Abstract: A wear indicator for use with a brake having an actuation means. The wear indicator measures the gap between a friction member and the actuation means which is a function of the wear experienced by the friction member.

Abstract: A chamber having an opening in its wall contains a roller. A portion of the surface of the roller is situated in the opening. A web is continuously moved past the chamber so as to cover the opening. A vacuum is created in the chamber. The external pressure forces the web into contact with the roller. A coating liquid is supplied into the chamber so as to wet the roller. The roller is rotated so that the coating liquid is transferred to the web.

Abstract: A solvent vapor collector is mounted on the upstream inlet end of an oven having a gas-circulating means and intended for curing a coating applied to a strip sheet metal at a coating station. The strip sheet metal may be hot and solvent vapors are evaporated at the coating station and from the strip as it passes from the coating station to the oven. Upper and lower plenums within a housing of the collector are supplied with oven gases or air from the gas-circulating means and such gases or air are discharged within the collector obliquely in a downstream direction against the strip passing through that collector to establish downstream gas flows along the top and under surfaces of the strip so as, in turn, to induct solvent vapors into the collector at the coating station.

Abstract: A development apparatus in which the donor member has a pattern of depressed regions therein. The donor member moves developer material into contact with a sheet of support material disposed adjacent an electrostatic latent image recorded on a photoconductive surface. Inasmuch as the donor member has a pattern of depressed regions therein, the developer material is deposited on the sheet of support material in a half-tone pattern.

Abstract: An improved decorative wall mounting for an aquarium is provided which comprises a tank having at least a planar rear panel, reinforced edging surrounding the top and bottom of the tank, first and second channel members extending respectively along the portions of reinforced edging provided on the planar rear panel of the tank, and a frame having a prominent interior border mounted therein complementary to the planar rear panel, a picture slot being defined within the prominent interior border, and having a recessed outer border supplementarily overfitting the planar rear panel of the tank, first and second laterally extending channels determined between the interior and outer borders, the first and second channel members overfitting opposite edges of the interior border and respectively registering in the first and second channels.

Abstract: A claw for a milking machine milk receiver into which the milk descends through four inflations, a central vertical tubular assembly removing milk from low point of receiver, a vacuum delivery tube for milk attached with respect to the tubular member above the tank, a shutoff for the vacuum operating automatically upon a simple pulling action or accidental dropping of the claw, and means simultaneously shutting off the pulsator action for the inflations.

Abstract: Two gate sides are pivoted within a base for substantial parallel swinging movement towards and away from one another by means of a handle on one support post of the components. A cross-over chain at the other ends of said support posts transfers movement of one gate side with the other. The handle incorporates a locking mechanism which is disengaged when the handle is lifted for gate side movement but is engaged when the handle is lowered thus maintaining the gate side lock in position.

Abstract: A livestock sorting gate having a chute forming a path for guiding animals toward a pair of pens disposed in opposite relation to one another laterally of the path formed by the chute for receiving animals being guided down the chute. Access to at least one of the pens is selectively blocked by a gate in the form of a parallel crank four-bar linkage disposed in the chute adjacent the pens. A motor, connected between an adjoining pair of three fence-portions pivotally joined together and anchored to fixed pivots for forming the cranks and connecting rod of the linkage, acts to vary the angle included between adjoining sections of the gate in order to swing the gate transversely of the path formed along the chute so as to achieve the desired blocking and unblocking of access to the pens.

Abstract: The heating power of the fire box of a boiler burning powdered fuel maintained in suspension by fluidizing air is regulated in dependence on the temperature of the burning fluidized fuel layer by means of a heat transmitting system filled with a liquid medium, a first part of the heat transmitting system being embedded in the burning fluidized fuel layer, a second part of such system being disposed in the boiler drum, and a third part of the system being disposed within the fluidizing air supply. The heat transmitting liquid which is heated by its flow through the first part of the heat transmitting system selectively transmits heat to either the second or the third part of the system whereby to regulate the heat output of the boiler.

