US1158614A - Lubricator. - Google Patents

Description

WM by QM B WOOD.

LUBRICATOR. APPLICATION FILED NOV. 14, 1913.

5 SHEETS-SHEET lnmliu llll II Attest d F gym In ventor:

tented Nov. 2, 1915.

R. WOOD.

LUBRICATOR. APPLICATION FILED NOV. 14. 1913.

Patented Nov. 2, 1915.

5 SHEETS-SHEET 2.

' M Wong, Inventor:

%1 Atty,

COLUMBIA PLANOGRAPH 60.. WASHINGTON. D. c.

R. WOOD.

LUBRICATOR.' APPLICATION FILED NOV. I4. 1913.

' 5 SHEETS-SHEET 3.

Attest: M w4, Inventor: y XMZL-W 3M #7 n Aw COLUMBIA PLANCIGRAPH C0.,WASHINGTON, D. c.

Patented Nov. 2, 1915.

LUBRICATOR. APPLICATION FILED Nov. 14. 1913.

5 SHEETS-SHEET 4- Mlliiiii. 73

Inventor:

y AttJZ COLUMBIA PLANOORAPH C0..WASHINuToN, D. c.

Patented Nov. 2, 1915.

R. WOOD.

LUBRIQATOR. APPLICATION FILED NOV. 14. I913.

5 SHEETS-SHEET 5- am Qhwe, Inventor:

Patented Nov. 2, 1915.

an F1,

ROBERT WOOD, OF NEW YORK, N. Y., ASSIGNOE TO THE NATHAN MANUFACTURING COMPANY, OF NEW YORK, N. 'Y., A CORPORATION OF NEW YORK.

LUBnIca'ron.

Specification of Letters Patent.

Patented Nov. 2, 1915.

Application filed November 14, 1913. Serial No. 800,976.

To all whom it may concern:

Be it known that I, ROBERT Wooo, a. subject of the King of Great Britain and Ireland, residing at 435 East Fourth street, borough of Brooklyn, city ofNew York, in the county of Kings and State of New York, have invented certain new and useful Tmprovements in Lubricators, of which the following is a specification.

This invention relates to force feed lubrlcators for locomotives. It's novelty consists in the construction and adaptation of the parts, and the result is a lubricator operated in synchronism with the admission of steam to the cylinders and delivering oil to such cylinders through sight feed chambers devoid of pressure; one capable of lubricating an air pump when the cylinders are not operated, as while coasting or standing still, one which has few and simple parts' which are readily made or replaced, has no actuating springs and is capable of accurate adjustment.

in the drawings, there is shown a preferred form of device embodying the invention, but it will be understood that variations may be made in the proportion and somewhat in the arrangement of the parts without departing from the principles of the invention.

In thedrawings, Figure 1 is a view of a locomotive showing a general method .of

attaching the lubricator thereto; Fig. 2 is a front elevation of a preferred form of the device on an enlarged scale; Fig. 3 is a top plan view of the parts shown in Fig. 2;

Figs. 4: and 5 are vert cal transverse sections on the planes of the lines 1at and 55,

respectively, of Fig. 3, and Fig. 6 is a perspective detail of the connectionv between the rocking arm and the return piston.

In the drawings, 10 indicates a locomotive ofusual form provided with two cylinders 11, one on each side (only one being shown),

each supplied with steam from the boiler which is divided in the particular device shown, into four parts, viz., an actuator indicated generally at 16, and three feeding devices indicated, respectively, at 17, 18 and 19. A steam supply pipe 20 leads from the steam dome to the upper part of the actuator through the usual insulation of the boiler shell to conserve its heat. A second steam supply pipe 21 leads from one of the cylinders 11 near its admission port, for instance, from the indicating plug through the shell covering of the boiler to a three way cook 22 which is provided with an operating handle 23 and which controls a pipe 2 1 leading to the lower part of the actuator. Three oil feed pipes 27, 28 and 29lead re spectively, from the feeding devices 17, 18 and 19 to the air pump 13, the service pipe 12 of the right hand cylinder 11, and the similar supply pipe of the left hand cylinder. These pipes are all placed close to the steam conveying pipes and preferably through the insulated shell of the boiler in order to eli'ect an interchange of the heat and deliver the oil to the cylinders at the proper temperature. A branch pipe 25 leads from the steam end of the air pump 13 to the three way cook 22. These pipes conveying steam and oil are shown in dotted outline only in Fig. 1 in order to avoid confusion.

