US1949272A

US1949272A - Force feed lubricator

Info

Publication number: US1949272A
Application number: US601557A
Authority: US
Inventors: Fries Nestor
Original assignee: C W MURCHISON; DUDLEY S GOLDING
Current assignee: C W MURCHISON; DUDLEY S GOLDING
Priority date: 1932-03-28
Filing date: 1932-03-28
Publication date: 1934-02-27
Anticipated expiration: 1951-02-27

Description

Feb. 27, 1934. FRIES 1,949,272

FORCE FEED LUBRICATOR Filed March 28, 1932 3 Sheets-Sheet 1 IN V EN TOR.

Feb. 27, 1934. N. FRIES FORCE FEED LUBRICATOR Filed March 28, 19:2

3 Sheets-Sheet 2 M INVENTOR.

BY p%%w ATTORNEY.

Feb. 27, 1934. FRlEs 1,949,272

FORCE FEED LUBRICATOR Filed March 28, 1932 3 Sheets-Sheet 3 2 M 9 BY Patented Feb. 27, 1934 UNITE STATES FORCE FEED LUBRICATOR Application March 28, 1932. Serial No. 601,557

9 Claims. (01. 184-27) This invention relates to improvements in force feed lubricators of that class wherein lubricating fluid is supplied under pressure to places where required. An object of the invention is to provide in connection with a reservoir, a number of pumpingunits having complemental leads connected therewith, and actuating means therefor constructed and arranged so that any one of the units may be readily removed from the reservoir independently without disturbing any of the other units or the actuating means, to permit replacement of the units when required. Other objects and advantages will appear in the following description.

- An illustrative embodiment of the invention is shown in the accompanying drawings, in which:-

Fig. 1 is a side elevation of a structure in which the invention is embodied, parts being broken away;

7 Fig. 2 is a detail cross section of members for adjusting the stroke of a pumping unit, the section being on the line 2-2 of Fig. 1;

Fig. 3 is a front end elevation of the structure with parts broken away; and

Fig. 4 is a fragmentary plan view of the appliance, the cover being omitted.

The illustrative embodiment of the invention consists of a reservoir 1 for holding a supply of lubricating fluid, a series of pumping units re- 1 movably mounted in the reservoir, and actuating mechanism for the units.

The reservoir 1 is preferably in the form of a box provided with a removable cover 2 having a fill opening 3 that is closed by a suitable lid 4. The cover also has another opening 5 over which is positioned a glass dome 6 hereinafter referred to.

The pumping units each have a frame provided with horizontal and pendent portions 7 and 8 respectively. The horizontal portion of the frame has an elongated vertical opening 9 therein and a tubular front end constituting a pump cylinder 10. Also, the rear end of said portion is tubular and constitutes a guide 11. The outer ends of the cylinder and guide are threaded internally and externally, each being provided with an adjusting collar 12 engaging the external threads thereof that bears against the inner face of the adjacent end wall 13--14 of the reservoir. A head fixture 15 extends through the end wall 13 into the cylinder and has engagement with the internal threads thereof, and is provided with a jamb-nut 16 that bears against the outer face of said wall, whereby the corresponding end of the frame 7 is supported and secured in connection with the wall. The fixture is tubular and has therein a spring-pressed outlet check valve 17 for controlling the outflow of fluid from the cylinder 10. The rear end of the frame 7 is supported in connection with the end wall 14 of the reservoir by a sleeve nut 18 that extends through y the wall into the end of the guide 11 with which it has threaded engagement, and bears against the outer face of said wall. In this manner the frame is held firmly in adjusted position within the reservoir. 65

A yoke 19 is disposed in the slot 9 of the frame 7 and is provided at one end with a plunger 20 that extends into the pump cylinder 10, and at its opposite end with a stem 21 that extends into the. guide 11, the yoke, together with its plunger 70 and stem being adapted to have longitudinal reciprocating movement relative to the frame. The pendent portion 8 of the frame '7 has a pump cylinder 22 provided with a check valve controlled intake 23, a check-valve controlled outlet 24 and 7 a reciprocating plunger 25. Also, a screen 26 is secured to the frame beneath the cylinder through which liquid is drawn from the reservoir into the intake 23.

The plunger of the supply pump A is 3.0- 80 tuated by a bell-crank 27 that is secured by a pivot 28 to the frame. The lower arm of the bell-crank extends into a slot 29 in the plunger 25 and its upper arm projects into an elongated slot 30 in the stem 21. An adjusting screw 31 is disposed axially in the outer end of the stem and projects into the slot 30 so as to contact with the upper arm of the bell-crank and actuate it during the forward stroke of the stem. The said upper arm has more or less play between 0 the adjusting screw and the opposite end wall of the slot 30 accordingly as said screw is adjusted and the stroke length of the plunger 25 is thus varied. The adjusting screw has an elongated hexagonal head 32 that extends into 5 the hexangonal bore of a swivel 33 which is totatively mounted in the sleeve nut 18, there being a thimble 34 secured on the outer end of the swivel for manually turning it to thereby adjust the screw.