Abstract: The waste heat steam generator employs two parallel channels for receiving flows of exhaust gas from a gas turbine. In one channel, the exhaust gas flow is heated by a supplemental burner to a temperature less than 900.degree. C while the flow of exhaust gas in the second channel is heated to a temperature above 900.degree. C. The amount of fuel supplied to each burner is controlled by various control means responsive to the temperature within the steam generator or the temperature of the live steam or by the pressure of the live steam. A distribution means is provided at the entrance to the channel in which the exhaust gas is heated to a temperature above 900.degree. C so as to control the flow therein. The steam generator can be easily adapted to partial load operation by regulating the amount of fuel to the supplemental burners.

Abstract: A tube heat exchanger having a substantially cylindrical housing, a pair of adjacent cylindrical headers disposed in the housing, and a multiplicity of downwardly extending U-shaped heat exchanger tubes connecting the headers to one another, one of the headers being an inlet header and the other thereof being an outlet header, both of the headers being connectible to pressurized water lines of a pressurized water nuclear reactor, includes a feedwater supply connected to the housing below the outlet header for supplying a quantity of feedwater into the housing up to a given level partly filling the housing during operation of the heat exchanger, the heat exchanger tubes extending upwardly from the outlet header above the given feedwater level and being formed with a U-shaped bend located above the given level.

Abstract: A function signal having a desired characteristic curve is generated through the logical operation on a vehicle speed signal indicative of the speed of a vehicle, a ratio signal indicative of the air-to-fuel of the mixture supplied to the engine mounted on the vehicle, and a pressure signal indicative of the pressure in the intake manifold of the engine. The position of an electromagnetic valve for adjusting the amount of fuel supplied to the engine is controlled in response to the function signal, thereby controlling the air-to-fuel of mixtures in accordance with the various driving conditions of the vehicle including the vehicle speed.

Abstract: A two cycle rotary internal combustion engine of the fuel injection type. A rotor having three radially disposed cylinders in equally spaced angular relation in a circular rim rotates in sealed relation within a cylindrical stationary outer housing. The respective pistons in the cylinders are connected to the same crank arm of the crankshaft, which is in turn connected, through a planetary gear mechanism, to rotate in the same direction and at a three-to-one ratio of speed to the rotor. The outer housing has two exhaust ports and two fuel injectors in angularly spaced relation to which the cylinders are opened in timed sequence. Fresh air is supplied under pressure into the closed housing in surrounding relation to the cylinders for cooling the cylinders and for preheating scavenging air admitted to the interior of the cylinders through ports therein.

Abstract: A rotary device particularly useful as a rotary engine comprises a cylinder having two (or more) pairs of axially displaceable pistons, the pistons of each pair being movable towards and away from each other to define an expansible and contractable chamber therebetween. Each chamber includes fuel intake openings, exhaust openings, and spark plugs. The inner surface of the cylinder, and the outer surface of the pistons, include cooperable cam and follower means such that the displacement of the two pistons in each pair towards and away from each other also imparts a rotary motion to the pistons, the side walls of the pistons being formed with gear teeth coupling the pistons to a rotary output shaft.

Abstract: An internal combustion V-8 engine is disclosed having an aluminum semi-permanent mold head cast by a low-pressure die-cast process and an iron block cast by the evaporative casting method. The block and head have controlled thickness walls throughout to optimally lower the metal/working volume ratio of the engine. The block employs barrel cylinder walls cast integrally and unsupported except at the barrel ends and at a siamese connection between adjacent barrels; the barrels are maintained under a predetermined level of compression to eliminate fatigue failure and suppress sound. The block is sand cast and the head is totally formed with a three piece die and one sand core cluster, except for one passage which is drilled subsequent to casting. The engine is reduced in weight by at least 20% over conventional comparable engines; torque and horsepower is improved even though the cooling system capacity has been reduced to less than half that of a conventional cooling system.

