Patent GB-686430-A (GB)
Title: Improvements in or relating to apparatus for automatically oiling moving parts
IPC: B65G45/08
Filed: 1951-01-12
Abstract: 686,430. Lubricating. SCHLOSSHAUER, A. R., and REYNOLDS, E. S., (trading as HELIOS-APPARATE WETZEL & SCHLOSSHAUER)..Jan. 12, 1951 [June 28, 1950], No. 946/51. Class 12 (iii). In an apparatus for automatically lubricating moving parts such as the axles 32 of conveyer rollers, a lubricating head comprising a cylinder 5 and nozzle 34 are oscillatably and slidably mounted on a base 1, the mounting means being spring tensioned to the starting position shown in Fig. 1, and actuating means comprising a member 22 hinged to an extension 19 of the base 1 normally engages the supporting means and is actuated by movement of the part to be lubricated, the actuating means being disengaged by contact with means 28 on the base 1 after contact between the nozzle 34 and member 32, to permit the actuating means 22 and supporting means to return to their starting positions. The cylinder 5 is carried on a slide 4 mounted on a plate 3 which is pivoted at 2 on the base 1. A roller 6 at the rear of the cylinder 5 is held by means of a spring 16 in engagement with a cam surface 12 on a control lever 10 pivoted on a bolt 11 carried by the base 1. Another cam surface 14 on the lever 10 is engaged by a roller 9 mounted on the end of a spring-pressed pushrod 8 disposed within an extension 7 integral with the plate 3. The control lever 10 is held in a starting position by a spring 18 and a spring 26 acts similarly on the plate 3. The actuating lever is universally mounted at one end 21, and carries rollers 29, 30 at the other end for engagement with the rollers 33 of the conveyer for example. A pin 24 on a lateral extension of the member 22 engages a guide surface 25 on the plate 3. The member 22 is also spring tensioned towards its starting position. In operation, engagement of rollers 29, 30 by a roll 33 causes clockwise movement of the arm 22 and rotation of the plate 3 due to the engagement of pin 24 on the surface 25. The control member 10 is rotated in an anticlockwise direction due to the engagement of roller 9 therewith, and its engagement with roller 6 causes outward movement of the lubricating chamber 5. The nozzle 34 engages axle 32 and lubricant is discharged into the axle whilst the movement continues. When rollers 6, 9 reach the ends of the cam surfaces 12, 14 the nozzle 34 disengages the axle 32, and the rollers 6, 9 ride a certain distance on further cam surfaces 13, 15. When a roller 27 on the arm 22 engages a cam surface 28 on the base 1, the arm 22 is lifted out of engagement with the roll 33 and the parts return to their initial positions under the action of the spring means. The cylinder 5 has a central bore 35, Fig. 8, containing a piston 39 ha ving a reduced diameter portion forming a chamber 38. When the piston 39 is in its forwardly extended position under the action of a spring 41, lubricant is introduced . under pressure through an inlet passage 43 and passes through the space vacated by the piston stem 40 into a by-pass 44. During the working stroke of the piston 39, it is pushed back into the cylinder 5, thereby imcovering a port 45, and the stem 40 of the piston closes the inlet 43 and forces lubricant into the by-pass passage 44 and through port 45 into space 38 from which it is supplied through a passage 42 in the piston to the nozzle 34.