Abstract: Grease fed from a grease tank 10 to a metering force feeder 22 is fed into an injection cylinder 30 after the weight of the grease is precisely measured, and the total amount of the grease in the injection cylinder 30 is injected from the nozzle 34. The nozzle 34 can advance toward an electric motor 60. When the nozzle 34 advances, a first packing 50 and a second packing 52 provided on a tip-end face 34a closely contact to an outer ring 66a and an inner ring 66b of a bearing 66, respectively. In the condition, when the grease is injected from an injection hole 34b, the grease is pushed into an operation space of rolling elements 66c of the bearing 66. A grease pocket 68 is also filled with the grease.

Abstract: A lubrication system for supplying lubricant to a plurality of antifriction bearings composed of inner and outer bearing rings and a plurality of rolling elements mounted between the rings. The lubricant is intermittently supplied to the region of the rolling elements, with the amount of each intermittent supply being determined as a function of operating data which are continuouslu acquired from the bearing.

Abstract: A single-piece piston for use in a pneumatically-activated pump or other metering device to meter a predetermined amount of lubricant or other liquid. The piston is disposed within a chamber of the body of the metering device. The piston has a grooved end that includes a head portion and a circumferentially-disposed angled channel for containing a sealing member such as an O-ring. An adjacent stem section includes means for providing a fluid-flow connection with the angled channel. Lateral movement of the piston within the body causes the sealing member to shift and block and unblock the fluid-flow connection means, which allows liquid from a liquid chamber to flow out the head of the piston's grooved end and to an adjacent pump chamber.

Abstract: A device for detecting undesired amounts of gas in a lubricant dispensing system includes a measuring chamber connected to a lubricant dispensing system and configured to receive lubricant therefrom, a moveable rod located at least partially inside the measuring chamber, an actuator operably connected to the measuring chamber and adapted to create at least a partial vacuum in the measuring chamber as the measuring chamber fills with lubricant, and a sensor for detecting a rate of compression or expansion indicative of undesired levels of gas in the lubricant by sensing movement of the moveable rod when the lubricant enters the measuring chamber. The device is constructed to dump charges of lubricant having unacceptable levels of entrapped air, and further includes an adjustment mechanism permitting adjustment without unnecessarily dumping lubricant in the measuring chamber.

Abstract: Device for precise replacement of liquids in a mechanism includes at least one bag which can be filled with liquid to be delivered precisely to the mechanism or which can hold used liquid. The bag(s) has/have flexible boundaries and may be provided in a housing.

Abstract: An automatic lubricant-dispensing device with a piston (3) disposed in a cylinder (4) and an electric motor drive unit (1,2) connected thereto has a circuit closer (21) to protect the device against moisture and/or explosion.

Abstract: A passive gravitational drip lubrication system which includes lubrication rate monitoring and control to provide a constant lubrication rate in which the lubricant flow from the reservoir is adjusted by an electromagnetic valve apparatus, a drop detection apparatus senses the amount of lubricant dispensed, and a servo control apparatus adjusts the preselected flow rate by adjusting the electromagnetic valve.

Abstract: A lubrication system for supplying lubricant to a plurality of antifriction bearings, and which has a lubricant supply tank and a closed circuit lubricant supply line having two ends which communicate with the tank. A pump circulates the lubricant through the line, and a pressure regulating valve in the downstream end portion of the line maintains a desired pressure in the line. A plurality of tap lines lead from the closed circuit supply line to respective bearings via a metering or controllable valve.

Abstract: A pneumatically-operated pump is provided that includes a body having a central bore with a liquid chamber for a slidable piston injector, a chamber for a removable reservoir, and an inlet and outlet for a gas. A priming conduit carries liquid from the reservoir mounted on the body to the injector in the liquid chamber which injects the liquid into a liquid line coupled to a fitting on the pump. The liquid line carries lubricant or other liquid from the pump (e.g., air tool lubricator) to an air tool or other article. A priming pump is mounted on the body and is capable of delivering a predetermined amount of liquid from the reservoir to the liquid chamber. The priming pump is used to fill the liquid line with liquid.