Abstract: A dashpot for impeding rapid closing of a throttle valve of a carburetor, especially for an automotive engine has an air passage that opens to the atmosphere, venting a dashpot chamber whose capacity increases when the dashpot operates. A delay device is provided in the air passage, and comprises an orifice and a nonreturn valve arranged in parallel, and in series therewith, a control valve that closes the air passage when an intake manifold vacuum exceeds a set value. The dashpot serves as a throttle positioner in the high engine rotation area, and as a regular dashpot in the low engine rotation area.

Abstract: Air circulated in the interior of a gasoline engine becomes contaminated therein with gasoline and oil vapors trapped in the crankcase. This contaminated air is then fed, by means of intake manifold vacuum, to the cylinder for combustion. By passing the contaminated air through a filtering means prior to combustion, the oil vapors are removed, providing longer spark plug life and improved engine performance and reduced oil and grease deposits in the intake manifold. A drain in the filter returns the oil collected to the crankcase for reuse.

Abstract: An additional air supply control apparatus for an internal combustion engine including a bypass passage for supplying air additionally to the engine and a control valve provided in the bypass passage for controlling the amount of air-flow through the bypass passage. A gas sensor is mounted in an exhaust system of the engine for detecting changes in the air-fuel ratio and a control unit produces an intermittent control signal in accordance with a detection signal from the gas sensor. The control valve is driven by the control signal intermittently in a skip movement fashion.

Abstract: A fuel delivery system for an engine operated with a gasoline/alcohol fuel mixture in which a fuel pump delivers fuel from a fuel tank to a fuel feed device on the engine. According to the invention the fuel pump is immersed within the fuel in the fuel tank and a fuel return line is connected to the pressure side of the pump for returning fuel directly to the fuel tank.

Abstract: The control pressure valve assembly for a fuel injection system of an internal combustion engine provides variable fluid pressure which provides a restoring force against the fuel control plunger to alter the fuel-air ratio in dependence on engine and environmental variables. In particular, the fluid pressure is regulated by a spring loaded diaphragm valve which is also subjected to a variable closing force provided by an air pressure cell and by a first temperature sensitive element which opposes the forces of the spring and of the air pressure cell to provide decreased fluid pressure at low engine temperature and a second temperature-sensitive element to oppose the force of the air pressure cell only below a predetermined temperature.

Abstract: This invention discloses fuel injection nozzles for internal combustion engines which are known to have a needle valve that is shiftable under pressure of the fuel supply against the force of a closing spring and more particularly the improvement wherein the opening stroke of the needle valve can be changed by a transversely movable slide element that includes a spool-like body having a medial area of varying diameter which serves to limit the stroke of the needle valve.

Abstract: Metering valves in diesel engine fuel injection systems are disclosed. The systems each include a high pressure fuel pump, a fuel distributor, at least one metering valve, and fuel injector nozzles. In the preferred embodiment, the valves are of a type having a spool or valving member which moves axially in a bore from a second position to a first position and while so moving an annular groove, defined in the circumferential surface of the spool, traverses a valve outlet passage at velocities independent of engine speed for metering fuel to the engine during the traversing time. The spool may be moved from the second position to the first position by a spring or a solenoid and in the reverse direction by a stepped cam, a spring, or a solenoid. The distributor blocks fuel metering to the engine during reverse movement of the spool.

Abstract: The present invention relates to control devices and can most advantageously be used in load control devices for turbo-supercharged diesel engines operating over a wide range of operating conditions when frequent unsteady periods of operation caused by variations in the load take place. This control device comprises a crankshaft speed measuring mechanism, a pilot valve, a servomotor with a tailrod, a passage providing hydraulic connection of the pilot valve with the servomotor. A servomotor tailrod stroke limiter is mounted within said passage and comprises a stationary fixed casing, a sleeve and a plunger, both movable with respect to the stationary fixed casing and with respect to each other. The sleeve is connected to a pressure sensor, while the plunger, to the tail-rod of the servomotor. Such a constructional arrangement enables a separate control of the load as a function of air supply and fuel supply.

