30-08-1949 дата публикации
Номер: GB628481A
628,481. Force-feed lubricators. ATVIDABERGS SPARVAXLAR & SIGNALFABRIKS AKTIEBOLAG. Oct. 8, 1946, No. 30070. Convention date, Oct. 9, 1945. [Class 12 (iii)] A lubricant distributer comprises at least two reciprocating pistons driven by incoming lubricant under pressure and controlling each other mutually for the distribution of lubricant between two or more outlets, and is built up from block units having cylinder bores, each piston being arranged in a separate block. The distributor of Figs. 1 and 12 comprises two active or intermediate units 1, 3 and two end units 5, 7 which all have plane bearing surfaces and are held together at their corners by four bolts 8. The units 1, 3 have cylinder bores 19, 21, which are parallel to the bearing surfaces and are closed by plugs 23. Opening into each bore are two transverse passages 25, 27 which widen into threaded connections for outgoing conduits, and a longitudinal passage 33 goes through both units 1, 3 and communicates via a transverse passage in the bearing surface of the end unit 7 with a connection 17 for incoming lubricant. Communicating with each cylinder bore there are further longitudinal passages, i.e. 37, 39, 41, 43 on one side and 45, 47, 49, 51 on the other, so placed that they do not coincide when the units are assembled with their dissimilar surfaces against each other. Transverse passages, viz., 53, 55, 57, 59 and 61, 63, 65, 67 in the bearing surfaces serve to connect these longitudinal passages, the bolt holes 13, 15 forming connections between the end units 5, 7. In the cylinder bore 21 there is a piston 69 which has two circumferential grooves 73, 75 and 77, 79 in each piston-half, and in the bore 19 there is a piston 71 which has one groove 81 and 83 in each half; the pistons, which reciprocate freely without the influence of springs or the like and are a tight fit in the bores, each have two central grooves 85, 87 for co-operation with a guiding pin 89, which is displaceable in a bore 91 ...
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