GB724347A - Improvements in automatic lubricating mechanism - Google Patents

Abstract

724,347. Lubricating. JENKINS & CO., Ltd., W. J. May 9, 1953, No. 12984/53. Class 12 (3) In automatic lubricating mechanism of the kind in which a lubricating nozzle is moved synchronously with a nipple on a moving chain conveyer or other apparatus by means operated by the moving apparatus itself, means being also provided for moving the nozzle transversely into engagement with the nipple, the nozzle returning to its initial position after the lubricating operation, the means for moving the nozzle transversely includes a track member pivotally mounted and engaging a follower in the nozzle, the track member being movable from a position inclined to the direction of movement of the apparatus to a position parallel to such direction. In the construction shown, a lubricating body 19 is slidably mounted on rods 18 forming part of a framework which-is attached to the side frame of a chain conveyer having spaced rollers 16 mounted on spindles 17. A bush 21 is rotatably mounted in the body 19 and is formed at one end with a segmental projection 22 and at the other end with a gear member 23 engaged by a rack member 26. The rack has a pin and slot connection with a pivoted arm 27. Slidably mounted in the bush 21 is a cylindrical member 32 recessed and flanged to receive a spring-pressed support 33 for a nozzle 36, which is adapted to be connected through spring-loaded ball valves and a flexible pipe with a source of lubricant. The member 32 is provided with a roller 46 arranged to run in a track 47 formed in a track member 48 which is pivotally mounted in bearings 51. Slidably mounted in the member 48 is a member 54 provided with abutments 56, 57, and with an extension 58 connected pivotally to one end of a link 59, the other end of which has a slot 61 for engagement by an anchor pin 62. The chain conveyer is fitted with driving members 24, into the path of which extends the segmented projection 22 on the bush 21. When a driving member 22 engages the projection 22, the body 19 is moved forwardly and the roller 46 rolls in the track 47 which is then in an inclined position, shown in Fig. 4, and causes the lubricating nozzle 36 to move axially towards a nipple 88 on a spindle 17, the nozzle eventually being depressed whereby a charge of lubricant is applied to the spindle. When the roller 46 strikes the abutment 56, the link 59 pivots about the pin 62 to drag the track member about its pivot 49 to the position shown in Fig. 2 and withdraw the nozzle 36 from engagement with the nipple 88. On further movement of the body 19, the arm 27 is engaged by an abutment 31 whereby the rack 26 actuates the gear member 23 to carry the projection 22 clear of the driving member 24. The body 19 then returns to its initial position either by gravity or by other means. The roller 46, on striking the abutment 57, acts on the pivoted link 59 to cause the track member 48 to return to its initial inclined position, shown in Fig. 4. If it is desired to lubricate every third spindle 17 only, an interrupted gear may be provided which comprises a rotatably mounted interrupted shaft 69 provided with a three-pronged star wheel 71 which can be placed in the path of movement of the driving members 24. The shaft 69 is provided with a cam 77 engaged by a spring-pressed rod 78 formed with a slot 81 for the passage of a pin 82 which also passes through a slot 83 in a pivotallymounted arm 84. The arm 84 has a latch 86 arranged in the path of movement of a catch 87 extending from the body 19. When the body 19 commences its return movement to its initial position, the catch 87 engages the latch 86 and stops the return movement until the shaft 69 has turnedthrough three positions determined by engagement of the prongs 72 of the star wheel 71 successively with driving members 24 on the conveyer chain. This causes the end of the rod 78 to engage the low side of the cam 77 and thereby allows the arm 84 to swing, freeing the catch 87 and allowing the body 18 to return to its initial position. The lubricating mechanism may be stopped if the handle 76 of the shaft 69 is pulled outwardly to a position in which the high side of the cam 77 is permanently in engagement with the end of the rod 78.