Abstract: A reversible electric motor is employed for driving a control lever of a governor for a diesel engine fuel injection pump, so that the control lever is electrically and automatically driven by the motor in association of turning of a key switch. In a control circuit for the motor, a closed circuit for an armature coil of the motor is formed when the motor is stopped for providing an electric brake for the motor to thereby quickly stop the same at given positions.

Abstract: A speed sensitive pressure regulator system includes a diaphragm of resilient flexible material positioned within a housing and forming an actuating chamber therein. A valve is associated with a passage and is movable between a first position at which fluid pressure in the actuating chamber is substantially equal to the fluid pressure in the passage and a second position at which the fluid pressure in the actuating chamber is less than the fluid pressure in the passage. The valve is connected to the diaphragm in a manner sufficient for biasing the valve toward the second position in response to pressurized fluid in contact with the diaphragm. A flyweight assembly is associated with the valve and is of a construction sufficient for moving the valve to its first position in response to rotation of the flyweight assembly above a preselected speed and for permitting the valve to move to the second position in response to a decrease in the rotational speed of the flyweight assembly below the preselected speed.

Abstract: A capacitor discharge ignition system including a DC to AC inverter circuit for converting a battery voltage to high voltage AC, and a rectifier for rectifying the high voltage to DC. A power capacitor and the primary winding of the ignition coil are serially coupled across the output of the rectifier. A silicon controlled rectifier is also coupled across the output of the rectifier and has its trigger element coupled to a trigger circuit which provides a trigger signal to turn on the silicon controlled rectifier in response to opening of breaker points thus causing the power capacitor to discharge through the primary winding of the ignition coil thereby to provide the requisite high voltage in the secondary winding to provide the spark at the respective spark plug.

Abstract: A device for slowing an internal combustion engine in the event of oil pressure failure at an engine speed above idle, includes an SCR with the gate thereof connected to an engine rpm sensor which provides a voltage analog of engine speed. The SCR is connected between an oil pressure sensing switch typically provided for the engine, and the ignition distributor points. Should the oil pressure switch close, indicating low oil pressure, and the engine is turning at sufficient speed so that the rpm sensor provides enough voltage to the SCR gate, the SCR will fire and short the ignition.

Abstract: A rotary engine is disclosed having a plurality of rotor blades spaced around an annular chamber and dividing the chamber into separate engine chambers. The rotor blades drive two output shafts which are coupled by a transmission means to provide a single rotational output. The transmission means alternately drives selected of the rotor blades at an increased forward rotational speed while simultaneously driving the other rotor blades in a reverse direction so the latter remain stationary relative to the housing. The alternate driving of the rotor blades varies the volume of the engine chambers formed by the blades to provide expansion and contraction of the engine chambers.

Abstract: A wood burning stove is formed with double front and rear side walls of heat conductive metal interconnected by heat conductive spacer fins and providing air passageways by which room air is heated by conduction from the walls which are heated by the burning of wood deposited on a firebox grate made up of spaced bricks supported by metal holders secured in heat conducting relation to said inner side walls. The rear side air passageway is divided into central and outer vertical sections the central one of which is closed at the bottom end and communicates with the atmosphere through an opening in the outer wall intermediate its vertical ends and with the stove interior above the firebox and below the grate through openings in the inner wall intermediate its vertical ends and adjacent its bottom end, respectively.

Abstract: An inner shell is incorporated within an outer shell and is of smaller dimensions to provide side spaces for the upward flow of heat, a top space communicating with an outlet, and a rear space having a V-shaped baffle therein causing upward flow of heat in the rearward area to be circulated and slowed for increased heating efficiency. An extension is attachable to the baffle for extending it upwardly and forwardly to control the flow of heat at the baffle. The inner shell has an imperforate tray extending from side to side and arranged to be moved forwardly through an opening in the inner shell and providing a natural forced flow of heat around it from the bottom for heating room areas.