Abstract: A relief valve, anchored to a rotor plate, is centered in a concave housing area in a front journal bearing of an engine. Insetting the relief valve into the front of the engine correspondingly reduces the overall length of the engine. A semi-cylindrical auxiliary housing area is contiguous with the concave housing area. The auxiliary housing area and the concave housing area are spaced from the relief valve to provide a relief passageway for oil flow. The auxiliary housing area overhangs at least a portion of the relief valve. A relief hole in the relief valve leads to the relief passageway. Splashing of excess oil which is relieved from the relief valve is prevented, and smooth recovery of oil is enabled. Aeration is also lowered.

Abstract: A volumetric lubricant dispensing apparatus for delivering a precise volume of lubricant, such as oil, to a rotating machine element. The delivery mechanism includes a piston and cylinder assembly. A plurality of sensors are utilized to record operating conditions of the machine, element, environment, and lubricant. The apparatus is controlled either manually or with the aid of a controller unit such as a microprocessor. The output from each sensor is inputted into the microprocessor wherein an algorithm computes an responsive output. The responsive output is sent to the piston and cylinder assembly which maintains an optimum lubricant condition within the reservoir wherein a rotating machine element located.

Abstract: A device for the precise replacement of liquids before, during, or after operation of a mechanism such as, for example, an automobile motor or automatic transmission, includes a housing and a piston or diaphragm for separation of the housing into inlet and exit portions. A plurality of bags can be employed in the housing for inlet and exit portions and as a diaphragm. Pressure from the volume of liquid in a closed vessel that is to be replaced is used to measure the amount of liquid replacing the liquid that is in the closed vessel. The device can be employed during normal operation of the mechanism, and a method for the precise replacement of liquids employs the device during normal operation of the mechanism.

Abstract: A system for control and monitoring of the circulation lubrication of the bearings of the revolving cylinders and rolls in a paper machine or equivalent in which lubrication oil is fed from an oil-lubrication center or centers through a system of pipes into lubrication points. From these lubrication points, the lubrication oil is passed back through a system of return pipes into the oil-lubrication center or centers. The system includes actuator panels placed and grouped in the vicinity of the lubrication points primarily above the floor level of the paper machine hall or equivalent. From the actuator panels, lubricant feed pipes are passed to several lubrication points placed in the vicinity. The actuator panels have a feed-back connected regulation loop for lubricant flow quantity provided for each lubrication point, which regulation loop includes an oil-flow regulation valve, an actuator motor for same, as well as an oil-flow measurement device and a regulation circuit.

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 machine tool has a plurality of lubrication points to which lubricant must be delivered at specific maintenance intervals. At least some of the lubrication points are connected, via a system of lubricant lines, to a central delivery station for lubricant.

Abstract: An automatic device for replenishing the liquid oil and the like is composed of an oil container, a cap, an oil injecting seat, an oil blocking body, and a connection seat. The oil container is provided at the bottom thereof with a joint fastened therewith rotatably. The oil injecting is located in the joint and is provided at the bottom thereof with a cut. The connection seat is fastened at the top end thereof with the joint. When the oil consumption has reached an extent that the cut of the oil injecting seat and the oil level surface form therebetween a gap, the atmospheric air is drawn into the connection seat through which the atmospheric air flows into the joint via the gap, thereby resulting in an automatic replenishing of the oil. As soon as the gap is eliminated, the atmospheric air is kept out of the connection seat so as to bring about an end to the replenishing process of oil.

Abstract: A system to selectively lubricate and to continuously supply a forced air flow onto a machine cutting tool has a control valve to selectively communicate an air supply with a pulse generator which drives at least one liquid pump to control the discharge of liquid lubricant from the liquid pump into a continuous forced air flow from the air supply to discharge onto the cutting tool through a nozzle atomized lubricant and cooling air during machining and thereafter only forced air to evaporate and blow off the lubricant from the cutting tool and workpiece, to remove any residual material and chips of the machining operation from the cutting tool and to cool the cutting tool. To minimize the amount of liquid lubricant used by the system and the quantity of used lubricant which must be disposed of, the control valve allows air to flow from the air supply to the pulse generator only during machining when it is necessary to lubricate the cutting tool.

