Abstract: A lubricant supply apparatus includes a pump for discharging lubricant. The lubricant is supplied onto two rows of floor plates arranged on a row of ties. Two tongue rails are mounted on the two rows of floor plates in such a manner as to slide on the floor plates. Times at which the pump is to start operating are preset in a schedule timer. The schedule timer informs a lubricant supply timer when the pump should start operating.

Abstract: In a series progressive divider valve having a number of identical valve units disposed adjacent to each other, each formed by a base member and a spool member having a movable spool therein, a manifold in the form of a plate which can be inserted between the base member and the spool member of a valve unit which modifies the flow of lubricant in the event one of the output ports becomes blocked or restricted. In the event such a blockage or restriction occurs, a relief valve disposed in the manifold plate is opened which establishes communication between two normally non-communicating bores which results in the re-routing of the lubricant to the succeeding valve unit. The manifold permits the overall output/lubricant delivery configuration of the divider valve to be continued in the event of such a blockage or restriction.

Abstract: A filter monitoring device for use in monitoring the purity of a fluid through a filter includes a pressure differential sensing device in communication with the filter. The filter monitoring device defines an inlet port which is in communication with the supply of fluid upstream of the filter and an outlet port which is in communication with a supply of fluid downstream of the filter. The differential pressure sensing device comprises at least one movable device which is in contact with both the upstream and downstream supplies of fluid and moves in response to changes in the pressure differential of the fluid. Different total differential pressures are accommodated by corresponding stiffness of a biasing device. The differential pressure sensing device also comprises a distance sensing device which continuously measures or detects the distance of travel of the movable device.

Abstract: Described is a device for monitoring bearing performance in apparatus having an aperture sized and configured to receive a grease fitting. The device includes a temperature sensing component or a vibration sensing components, or both, to enable detection of impending bearing failure, and is adapted to either replace or supplement conventional grease fittings.

Abstract: An assembly for applying one or more materials to the rails of a railroad track includes a mounting bracket for mounting the assembly to a vehicle adapted to travel on the rails. A connecting arm is coupled to the mounting bracket, and at least one nozzle is connected to an end of the connecting arm. The nozzle arm has a hollow channel through which material flows to be applied to a rail surface. A nozzle port is in fluid communication with the nozzle channel when the nozzle arm is in an operative position. The nozzle arm is biased toward the operative position and is adapted to move away from the operative position in response to contact with an obstruction and is returned to the operative position following the contact.

Abstract: A method and device for changing oil and measuring oil consumption in an internal combustion engine having an internal oil lubrication distribution passage system with an oil filter and oil reservoir including a pump and receptacle for evacuating fluid from the oil reservoir, a pump and receptacle with a fresh oil supply for introducing into the oil reservoir through the oil filter and internal oil lubrication system. An electronic module on the vehicle and communicating and recording with the device facilitates the oil changing process in an easy and safe manner by communicating pertinent information to the device for changing oil including signal to the device an engine running condition and an oil filter-securely-in-place condition so that the device deactivates when the engine is running and the oil filter is not securely in place.

Abstract: A lubrication system. There is an oil reservoir having a first inlet for oil and at least one outlet. A piston in the reservoir forces oil from the reservoir. There is a second inlet in the reservoir on a side of the piston remote from the outlet. Pressure can be exerted through the second inlet to urge the piston towards the reservoir to force oil from the outlet.

Abstract: An automatic lubricant dispenser has a vessel adapted to hold a supply of a fluent lubricant and having one side formed with an outlet adapted to be connected to a machine to be lubricated and an opposite side, a piston in the vessel movable forward toward the one side to force the lubricant from the outlet, and an electric drive connected to the piston and electrically energizable to advance the piston forward. An electric power source is connected via an electrical circuit to the drive for periodically energizing the drive and thereby advancing the piston an increment and pumping a dose of the lubricant from the outlet.