Abstract: A freestanding space heating stove, presenting heat radiating flat faces of essentially equal surface, the faces being alike pentagonal plates of steel joined edge to edge forming a dodecahedron shaped hollow body wherein one of the plates provides a bottom and supporting legs extend downwardly and outwardly from the edges of the bottom plate to support the stove above a supporting floor. The bottom plate has five like plates diverging upward from its five edges and these five plates each have their two upper edges joined to the two lower edges of two like plates. The five upper plates converge and have their top edges joined to a top plate. One of the upper plates is provided with a door to receive fuel. Also, two of the upper plates have air inlets provided with dampers. Outlet means for gases produced is provided at the point of the top plate opposite to the edge thereof which joins the door carrying upper plate.

Abstract: An airtight combustion chamber in a house has a draft hole formed through a first end and a draft door movably mounted thereon to selectively open the draft hole to a desired extent, controlled by a thermostat. The wall of the second spaced opposite end of the combustion chamber has a steel stove door movably mounted thereon. The second end coincides with a doorway formed through a chimney wall which is common with the house. Wood is supplied to the stove through the stove door for combustion. The products of combustion are removed from the stove via the stove door. The stove door has a smoke pipe extending therethrough into the chimney and a damper on the end of the pipe. Heat from the fire in the airtight chamber escapes into the house through decorative screens above and in front of the stove, simultaneously warming rock or brick walls at the sides of the stove and a rock or brick wall of the house.

Abstract: A fireplace is disclosed in which the ash dump is utilized to supply combustion air to the fireplace so that air will not be drawn by the fireplace from the room in which the fireplace is located. This is accomplished by locating an air diffuser over the ash dump in combination with an ash pit clean-out door that can be adjusted to control the flow of air through the ash dump and into the fireplace. The ash pit clean-out door may be located either on an outside wall to draw in outside air or it may be located in a non-living area of a home, such as the basement.

Abstract: A pyrolytic self-cleaning oven has an oven door latch mechanism with an elongated latch arm that has a shifting pivot means and a tapered latch hook so the latch mechanism will cause the compression of the door gasket for sealing the oven cavity during the self-cleaning cycle. There is a locking means for the latch mechanism which functions when the door is locked and the oven temperature is above normal cooking temperatures. The locking means includes a bimetal actuator that senses the temperature of the oxidation unit in the oven exhaust system.

Abstract: A solar heat storage and utility system wherein heat storage means is mechanically conveyed from an energy receptor area to a storage or other utility area. A series of enclosures containing heat storage media are intercoupled to and between endless connectors, such as sprocket chains, that are routed for heat absorption and also storage and/or use as required. The heat storage elements preferably take the form of tubes which are caused to rotate as they roll downwardly on their rails at the absorption area, thereby offering different sector surfaces to accomplish a rapid heating of the elements in which the heat storage media is contained. The system is self-contained in a primary or ancillary building enclosure. Means are provided to optimize energy reception and storage.

Abstract: A versatile, low cost solar heat collecting module made up of a minimum of presized basic parts has a cover portion for passing solar energy into an inner cavity where it is absorbed by a collector plate and converted to heat which in turn heats a stream of air in a flow passage along the back face of the collector plate. Manifold portions at the ends facilitate the moving of a stream of air through each module and an array of interconnected modules are arranged side-by-side in such a way that the flow path for air from inlet to outlet for the array is substantially the same distance. A heat-washing means projects into the flow passage from the back side of the collector plate to cause a turbulence in the air stream, the heat-washing means being provided by a support strap for supporting the collector plate that is bent to project into the flow passage and place a tension in the support strap and collector plate.

Abstract: A solar heating system including an energy absorbent collector dish for receiving solar heat, a supply tube for distributing a heat transfer fluid over the collector dish, a drain pipe for removing the heat transfer liquid from the collector dish and an optical director including an array of converging lenses oriented to receive radiant energy from the sun and to direct the energy onto the collector dish. The array of converging lenses comprises a matrix of double convex lenses that form one half of a hemispherical optical dome, the other half of which possesses an inner reflective surface for reflecting radiant energy onto the collector dish and the optical dome is oriented such that some portion of the lens array faces the sun during an entire day's movement.