Abstract: An arrangement in connection with a lubricant dispenser including a frame, which frame contains a metering cylinder and a metering piston moving therein as well as structure for conducting lubricant alternately to each side of the metering piston. The structure for conducting lubricant includes a spindle positioned in the cylinder and provided with passages remaining open during pressurization, the spindle being arranged to move in the cylinder so as to permit flow of lubricant in consequence of a movement of the spindle alternately either via a control valve to one side or the other of the metering piston or directly to one side or the other of the metering piston, depending on dispenser. To improve selection of material, the spindle is arranged to move only by rotating around its longitudinal symmetry axis. The rotary movement of the spindle is arranged to be provided by a separate turning part moving back and forth and rotating influenced by lubricant pressure and spring force.

Abstract: Precise quantities of lubricant from separate reservoirs under automatic trol are injected into chambers of housings of shielded rolling element bearings. Separate feed line conduits directly deliver the lubricant to the shielded critical surfaces of such bearings and insure maintenance-free operation of machinery with which the bearings are associated.

Abstract: A lubricator pump having a replaceable cylinder piston assembly is disclosed for replacement or interchangeability with cylinders having different piston sizes. The interchangeability of the cylinder piston assembly allows for different lubricant output.

Abstract: An air tool lubricator which includes a body having an inlet and an outlet for a gas, a top bore, and a lubricant chamber. The first end of a lubricant conduit is coupled in fluid-flowing relation to the lubricant chamber, and the second end of the lubricant conduit is disposed in the outlet of the body and is capable of being coupled to a lubricant line. The lubricant line carries lubricant from the air tool lubricator to an air tool. Located within the lubricant chamber and capable of delivering a predetermined amount of lubricant into the lubricant conduit is a lubricant metering device or injector. Mounted on the body is a reservoir which is capable of holding a liquid lubricant, and which has a priming conduit through which lubricant may be delivered to the bore of the body. A priming pump is mounted on the reservoir and is capable of delivering a predetermined amount of lubricant from the reservoir to the lubricant chamber. The priming pump is used to fill the lubricant line with lubricant.

Abstract: An apparatus and method determines and controls the oil level in one or more refrigeration system compressors. The invention returns lubricating oil to the compressors to maintain oil levels sufficient for proper lubrication of each compressor, and also monitors the flow rate of oil returned to each individual compressor. A level sensor and a flow control device are connected to a control circuit to control the flow of lubricating oil returning to the compressors. The control circuit controls the return flow of oil as well as various other functions of the system, monitors compressor oil levels, and determines the rate oil is returned to each compressor. The method includes measuring system parameters, comparing measured oil levels to desired oil levels, and injecting lubricating oil into a compressor if the measured oil level is below the desired level. The amount of oil added is then calculated and the oil flow rate is measured.

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: A grease lubricating system includes a plurality of injectors for distributing grease to a plurality of lubrication points, an injector reset valve for resetting the injectors and a pump for supplying grease. The injector reset valve is located between the pump and the plurality of injectors and includes a piston and a large heavy duty spring which urges the piston into sealing engagement with an inlet port of the injector reset valve during a reset position of the valve. During a pressurizing portion of a pump cycle, grease entering the injector reset valve moves the piston out of sealing engagement with the inlet port of the injector reset valve enabling grease to flow from the inlet port through an internal chamber of the injector reset valve and out of a outlet port to input ports of the injectors through an injector distribution junction. Each injector then delivers grease to its respective lubrication point.

Abstract: A filter for use in a distributor valve arrangement, the filter having a filter base block having an identical dimension with feeder base blocks and bolted thereto in a stacked arrangement. The filter can be located at an inlet end of the distributor valve or placed in sequence at any position within the stacked arrangement for special filtering applications. The filter has a filter block mounted to the filter base block, which has a bore therein for receiving a cylindrical screen element which is held in by an external screwed plug. On an opposite side of the filter block is provided a screwed bore for applying an indicator to sense differential pressure across the filter element to detect a clogged filter.

Abstract: The present invention is a system for replenishing an article of equipment with a supply of lubricant. A housing is provided which defines a reservoir. The housing includes an open end connected to the equipment article such that the reservoir and the equipment article are in fluid communication. Lubricant is disposed in the reservoir and a check valve is secured at the open end of the housing to allow one-way flow of lubricant from the reservoir to the housing. Heating the lubricant to a predetermined temperature results in a precisely ascertainable mass of lubricant being forced from the reservoir to the equipment article.

