle end and its nose end so that upon opening, the handle end of the tab may be depressed to a nonobstructing position on the container end without closing the pouring orifice in the end.