Abstract: A grinding box for reducing the size of bolt heads and nuts from one size to another, preferably from metric standard sizing to American standard sizing, is disclosed. The grinding box includes a housing with a base, sidewalls, and a cover; an abrading mechanism, such as a power driven abrading wheel, positioned within the housing and beneath the cover; an opening through the cover providing access to the abrading mechanism; and a device for placing bolt heads and nuts in contact with the abrading mechanism such that their faces are abraded and the bolt heads and nuts are reduced to a predetermined smaller size.

Abstract: In the conventional process of manufacturing sheets of metastable austenitic stainless steel, a mechanical polishing step is included before or after the final temper rolling step. By insertion of this step, the fatigue resistance of the produced steel strips and sheets is remarkably improved.

Abstract: The adapter for the torquing tool includes an elongated body having a bore in at least one end to accommodate a driver bit and a coupling means for detachably attaching the body to the tool. A depth adjustment bushing is threadably engaged within said bore, with the bushing being externally threaded to engage the bore. The bushing includes a body section and a shank section. An axial passageway extends through the shank section and an axial slot extending through the wall of the shank in communication with the passageway. A screw extends through a radial threaded opening in the body and into the axial passageway through the slot so when the driver bit is housed within the body section and extends into the passageway, it is held in place by tightening the screw. In a preferred form, the passageway has a hexagonal cross section for mating engagement with a hexagonal end section of the driving bit.

Abstract: A disposable hot top board includes a compressible seal positioned along the outer surface of the board to form a seal between the bottom of the board and the mold wall. In a preferred form, the disposable hot top board comprises an insulating or exothermic material having a reticulated metal mesh embedded therein. A metal plate extends along at least a portion of the outer surface and a ceramic fiber strip extends along a bottom portion of the board. A perforated metal retention strip with a first end interwoven with the mesh and a second end extending outward from the board, is used with a big end up mold having a pair of slots. In addition to the standard internal wedge system, the board is forcibly retained against the ingot mold to compress the fiber strip into a seal by a rod which engages the metal retention strip in a wedging type relationship with the mold exterior.

Abstract: A converging lens system of the electron beam scanning device incorporates a condenser lens (or lenses), an objective lens and an aperture means being capable of changing the aperture diameter so as to produce an electron beam spot on a specimen and vary the electron beam current on the specimen. The optimum aperture diameter is determined based on the designated electron beam current and the accelerating voltage of the electron beam by means of a data processor, so that the minimum diameter of the electron beam is formed on the specimen.

Abstract: A monorail conveyor system in which an automotive cart comprising a drive wheel, a drive motor for driving the drive wheel, a gear case where output of the driving motor is reduced, and centering rollers rotatable on vertical axes, receives electric currents and control signals from a hollow rail and travels along the hollow rail. The driving motor has an output shaft extending in the forward-rearward direction of travel.

Abstract: Apparatus for producing sample ions comprising means of producing metastable species by corona discharges in the carrier gas, a needle-shaped emitter whose pointed end is inserted into the stream of carrier gas which transports said metastable species, means for applying a high potential to said needle emitter, wherein sample is arranged adjacent to or deposited on the pointed end of said emitter. Its value is further enhanced when it is combined with a mass spectrometer.

Abstract: In a lateral file of the receding door type, the improvement comprising support means retained on the underside of a receding door for engagement with the front file frame vertical edges to retain the door in a horizontal position as a posting shelf. The support means includes left hand and right hand support brackets which are retained against the recessed door inner surface, are manually movable into engagement with the file frame and are automatically returnable to the door inner surface to permit door closing or receding door movement into the file frame.

Abstract: A scanning electron microscope has a specimen chamber in which there are mounted a specimen moving mechanism and an optical microscope for observing a transmission optical image of a specimen. The optical microscope includes an objective lens unit and an eyepiece unit mounted on a cover of the specimen chamber, to which the specimen moving mechanism is also attached. This arrangement facilitates switching between various modes of specimen observation on the scanning electron microscope.

Abstract: A hot strip mill having a final reducing stand and runout cooling means downstream of the reducing stand includes an incubator capable of coiling and decoiling the hot strip. The incubator is located intermediate the runout cooling means. In a preferred form the final reducing stand is a hot reversing mill. A second incubator and/or a temper mill and/or a slitter may be positioned downstream of the first incubator. The method of rolling includes isothermally treating the strip within a predetermined time and temperature range in the incubator prior to subsequent processing. The subsequent processing may include any one or more of the following: further deformation by cold rolling, temper rolling or cooling at a desired heat loss rate.

Abstract: A brake valve control safety device adapted to be secured to the dashboard of a motor vehicle includes a push-pull switch assembly having a body member, a stem extending through the body member and a knob on the stem, and means on the body member, stem or knob for releasably locking the assembly to prevent release of the vehicle brakes by accidental movement of the valve stem and knob.