Abstract: Apparatus for lubricating die and/or workpiece surfaces, the apparatus including a container adapted to capture a predetermined volume of lubricant. At least one nozzle is provided for spraying the volume of lubricant onto the die/workpiece surfaces when the volume is received from the container. A first valve is connected between the nozzle and container, and a reservoir of lubricant and a pump for circulating lubricant through the container and past the first valve at a relatively low pressure is provided, the circulation of lubricant occurring during a portion of a lubricating cycle when no lubricant is sprayed onto the die/workpiece surfaces. A second valve is located between the pump and container for interrupting the flow of lubricant past the first valve, and a blocking valve is located between the container and the reservoir for interrupting the flow of lubricant from the container.

Abstract: A calibrated engine lubricant dispenser has a lubricant reservoir, which houses the engine lubricant where the lubricant is stored for dispensing. An existing engine fuel container is aligned with the dispenser. When the user activates the dispensing, a calibrated amount of engine lubricant is dispensed from the reservoir into the engine fuel container. The engine lubricant mixes with the engine fuel in the engine fuel container so that the proper proportion of engine lubricant versus engine fuel is obtained in the engine fuel container.

Abstract: The specification discloses an apparatus for automatically measuring out and discharging desired quantities of fluid such as lubricants or coolants and the like from a self-contained supply of the same, and for pneumatically dispersing the measured quantities of fluid into and propelling it through either a common or a coaxial tube. The dispersed fluid is applied to a desired object or article, in particular a cutting tool, workpiece, operating tool, or the like, at a remote end of said tube, in the form of a pneumatic dispersion or mist of said lubricant, coolant, or other fluid.

Abstract: Embodiments of lubricating systems and methods for two cycle, crankcase compression, diesel engines wherein certain running components of the engine such as the crankshaft and pistons are each supplied with their own lubricating systems including independently operating lubricating pumps, each system is controlled so as to supply a finite amount of lubricant to the engine and then sense the engine running conditions to determine when the lubricant will have been consumed before additional lubricant is supplied. In addition, a control routine and structure is disclosed wherein lubrication is supplied to the engine before starting is initiated and wherein the amount of lubrication supplied is varied during break-in.

Abstract: The specification discloses an apparatus for automatically measuring out and discharging desired quantities of fluid such as lubricants or coolants and the like from a self-contained supply of the same, and for pneumatically dispersing the measured quantities of fluid into and propelling it through either a common or a coaxial tube. The dispersed fluid is applied to a desired object or article, in particular a cutting tool, workpiece, operating tool, or the like, at a remote end of said tube, in the form of a pneumatic dispersion or mist of said lubricant, coolant, or other fluid.

Abstract: A lubricating system and method of operating the system for an internal combustion engine wherein the amount of lubricant supplied to the engine from a positive displacement engine driven pump is varied by selectively delivering lubricant from the pump to the engine or bypassing the lubricant back to the return of the pump. The amount of lubricant supplied is varied by changing both the duty ratio of the lubricant supply and the duration of engine supply in response to a map of engine conditions. Various control routines are disclosed and in each the lubricant supplied to the engine is monitored so that once a finite amount of lubricant is supplied, lubricant is not supplied again to the engine until that amount previously supplied has been consumed.

Abstract: A device for metered delivery of a liquid or a viscous substance to a consumption point, which includes a container for receiving an amount of the substance, a delivery unit having a chamber for receiving the container and a displacement element displaceable between first and second positions for enabling flow of the substance from the container to the consumption point, a connection element which is separate from the delivery unit and is securable to the consumption point, the connection unit having an indicator indicating a predetermined amount of the substance to be delivered to the consumption point in the unit of time, and a control unit for controlling the drive which displaces the displaceable element.

