Abstract: A controlled replenishing lubrication system provides a desired supply of oil to a rolling element bearing by monitoring the changes in the rolling element ball retainer to shaft speed ratio. This ratio is a function of elastohydrodynamic oil film thickness between elements of the bearing. Changes in the speed ratio are monitored by a sensor and fed to a control system which commands a pump to inject oil into the bearing when the speed ratio varies from a predetermined limit. The rolling elements are moveably mounted for rotation within a retainer or cage in a bearing housing. The retainer includes a light reflective indicia. A shaft is rotatably connected to rotate the retainer and the rolling elements. The shaft also includes a light reflective indicia. The sensor is mounted on or adjacent the bearing for simultaneously emitting light toward the retainer and shaft indicia for sensing variations in reflection of the light therefrom and for generating pulses to the control system responsive to the variations.

Abstract: The invention relates to a progressive distributor for lubricants, comprising at least two distributor sections each including a double piston guided in a cylinder chamber for reciprocating therein between two end positions, a supply passage, and a number of passages interconnecting adjacent cylinder chambers as well as the first cylinder chamber and the last cylinder chamber in a common plane and leading to discharge outlets, the two end sections of each cylinder chamber acting alternately as a pressure chamber for pressurizing the respective piston and as a metering chamber for metering the lubricant. In known progressive distributors having cylinder chambers disposed in a common plane, the presence of entrapped air particularly in the long passages interconnecting the first and last cylinder chambers frequently prevents the lubricant from being properly discharged.

Abstract: A liquid media metering device of the type having a plunger body acting in a chamber between an inlet and an outlet and having a conical closing part to close the outlet and a piston part at its other end. A clearance between the piston part and the chamber allows liquid to flow past the piston. A sealing ring is applied with a light force against a cylindrical surface opposing the conical part surface such that in an uninfluenced condition and by means of friction it is retained in a given position in relation to the cylindrical surface.

Abstract: This invention relates to a central coolant system utilized to circulate filtered soluble oil coolant to a plurality of machining stations to flush machining waste from the stations. According to the invention, only the coolant required at the stations is continuously circulated in the system, and the machining waste is allowed to accumulate in the return flumes. This waste is periodically flushed, e.g., for 2-10 minutes every 2 hours or so, by additional coolant injected into the flumes. The flumes can be intermittently flushed by injecting a relatively small additional volume of additional coolant into individual collection flumes in series or by injecting a larger volume of coolant into all of the flumes simultaneously, both for a limited period of time. Substantial savings in pumping energy and overall coolant system size can be obtained.

Abstract: A progressive distributor 1 for lubricants is provided, where the lubricant is fed in under pressure via a joint channel 20 and then discharged in several discharge channels and ports 25 to 28. At least two successively disposed piston elements 4, 5 are each provided with a piston 8 in each case shiftable between two end positions in a cylinder bore 7 and provided with control grooves 9, 10. The piston subdivides the cylinder bore 7 into two outer metering chambers 17, 18 and at least one intermediately disposed control chamber 19. The piston elements 4, 5 are connected to each other such that the pistons 8 are shifted successively and that lubricant is transported from a metering chamber 17, 18 via a control chamber 19 to an output 25 to 28.

Abstract: A metering valve for the drop feeding of a liquid lubricant includes a metering assembly disposed in a valve chamber having an inlet and an outlet. The metering assembly includes a cylindrical member having a peripherally disposed spiral groove. A sleeve is press fit on the cylindrical member to render the groove a closed spiral metering channel. The metering channel communicates with an outlet in the cylindrical member that is generally aligned with the chamber outlet. An O-ring seal surrounds the aligned outlets and is disposed between the floor of the chamber and the metering assembly to preclude passage of lubricant from the chamber except by passage through the metering assembly.

Abstract: A cyclical lubricant feeder utilizing series spool valves to dispense measured quantities of lubricant to dispensing outlets from a common feed source with a plurality of the spool valves arranged in series in valve block assemblies which in turn are in series with one another whereby dispensing through the outlet for each spool valve in a block assembly is in progression with the other outlets from the spool valves in the valve block assembly is provided with a control valve controlling inlet and outlet flow to the valve block assembly bypassing flow from the inlet to the outlet when all of the valves in the block have been shifted to one side and bypassing flow from the outlet to the inlet upon reverse lubricant flow to the block only when all of the valves in the block have been shifted to the other side.

