Patent GB-450186-A (GB)
Title: Improvements in and relating to pressure lubrication pumps
IPC: F16N13/14
Filed: 1935-02-26
Abstract: 450,186. Lubricating-pumps. JAKOBSEN, S. O., H÷ievarde, near Haugesund, Norway. Feb. 26, 1935, No. 6194. [Class 102 (i)] In a pressure lubricating device for oil distribution of the kind comprising a single pump adapted to deliver in succession to a number of outlet passages through an intermittently rotated distributer, a rotatable pumpcasing is arranged with the intermittently rotated distributer which pump-casing by being rotated relatively to the distributer controls the passage of lubricant to and from the pump, and which contains a piston adapted to perform one charging and one discharging stroke for each locked position of the distributer. The pump cylinder 6 is rotated within the casing 1 having an oil inlet 3 by a drive shaft 4 provided with a pawl-and-ratchet wheel 5 to prevent back turning. The cylinder 6 contains a piston 8 ; a rod 9 having on its ends rollers 11 projects through the piston and through slots 10 in the cylinder and carries a slide sleeve 7. The lower enlarged end 12 of the cylinder contains control slots and passages and is surrounded by a distributer 16 having control slots and carried by a tube 15 surrounding the cylinder 6. The sleeve 7 is urged upwardly by a spring to maintain the rollers 11 in contact with a cam 17<1>, 17<2> carried by the distributer casing 15 whereby rotation of the cylinder 6 relative to the distributer casing effects reciprocation of the piston. A ring member 24 is pivotally mounted by trunnions 23 in the distributer 15 and has oppositely extending arms 25<2>; the lower part of the tube 7 is cut away to form a cam 27 acting in turn on lugs 261, 262 thereby depressing the arms 25<2> in turn into notches 29 in a ring 28 carried by the casing 1. As one arm 25<2> is depressed it rides on the surface of a notch 29 whereby the distributer is given a one-step rotation ; the distributer remains locked until the other arm 25<2> is depressed into a notch, causing a further rotation of the distributer. On the up-stroke of the piston, oil is drawn from the casing 1 through ports 42<2> in the distributer 16 and ports in the pump-cylinder 12 into the space 19 below the piston ; on the down-stroke of the piston, this oil is delivered through a port 44 in the distributer 16 through one of the ports 22 arranged around the base of the apparatus, and connected to the various delivery points. Also, on the down-stroke of the piston, oil is drawn from the casing 1 through ports 41<2> in the distributer 16 and through ports in the pump-cylinder 12 into the space 18 above the piston; on the up-stroke of the piston, a quantity of lubricant equal to that delivered to a port 22 is delivered through a port 43 in the distributer 16 and pipe 45, oil dripping from 46 being observed through a window 47, whereby the quantity of oil delivered to each port 22 can be observed. An arm 31 pivoted to the distributer casing 15 carries rollers 34 resting on the top of the slide sleeve 7 and abuts against a series of screws 33, one for each delivery port 22 whereby the amount delivered to each of said ports can be regulated.