Abstract: The present invention provides a sensor (10) and method for detecting the presence of water or glycol in an oil system. The water/glycol sensor includes a water/glycol concentrator (12) which concentrates the water and glycol in a concentrating zone (84). A water/glycol detection probe (14) is located in the concentration zone (84) such that minute quantities of water or glycol in the system may be detected.

Abstract: An automatic pressurizable lubricant dispenser has a vessel adapted to hold a supply of a fluent lubricant and having one side formed with an outlet adapted to be connected to a machine to be lubricated, a cover, and a cap fittable like a piston in the vessel and forming with the cover a substantially closed compartment holding a supply of a reactive liquid. The cover is formed with a seat opening into the compartment and extending along an axis and a removable partition closes the seat and segregates it from the liquid-holding compartment. A cartridge body fittable in the seat is movable therein between a partially inserted position and a fully inserted position and is formed unitarily of plastic with a cylindrical collar formed with a pair of diametrally opposite cutouts and having an outer end. The outer end moves from nonengagement with the partition in the partially inserted position to engagement through the partition in the fully inserted position.

Abstract: A machine tool coolant filtering system (10) is disclosed as including a plurality of coolant filter tanks (12). Also a method is disclosed which includes identifying particular contaminants in tool coolant and selectively directing the tool coolant to a particular filter tank (12) designated to filter out that contaminant from the tool coolant. A fluid control communication system (22) controls the communication of coolant from the machine tools to the coolant filter tanks (12). A liquid level sensor (40) senses coolant level within a respective tank (12). A modulating valve (46) in communication with the liquid level (40) senses the liquid level in the respective tank (12). If the coolant level in its respective tank (12) falls below a threshold range, the respective modulating valve (46) is closed to restrict coolant from being removed from its respective tank (12) to maintain the coolant level in the respective tank.

Abstract: A chip detector is an open circuit device that attract metal chips circulating throughout a piece of equipment such as a transmission. If a chip closes the circuit in the chip detector, then it is subjected to a first pulse of energy in an attempt to burn or displace it from the chip detector contacts. The energy content of the first pulse is selected to burn fuzz, which represents chips of an acceptable size. If the chip remains in the chip detector, then it is subjected to one or more additional pulses each having a greater energy content than the first pulse. The number of pulses and their energy contents are recorded to determine the size of the chips captured by the chip detector and to provide a history of the equipment being monitored. If the chip in the chip detector exceeds a predetermined threshold, then an indication is given on a user interface.

Abstract: An oil level regulator is provided for controlling the oil level in the crankcase of one or more refrigeration compressors or the like. The regulator has a closed chamber for containing the oil. A float-controlled switch is operable to actuate a solenoid valve for introducing liquid into the chamber as necessary to maintain the oil level in the chamber and compressor crankcases.

Abstract: A hand held transmission fluid changer includes a compact housing internally plumbed with a pair of open ended drain and supply tubes for connection at respective first ends with the first ends of a pair of hoses connected at their opposite ends with remote waste and unused fluid tanks. The respective tubes include respective second ends for connection with a second pair of tubes leading to respective upstream and downstream transmission components for, respectively, withdrawing used fluid from and introducing unused fluid to a transmission. A demand pump is connected in fluid circuit with the supply hose to flow unused fluid from the unused fluid tank to the supply tube. A pair of flow control valves are disposed in the respective tubes to allow the operator to adjust and match the respective flow rates through such tubes.

Abstract: A system and method for extracting used transmission fluid from an automatic transmission in a motor vehicle utilizing the vehicle engine. A reservoir is provided having a free floating piston therein, dividing the reservoir into two chambers. A first flexible line connects from a first chamber to a transmission fluid outlet of the transmission, and a second flexible line connects from a second chamber to a fluid input of a transmission fluid cooler. The second chamber is initially filled with fresh fluid forcing the piston toward the first chamber. Operation of the vehicle engine causes the transmission pump to pump used fluid into the first chamber, forcing the piston to expell fresh fluid from the second chamber, and into the cooler and transmission. A sight gauge in the first flexible line permits visual monitoring of the flow of dark, used fluid to determine when all of the fluid in the transmission has been ejected, collected in the first chamber for disposal, and completely replaced with fresh fluid.