We will next describe the actuator, which is in effect a species of pump. There is ar ranged at a convenient point within the easing 15, a cylinder 30 which contains a large bore 31 adapted to receive a piston 32 and a reduced bore adapted to receive a push rod 33 made integral with or secured to the piston. The cylinder may be secured in place by any convenient means as an eX- panded flange 34- adapted to engage one wall, and an annular cap flange 35 adapted to engage the other wall, of the casing 15;

a passage '63 which leads in turn to an oil rescylinder 51 contains a piston 53iwhich at ing 15 is a rock shaft 4:0 on which is keyed a lever 41 adapted to be engaged ;by the end of the push rod 33 beneath the shaft and the upper end of which, above the shaft, is provided with a' fork a2 having slots 4:3 tor-e ceive a transverse pin 1-4; secured :to one end of the piston 38. At one end the rock shaft is provided with a hand wheel 45 by which, when desired, it can be manually manipulated.

All of the three feeding devices are alike in their main features and we will only'describe in detail the one 18 which supplies oil to the right hand cylinder 11,. This vice is shown in section in Fig. Arranged adjacent to one-wall. of the casing 15 is-ia housing provided at a convenient place with a projecting cylinder ,51 en-tending through and across the casing and held in place by an apertured cap fiangehfl. The

one end, is provided with a transversepin tie-adapted to engage slots formed.- in a forked end of a rocking arm 57 keyed to the shaft 410. At its opposite end the piston 53 is reduced to form a ram 58 adapted to reciprocate in a bore formed in the housing 50.

Near the bottom of the casing there is a port -60 leading to ,a vertical channel 61 which leads in turn to the bottom of the interior of the cylinder 51 and serves as an oil inlet for the cylinder. iabove the cylinder similar channel 62- which serves as an oil outlet for the cylinder, leads to a cross 1.5 into its interior. If toran reason theoil coming up through the channel '62 should press upward too far it would force back the piston 68 and pass through the overflow channel indicated.

A set valve 71 having. a conical tip is ada ted to .en a 'e the up: errim of an outlet passage 72 provided at the bottom of the reservoir 64. This valve is screw-threaded into a plug 73 at the :top of the housing 50 and having a squared tip 7 1- is readily adjusted from the outside. The outlet passage 72g'leadsrto a sighting chamber 75 provided with one or more transparent windows 76 (preferably made of mica) held in position in threaded frames 77 screwed into the hous- 1 ing. Beneath this chamber 75 there J's-an 65 outlet to'another chamber 78 controlled by a spring pressed check valve 79 com neoted in turn ibya passageway 80 PBOVHlBCl with one or more check valves 81 to the pipe 28, a union 82 securing such pipe to a nipple 83 threaded into the casing. 7 The three cock-22 when'turned adapted to shut ofi" thesteain coming from the cylinder 11 through the pipe 21' and to turn on the steam coming from the air pump steam supply through the pipe 25, it ibeing understood that theinlet from the pipe 25 is closed and that from the pipe 21 is open, and vice versa.

llhere are two cu-toil? yalves 56, one ineach gifeedingderice 128 and 159. They are connectedstogetherbyya sl1. )1.*-t sha-f.t 85:,to wh ch one'end isls'ecused a4c 1386 se-- cured in turnto a linl;.8Z'piroted 'to; s c-rank:

e j way 88 seoureclfto the plug {3.9 of the .t

er the cook 22. ,By ,this mechanism ,Whe

handle 23 is turned'to shut =05 steam from the pipe 21 coming-.- i roin the .Qy-l-inder 11, simultaneously and automatically the values 66 areturned and clese the-ohannelstl in the f-eeclingscleiuces wand l 1- eadingto these. cylindersso that no oil can be supplied to thesercylin-ders while-the-engine is not runningg I It will he understood that there are no cross; partitions in the casing15. It constitutes a continuous ollalnheracross which are arranged thecylinders;30and3ipt the aotuatolnandzthe {three cylinders 51 of the steeding devices. 'Theioil is placed into the casing through va plug 90 having a strainertll.

A- steam exhaust pipe 92 is provided Joeneath-ithe eylinder.iiOtsse Fig. 4). r

The operation. of the device is as follows: It 7 will .be {assumed that the. interior of the casing has been supplied with a proper quantity and q ality iofoil, that the :looomotive is. running normally that the three way cool: 22 is. ;turn ed to admit steam' from the pipe 121 through the cock-"and branch pipe 24: into -.the actuator cylinder 30.. This sz'tfiflfl n comes from the cylinder-11 under the pmssureeXist-ing in it when it is introduced into the cylinder: 11, there beingv pr e ica ly no loss'oteither pressure or heat n' travel throughthe pipe 21 as the latter is in t e insu:

la ed shelliof'the boiler. The

steam :heing .adm-itteduto the cylinder 30 pushes-thepi-ston Ztoward the 15 A.) land niouesythe pushtrrod 33in the same di ection "This-nodcontacts with the lower end 1 of the rocking arm A1 and rocks the shaiit 5L0 gto1the left or clockwise: As