Abstract: A cylindrical arc reflector of electromagnetic radiation which is a rectangular sheet of material having a radiation reflective surface composed of longitudinal segments that reflect substantially all of the impingent radiation to a longitudinal focal line when the reflective surface is held in the form of a concave cylindrical arc by a pressure differential. The sheet is mounted by its longitudinal edges with its transverse edges movably sealed so as to form an enclosure into which a low vacuum is introduced to create the form holding pressure differential. The reflector is particularly adaptable for use in a solar energy collection apparatus that is constructed using a support structure that does not include the precisely accurate shape of the reflective surface.

Abstract: Apparatus for collecting solar radiation in the form of heat and transferring it to a working fluid, including in combination, a collector surface and a highly porous open cell material used as a fluid carrier which abuts and allows the working fluid to contact the back side of the collector surface.

Abstract: A solar energy collector providing both concentrating-tracking functions and non-concentrating diffuse absorption functions in a single unit. The solar energy collector and process may provide both a higher temperature heat transfer fluid and a lower temperature heat transfer fluid for utilization in various processes, such as air conditioning, which may advantageously utilize thermal energy of two different temperatures. The solar energy thermal collector and process of this invention provides a high temperature thermal output in combination with a simplified tracking capability.

Abstract: A solar radiation energy collecting system for receiving the sun's rays and focusing them upon a central absorber. A plurality of plane mirrors are mounted in a circular array concentric with a vertical absorber tower, the azimuth angle of each of the mirrors being fixed in the array at the particular angle necessary for it to reflect rays from the sun upon the absorber tower. The mirror array is mounted upon a boat floating on a pond and the boat and mirror array rotated in synchronism with the daily apparent motion of the sun, so as to maintain the desired focusing of reflected solar radiation upon the absorber tower. In one simple embodiment the mirrors are rotated only in a horizontal plane about the vertical axis of the absorber tower, and the varying elevation angles of the sun cause the reflected solar energy to scan up and down along the length of the absorber tower as the sun moves from east to west each day.

Abstract: A solar collector comprises a series of absorber modules each formed as an extrusion that forms side-by-side flow channels. In one form of the invention, end plates close the flow channels at their ends, the ribs between the flow channels being cut away at their ends in order to define a sinuous flow path from the outside to the inside of the collector. The absorber modules are supported at the relatively low temperature sides adjacent the inlets, and with conductive engagement only with the bottom wall of the absorber.

Abstract: There is disclosed an improved flue box assembly which consists of a housing formed by a continuous sidewall, a top wall and a bottom wall, each of the top wall and bottom wall having an aperture disposed therein, the interior diametric sizing of the housing being substantially greater than both the top wall and bottom wall apertures, and the housing including a damper plate pivotally mounted interioraly thereof and spaced between the top and bottom wall respectively, the damper plate further including a flue opening having a diametric sizing substantially smaller than the top and bottom wall apertures, and the damper plate being constructed and accommodated to be movable between an open position and a closed position, such that when the damper plate is in the closed position, the flue opening is interposed between the top wall aperture and the bottom wall aperture and insures a maximum burning of the fuel in the corresponding furnace, while alternatively, under back pressures or an explosion condition, the d

Abstract: An andiron system is provided for use within a fireplace comprising a floor, a pair of oppositely disposed side walls, a front wall defining an opening and a rear wall disposed opposite said front wall. The andiron system comprises a pair of spaced apart andirons, and a guard. Each andiron comprises an elevated, generally horizontal log supporting member spaced vertically above and apart from the floor and extending from a location adjacent the front opening toward the rear wall and a post member extending generally uprightly from the supporting member adjacent the front opening of the fireplace. The guard comprises an elongated rigid rod having a length greater than the distance between the andiron post member and a pair of spaced apart cuff means fixedly secured to the rod. Each cuff defines an opening adapted to nonpivotably receive one of the post members. The rigid rod extends between the andirons in a position generally parallel to the front wall and the floor and above the log supporting members.