Abstract: A system for providing total fluid exchange for an automatic transmission which interconnects with the transmission's opened cooling circuit to deliver new, fresh fluid to the transmission while simultaneously extracting the spent, used fluid. The system provides a means of quick and random interconnection to an opened cooling circuit and means of identifying and aligning direction of flow in such cooling circuit. The system can accurately calibrate and regulate the rate that fresh fluid will flow into the transmission to be the same as that at which the used fluid is extracted, both of which are regulated to flow at the same rate that fluid normally circulates at in the cooling circuit when it is closed under similar operating conditions.

Abstract: A portable oil suction device including a solid oil tank, a top cover securely fixed to the top open end of the oil tank and having a unitary handle for carrying by hand, a pump cylinder disposed inside the oil tank, a plunger moved in the pump cylinder to induce a suction force for drawing engine oil from an engine into the oil tank, and a control valve carried on a link on the bottom side of the top cover and controlled by a float to stop the air passage on the cover when the engine oil in the oil ,tank reaches the high oil level.

Abstract: A lubricating recirculation system for use with highly viscous lubricants and semi-fluid lubricants such as high viscosity base oil gels and greases. The system includes a bulk lubricant container for storing fresh lubricant that is applied to the use points of the mechanisms as controlled by a controller such as programmable logic controller. After application to the mechanism components, the lubricant falls therefrom and accumulates on guards or channels which help to funnel the lubricant into a spent lubricant holding tank. Sensors in both the bulk lubricant container and the spent lubricant holding tank, in connection with the controller, monitor the level of lubricant in both tanks and activate a transfer pump when the level of lubricant in either tank reaches a certain level.

Abstract: A new and improved trailer fifth wheel lubrication apparatus is carried by a truck and includes a fifth wheel assembly which has lubrication channels and fittings for conveying lubricant to an upper surface of the fifth wheel assembly. Lubricant conveyances are connected to the fittings for conveying lubricant to the fifth wheel assembly. A main lubricant supply line is connected to the lubricant conveyances. A lubricant supply assembly is connected to the main lubricant supply line. A power assembly is connected to the lubricant supply assembly and forces discharge of lubricant from the lubricant supply assembly into the main lubricant supply line. A control assembly controls flow of power from the power assembly to the lubricant supply assembly. The control assembly includes an actuator assembly located in a cab of the truck. A lubricant distribution assembly is connected to the lubricant conveyances and conveys lubricant to the lubricant conveyances.

Abstract: An automatic pressurizable lubricant dispenser has a vessel adapted to hold a supply of a fluent lubricant and having one side formed with an outlet adapted to be connected via a conduit to a machine to be lubricated and another open side and a cover engaged over the other side and fitted with a cap fittable snugly like a piston in the vessel and forming with the cover a substantially closed compartment holding a supply of a reactive liquid. The cover is formed with a seat opening into the compartment. A gas-generating cartridge fits into the seat and has an element capable of reacting with the liquid and forming a gas. A removable partition closes the seat and segregates it from the liquid-holding compartment. The cartridge is constructed so as to remove the partition and contact the element with the liquid for generating gas in the compartment and forcing the cap like a piston away from the cover into the vessel to pressurize the fluent lubricant therein.

Abstract: The present invention is related to a lubricating apparatus comprising a container filled with lubricant, a slidable piston fitted within the safety means, a frame welded onto the container, a gas generating means fixed onto the frame, an lubricant outlet and an electronic circuit. When the piston is at the top dead center, the space defined between the bottom of the gas generating member and the upper side of the piston is substantially small compared to the rate of gas generation so that prompt initiation of lubrication is possible.

