US1066238A - Lubricator. - Google Patents

Description

P. D. WINKLEY.

LUBRICATOR.

APPLICATION FILED JAN.29, 1912.

1,066,238. 7 Patented July 1, 1913.

3 SHEETS-SHEET l.

00 g} g I "will lim M w E rQ r mu" 7% A i IV] TNESSES P. D. WINKLEY.

LUBRICATOR.

APPLICATION FILED JAN. 29, 1912v 1,066,238, Patented July 1, 1913.

3 SHEETSSHEET 2.

WITNESSES In the drawings-1s illustrated a lubricator spect to the axis ofthe shaft the cam conadapted to-Ifeed two bearings, but it is obvious that the structure may be adtipted to feed any number of bearings by the mere duplication of the pump units and actuating cams. The pump units are absolutely identical and like parts in different units will be referred. to by the same reference numerals. \Vherc it is necessary tovdistinguish between the two units these will be referred to as A and B as marked on the drawings.

The actuating shaft is formed in two sections 16 and 17. which are co-axial, the section 16 being journaled in the end of the section 17 at 18 (see Fig. 3). Each section turns in a bushing 19 screwed into the case 1 and locked by a check nut 20. To prevent leakage of oil along the shaft each bushing 19 has a packing gland '21 toglzther with the usual gland nut 22 and a check nut 23. The portion 16 of the shaft carries a pin 24 and loosely mounted on this shaft is a hand crank 9.5 having a ratchet lug 26 adapted to engage pin 24 to permit turning shaft- 16 by hand in one direction only. The portion 16 also carries the actuating cams 27, one for each unit and a ratchetwheel 28, the cams and ratchet wheel being fast to this portion of the shaft. The portion 17 of the shaft carries a radial arm 29 having a pawl 3O coacting with ratchet 28, the pawl being urged against the ratchet by a plunger 31 and spring 32. The portion 17 may have an arm 33 adapted to be connected tosome rcciprocating element of the machine to be lubricated or may itself be so connected to such machine as to receive a slow rotary movement. In either event the etfect to impart a rotary movement to portion 16 of the shaft in the direction indicated by arrows invarious of the figures.

The cams 27 may beisaid to be compound in character; that is they combine a disk cam, adapted to impart reciprocating movement to the cam wiper and a cylinder cam adapted to impart an oscillating motion to the same wiper, the cam being so designed that the reciprocation and oscillation are successive and not simultaneous. The wiper is carried by a cylindrical guide pin 3 guided in a way 35 formed in the castings 10 parallel to the axis of the pump plunger. The wiper consists of a U-shaped. member having arms 36 and 37 which straddle the corresponding cam 27 so as to be moved up and down by it. The arm 36 carries a pin 38 which is eccentric with respect to guide way and runs in a groove 39 on the edge of cam 27. The groove 39 is of such form as to swing the arm 36 about the axis of way 35 at the proper time and to the proper extent.

Although the form of the cam is subject to considerable modification that shown in the rawing is laid out tollows Whh -sis s 0t tour 90 portions.

Two of these portions opposite to each other are of circ'ular contour, and concentric with the axis of the shaft, but of different radius. he intervening portions are of progressively varying radius as shown. Consequently when the circular portions of the cam are in contact with the wiper the latter receives no longitudinal motion. On these circular por tions of the cam alone, the groove 39 of helical form the pitch of the helix being equal but opposite on the two opposite circular portions On intervening portions of the cam the groove is straight or of zero pitch. Consequently during one quarter revolution the wiper while swinging to one extreme posit-ion moves longitudinally its full travel. During the next quarter revolution the wiper is swung by groove 39 to its opposite extreme position. n this position it is during the next quarter revolution moved back longitudinally its full travel. During the last quarter revolution it is swung back by groove 39 to initial position ready to begin its next longitudinal movement.