The cylinder 10 of the feed pump B has an intake 35 provided with a cup 36 that extends through the opening 5 in the cover 2 into the dome 6 and receive liquid from the supply pump A as it is delivered through the outlet duct 3'? 105 and gooseneck 38 connected therewith.

The actuating mechanism for the pumping units has a drive-shaft 39 which is rotatively mounted in bearing brackets 40 and 41 secured respectively in the

side walls

42 and 43 of the 110 reservoir. The middle portion 39 of the driveshaft is hexagonal and has mounted thereon an eccentric 44 for each pumping unit and a bearing collar 45 adjacent each side of the ec centric that extends through an opening 46 made in the corresponding side of the frame 7. The openings 46 extend through the adjacent lower edges of the frame so as to permit removal of the frame by raising it bodily from the reservoir. The collars 45 have bearing contact with the faces of the frames 7 adjacent the correment of said frames is opposed in one direction as the yokes19 are driven in the opposite direction by their complemental-eccentrics 44. In this manner the

end Walls

13 and 14 of the reservoir are relieved of the brunt of the strokes of the feed pump, and also as the pressure of the collars against the frames is opposite the pressure of the corresponding eccentrics against the yokes, lateral flexure of the drive shaft is averted. 1 The front and rear ends 19' and 19" of the yoke are spaced apart and the eccentric 44 is disposed therebetween so that upon rotation of the eccentric the yoke is reciprocated. A chafing plate 47 is removably secured to the yoke so as to extend snugly between the inner face of its front end 19 and the eccentric, so that it may be conveniently renewed after becoming worn. The drive-shaft 39 is actuated by an operating lever 48 provided with a driving head 49 contain-' ing a ratchet member 50, preferably of the roll or type, which is secured on the shaft, so that when the lever is swung to and fro the shaft is rotatively progressed in one direction. Also, another similar ratchet member 51 disposed in the bearing bracket 40 is secured to the shaft and acts to prevent retraction of the shaft. The head 49 is held in'operating position on the shaft by a nut 52 threaded thereon, and the lever 48 has attached thereto a connectingrod 53 by means of a suitable fixture 53. Reciprocating movement is'imparted'to the connectingirod by mechanical power derived from any suitable source (not shown) by making a suitable connection therewith in the usual manner. Upon the opposite end of the drive-shaft is loosely mounted a hand crank 54 provided with jaws 55 on its hub that, are adapted to: have engagement with a pin 56 secured transversely in'the shaft when the crank is adjusted outwardly on the shaft. Also, the shaft has a portion 57 adjacent the hand crank shaped and threaded to receive the driving head 49 and the nut .52 therefor. Thus, the mechanical actuating means for the shaft may be selectively applied to either end thereof.

In using the appliance, the head fixture 15 on the feed pump of each unit is connected by a leading or distributing pipe 58 with a bearing 01' other part (not shown) requiring lubrication. The reservoir is then filled with theoil to be distributed, and the supply pumps of the units 1 are primed by initially operating the hand crank.

As the drive-shaft is rotated the plungers of the supply and feed pumps are reciprocated and oil from the supply pump is discharged through the gooseneck into the cup on the intake of the'feed 1' pump which may be observed through the glass cylinder.

plunger the port is first closed thereby and the oil previously drawn into the cylinder is expelled therefrom throughthe head fixture into the distributing pipe.

The quantityof oil fed into the distributing pipe is limited'according to the amount discharged from the supply pump into the intake cup of the feed pump, which amount is dependent upon the stroke length of the supply pump plunger 25. Should the discharge from the gooseneck be insufficient, it may be increased by turning the thirnble 34 so as to move the screw 31 inwardly whereby the play of the bell-crank in the slot 30 is. decreased and the stroke of the plunger 25 increased. 7 Or, by turning the screw outwardly the play of the bell-crank is increased and the stroke of the plunger is correspondingly decreased, thus reducing the discharge from the gooseneck. This adjustment is preferably made while the appliance is being operated by the mechanical actuatingmeans; 1

One of the features of the invention is the manner in which the pumping units are connectedly related with the driving means and the reservoir, whereby the frames of the units overhang the drive-shaft so as to permit removal of the .units readily without effecting the driving 'means. And, another feature is the provision of the collars 12 on the frames bywhich the frames are adjustablycentered in the reservoir in proper relation with the bearing members 45', and also the arrangement of the head fixture l5 and :the'

sleeve nut 18 in connection with the frame whereby upon loosening the collars 12 and removal of the fixture and sleeve nut, the'pumping unit may then be lifted free from the appliance and over hauled. This'fe'ature is especially desirable when numerous pumping units are arranged to be operated by the same drive-shaft. In such instances the appliance may continue in operation with the remaining units active after removal of any of the other units. As replacement of the individual units may be easily'and quickly made without material interruption of the driving means and operation of the other units, shutting down of the equipment lubricated by'the inventionis obviated; 4 a i I claim:

1. In alubricator, a'reservoir, a driving member rotatively mounted in the reservoir providedwith eccentrics and complemental concentric bearing collars, ratchet mechanism actuating said driving member, pumping units disposed in said reservoir each provided with co-operating supplyand feed pumps and a frame supporting said pumps that bears upon the corresponding collars/and having a yoke operatively connecting said pumps with the corresponding eccentric, adjusting collars on each frame respectively engaging the opposite walls of said reservoir to center said frame relative to said driving member, means securing eachfr'ame to said walls, and leads connected respectively with the outlets of the feed pumps of said units.