Abstract: An automatic pressurizable lubricant dispenser has a vessel adapted to hold a supply of a fluent lubricant and having one side formed with an outlet adapted to be connected via a conduit to a machine to be lubricated and another open side and a cover engaged over the other side and fitted with a cap fittable snugly like a piston in the vessel and forming with the cover a substantially closed compartment holding a supply of a reactive liquid. The cover is formed with a seat opening into the compartment. A gas-generating cartridge fits into the seat and has an element capable of reacting with the liquid and forming a gas. A removable partition closes the seat and segregates it from the liquid-holding compartment. The cartridge is constructed so as to remove the partition and contact the element with the liquid for generating gas in the compartment and forcing the cap like a piston away from the cover into the vessel to pressurize the fluent lubricant therein.

Abstract: A tank structure is arranged to include a piston within the tank structure to divide the tank to a first and second chamber, wherein the first chamber is arranged to receive used transmission fluid and simultaneously direct fresh transmission fluid into an associated transmission pressure line.

Abstract: A railway vehicle wheel flange lubrication system includes a body mounted integrated supply/drive unit, a gapless delivery hose of low friction, e.g. thermoplastic, material and a truck mounted holder bracket. The supply/drive unit has a box enclosing a lubrication strand dispensing reel, a gearmotor drive unit, a control panel with operating circuitry and a lube out signal. The gearmotor drive uses a preferably nylon housing with an enclosed, preferably arcuate, passage in which a toothed sprocket driven by a stalled gearmotor penetrates and drives a lubricant strand. The bracket is configured for sturdy mounting on an axle bearing adapter to maintain the hose end against the associated wheel flange.

Abstract: A device for monitoring vibration of a bearing to assess whether other service is required. The device is adaptable for use with conventional grease guns and can be used simultaneously with lubrication of a bearing. The device includes an electric circuit and headphones which enable the wearer to "listen" to the bearing. Depending on the "bearing noise" that is heard, maintenance personnel can assess what further lubrication is required and what service is needed.

Abstract: A control apparatus for a lubrication pump to supply lubrication oil to a plurality of working machines includes a tank stored with lubrication oil therein, a cover being covered on the tank having a control panel allowing a user to preset intermittent cycle for oil supplying to external working machines via a pipe, a motor transmittedly engaged to a pump which is installed in the inner space of the tank having a plurality of oil passages allowed to transport the oil from the tank to external working machines. A pressure-adjusted valve is located in the cover exactly at one of the oil passage for adjusting the oil flow rate therethrough. A control circuit installed inside the control panel allows the user to preset the intermittent supplying cycle and indicates insufficient oil situation if the tank is short of oil.

Abstract: Apparatus for the continuous reconditioning of non-conductive hydrocarbon fluids from a system utilizing such fluids includes an arrangement of interconnected filters having at least two different type filters, with means for mechanically and electrically arranging the filters to allow a continuous reconditioning of the fluid with the option of re-refining some selected portions of the fluid. A monitor is provided at the end of at least one of the filtering functions for monitoring the quality of the fluid, and the fluid is automatically rerouted to either a clean reservoir or to recycling.

Abstract: A lubrication management system controls the lubricant quantity in multiple refrigeration compressor lubricant sumps. A buoyant member is placed in the lubricant, where a float portion and a magnetically conductive portion rise or fall together. The sensor further includes a displacement transducer producing a variable electrical signal through a resonant frequency shift. The displacement transducer, in proximity with the magnetically conductive portion of the buoyant member, transforms motion of the magnetically conductive portion to changes in resonant frequency shift in proportion to the position of the magnetically conductive element relative the displacement transducer. The system also includes circuitry for receiving the signal and comparing the signal to an adjustable set point, from which the circuitry determines whether an output for signalling a need for additional lubricant is necessary.

Abstract: A system is disclosed for detecting a malfunction in a fuel/lubricating oil heat exchanger which includes a pressure differential generator located in the pressure balancing conduit connecting the lubricating oil reservoir with the lubricating enclosure. The pressure differential generator may be a cavitation venturi tube having a throat which, under normal conditions, allows sub-sonic fluid flow which enables the air in the lubricating enclosure to freely communicate with the interior of the oil reservoir and vice versa. When fuel is mixed with the lubricating oil, due to a malfunction in the fuel/oil heat exchanger, the fuel enters the lubricating oil reservoir causing the fluid level within the reservoir to rise and overflow. The cavitation venturi tube is then supplied with a comparatively hot mixture of fuel and oil having a vapor pressure approximately equal to the reference pressure within the lubricating enclosure.