Abstract: An automatic lubrication system comprising a series of divider valves operable periodically through a cycle in which charges of lubricant are delivered one after another in sequence to a plurality of points of lubrication, the valves being supplied with lubricant from a reservoir holding a supply of lubricant under pressure via an on-off control valve, the latter being controlled by a timer operable on receiving a timing start signal to time out an OFF period during which the control valve is closed, and having a sensor device responsive to completion of a cycle of operation to send a timing start signal to the timer, the supply of lubricant under pressure in the reservoir serving as both a power source for the operation of the valves and as a source of lubricant for delivery to the points of lubrication.

Abstract: A solenoid actuated air control valve and a plurality of liquid distribution pumps are mounted on a common elongated manifold having passages for supplying pressurized air and lubricating fluid to the pumps in response to actuation of the solenoid valve. Each of the distribution pumps has an air actuated reciprocating piston, and lubricating fluid is supplied to the manifold and distribution pumps through a line connected to a supply pump also having an air actuated reciprocating diaphragm or piston. The solenoid valve controls the supply pump in timed relation with the distribution pumps, and the supply pump is located within an annular filter unit submerged within a reservoir of lubricating fluid. Each distribution pump is connected by a flexible line to a corresponding spray nozzle having a check valve including a tubular plastic insert which confines a spring bias ball and a resilient annular seat for the ball.

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 selectively permits the porting between that valve unit and an adjacent valve unit to be modified so as to direct the output of lubricant to a different location from the output location which would occur in the absence of the manifold. The output can be directed to an output port of the valve unit in which the manifold is inserted (singling) or can be directed to an adjacent valve unit (crossporting). A number of such plates can be stacked to provide further selectivity in directing the lubricant output.

Abstract: The apparatus according to the invention causes the level of lubricating fluid in a crankcase of an internal combustion engine to be maintained at a predetermined level at all times without reliance on power to operate the valve used to control the flow of lubricating fluid coming from an auxiliary reservoir to the crankcase.

Abstract: A system is disclosed for supplying a lubricant to a bearing assembly, such as that in a gyroscope of a spacecraft. The system includes a housing which is connected to the bearing assembly and which forms a pressurized chamber. A collapsible member, such as a bellows, in the pressurized chamber houses a supply of lubricant. One or more valves regulate and control the flow of lubricant from the collapsible member to the bearing assembly. In response to the actuation of the valves, flow of lubricant is caused by pressure exerted on the collapsible member. Lubricant flow conduits may also be formed within the housing, so that lubricant may be provided directly to a portion of the bearing assembly.

Abstract: The present invention is a graphite lubrication apparatus for lubricating the support rollers of a drying kiln, dryer or the like by dispensing graphite powder across the surface of the rollers. It has a graphite storage means for storing the graphite powder to be used for lubrication; a dispensing pipe adjacent the graphite storage means and having a top and bottom and a plurality of receiving holes in the top thereof the receiving holes permitting communication of the graphite from the storage means into the dispensing pipe. The dispensing pipe also having a plurality of discharge holes positioned adjacent the roller. The discharge holes permit the discharge of graphite onto the roller. A discharge means discharges graphite from the dispensing pipe onto the roller.

Abstract: A lubricating system for an engine and particularly for a two cycle crankcase compression internal combustion engine wherein the amount of lubricant supplied by a reciprocating pump to the engine is varied by selectively delivering lubricant to the engine and bypassing lubricant from the pump back to the inlet side of the pump. The total amount of lubricant supplied is controlled by setting a duty ratio at the beginning of a control cycle and varying the time of the control in response to engine condition sensed during the control cycle so as to provide good transient control.

Abstract: A dosing device for a lubricating mechanism is constructed for discharging a measured volume of lubricant into a component to be lubricated, such as a rotary gear box in an aircraft. For this purpose the dosing device has a housing with a defined volume in which a piston is movable in an axial direction to define two chambers. The end walls of the housing are connected through quick coupling connectors to a lubricant supply and to the component to be lubricated. The device operates in such a way that the filling of one chamber with lubricant under pressure pushes the piston, and thus the lubricant in the other chamber, out into the component to be lubricated. Thus, always a precisely measured volume of lubricant is discharged from one chamber while the same volume is being filled into the other chamber and vice versa. A coupling adapter may be used for a quick reversal.