2. In a lubricator, a reservoir, a rotable drive-shaft mounted in the reservoir having eccentrics and complemental concentric bearings, actuating means for said drive-shaft, pumping units disposed in said reservoir and actuated re spectively by said eccentrics, each having 'a'frame that overhangs said drive-shaft and engages the corresponding concentric bearings thereon, ad-

justing collars on'each frame respectively .en-

gaging the opposite walls of said reservoir to center the frame relative to said drive-shaft, means extending through said walls engaging the respective frames to secure said frames in operative position, and leads connected respectively with said units.

3. In a lubricator, a reservoir, a rotatable driveshaft mounted in the reservoir having eccentrics and complemental concentric bearings, actuating means for said drive-shaft, pumping units disposed in said reservoir and actuated respectively by said eccentrics, each having a frame that overhangs said drive-shaft and engages the corresponding concentric bearings thereon, means extending through said walls engaging the respective frames to secure said frames in operative position, and leads connected respectively with said units. a a a 4. In a lubricator, a reservoir, a driving member mounted in the reservoir, mechanism for actuating said driving member, a series of units, each having a supply pump and a feed pump, and a frame supporting said pumps that bears upon said driving member, a yoke actuated by said driving member connected with the plunger of said feed pump at one end and having a slotted stem extending from its opposite end guided in said frame, a pivoted bell-crank extending into the slot of said stem operatively engaging the plunger of said supply pump, an adjusting screw in said stem engageable with said bell-crank limiting the play thereof in said slot to vary the stroke of the supply pump plunger, adjusting means for said screw, means for conveying the discharge from the supply pump to the intake of said feed pump, a lead connected with the outlet of said feed pump, and means for adjustably securing each unit in the reservoir with respect to the driving member.

5. In a lubricator, a reservoir, a driving mem-- ber mounted in the reservoir and actuating means therefor, a pumping means disposed in the reservoir actuated by said member, including a feed pump and supply pump for delivering lubricant from the reservoir to the intake of the feed pump, and having a frame supporting said pumps, said frame having a portion overhanging said driving member that bears thereon provided with slots extending through the lower edges of the frame beneath said member to permit the frame to be moved upwardly from engagement therewith, and means for securing said frame in connection with the walls of the reservoir adjustably with respect to said driving member.

6. In a lubricator, a reservoir, a driving member in the reservoir provided with actuating means therefore, pumping units disposed in the reservoir, each unit having a feed pump and supply pump for delivering lubricant from the reservoir to the intake of said feed pump, and having a frame supporting said pumps that bears upon said member, a yoke in each unit movable in the frame thereof operatively connected with the corresponding feed pump and actuated by said driving member, a pivoted member operatively connected with the supply pumpof each unit, means on the yoke actuating the pivoted member including an adjusting screw disposed to vary'the stroke of the supply pump plunger relative to that of the yoke, and means for securing the frame of each unit in the reservoir adjustably with respect to said driving member.

7. In a lubricator, a reservoir, a driving member mounted in the reservoir provided with actuating means therefor, a pumping means including a frame, a feed pump, a supply pump for delivering lubricant from the reservoir to the intake of the feed pump, mechanism actuated by said driving member operatively associated with said pumps provided with an adjusting screw to vary the stroke of said supply pump, securing means extending through opposite walls of said reservoir engaging corresponding ends of said frame, adjusting collars on the said ends of the frame engageable with the corresponding inner faces of said opposite walls to adjustably position said frame in said reservoir, and a swivel disposed in the adjusting means for one end of said frame operatively engaging said adjusting screw, said pumping means being bodily removable from said reservoir and driving member when said securing means are removed and the adjusting means are loosened.

8. In a lubricator, a reservoir, a driving member mounted in the reservoir provided with actuating means therefore, a pumping means including a frame, a feed pump, a supply pump for delivering lubricant from the reservoir to the intake of the feed pump, mechanism actuated by said driving member operatively associated with said pumps provided with an adjusting screw to vary the stroke of said supply pump, securing means extending through opposite walls of said reservoir engaging corresponding ends of said frame, and adjusting collars on the said ends of the frame engageable with the corresponding inner faces of said opposite walls to adjustably position said frame in said reservoir, said pumping means being bodily removable from said reservoir and driving member when said securing means are removed and the adjusting means are loosened.

9. In a lubricator, a reservoir, a rotatable driving member supported by said reservoir, provided with an eccentric and a bearing adjacent each side of said eccentric, actuating mechanism for said member, a pumping unit including a pump frame supported by said reservoir and which has engagement with the opposite sides of said bearings, and a plunger member operably disposed in said frame and having engagement with the opposite sides of said eccentric, said driving member, frame and plunger member being so arranged in the reservoir and disposed with respect to each other that when the plunger member is actuated, endwise thrust of the frame against the walls of said reservoir is prevented by said driving member.

NESTOR FRIES.