Abstract: A progressive distributor for lubricants, and in particular for central lubricating equipment, includes a row of metering elements and a base plate made up of individual feed components or segments provided with apertures and conduits for lubricant supply to the metering elements. To meet, in practice, requirements for exchanging the metering elements at minimal equipment and assembly costs, an intermediate plate is provided between the metering elements and the base plate. The metering elements are detachably connected, preferably screwed, to the intermediate plate, and the intermediate plate is detachable connected, preferably screwed, to the base plate.

Abstract: A compressor includes an air cooled lubricant temperature regulator and an engine for providing motive force to the compressor. A first, electric-driven, self-priming pump provides a supply of lubricant to the compressor prior to starting the engine and for a predetermined period of time after the engine is operating. The first pump is flow connected in fluid receiving relation with a lubricant reservoir. A first electronic controller means directs compressor operations, including directing operation of the first pump. A second electronic controller, external to the first controller means, directs operation of the first pump after engine operation. A second, compressor-driven, self-priming pump provides a primary lubricant pumping function during engine operation at predetermined run speeds.

Abstract: A dipstick for measuring oil levels provides an electronic indication when oil in an internal combustion engine sump is low or high. The electronic dipstick does not have to be removed as is normal for most dipsticks which determine level from observing a wet line on the stick. The dipstick has an elongated member for insertion into an aperture of a sump, the member has a high mark and a low mark thereon representing oil level in the sump. A float is mounted for movement within a cage integral with the elongated member, the float having a magnet to activate a switch. A first switch is associated with the high level and a second switch is associated with the low level. An indicating arrangement indicates when the magnet in the float activates either the first switch and/or the second switch.

Abstract: A combination fluid level indicator and fluid discharge device is provided for preventing inaccurate fluid level indications and facilitating fluid discharge from a compressor or other container. The device includes a body or conduit having an inlet end installed in an aperture through to a compressor housing to fluidly communicate with the compressor and receive the lubricating oil therefrom. A visual indicator provides an indication of the level of the oil within the compressor housing. A discharge port with cap, plug, valve or other flow control member permits selective discharge of the fluid from the compressor through the body. The device is installed in an aperture extending through a side of a compressor housing proximate the bottom thereof and indicates the level of lubricating oil within the housing and permits discharge of oil from the housing.

Abstract: Oil venting and monitoring apparatus for marine outdrives. The apparatus includes an oil monitoring reservoir suitable for locating inside the boat. The reservoir is in fluid communication with the fully oil flooded head of the marine outdrive. The reservoir can be observed for an indication of oil level and oil condition. A clear plastic oil reservoir may be used to enhance visual observation. Unlike conventional outdrives, the oil reservoir is convenient for the addition of oil as necessary during and after operation. The apparatus is preferably designed with at least a one inch (1") diameter oil fill hole and typically is of one (1) quart or more oil capacity, so that an entire quart of oil can be quickly added to the system at one time. Also, audible and visual warning systems are included to warn the operator of a low oil condition, or of excess metal in the oil.

Abstract: Apparatus for detecting degradation of the lubrication conditions of smooth bearings connecting a crank shaft to a connecting rod or connecting the crank shaft to the body of a machine that reciprocates in operation, lubrication being provided by oil circulation, the apparatus including means for detecting the phenomenon of seizure, wherein the apparatus comprises an additional bearing serving as a test bearing, said test bearing being lubricated by circulation of the same oil as is used for the other bearings and supporting a radially-loaded rotating shaft, said detection means being fitted to the test bearing which also includes means enabling it to be more sensitive than the other bearings to degraded lubrication conditions.