Abstract: An apparatus for gas pressure bonding, hot isostatic pressing or the like in which a workpiece may be treated at elevated temperatures and pressures comprises an elongate cylindrical pressure vessel for enclosing a furnace. The furnace comprises an insulated bottom and an insulated hood with openings near the top and bottom. The insulating hood rests upon the bottom for enclosing a workspace. Means for heating the workspace and means for cooling the pressure vessel are provided. The improvements according to this disclosure are means for establishing a first circulating flow of pressurized fluid down along the interior of the pressure vessel wall, means for establishing a second circulating flow of pressurized fluid down through the workspace.

Abstract: A mammary prosthesis comprising an envelope of an inert elastomer for containing an inert fluid material. The envelope is composed of a plurality of firm protuberances distributed substantially equally thereover. These protuberances may be platelike, ridges, tubes, or posts. The protuberances may be in one or more layers and may be covered with an outer envelope of inert elastomer which may be perforated or in the form of a web. The protuberances provide therebetween flow spaces such that when the scar capsule contracts and compresses the protuberances, the mammary prosthesis will have a space for displacement and remain soft. The protuberances further provide greater localized pressure in pounds per square inch against the scar capsule for a given amount of massage exercise done after surgery. Since scar stretches in response to pressure, this reduces the amount of scar contracture of the capsule.

Abstract: A protective refractory member for protecting heat-absorptive elements in a high-temperature furnace comprises a refractory shape, an interconnected, reticulated metal mesh embedded within the shape and positioned substantially adjacent an inner surface of the shape and at least one opening extending through a thickness of the shape and through the mesh. A tubular insert is located within the opening and is welded to the spirals which define the mesh. Both the insert and certain of the spirals engage the heat-absorptive element and the insert is welded to the element to retain the member thereto.

Abstract: A continuous meat processing line having a patty-forming machine at the inlet end, a cooking portion, a transfer section, a quick freeze section and a packing section at the outlet end. The cooking portion has a first cooking section adjacent to the patty-forming machine and a second cooking section in line with the first cooking section. Each cooking section has a conveyor belt for moving patties through the cooking section. A plurality of heating units are spaced above the conveyor belt in each cooking section and a plurality of individual radiant heaters are located in each heating unit. A water tray is located below each conveyor belt and a drain trough is connected with the water trays.

Abstract: A capacitive discharge ignition system for an internal combustion engine and for use with a generator powered current source comprises a storage capacitor, at least one thyristor for discharging the storage capacitor to transfer energy to at least one spark plug and a trigger circuit for gating the at least one thyristor in synchronism with an internal combustion engine with which the ignition system may be associated. The improvement according to this disclosure comprises the storage capacitor is discharged through a diode circuit, a solid state device for switching the output of the generator to ground, a circuit sensing flow in the discharge diode circuit and generating a discharge signal indicative thereof, and a circuit gating the solid state device into conduction in response to said discharge signal.

Abstract: A mini hot strip mill comprises three close coupled mill stands including a first and second four high finishing mill and a two high roughing mill positioned therebetween. A first coiler furnace is positioned upstream and a second coiler furnace is positioned downstream of the mill. The mills may each be retained in their own mill housings or the finishing mills may be in separate housings and the roughing mill may be retained in supports connecting the finishing mill housings. The mills are closely spaced so that the finishing mills are maintained open while operating in a roughing mode so as to allow free passage of the slab being reduced and the roughing mill is maintained open while the two four high mills are operative in a finishing mode. Two motors connected through a gear box to said mill provide for independently driving the finishing mills in speed coordinated relationship and for jointly driving the roughing mill.

Abstract: A mass spectrometer and process for using same comprises an ion source, a first field, a second field and a field-free region between the first and second fields. Parent ions are mass-selected by said first field and daughter ions are formed in the field-free region by ion dissociation or ion fragmentation. The daughter ions are dispersed by the second field. Superimposed electric and magnetic fields are used as the second field, the intensity of said magnetic field being changed from a first stage to a second stage and the intensity of said electric field being swept under both stages. Both energy and mass of the daughter ions can be measured by this mass spectrometer.

Abstract: A container having a shell with an open front forming a storage compartment and a door pivotally connected to the shell to close the front of the storage compartment. A slide having a contact leg at its rear edge is located at the bottom of the storage container and is pivotally connected at its forward edge to the door. The pivotal connection between the slide and the door is located above the pivotal connection between the door and the shell when the door is in the closed position. When the door is pivoted into the open position, the slide is moved forwardly out of the storage compartment by the pivotal connection between the forward edge of the slide and the door and the contact leg on the slide contacts an item resting on the slide to move the item out of the storage compartment.

Abstract: A new variety of Ulmus parvifolia is characterized by its rapid growth rate, propagation rate and its leaf appearance which is dark, leathery and semi-glossy in comparison to other varieties.