soon as this movement takesplace, each of the pistons r53oonnected to the rocking levers .57.:also keyed; to the shaft. .40 (see Fig.1 5). are movedzto'the. right and as theyfinove, if there is oil in-Ythe bore 59 and pie sageway 8.0, it is forced forward byl-the action of-the .ram'fifi past the ;valves81 into the pipe .28, When the piston witliin ithe cylinder 11 reaches a certain position with in such cylinder the steam coming into the cylinder through the pipe 12 (or directly from the steam space within the boiler) is cut off by the usual slide valve provided'for that purpose, and the pressure of the steam in the supply pipe 21 and branch pipe 24 of course falls accordingly. In the meantime, however, it will be observed there has been a free communication through'the pipe 20 from the steam dome of the boiler tothe right'end of the piston 38 in the cylinder 37 of the actuator (see Fig. 4). This steam is at a constant pressure equal, of course, to the initial pressure of the steam in the pipes 21 and 24. As soon, therefore, as the pressure on the piston 32 falls to a point, considering its cross sectional area, that is less than the pressure on the piston 38, the latter moves toward the left and, acting upon the forked end 42 of the rocking arm 41 through the pins 4 1, rocks the shaft 40 anticlockwise and forces the piston 32 back to its initial position, any steam in the cylinder 30 which passes theend of the piston32 passing out through the pipe 92. As soon as'the shaft 40 is rocked in this direction each of the pistons 53 are moved toward the left and create a suction in the cylinder 51 which draws the oil from the interior of the casing 15 through the port 60, the check valve 65, channel 61 and cut-off valve 66 into the cylinder 51. As soonas steam is again admitted tothe pipe 21 the actuator piston 32 is again moved to the left notwithstanding that such movement is against a volume of steam of equal pressure through the pipe 20 upon the piston 38 because the cross sectional area of the piston 38 is made less than that of the piston 32 for precisely such purpose of making the resultant pressures on the pistons unequal. When this movement takes place the piston 38 is returned to its initial position, and so are all of the pistons 53. But the latter pistons in their movement to the right not only move their rams 58 to force the oil to the pipe 28, but the right faces of these pistons moving along their cylinder, force the oil which has been drawn into such cylinders out of them and into the channels 62, it being prevented from going back through the channel 61 and port 60 by the check valve 65. From the channel 62 it is forced through the channel 63 into the reservoir 6 1- whence it is allowed to drop by gravity into the sighting.

chamber 7 5, past the valve 7 9, into the cylinder 78 and bore 59, whence, as before, it is forced through the pipe 28 to the cylincut off from such cylindersits pressure falls .ated as stated, it will readily be seen that a constant supply of oil is being delivered through the pipes 28 and 29 to the locomotive cylinder and through the pipe 27 to the air pump, such delivery synchronizing with the admission of steam thereto and be ing out off when the steam is cut off. Also, it will be seen that as the steam supply pipes are arranged alongside of the oil sup ply pipes there will be an interchange of heat tending to raise the temperature of the oil at the point of delivery to render it fit for lubrication.

If the engine is stopped from any cause,

no oil is needed for the cylinders 11, but oil is needed for the air pump 13. In such case the handle 23 of the three way cock 22 is turned. This cuts off the steam to the branch pipe 24 from the pipe 21 and lets in the steam from the pipe 25 and the actuator is operated as before. But it also closes the valve 66 in each of the feeding devices 18 and 19 while it does not effect the device 17 which has no such valve. Consequently, while the cylinders 11 are no longer supplied with oil the pump 13 is supplied as before. hen the engine is started again the cock 22 .is turned back to its original position. The hand wheel 15 enables the operator to rock the shaft 40 to operate the feeding devices if the actuator is not working so that the engine cylinders or the pump might be lubricated although the steam supply were cut off. This hand manipulation also may prove useful in other ways.

It is obvious that the actual boiler pressure may vary between wide limits without affecting the mode of operation of my de vice because it is the constant boiler pressure on a small piston as opposed to an identical intermittent pressure on a large piston which causes such operation. a i

From the fact that there is no pressure in the sight chamber 1 can use thin mica or glass windows which require no strength and which eliminate all errors of observation as to the amountof oil fed past the windows due to refraction in thick or curved glass.

.t will be noticed by those skilled in the art obtained by means of the described apparatus a movement of the actuating device shaft adapted tobe moved in one direction of the lubricator which synchronizes with the time when the live steam is within the locomotive cylinder and that consequently there is an injection of oil into such cylin der during such period of steam admission Also the gradual decrease in pressure inside of the cylinder containing the actuator piston when the cut-off takes place inthe main cylinders provides an elastic cushion for such piston so that when the constant pressure of the steam is exerted to reverse its movement no jar isproduced upon any-of the parts of the device, but the movement is smooth and easy.