Abstract: A system for precisely measuring the amount of oil consumed during operation of an internal combustion engine includes a float chamber which communicates with an oil sump in the engine. A float is disposed within the chamber which moves upwardly and downwardly therein, depending upon the level of oil. A precision level detector is mounted in the upper end of the chamber for generating an electrical signal which is representative of the position of the float within the chamber. A microprocessor receives this signal, along with signals from various other sensors representing engine speed, engine torque, and oil temperature. In response thereto, the microprocessor controls the operation of a pump connected between an external supply of oil and the engine sump. When predetermined conditions are met, the microprocessor activates the pump to add oil from the system. The microprocessor also records the oil level over a period of time to determine the rate of oil consumption.

Abstract: An electronic oil level indicator is provided to show the amount of oil in an oil pan of an internal combustion engine which consists of a perforated housing positioned in the oil pan, so that the oil in the oil pan will enter the housing. A mechanism is connected to the housing for producing light. A fiber optic bundle has a first end connected to the housing spaced away from the light producing mechanism within the oil. A display panel is remotely located from the housing with a second end of the fiber optic bundle connected thereto. The height level of the oil will control the amount of illumination from the light producing mechanism reaching the fiber optic bundle which in turn is carried to the display panel to allow a person to visually check the oil level on the display panel.

Abstract: A pressure fluid actuated lubricator having a housing (46), a pressure fluid channel (43, 42, 21) leading from an inlet opening (2) to an outlet opening (7), a reservoir (44) for a lubricant and a discharge device (19) for the lubricant. The reservoir (44) is arranged to be movable by being acted on by the pressure fluid and transfers the pressure force to the lubricant and the discharge device (19). The reservoir is sealed against the penetration of pressure fluid and decreases in effective volume in proportion to the discharged amount of lubricant.

Abstract: A device for monitoring the output pressure of an automatic oil pump and for controlling the intermittent timing sequence of the oil pump in accordance with the output pressure. A pressure sensing switch monitors the oil injection pressure and an integral watchdog timer insures that the oil pump injection pressure reaches a saturation level before a predetermined timeout occurs.

Abstract: A pressure sensor, such as the type of sensor used in screw-type refrigeration compressors, permits sensing of positive as well as negative pressures and provides an indication of the direction in which the compressor is rotating. Negative pressure leads to system shut-down, while positive pressure verification will allow compressor operation to continue. The pressure sensor includes a pair of adjustable tension springs, on opposite sides of the diaphragm, to vary the position of the diaphragm within its mechanical stroke. By establishing a pressure range of interest, and by employing an electrical sensor, such as a Hall effect sensor, the direction of movement of the diaphragm and sensor can be monitored immediately upon compressor start-up.

Abstract: A lubrication system for a cotton harvester having a plurality of harvesting units. The lubrication system comprises a lubricant source for providing pressurized lubricant to each of the harvesting units to facilitate their operation and a control mechanism for measuring cyclic operations of harvesting units operating components during a harvesting procedure. The control mechanism controls operation of the lubricant source such that the amounts of lubricant provided to the harvesting units during a lubrication cycle is correlated to the lubricant usage of the harvesting units during the harvesting procedure. A salient feature of the present invention relates to a display for visually indicating the cyclic operations remaining for the harvesting units before another lubrication cycle is due to be commenced. The display furthermore provides a visual indication relating to the operating performance of the lubrication system.

Abstract: An apparatus for controlling and monitoring a lubricating system having analog sensors and switches indicating the status of the lubricating system. An analog-to-digital converter is responsive to the analog sensors and switches and provides a plurality of digital sensing signals representative of the status of the lubricating system. A provided memory includes a nonvolatile memory for storing instructions. By using a keypad, an operator selects and inputs parameters into the nonvolatile memory. A microprocessor processes the digital sensing signals in accordance with the parameters stored in the nonvolatile memory. Relays are responsive to the microprocessor and initiate lubrication of the lubricating system. A display, responsive to the microprocessor, indicates the status of the lubricating system.

