GB938076A - Improvements relating to lubricators - Google Patents

Abstract

938,076. Lubricating. FRANZ MORAT G.m.b.H. June 28, 1962 [March 28, 1962], No. 24922/62. Class 12 (3). In lubricating apparatus with oil delivery means to a number of points cut off by means of an electromagnet 5 from an oil tank 1 (Figs. 2 and 3) communicating with the atmosphere, there is a separate valve 11a, 11b, 11c, 11d, 11e or 11f for each oil outlet from the tank 1 into a respective pipe 20 leading to a lubrication point, and the electromagnet 5 is operated so that all the valves are opened when it is energized and closed when it is deenergized. All the valves have a common mounting, e.g. a plate 7, each one being forced against its seat by a spring 12. The plate 7 is connected to a solenoid core 6 and forced by a spring 10 (of greater tension than the total tensions of the springs 12 when the valves are closed), in the direction of valve closure. The valve seats are at the upper ends of tube lengths 13a, 13b, 13c, 13d, 13e and 13f, as shown, which may be of flexible material, communicating with the pipes 20, each lower end of which is mounted over ducts 18 leading to a drip chamber 19 communicating with a pipe 20, and of diameter and volume greater than that of the interior of the tube length. An adjustable screw plug 16 is mounted against each tube length adjustable to variably modify the cross-section of its passage by means of a ball 15. The tank 1 is a cylinder, closed by a cover 2 and a base closure 3 held against the cylinder by through bolts 4, 4<SP>1</SP> parallel to the cylinder axis. The cover 2 is open at the top, being oil-filled through a pipe 21, and accommodating a three-plug socket 24 to which two current supply cables 25, 29 pass from the base 3 through axial bores in the through bolts 4, 4<SP>1</SP> (Fig. 8). A lid 32 for the cover 2 may be fitted with two electrically-connected plugs 30<SP>1</SP>, 30<SP>11</SP> occupying two plug holes of the socket 24 when the lid 32 is mounted for continuous lubrication. In place of the lid a hollow body 41 may be mounted enclosing an electrical time mechanism 38, 39 (Fig. 11) and fitted with plugs such as Ia, IIa, which enter the plug holes I, II, III of the socket 24. The time mechanism comprises a motor 38 and a reduction gearing 39 driving a cam 35, to operate a microswitch 36 electrically connected to the solenoid 5 to give intermittent lubrication. The base 3, having an arm 3a for fastening the apparatus to a stationary part of a machine to be lubricated, is formed with a recess 3<SP>1</SP> (Fig. 6) between two rows of tube lengths 13a . . . 13f, bosses therein being engaged by the bolts 4, 4<SP>1</SP>, and to it is screwed a base-plate 17.