Abstract: This invention relates to medical apparatus for such usages as urological irrigation, and in one embodiment comprises twin bags of solution, each of which has a valved orifice that may be removably connected in the mid-section of an irrigation tube, which may be folded over into contacting juxtaposition with each other and manually squeezed simultaneously so as to force solution through both the upper and the lower segments of the tube at the same time.

Abstract: Process for rotation of the fetal head during childbirth, using a force through the agency of spatulas by applying the principle of wheel rotation, namely for rotating the head in any of its presentations of position, to reduce fetal and maternal lesions, as well as the necessity of cesarean sections, and to facilitate manipulation by less skilled personnel; the process comprising rotating the head by applying the force at a point corresponding to the zone of the occipital bone, utilizing the axis of rotation which passes through the junction of the cervical column with the fetal occiput, and using the spatulas of specific shapes. An instrument is also disclosed for the rotation of the fetal head, comprising a pistol-grip handle, and a pedical terminating in a solid scoop, the latter presenting a pelvic curvature and a cephalic curvature, the axis of the tip of the scoop having a specific angular inclination relative to the longitudinal axis of the instrument.

Abstract: A specimen collecting apparatus, with variations, providing for all, or part, or combinations of the following:Self-contained in-line transport and culture container that maintains the sealed state of its chamber within, before, during, and after the entry of the collected specimen.Aerobic or anaerobic swab devices, with swab rods of varying lengths and curvatures.Removable protective tubes for taking specimen from its existing environment, directly to sealed chamber without passing specimen thru ambient air.Self-contained transport media.Self-contained culture media and means for inoculating specimen on said media within said chamber for direct placement in incubators.Self opening protective tips for contamination protection during insertion and withdrawal from specimen locations.All parts, integratable for an assembly for collecting and maintaining specimen, and the method of operation of same.

Abstract: A catheter is disclosed for measuring the intrauterine pressure of a woman in labor. It comprises an elongated flexible tube which is inserted into the uterus through a curved guide tube adapted to be inserted through the vagina and cervix of a woman in labor. The catheter tube contains a sterile liquid and is closed at both ends by a seal which is capable of transmitting pressure from the liquid within the catheter to an external liquid. In a preferred embodiment, a limp membrane is used to couple the catheter tube to a strain gauge or the like for measuring pressure. The catheter end within the uterus includes a number of pinholes and a capillary material within the tube to prevent loss of the catheter liquid. Alternatively, and particularly where it is desired not to rupture the amniotic membrane, a second limp membrane may be used as the means for coupling between the catheter liquid and the uterus.

Abstract: It is described a man locomotive functionality evaluating apparatus comprising a rigid platform adapted to support a subject walking thereonto and exercising on it a force and/or pressure due to said walking; a plurality of force and/or pressure transducing members operatively associated with the platform for providing electric signals representative of the force and/or pressure on the platform and a hybrid processor circuitally connected to said transducing members and adapted to in-line converting on output display means the time-space representation of the projection on a plane of the resultant of the forces and/or pressures acting on the platform.

Abstract: The process comprises introducing minute particles into the interior of the cells. These particles being injected intraveneously while suspended in an appropriate solution are of the size generally having a diameter of approximately 1 micron or less and are of a material with properties such as ferromagnetic, paramagnetic, or diamagnetic. Shortly after being absorbed intracellularly, these particles will assume the same temperature as the respective cells which they have entered. It is a well established principle that the magnetic characteristics of ferromagnetic, paramagnetic, and diamagnetic materials vary as a function of their temperature. By measuring the magnetic characteristics of these particles shortly after they have entered the cell and with proper calibration, an exact determination of the temperature of the particle and therefore of the cell, can be made.