Abstract: For use in conjunction with a fluid retentive housing defining a fluid volume and containing a lubricant, wherein there is provided a fluid port for the lubricant, an integral filler cap and metal debris detector assembly for removable placement within the fluid port comprising a filler cap defining an outer surface for insertion into the fluid port and further defining a bore and magnetic apparatus arranged within the bore and immersed in the fluid volume for attracting metal debris suspended in a lubricant fluid flow so as to remove metal debris from circulation.

Abstract: A closed lubrication system for use in bearing housings subject to a range of temperatures which isolates the air and lubricant within the bearing housing from potential contamination arising from exposure to ambient air. The invention includes a liquid-displacement expansion chamber assembly which is responsive to temperature changes in the bearing housing to accommodate volumetric expansion and contraction of supply air. A constant level lubricator is provided to maintain the quantity of lubricant at a constant sump level. A lubricant circulation assembly, including a lubricant filter, a lubricant cooler, a lubricant pump, and a sight gauge is also provided. The lubricant circulation assembly and the constant level oiler may form part of the self-contained, integral unit adapted to be selectively connected to the bearing housing. The lubricant pump may be a gear pump.

Abstract: A piston-type point of lubrication magnetic flow indicator providing a barrel interfit with a bushing having a cylinder portion penetrating the barrel coaxially and a magnetic piston which reciprocates closely interfit inside the cylinder portion of the bushing. Lube oil enters an inlet port of the bushing, flows through a check valve into the cylinder portion, and impinges on one end of the magnetic piston. The impinging causes the magnetic piston to move in the cylinder portion uncovering at least one port formed through the cylinder portion which opens the cylinder portion to the barrel, directing flow thereto. The lubricating oil flows through the barrel and out of an aperture formed at a forward end of the barrel to a lubrication point. Movement of the magnetic piston through the cylinder portion triggers a magnetic reed switch mounted on an outside circumference of the barrel and generally overlying the relative axial position of the piston in the cylinder portion.

Abstract: A lubricant condition sensing unit for the lower unit of a marine propulsion drive. Light is transmitted through the lubricant and the condition and level of the lubricant is sensed by comparing the light signal transmitted with a predetermined value.

Abstract: In a device for the dosing of lubricants which comprises at least one manual throttling element limiting the volume flow and a flow metering device connected downstream of it, which contains at least one sensor element movable through the volume flow, a dynamic flow metering means (M) is connected downstream in the manual throttling element (D) whose sensor element (S) moves also after the reaching of the nominal volume flow and a display means (A) is provided on the dynamic flow metering device (M), which represents the actual volume flow from the movement of the sensor element (S).

Abstract: An oil level monitoring device including a transfer shaft for selecting an operational mode of an automatic power transmission by movement of a selector lever. The hollow cylindrical transfer shaft extends essentially in a vertical direction for permitting an oil level gauge inserted therethrough to reach a lubricant oil in a reservoir. The oil level gauge is ordinarily contained within the shaft.

Abstract: An oil level sensor has a cylindrical hollow sensor body and an elongated inner electrode provided in the sensor body at a distance from the inner wall of the sensor body. The sensor body and the inner electrode are made of conductive resin including carbon particles. An oil level detector circuit is provided in the sensor body.

Abstract: This invention aims at providing a portable type of automobile engine oil suction pump which features a simple construction and a luminous indication lamp to warn its users of the exhaustion of the engine oil. This invention provides the improved structure of a portable type of automobile engine oil suction pump. Its main features are: an inner gear set comprising an inner ring gear and a pinion gear in the interior of two circular disks; and, an eccentric, convex, crescent-shaped block having an inner concave edge in touch with the pinion, and located eccentric to the ring gear with its convex side jointly set with the pinion to form an outer peripheral shape so as to enable one side of the inner ring gear to be engaged by the pinion, and the other side to keep in touch with the convex face of the eccentric crescent block, so as to allow the inner pinion to directly join with the revolving shaft of the motor to cause the ring gear to rotate.