Abstract: An adjustable pad hydraulic lift structure has a vehicle engaging and supporting pad vertically movable by a hydraulic piston, the pad being mounted on a bolster and having load transfer blocks facing downwardly for engagement with the bolster to transfer vehicle load from the pad to the bolster. Supporting and guide rods on the bolster and bearings on the pad cooperate to support the unloaded pad for adjustment into selected position over the bolster, and while supporting the unloaded pad maintaining the pad at an elevation wherein the load transfer blocks are supported free of the bolster to permit free adjustments of the pad. The supporting and guide rods are yieldable when the pad is under vehicle load to permit the load transfer blocks to engage the bolster for load transfer from the pad to the bolster.

Abstract: To improve the control over resistivity of grown single crystalline ingots, to reduce the turn-around time between growth of successive ingots in a particular crystal grower and to enable recycling of otherwise junk material, a sample of a molten material (the "melt") from which the ingot is to be grown is withdrawn from the crystal grower, cooled, and analyzed. Based on the analysis, controlled additional amounts of the material and/or a dopant impurity are added directly to the melt to restore it to a desired chemical composition. Thus, avoidable is costly and time-consuming cooling of the melt and restarting the system with a completely new charge of material and impurity, and achievable is uniformity of resistivity among the successively grown ingots. Preferably the sample is withdrawn from the melt into a quartz tube which is inserted into the system through a port.

Abstract: A precast reinforced insulating member and a method of manufacturing same. The reinforced insulating member is used for covering a furnace pipe or the like and comprises a body of insulating material, a plurality of reinforcing coil members and weldable lugs secured at each end of the reinforcing coil members. The body of insulating material has an arcuate shaped inner surface adapted to extend in intimate contact with the surface of a furnace tube in use and a pair of transverse side faces. The reinforcing coil members are embedded in the body and extend circumferentially thereof at longitudinally spaced intervals along the length of the body. Each of the coil members has oppositely disposed ends thereof disposed at adjacent side faces of the body. Passages open through the body between the inner and outer surfaces thereof adjacent each end of each reinforcing coil member. The weldable lugs are secured to each end of the reinforcing coil member.

Abstract: A carton provided with an integral, pivotable carrying handle on the top wall. The handle is die-cut in a blank of paperboard stock used to form the carton. When the carton is erected, the handle can be pivoted from a sustantially flat stored position on the top wall to an upright use position for carrying the carton.

Abstract: A digital data acquisition system wherein a succession of electrical impulses whose frequency is characteristic of an operation to be measured is compared with a reference electrical pulse series.

Abstract: Quartz resonator with electrodes that do not adhere to the crystal. Quartz resonator having improved medium-term and long-term stabilities and permitting easier placing on frequency. The resonator comprises, inside a tight housing 1, a condenser formed by two disks 3, 4 made of a dielectric material and separated by a removable ring 2 which determines the spacing between the disks 3 and 4. Electrodes are formed by metallization on the faces of the disks 3 and 4 located opposite a quartz crystal 1 enclosed in said condenser. The spacings between the crystal 1 and the disks 3 and 4 are considerably less than 1 millimeter. Application, for example, in the fields of telecommunications and radars.

Abstract: An improved anti-dust helmet comprising a shell spaced from the wearer's head by a supporting harness and provided with a transparent visor sealed at the sides to the wearer's face. Between the helmet shell and the wearer's head there is a sealing member extending continuously from the visor seals around the upper occipital part of the wearer's head. The sealing member is formed of a soft and resilient material and is so formed that the edge of the sealing member that rests against the wearer's head approaches the head at an acute angle. The sealing member may be fabricated or moulded from natural or synthetic rubber or from other elastomeric materials.

Abstract: An irreversible heat-activatable switch includes a heat-shrinkable plastic sleeve and a pair of elongate resilient electrical conductors mounted in cantilevered manner within the sleeve interior. The conductors have a pair of diverging-converging (e.g. arcuate) portions including regions proximate the sleeve. Each arcuate portion extends from the mounted end portion of its conductor and terminates in another end portion provided with an electrical contact. The end portions are so opposed that the open-closed electrical circuit character of the pair of contacts irreversibly changes responsive to movement of the arcuate portions resulting from heat-shrinking the sleeve.

Abstract: An internal pipe cutter of simplified construction allows easy conversion from a large-diameter pipe cutting configuration to a small-diameter pipe cutting configuration. An arm carrying a pressure roller assembly is pivoted to a body part carrying a rotatable cutter. The pressure roller assembly is pivotable from one side of the arm to the other for accommodating different pipe sizes. The body is adjustably mounted in a support member carrying a diameter adjusting screw, a depth adjusting set screw and a handle.

Abstract: A non-composite impact-resistant structure of lightweight construction is particularly useful in offshore power stations where weight is a prime consideration, and also is useful as the roof of inland power stations. The structure is fabricated from two types of sheet metal units and reinforcing elements which are enclosed thereby. An inner cellular panel is secured to outboard members of a building framework. The cells of the inner cellular panel extend vertically or horizontally when used as a wall structure or may reside in a generally horizontal plane when used as a roof structure. Outer corrugated panels (or outer cellular panels) are secured outboard to the inner cellular panel with the corrugations (or cells) of the outer panel perpendicular to the cells of the inner panel. The inner cellular panel cooperates with the outer corrugated panels to define passageways providing peripheral metal enclosure for reinforcing elements.