The pump properconsists of two alined cylinders 41 and 42, 42 being the measuring pump cylinder and having a ported bushing 43. This bushing is closed at its lower end by a screw. plug 44 and is longitudinally adjustable in cylinder 42 by means of a rod 45 swiveled at 46 on cars on casting 10, and threaded at 47 into a lug on the bushing. A look nut 48 limits the downward movement of the bushing. Cylinder 41. is closed at its upper end bya screw plug 49. The bushing 43 makes a close sliding fit in cylinder 42 and a plunger 50 works as a piston within the bushing and in cylinder 41. The upper end 51 serves as a force piston and the lower end 52 as the measuring piston. At mid length of plunger 56 is a collar 53 slotted at one side and there provided with a pin 54. The bifurcated end 55 of arm 36 lies in the slot of collar 53 and straddles pin. 54 so that plunger 50 is reciprocated and oscillated by similar movements of the cam wiper. The lower end 52 of plunger 50 has two groove ports formed in its side, a long one 56 which is the suction and discharge port and a short port 57 which is the waste portthrough which the surplus oil is wasted back into the reservoir during the initial portion of the forcing stroke of the measuring pump.

58 is the suction port in bushing 43 and coacts with port 56 during the suction stroke of the measuring pump. Oil reaches it from the reservoir through a port 59 in casting 10. Port 60 in bushing 43 is the discharge port'- with which port 56 coacts during the dis charge stroke. It leads to passage-61 (see Fig. 13) which is connected toisight feed drip pipe 62 and from this the oi'lmeasured by the piston 52 runs-into cup-63 from which the forcing piston draws its supply. 'Inpassage 61 is a ball valve (34 held down by a spring 05 and used for the purpose of preventing all flow through the discharge port until the waste port is closed. The spring is inclosed in a telescopic case'66 to preventit. @from accumulating lint from the oil filter, and other foreign material likely to catch in the spring.

The waste port 57 coacts during the initial part of the forcing stroke with a small waste port 67th] bushing 43. This leads to a passage 8 and upstanding tube. 69 through which oil overflows back into the reservoir. Ports 58 and 60 are relatively long. as shown in Fig. (3, but port 67 is short. so that while longitudinal adjustment of bushing 43 does .not afi ect the coaction of orts 58 and 60 with portv fit), it does vary t e portion of the stroke through which oil may waste back to the reservoir through the registery of portsl'f' and 7 with cach other. As the oil. not so wasted back is fed to the force pump the adjustment of bushing 43 controls the feed of oil. It will be noted that the stroke of the pump is unchanged by such adjust ment.

The end .51 of the plunger 50 has two groove ports Tl a suction port. and 72 a discharge port. The port Tl coactsv with a port 73 which is the termination of a passage T l leading from the sight cup 63. The port T2 coacts with a port T5 leading to discharge passage 12.

The operation of the device will now be traced. ln Figs 8 to l2 the plunger of unit A is just ready to begin its descent and plunger oi" unit I") just ready to begin its ascent. As shown in Fig. 3 plunger 30 of unit. l3 has SWIID" from the position in which it is shown in big. 1 to a posit-ion in which port 56 registers with port 59 and p rt T2 with 75. Consequently as the plunger moves up in this position oil from the reservoir is draiwn into cylinder 42 and discharged from cylinder ll to the hearing to be lubricated. At the end of this upward m vement plunger 50 is rotated until it assumes the position in which unit A shown in Fig. 9. The plunger then moves downwardly and as port it registers with port T3. port 56 with port 0 and port 57 with port 6? the following actions will take place. cylinder 41. Oil in cylinder 42 will be wasted back into the reservoir until port 5'7 overtravels port 67. after which the oil will overcome the spring 65. lift ball valve 64 and flow by 58. (it). 61 and 62 to sight cup 63. At the end of its downward movement the plunger is rotated back to its initial position.

To produce an initial feed of oil before starting a machine the ha-Iidcrankmay be used. The feed of 403, to any hearing may Oil from cup 63 will be drawn into be quickly adjusted by turning the rods 45 which project-through-the cover of the reservoirandare squaredto receive a key.

