Abstract: In a shell investment casting process a reusable pouring cup form is used. The shell mold is built up around both the pattern and the pouring cup form. When the pattern wax is removed, the pouring cup form is also removed to leave a formed in situ pouring cup. A significant feature is that the pouring cup has a rolled lip that is relatively strong and does not tend to cast debris into the mold. This lip facilitates handling of the shell mold.

Abstract: Electrical and electronic components loosely mounted in a circuit board with their leads extending through holes in the board are temporarily stabilized in position in the board by treating the board and component leads at least in part with a selected material in liquid state, and hardening the material to form a solid, solder-compatible, non-metallic cement having a melting point below that of solder, coupling the board and leads to one another. The component leads may then be trimmed to finish length, and the components soldered in place. Alternatively the board may be placed in storage for future soldering. The cement is melted and displaced simultaneously with soldering. Preferred as cement are naturally occurring and synthetic waxes having a melting point in the range of about 120.degree.-195.degree. F.

Abstract: A merchandising kiosk has a base shell enclosing a working area for a salesperson. The base shell has display cabinets, the top of which form a continuous counter about the working area. There is an entrance door in the base shell. A canopy that can be raised and lowered mates with the counter in the canopy's lowered position to seal the interior of the kiosk against theft and vandalism. The counter top above the door has a stop that engages the door and prevents it from being opened when the canopy is in the lowered secured position.The canopy for reasons of strength and stability are supported by at least two spaced apart posts within the central portion of the working area which posts are extensible from the closed to the open position. The canopy is raised and lowered preferably by a hydraulic piston driven by an electric pump. The hydraulic machinery and the posts are encased in a central vertical display unit.

Abstract: A new and improved fruit flavored, dry, powdered beverage mix adapted to bereconstituted in cold water, and the method of making same is provided. The powdered mix includes beaten cellulose pulp, which imparts an appearance and mouth-feel resembling freshly squeezed natural juice.

Abstract: An electrochemical measuring system which effects, measures and sorts charge transfer reactions of selected substances in a sample solution is provided. The system includes a novel electrode which is adapted to measure simultaneously on at least two electrodes at least two electolytic potentials with reference to a reference potential. In a preferred form the electrode comprises a hollow, cylindrical body formed of an electrically insulating material. The electrode is open at least at one end and has a generally smooth cylindrical inner surface. A plurality of electrically discrete active electrode segments are mounted on the inner surface of the electrode with their active surfaces substantially flush with the generally smooth cylindrical inner surface.

Abstract: An electrochemical processing system is provided. The system comprises an electrochemical cell having a first compartment adapted to contain a first solution, a first counter electrode and a first reference electrode in contact with the first solution, a second compartment adapted to contain a second solution, a second counter electrode and a second reference electrode in contact with the second solution, and a porous bi-polar barrier electrode separating the first and second compartments. The barrier electrode voltage is fixed at ground. By fixing the potential on the first compartment side of the porous barrier electrode at a first potential verses the first reference electrode while the potential on the second compartment side of the porous barrier electrode is maintained at a second (different) potential verses the second reference electrode, the porous barrier electrode can be used as a gate for specific electroactive species.

Abstract: The present invention provides an apertured circuit board having self-locking terminals which partially cover at least some of the apertures. The terminals, which are integral extensions of the circuit pathways, each include a pair of inwardly disposed generally L-shaped fingers. The terminals are adhesively anchored to the circuit board at the terminal peripheries and are covered in part by a dielectric overlay. The latter also provides environmental protection and electrical insulation to the circuit conductive pathways. The circuit board and integral sockets may be formed by photoimaging and chemical milling techniques.

Abstract: A method of aluminothermic welding of members of austenitic steel containing by weight 10 to 20% manganese, 0.5 to 1.5% carbon and 0 to 5% nickel, and particularly low carbon austenitic steels containing by weight 14 to 17% manganese, 0.5 to 1.5% carbon and 0 to 5% nickel, comprises using a particulate mix for forming the aluminothermic steel, which mix is substantially free from phosphorus and silicon and a mould whose body material is predominantly a non-silicon material.

Abstract: A mass wave soldering apparatus is described. The apparatus comprises a sump having upwardly diagonally extending front and rear walls, and a pair of vertical end walls which cooperate to form an upwardly extending open ended nozzle chamber of increasing plan area. A Z-shaped baffle screen is positioned within the nozzle chamber and distributes the molten solder pumped upwardly in the sump as a wide, smooth substantially unidirectional solder wave ideally contoured for high-speed production soldering.