Abstract: An automatic oil additive injector is disposed over the drain opening in a bottom wall of an engine oil pan and extends into the oil pan. A side port is provided in a housing of the injector for allowing oil to drain therethrough when the oil drain plug is removed. Primary and secondary valve assemblies and a pump operator provided in the housing are activated upon removal of the drain plug to allow a chamber therebetween to fill with a predefined volume of additive, preferably silicone fluid, from a reservoir of the injector and which, upon engagement of the drain plug, dispense the fluid into the oil pan at each oil change to decrease aeration of the oil. In a second embodiment, the additive injector and reservoir are incorporated in the lubricating oil filter header.

Abstract: Embodiments of lubricant pumps for machines wherein the pump comprises a pumping plunger slidably supported within a bore. The quantity of lubricant delivered during a stroke of the pumping plunger is adjusted by means of a stop plunger which is mounted within the bore and which is contacted by the pumping plunger for limiting its degree of movement. In this way it is possible to maintain a minimum clearance volume under all conditions of stroke of the pumping plunger. Both mechanical and electrical drives for the pumping plunger are disclosed. In two embodiments of the invention, the stop plunger is controlled in response to the operation of the throttle valve of the engine. In two other embodiments the amount of lubricant pump is dependent upon speed of the engine but a connection to the throttle control is not employed and the operation is such that non-linear relationships between engine speed and amount of lubricant pump may be employed.

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 percussive, fluid-activated jackhammer includes a low pressure lubrication system having a liquid lubrication reservoir chamber formed in a bore of the jackhammer, the lubrication chamber being subject to low percussive fluid pressure in a front piston chamber but not to high percussive fluid pressure in a drive or return chamber of the device. An inlet passageway is provided for adding lubricant to the lubricant chamber. An outlet passageway is provided, with a metering device therein, for flow of lubricant into the bore of the device during reciprocation of a piston in the bore.

Abstract: An air actuated apparatus and method for lubricating conveyors such as chains and belts is disclosed, comprising a device including air actuated valves which are alternately opened and closed by a drive system powered from the conveyor movement. The drive system is connected to a delay valve which controls a fluid valve that enables lubricating solution to be applied to the conveyor. The apparatus and method are particularly suited for conveyors operating at high speed, and may also be used to control a plurality of lubricating applicators for different conveyors in a plant.

Abstract: A lubricating oil supplying system for a two cycle engine that includes a reciprocating engine drive lubricant pump and a solenoid controlled bypass valve for selectively delivering lubricant to the engine of by bypassing it back to the inlet side of the lubricant pump to control the amount of lubricant supplied to the engine. The duty cycle of solenoid is increased as the engine speed is decreased and the duty cycle is also decreased when the throttle is opened rapidly so as to insure the proper amount of lubricant flow to the engine under all conditions, both transient and steady state.

Abstract: A system for distributing measured quantities of viscous lubricant to a plurality of lubricating points. The system includes a plurality of injector cylinders and a container for viscous lubricant. A selectively operable hydraulic fluid pressure supply pump supplies hydraulic fluid to an hydraulic cylinder for pressurizing lubricant in the container at a low pressure to feed lubricant to the injector cylinders, and the fluid pressure supply pump supplies hydraulic fluid at a high pressure to the injector cylinders to feed lubricant to the lubricating points.

Abstract: A central-lubrication assembly, instead of a refillable lubricant reservoir there are two lubricant cartridges (8, 9) which are equipped with follow-up pistons (17, 18) and one of which serves for feeding a lubricant pump (3), while the other is designed as a replacement cartridge.

Abstract: In order to appropriately distribute a lubricating oil of high viscosity to lubrication points through a simple construction in oil and air lubrication, in a preferred embodiment of the present invention, three distributors 8, 9 and 10 are provided between oil feed passages 7, the most downstream one of which is connected at the downstream end of the passage to a fourth branch passage 14. Quantities of the lubricating oil are passed through the holes A, B and C of the first distributor 8, those E and F of the second distributor 9 and that H of the third distributor 10. Other quantities of the oil, which are nearly equal to each other, are sent to three lubrication points through the other holes D, G and I of the distributors 8, 9 and 10 and a first, a second and a third branch passages 11, 12 and 13. The three lubrication points are a point at contact-type oil seals 5, and two points in a four-train conical roller bearing 3.