, lrlaving thus descrioed my invention, what .ltolaim is:

ii. In a lubricator, the combination of a pair of pump cylinders provided with suitable admission and discharge ports. the first being a measurin cylinder and the second a forcing eylin er; a sight feed device adapted to receive lubricant pumped by the first cylinder and feed it to the second cylinder: a ported piston mounted in each cylinder; means for reciprocating and oscillating the pistons in unison and with a constant stroke. whereby the ports of the latter are brought into operative register alternately with the inlet and discharge ports of the respective cylinders; and. means for varying the amount fed by the measuring cylinder. I

21 Tu a lubricator. the combination of a pair of alined pump cylinders provided with suitable admission and discharge ports. the first being a measuring cylinder, and the second a forcing cylinder adapted to reccive lubricant pumped by the measuring cylinder and to deliver it to the bearing to be lubricated; a ported plunger common to both cylinders; a mechanism adapted to reciprocate the plunger and to oscillate the same about its longitudinal axis to bring the ports therein into proper register alternately with the admission and discharge ports in the cylinders; and an adjustable member associatedwith the measuring cylinder and provided with a waste port whose position is adjusted by the adjustment of said member.

3. In a lubricator, the (aunbination of a casing; a pair of alined pump cylinders mounted in the casing and provided with suitable admission and discharge ports. the

first being a measuring cylinder. and the second a forcing cylinder adapted to receive lubricant pumped by the measuring cylinder and to deliver it to the bearing to be lubricated; a ported plunger common to 'both cylinders: a mechanism adapted to reciprocate the plunger and to oscillate the same about its longitudinal axis to bring the port therein into proper register alternately with the admission and discharge ports in the cylinders: an adjustable menibcr associatct'l with the measuring cylinder and provided with a waste port whose position is adjusted by the adjustment of said member; and means for ad ieting said member from a point outside the casing.

at. In a lubrieator, the combination of a. 1'2

measuring pump cylinder provided with ad-. mission and discharge ports: a sight feed device through which the measuring pump discharges; a forcing pump cylinder axially alined with the measuring mp cylinder also provided with adn'iission and discharge. ports. and adapted to draw its supply from the sight teed device and discharge it to the bearing to be lubricated: a plunger common to both cylinders and provided with ports adapted to coact with the admission and discharge ports in the cylinders; means for actuating the plunger with a constant stroke; and means for varying the amount ted by the measuring cylinder.

5. In a lubricator. the combination of a measuring pump cylinder provided with ad mission and discharge ports; a sight teed device into which the measuring pump cylinder discharges: a forcing pump cylinder provided with admission and discharge ports. said cylinder being axially alined with the urasurinnpump cylinder and adapted to draw its supply from the sight, teed device and discharge it to the bearing to be lubricated; a plunger common to both cylinders and yuovidcd with ports adapted to coact with the ports in the cylinders: means for reciprocating the plunger longitudinally w th a constant stroke, and form cillating the same about its longitudinal axis to bring its ports alternately into register with the admission and t'lischaree ports: and means for varyingthe amount ted by the measuring cylinder.

6. ln :1 lu ricator. the combination of a measuring pump cylinder provided with adthe bearing: to be lubricated and prt'ividcd with admission and discharge ports; a plunger eonunon to both evlim'lers and provided with ports adapted to coact with the admission and discharge ports in the cylinders: means for reciprocating the plunger longitudinally and for oscillating the same about its longitutilinal axis to bring the admission and discharge ports successively into register; a longitudinally adjustable bushing mounted in the measuring cylinder and provided with a waste port adapted to be overtraveled by the [)lltllgtl'; and means for adjusting the position of the bushing and consequently of its waste port.

7. in a lubricator, the combination of a pair of axially alined cylinders provided with admission and discl'iarge ports, the first being a n'ieasnrine cylinder and the second a forcing cylinder adapted to receive lubricant from the measuring cylinder and to diseiarg the same to the bearing to be lubricated: a plunger common to both cylinders and provided with ports adapted to register with the admission and discharge ports in the cylinders in different angular positions of the plunger; a cam adapted to longitudinally reciprocate the plui'iger with a constant stroke and to oscillate the same about its longitudinal axis to secure appropriate register of the ports; and means independent of the movement of the plunger adapted to vary the rate of feed of the measuring cylinder.

5. In a lubricator. the combination of a lttttt. t'lilt1' pump cylinder: a ported bushing znounttd in said cylinder, normally fixed therein but adapted to be adjusted to vary the amount ted therefrom; a plunger working with n the bu hing; suitable inlet and discharge mechanism for the cylinder; means t'or longitudimilly reciprocating the plunger: and means for adjusting the posi tion of the bushing.

t). In a lubricat r. the combination of a measuring pump cyl nder; suitable inlet and discharge i'i'iecln'ini m therefor; an ad justable bushing mounted therein and bro \ided with a waste port; a plunger working within the bushing and adapted to over travel the waste port; means for reciprocatii'tg' the plunger longitudinally; and means for :nljustine he position "of the bushing to vary the overtravel of the plunger past the waste port.