Abstract: A bound volume and a method of making the same is disclosed. The bound volume incorporates a bar extending along the length of the spine of the volume and secured to the spine. A pair of end caps are provided which allow the bound volume to be hung in a convenient manner. The end caps engage the ends of the bar, which extend from the bound volume, and may be removed to allow convenient use. The end caps include surfaces for either slidably engaging rails or hookingly engaging bars.

Abstract: Apparatus is disclosed for folding an articulated agricultural implement such as a multisection plow in order to facilitate movement of the implement from field to field along available roadways. Stability in the folded condition and minimization of the number of hydraulic cylinders required are achieved through the use of a gravity operated lock arrangement associated with adjacent sections of the foldable wing frame units of the implement. The number of locks and hydraulic cylinders depends upon the total number of hinged sections used to form the base and wing units of the frame assembly. The inboard hydraulic cylinders are pivotally connected to respective draft beams on the base unit and each acts directly between such beam and the associated wing unit.

Abstract: A self-purging, hydraulically actuated electrical connector for use in a hostile environment, such as in deep sea water, comprising an elongated receptacle having a tapered longitudinal chamber provided with longitudinally and radially spaced fixed electrical contacts and an elongated tapered member receivable within said chamber and provided with longitudinally and radially spaced contacts movable in a radial direction to engage the fixed contacts. Fluid pressure actuating means are provided for driving the movable contacts into engagement with the fixed contacts. Orientation means for the receptacle and the tapered member assure juxtaposition of the fixed and movable contacts. The arrangement of electrical contacts includes elastomeric protective covers configured and cooperable with the contacts to purge sea water from the immediate vicinity of the contacts.

Abstract: The invention relates to annular diaphragms for example for use in clutches, comprising a peripheral portion forming a Belleville washer and a central portion fragmented by slots into radial segments. By means of the method according to the invention, in order to obtain a reduced width for the open end of the slots, the two edges of the slots are produced in two separate operations, namely a first cutting operation in the course of which one of these edges is first formed and then a second cutting operation in the course of which the other edge is formed.

Abstract: A method for producing mechanical energy from geothermal brine in which a heat transfer fluid (HTF) is heated by direct contact with the hot geothermal brine in cocurrent flow through a series of flash stages which are maintained at successively lower pressures so that the HTF is vaporized in each stage. A working fluid is countercurrently flowed through the series of flash stages in indirect heat exchange with the vapor produced in each stage so that the vapor is condensed in each stage and the working fluid is progressively heated as it passes through the series of flash stages. The heated working fluid is utilized in a heat engine for the production of mechanical energy.

Abstract: A system is disclosed for storing signals indicative of a customer's consumption of a utility as measured by a meter, such as adapted to measure the flow of water, gas or electricity, for example, and for storing a corresponding data word to permit subsequent readout from the system of utility consumed and of a data word identifying the customer consuming the service, whereby the utility company providing the service may appropriately and accurately prepare a bill for the customer.

Abstract: Air forced through holes in a horizontally disposed platform is used to support a disoriented stack of rectangular sheets on a thin layer of air. The platform supports L-shaped manifolds disposed to be located about a supported stack of sheets. Each of the manifolds includes a chamber coupled to a fluid source and nozzle arrays communicating with the chambers to provide jets of air directed so as to impinge the edges of a stack of sheets pneumatically supported by the platform. The nozzles of each array are pyramidically disposed to provide an inverse relationship between jets impinging on a sheet of a stack and its distance above the platform. The jets provide air lubrication between adjacent sheets of the stack. Two of the manifolds are translatable and may be moved against the stack to tamp and align the air lubricated sheets thereof.

Abstract: This invention relates to a vehicle axle assembly comprising an axle, means for rotatably mounting a ground engaging wheel at each end of the axle, a fluid power brake mechanism mounted to the axle adjacent each end thereof, each brake mechanism being operative when actuated to restrain rotation of a wheel rotatably mounted at that end of the axle, a valve having a body, means providing a source of pressurized fluid to the body, conduits connecting the body to the brake mechanism at each end of the axle, relay means within the body being operable when actuated to modulate fluid pressure from the source to the brake mechanism, a wheel speed sensor mounted at each end of the axle, an annular sintered metal rotor press fitted on a hub rotatably mounted on each end of the axle and supporting the wheel, the rotor having a plurality of circumferentially and equally spaced notches, the notches so disposed on the rotor to angularly sweep by the sensor, the sensor adapted to generate electrical signals indicative of t

Abstract: A cracking reactor is controlled in response to the proportion of heavy aromatic constituents in a feedstock to be cracked.

Abstract: An improved method is described for solvent casting ultrathin non-porous methylpentene polymer films. The casting solution comprises methylpentene polymer of a mixture thereof with organopolysiloxane-polycarbonate copolymer dissolved in a solvent system and is characterized by being able to spontaneously spread over the surface of the liquid casting substrate. In a preferred embodiment, large-area films less than 200 Angstroms in thickness may be repeatedly formed. The solidified films remain relatively free of tensile stress during formation. The casting solution is deposited in a narrow, longitudinally-extending defined region at the surface of the casting substrate. The surface area and perimeter of the defined region are enlarged over the surface of the casting substrate in a manner whereby the casting solution is moved relative to the casting substrate and, after desolvation, the polymer film formed remains stationary relative to the casting substrate and relatively free of tensile stress.