Abstract: A system is disclosed for voltammetry such as anodic stripping voltammetry including a special electrode mounted to be fitted into a sample holder, stirring means operable through the electrode and an electrolytic potential source, optionally pulsed, capable of scanning the operating potential range which may for example, be a range between about -1 volt and 0 volt. Output recording means can be either an analog chart output or digitalized output. The system may be employed for a wide variety of test purposes generally relating to identifying and measuring heavy metals, one of which is detecting and measuring trace mineral components or trace elements in samples of human blood. When employed with blood samples the sample may first be prepared in the usual manner including digesting the sample but the presently preferred procedure contemplates that the metals being tested are first displaced from blood complexing with suitable ion such as Cr.sup.3+ or Ca.sup.

Abstract: A fluid regulating system has an electro-fluidic control loop in which a fluid control pressure indicative of the relationship between an existing fluid condition and a demand signal acts in opposition to a bias pressure on a control member forming part of a transducer, to provide an electrical output representative of the instantaneous position of the control member. The electrical output is arranged to control a regulating device and so regulate the existing fluid condition in the sense to maintain the fluid control pressure substantially constant. The fluid regulating system has advantageous application to metering of L.P.G. to the carburation system of an internal combustion engine.

Abstract: The present invention provides an apertured circuit board having self-locking terminals which partially cover at least some of the apertures. The terminals, which are integral extensions of the circuit pathways, are adhesively anchored to the circuit board at the terminal peripheries and are covered in part by a dielectric overlay. The latter also provides environmental protection and electrical insulation to the circuit conductive pathways. A particular feature and advantage of the invention resides in the provision of an integral tie-down shoulder on each terminal for capturing by the dielectric overlay. The circuit board and integral sockets may be formed by photoimaging and chemical resist techniques.

Abstract: A regulator for regulating the output of an output shaft is discosed, the regulator comprising a number of chambers to and from which working medium can be fed and discharged in dependence upon control means to effect axial movement of the output shaft via pressure transmitting elements.In accordance with the invention, the regulator comprises a number of series-connected units, the units providing fixedly spaced walls to define separated chambers through which the output shaft effectively extends, each chamber having at least one pressure transmitting element therein which is connected directly or indirectly to said output shaft. With such an arrangement the or each pressure transmitting element, when activated, exerts either individually or in unison an axial force on the output shaft substantially corresponding to the sum of the forces exerted on the active pressure transmitting elements.

Abstract: A system for measuring time/temperature profiles of a mass soldering operation is described. In accordance with the invention a data probe and miniature transmitter is carried through the soldering operation on top of the circuit board being soldered. A plurality of probes are attached to various components, component leads and selected board areas and provide electrical signals in response to the temperature and dwell time the components and board are subjected to during preheating and soldering. The temperature of the solder at the point the solder contacts the board may also be detected. The electrical signals are wireless transmitted, e.g. by means of low frequency electromagnetic transmission, to a remote stationary receiver for integration and display.

Abstract: The invention provides an adjustable cracking device for cracking nuts of a wide variety of sizes. The device comprises first and second elongate rigid members, each including an elongate handle portion and having a curved serrated gripping surface adjacent one end thereof. The elongate rigid members are pivotally connected together adjacent the gripping surface sections thereof for movement toward and away from one another. In one embodiment of the invention, the elongate members are pivotally connected by an adjustable fulcrum formed integrally by the elongate members. In a second embodiment of the invention the first elongate member is pivotally mounted to a central coupling member for movement toward and away from the second elongate member. The second elongate member has an additional serrated gripping surface on its side opposite the first gripping surface.

Abstract: The invention provides an adjustable cracking device for cracking nuts of a wide variety of sizes. The device comprises first and second elongate rigid members, each including an elongate handle portion and having a curved serrated gripping surface adjacent one end thereof. The elongate rigid members are pivotally connected together adjacent the gripping surface sections thereof for movement toward and away from one another. In one embodiment of the invention, the elongate members are pivotally connected by an adjustable fulcrum formed integrally by the elongate members. In a second embodiment of the invention the first elongate member is pivotally mounted to a central coupling member for movement toward and away from the second elongate member. The second elongate member has an additional serrated gripping surface on its side opposite the first gripping surface.

Abstract: There are provided new deodorant compositions which are suitable for application to human skin, the compositions comprising an extract of hops as an active anti-body odor ingredient which is present in an amount at least sufficient to provide bacteriostatic activity.