Abstract: The progressive distributor contains a control piston which is slidable in a cylinder. The piston contains a main channel and a plurality of radially disposed distribution channels for distributing lubricant. The cylinder has feed channels which are aligned with feed channels in a housing of a machine part to be lubricated and are arranged in offset relation to the distribution channels of the piston. The respective distribution channels and feed channels are arranged so that during movement of the piston in the cylinder, the various feed channels are progressively supplied with lubricant.

Abstract: A lubricant applying system which may have a plurality of lubricant injectors along a lubricant supply/return passage which receives lubricant under predetermined pressure through one end from a source for discharging and sequentially recharging the injector in one phase and in a second phase after the recharging permitting return of surplus lubricant from the injector through the passage to the lubricant source. A pressure sensor connected to the opposite end of the passage monitors pressure conditions in the passage. The lubricant injector has a displacement plunger and a cooperatively related metering plunger. The displacement plunger is responsive to lubricant passage line pressure which drives the displacement plunger in a displacement stroke, during which a passageway is connected by the displacement plunger with a metering chamber from which the metering plunger is driven by the pressure and the metering chamber charged while the metering plunger closes the lubricant passage.

Abstract: A procedure and means for lubricating the bearings in equipment comprising a plurality of oil-lubricated bearings (7). The oil is conducted to each bearing separately through a volumetric meter (4) which meters the oil quantity going to the bearing. The oil is conducted to a unit (14) comprising a plurality of volumetric meters (4), where it is distributed through a branching tube (2-3) comprised in the unit to each meter. A signal proportional to the flow passing through each meter can be conducted electrically further to a monitoring point.

Abstract: Portable liquid measuring and dispensing device comprising a main reservoir for containing oil and to which a chamber is connected for metering a predetermined quantity of oil, this chamber being solid with the main reservoir and having a visual indicator showing the quantity of liquid contained in the chamber. The device includes a liquid moving assembly solid with the reservoir and the chamber, this assembly being formed of a rotary pump brought into rotation by a D.C. motor connected to a power source including a polarity inverter switch having a pair of buttons, each actuatable to cause rotation of the pump in one of its two directions of rotation.

Abstract: A progressive distributor device for a liquid medium, particularly a lubricant, operating with a recurrent working cycle, comprising a plurality of distributors each having a housing and at least three consecutively displaceable working pistons mounted in cylinders of each housing and extending in parallel, the distributors being juxtaposed and hydraulically connected to each other in a manner so that for the working cycle, a first working piston of a first one of the distributors controls a second working piston of a last one of the distributors, and a first working piston of the last distributor controls a second working piston of a next to the last one of the distributors, a second working of each of the distributors connected to control a third piston of another distributor, with the third piston controlling a fourth piston of its distributor.

Abstract: The present invention comprises an apparatus for producing high pressure fluid by means of a cylinder having a reciprocatingly sliding ram inside, suction and pressurization of the fluid being performed by the reciprocation of said ram. In the apparatus, an oil chamber is positioned on the intensifying side within said cylinder, and lubricating oil in said oil chamber is caused to have a pressure equivalent to that of the high pressure fluid produced. This oil pressure is transmitted to the slidable contact portions of the ram. The apparatus is capable of detecting the lack of lubricating oil, when such lack of lubricating oil occurs.

Abstract: Microlubrication system to divide and distribute a flow of lubricant automatically to one or more machines needing lubrication. Fail-safe, accurate distribution is provided by diverting flow of lubricant from the distribution system most of the time, allowing lubricant to be distributed only at intervals. When the lubricant is being distributed, it flows at a high enough rate to allow accurate metering and division of flow, but the overall delivery rate is low enough to prevent wasting the lubricant. The system is preferably provided with fail-safe means to ensure lubrication or to shut off the machines to be lubricated in the event lubrication fails and cannot be quickly restored.