10. In a lnbricator, the eoinl'iination of: a measuring pump cylinder; :1 ported buslr ing mounted in said cylinder and adapted to be adjusted to vary the amount fed therefrom; a ported plunger working within the. bushing; means for imparting longitudinal reciprocation and rotary oscillation to the plunger; and means for adjusting the, longi tudinal position of the bushing.

11. In a lubrieator, the combination of a measuring pump cylinder; an adjustable bushing mounted therein and provided with inlet and discharge ports and a waste port; a ported plunger Working within the buslh ing and adap ed to overtravel the Waste port; means for reciprocating the plunger longitudinally; means for imparting rotary oscillation to the plunger to bring its ports into register alternately with the inlet and discharge ports; and means for adjusti pg the position of the bushing to vary the overtravel of the plunger past the waste port.

12. In a lubricator, the combination of a measuring pump cylinder having a discharge port leading to thepoint of use of the lubricant; a loaded valve in said dis charge port opening in the direction o l' flow therethrough but tendingto retard such flow; a plunger working in the cylinder; a movable member mounted in the cylinder and provided with a vent port adapted to be over traveled by the plunger; and means for adjusting the longitudinal position of such member to vary the point of such over tra 'el.

1 ln a lubricator, theconibination of a metzsuring pump cylinder having a dising said spring; a plunger working in said cylinder; a movable member mounted in the cylinder and having a waste port adapted to be over traveled by said plunger; and means 1 and adapted to vary the amount ted by the for adjusting the longitudinal position of said member to vary the point of such over travel.

14. In a lubricator, the combination of a measuring pum bushing mounte in said cylinder and having inlet and discharge and waste ports a ported piston working within the bushing cylinder; an adjustable and adapted to overtravel the waste port; j

means for imparting longitudinal recipro- 5 cation to the iston; means for imparting rotary oscillation to'the piston to cause its ports alternately to register with the inlet and discharge ports of the cylinder; means for adjusting the longitudinal position of I the bushing"; a sight feed device adapted to receive oil from the measuring cylinder; a

orted forcing cylinder adapted to receive its supply from the sight feed device and deliver the same to the bearing to be lubricated; a ported piston adapted to work in the forcing cylinder; and operative connection between the piston in the measuring cylinder and that in the forcing cylinder whereby they are reciproeated and oscillated in unison.

15. In a lubrieator the combination of a tank adapted to contain oil; an actuating mechanism mounted in said tank; and a plurality of lubricator units each adapted to feed oil from said tank to a corresponding point of use, each individually supported in said tank in operative relation with said actuating mechanism and each including the following instrumentalities, a fixed selfsustaining element provided with a measuring pump cylinder, a forcing pump cylinder, a sight feed cup and passages leading from the measuring pump cylinder to said cup and from said cup to the forcing pump cylinder; a reciprocating piston mechanism for the pump cylinders supported by said selfsustaining element and adapted to be driven by said actuating mechanism; and means supported by said self-sustaining element measuring pump cylinder.

16. In a force feed lubricator, the combination of a tank adapted to contain oil; a cover therefor having a transparent window; a shaft passing through the tank and supported thereby; a plurality of actuating cams carried by said shaft; and a plurality of lubricator units each adapted to feed oil from said tank to a corresponding point of use, each individually supported in said tank beneath said transparent window in opera tivc relation with said actuating cams and each including the following instrumentalities, a fixed self-sustaining clement provided with a measuring pump cylinder, a forcing pump cylinder, a sight feed cup and passages leading from the measuring pump cylinder to said cup, from said cup to the foreing pump cylinder, and from the forcing pump cylinder to a point outside said tank; a reciprocating piston mechanism for said pump cylinders mounted in said self-sustainingelement and adapted tt') be driven by said cams; and means supported by said self-sustaining element, operable from a point outside the tank and adapted to vary the amount fed by the measuring cylinder.

1n testimony whereof I have signed my name to this specification in the presence o two subscribing witnesses.

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