Abstract: A method and apparatus of welding along a pass line on a steel workpiece, which method and apparatus comprises simultaneously feeding two welding wires in generally parallel relationship toward a workpiece with extended welding wires generally intersecting the workpiece at individual points spaced from each other a distance in the range about 3/16 inch to about 3/8 inch; then creating a separate arc between each of the wires and the workpiece; passing a single protective envelope of shielding gas axially along two welding wires simultaneously and around said two separate arcs extending between welding wires and the workpiece; and, causing relative movement between the two gas shielded welding wires and the workpiece in the direction corresponding to the desired pass line on the workpiece.

Abstract: A surgical dressing is constructed of a chest encircling flexible band formed primarily of a stretchable material with free overlapping ends that engage each other between the breasts of a person about which the dressing has been wrapped. The band includes differential support structure to provide more support for the sides of the user as compared with the remainder of the person about which the band has been wrapped.

Abstract: An especially configured, ringless, container-lid design is disclosed having improved sealing characteristics applicable to paint containers for the consuming public. The rim portion of the container is provided with a tapered, especially shaped wall section terminating in a curled bead which is received in a sealing groove in the lid. The container rim section is rigidized by a single protrusion in the form of a stiffening groove to prevent vertical collapse of the container. The lid has an inverted U-shaped groove sealingly engaging the container's bead. Extending from the inner wall segment of the U-shaped groove in the lid is a frusto conical wall segment extending radially-inwardly and vertically-upwardly to a flat, annular, radially-inwardly extending surface which in turn terminates in a downwardly-extruding frusto conical surface so that a raised collecting basin is formed in the lid.

Abstract: There is provided an improvement in a short circuiting arc welding system comprising a work station with a consumable electrode and workpiece, a D.C. power supply with a positive and a negative terminal, high frequency current control means for applying a welding circuit with a given time-based profile across the work station while the electrode is short circuited and while the electrode is spaced from the workpiece, a welding current circuit means including a first means for creating a first inductive reactance in series with the current control means and work station whereby the welding current follows the time-based profile in accordance with the first inductive reactance. The improvement comprises a background current circuit means between the power supply and the work station and in parallel with the current control means and first means for applying continuously a background current across the work station.

Abstract: The tension head of a strand carrier for a braiding machine comprises coaxial members, the first of which is fixed and the second of which is axially displaceable toward the first member, and a plurality of tension spring cartridges therebetween biasing the second member away from the first member. The spring cartridges are removable without disassembly of the fixed and movable members and each cartridge includes a spring guide supporting a compression spring in a precompressed condition in which the spring has a length considerably shorter than its uncompressed length. When the cartridge is in place, the spring is adapted to be further compressed from its precompressed length to bias the second member away from the first member.

Abstract: Apparatus for detecting changes of a medium along a measuring path in the medium, comprising several lightwave conductors arranged on a carrier, conveniently in a sleeve. Reflective ends of the light wave conductors are fixed at different distances along the measuring path. Type, extent, and location of longitudinal changes in the medium to be checked can be detected at any time by optical length measuring of the individual lightwave conductors by means of an optical rangefinder.

Abstract: In a blankable, foldable microwave reactive heat susceptor sheet stock of the type having two generally parallel surfaces and comprising a thin paperboard sheet with a laminated, continuous, microwave reactive layer including a microwave permeable support film with a microwave reactive layer including a microwave permeable support film with a microwave reactive stratum, there is provided an improvement comprising a graybody layer with an absorptivity over about 0.50 and microwave permeable with the graybody layer being applied coterminously with at least a portion of the parallel surfaces so that heat created by the interactive stratum will be absorbed and available from the graybody layer.

Abstract: A system for inflating and deflating pneumatic tires of a vehicle through pneumatically actuated tire isolating valves is disclosed which isolates air under pressure in the tires from the system and which utilizes electronically controlled valves for achieving opening of the tire isolating alves and inflating, deflating or checking the pressure. The system is improved by incorporation of a dump valve at each tire which permits rapid deflation of the tire pressure upon demand. The dump valve is tire and system pressure responsive and is integrated into the system in a manner to be responsive to any number of deflated tire pressures. The dump valve comprises a movable piston with two positions wherein the piston is releasably held in the second position by a mechanical detent until a suitable pressure differential occurs across the axial surfaces of the piston to cause the piston to be released from the detent and to move back to the first position.

Abstract: A rigid drive assembly for a telescoping mast is comprised of a pair of flexible link chains disposed at right angles to one another with respect to the pivot axes of the chain links and provided with interengaging latching elements which rigidly interconnect the two chains for movement along a linear path to extend and retract the mast. The two chains are spaced apart, and the latching elements interengage in the space between the two chains and include a plurality of latching plates on one of the chains extending transversely of the path and having openings therethrough in the direction of the path, and a pair of driving latch members for each latch plate engaging opposite sides of the latch plate and having a finger extending into the opening thereof.

