Abstract: A lubricant supply system for continuously and automatically lubricating machine parts has a housing and a lubricant reservoir mounted in the housing. A lubricant metering device is also mounted in the housing. A control device is provided for variably operating the lubricant metering device. The control device has a receiver receiving by wireless remote transmission operating and service data.

Abstract: A lubricant injector and apparatus for lubricating especially chain conveyor rollers where bearings; can be refilled with lubricant via a fitting onto which the injector can be pressed. The injector has a housing inlet for receiving lubricant, and an injector tip for placement on the lubricant fitting. A spring-loaded movable piston actuated with compressed air is disposed in the housing, with the injector tip connected to the movable piston. An annular gap communicating with the inlet is provided between the housing and the movable piston having a discharge side, facing the injector tip provided with a coaxially disposed cylindrical chamber. The movable piston has a bore connecting annular gap and the cylindrical chamber.

Abstract: The central lubricating system has a progressive distributor (3) and a pump connected to the pressure connection of the initial segment of the progressive distributor, in particular for the manual feeding of lubricant by a hand pump or a lubricating gun. In order to improve such a central lubricating system so that upon manual or equivalent feeding of the lubricant preselected or adjustable delivery quantities of the progressive distributor are obtained by controlled cycles there is provided a predosaging unit (1) which contains a piston (16) which is arranged in the cylindrical space (12), can be displaced between two end positions and is spring-loaded at one end (spring 19).

Abstract: Of the progressive distributors a first so-called master distributor (9) is connected at one of its outlets by a control line to one of the control chambers of the second progressive distributor, this control chamber not having any direct connection with the feed line. In order that the system may be suitable both for intermittent and for continuous use with preselectable cycles corresponding to the control quantity and in order to avoid undesired multiple cyclings of individual progressive distributors with the result of over-lubrication, further progressive distributors (3, 4, 5, 6, 7, 8) are connected, each by a separate control line (10, 11, 12, 13, 14, 15), to other outlets of the master distributor (9). The corresponding control chamber of the further progressive distributors (3, 4, 5, 6, 7, 8) which are connected in this manner has no direct connection to the feed line (2).

Abstract: The double-conduit central lubricating system has two feed conduits (I, II) which are supplied from a pump via a switch device which operates as a function of pressure difference and via a change-over valve, at least one double-conduit lubricant distributor being connected to said feed conduits. In order to improve such a system in such a manner that even an extremely different requirement for lubricant at individual rubbing points can be satisfied and that, for instance, lubrication requirements of individual friction points of a ratio of 1:100 can be satisfied precisely in a simple manner with a single lubrication cycle, a control chamber (9, 10) of a progressive distributor (11, 12) is connected to an outlet of the double-conduit lubricant distributor (3, 4, 5) via a control conduit (7, 8) the pressure inlet (13) of said progressive distributor in the initial segment being connected with both feed conduits (I, II).

Abstract: A pressure controlled 4/2 way valve, particularly for the alternating control of the feed conduits of two conduit - lubrication systems. Three cylindrical spaces are formed in a housing connected by channels with one another and each contain a piston for the automatic control of medium flowing therethrough. The pistons are each displaceable between two end positions, one piston functioning as a control piston, a second as an auxiliary control piston, and the third as a reception piston. One feed conduit is connected respectively on each side to the cylindrical space for the reception piston. A pressure relief valve for hydraulic precontrol is disposed in the flow path between a pressurized conduit connection and the cylindrical space for the reception piston.