Abstract: A closure for closing the folded open end of a bag comprises a tri-laminate of thin relatively rigid plastic material having planar opposite sides and an edge therebetween. The closure is provided with an opening through the opposite sides of the tri-laminate and an entrance passage to the opening from the edge and which entrance passage has a non-linear profile in the direction between the opposite sides of the tri-laminate. The closed end of a bag is introduced into the opening through the entrance passage which distorts the folded end of the bag to the non-linear profile, thereby frictionally holding the closure on the bag and perpendicular to the crease line of the fold.

Abstract: A storage reel for copper coated iron welding electrode wire comprises a tubular core of plywood having opposite ends and flanges of plywood at the opposite ends. A vapor barrier layer preferably having outer layers of aluminum foil and an intermediate layer of paper is bonded to the axially inner surfaces of the flanges to provide a barrier against the migration of moisture and other vapor contaminate in the wood material to the welding electrode wire wound on the reel. A method of constructing the reel is also disclosed.

Abstract: A rotary machine, having non-positive, displacement, which can be used as a pump, compressor, generator or drive turbine wherein the rotor is form by a particular combination of paddles and blades which improves fluid flow through the rotary machine. The paddle and blade configuration of the rotor utilizes the Archimedes screw principal to enhance the fluid flow characteristics and resist cavitation in the rotor chamber.

Abstract: An improved cast cylinder head for a high performance internal combustion engine is provided by an especially configured quench surface from which a contoured combustion chamber extends having a metal mass buildup shrouding the exhaust gases through the exhaust valve seat. A metal mass buildup configuration is also provided about the intake valve seat which acts in conjunction with an especially configured and proportioned valve intake passage to draw the fuel-air mixture into the combustion chamber in an unshrouded, helical flow pattern. The intake passageway configuration is such that a rich fuel-air mixture is drawn through the intake valve seat at a portion thereof remote from said exhaust valve seat while a lean fuel-air mixture exits the intake valve seat adjacent the exhaust valve seat. Positioning the fuel-air mixture in such a manner in combination with the unshrouded metal mass buildup minimizes short-circuiting of the fuel through the exhaust valve seat in a valve overlap condition.

Abstract: A system for use in sensing the oxygen content of an industrial furnace gas typically containing hydrocarbons or hydrogen is disclosed. The system utilizes a conventional automotive EGR oxygen sensor probe positioned in an especially configured housing employing downstream flow regulating means in combination with an orificing plate in the housing to provide uniform distribution of the endothermic gas at a low temperature about the sensor to insure accurate sensor readings with minimal carbon deposition. The electrical contacts at the oxygen sensor's inner and outer electrolyte surfaces are periodically switched to an electrical power supply to cause current to flow through and heat the electrolyte to elevated temperatures while air is flowed over the electrolyte's surfaces to achieve burn out of any carbon deposits and restore the life of the oxygen sensor probe.

Abstract: A vessel that encloses a chamber for drying a product containing moisture is provided with microwave radiation generating devices to elevate the temperature of the moisture in the product so that moisture escapes from the product. The vessel is also provided with a thermal radiator for directing infrared radiation toward the product to elevate the temperature of the product so as to contribute to the escape of moisture therefrom. The thermal radiator includes a plurality of metal heating plates which coplanar and spaced apart to provide openings therebetween to permit microwave radiation to pass to the product.

Abstract: An anti-theft device that is adapted to be connected adjacent to or on a battery of a motor vehicle and including a power switch for disconnecting the battery from its standard battery cable when current flowing through the cable exceeds a preselected substantial amount of current associated with an attempt to start the vehicle. A lockout circuit is actuated by a remote transmitter for generating an external command signal to override the operation of the power switch. This device can be attached directly to a battery without external wiring and still provide the passive or self-arming anti-theft device.

Abstract: A consumable welding element for arc welding comprising a steel sheath surrounding a compacted core containing metal alloying powders and an essentially 100% basic compound in an amount less than about 1.60% of the total weight of said element. The basic compound is calcium fluoride powder which is preferably in the range of about 0.1% to about 0.9% calcium fluoride powder by total weight of the element. As another feature the core of the element contains a specific agent for decreasing the amount of diffusible hydrogen in the weld metal. This new element may be a filler metal for TIG welding; however, it is preferably a consumable electrode for MIG welding.

Abstract: A reduced calorie, low acid (pH greater than 4.6) dessert topping having a water activity of less than 0.84 and comprising a blend of carrageenan gum, (with gelling and viscosity control) powdered cellulose bulking agent, a non-heat thinning gum cellulose bulking agent, high fructose corn syrup, a humectant and certain trace food additive amounts less than about 0.5%.

Abstract: A heat treat process is disclosed for use in an ion glow discharge chamber for carburizing ferrous workpieces. The process provides rapid carburizing cycles by optimizing the power supplied to the glow discharge correlated to temperature and desired uniformity of the carbon gradient profile while also optimizing the mass flow of the substantially pure carbon bearing gas which is correlated to the desired uniformity of the carbon gradient profile.