.It should also be noted that by reason of the fact that both the intermittent and constant steam supply comes fromhthe same source, viz: the boiler pressure, any variation in this pressure will not altect' the oporation of the device for the same relative pressures will always be exerted on the alternating parts no matter what the actual pressures may be. This enables me to dispense with springs and other complications in the production of the desired reciprocating movement and results in a simple and eflicient device.

What I claim is:

1. In a lubricating device for-engines, an actuator including a piston and means for supplying steam thercto at the same time and under the same pressure that it is supplied to the engine cylinders and cutting it off when it is cut off from suchcylinders, and a second piston adapted to be moved in a reverse direction from that of the first piston and means for supplying steam thereto constantly from the boiler.-

2. In a lubricating device for engines, an actuator including a piston and means for supplying steam thereto at the same time and under the same pressure that'it is sup plied to the engine cylinders and cutting it off when it is cut off from such cylinders, and a second piston adapted to be moved in a reverse direction from that of the first piston and means for supplying steam thereto constantly from the boiler, in combination with an oscillating device including a shaft.

'8. In a lubricating device for engines, an actuator including a piston and means for supplying steam thereto at the same time and under the same'pressure that it is supplied to the engine cylinders and cutting it ofii' when it is cut off from such cylinders, and a second piston adapted to be moved in a reverse direction fro-mthat of the first piston, and-means for supplying steam there to constantly from the boiler, in combination with an oscillating device including a by the intermittent pressure of the steam on the first piston and in the-opposite direction Eby the constant pressure of the steam on the second piston.

bination with an oscillating device includf ing a shaft adapted to bemoved ii'rollifll-j rection by the pressure 01 the steam on the first piston and in the opposite direction by the pressure of the steam on the second piston. i V

,5. In a lubricating device for engines, an actuator including a piston and means for supplying steam thereto atthe same time and under the same pressure that it is sup plied: to the engine cylinders and cutting it ell when itis out off from suchxcyl'inders, and a second piston adapted to be moved in a reverse direction from that of the piston, "and means for supplying xsteam thereto constantly from the boiler, incombination with an oscillating device including a shattadapted to be moved in one direction by the pressure of the steam on: the first. piston and in. the opposite direction by the pressure of the steam on the-second piston, the cross-sectional area of the first piston being greater than that of the second piston.

16. In a lubricating device forengines, an

actuator including .ap-iston and, means for 7 supplying steam thereto at the same time and under the same pressure-that it is supplied to the engine cylinders and cutting it 05 when it is cut off from such cylinders, and second piston adapted to be moved in a reverse direction from that of the first piston, and means for supplying steam thereto constantly from the boiler, in com bination with an oscillating shaft adapted to be moved in one direction by the inter mittent pressure of the steam on the first piston and in the opposite direction by the constant pressure ofthe steam on 'lI-hQSBCOIlCl piston, the cross-sectional area of the first piston being greater than that of the second piston. 1

7. A lubricating device comprisingan oil reservoir, apiston adapted to be recipro-.

ca ted, a ram moved from the piston to force the oil from the reservoir, and means for moving the piston synchronouslywith the I admission and cut offof steam to an engine cylinder including a' second piston, a pipe adapted to conduct steamffrom the engine cylinder at" its inlet port to such piston, and

means for returning the second piston to its original position, consisting of a third pis ton, and a pipe adapted to. conduct steam from the boiler theretol i 8. A lubricating device comprising an oil reservoir, a piston adapted to be reciproone from each reservoir, rams, one for each cated, a ram moved from the piston to force the oil from the reservoir, and means for moving the piston synchronously with the admission and cut off of steam to an engine cylinder hiding a second piston, a pipe adapted to conduct steam from the engine eylinde at. its inlet port to such piston, and means for returning the second piston to its original position, consisting of a third piston and a pipe adapted to conduct steam from the boiler thereto, the third piston having asmaller cross-sectional area than the second piston.

9. A lubricating device for a locomotive having two cylinders and an air pump, comprlsing three oil feeding devices one for each cylinder and the air pump, and an actuator adapted tocause the operation of the feeding devices operated in one direction by the steam from an engine cylinder or the pump and inthe reverse direction by the steam from the boiler.

10. A lubricating device for a locomotive having two cylinders and an air pump, comprisingthree oil feeding devices one for each cylinder and the air pump, and an actuator adapted to cause the operation of the feeding devices operated in one direction by the steam from an engine cylinder or the pump and in the reverse direction by the steam from the boiler, in combination with means for cutting off the steam from the engine cylinder and turning it on from the air pump.

11. A lubricating device for a locomotive having two cylinders and an air pump, comprising three oil feeding devices one for each cylinder and the air pump, and an actuator adapted to cause the operation of the feeding devices operated in one direc-- tion bythe steam from an engine cylinder or the pump and in the reverse direction by thesteam from the boiler, in combination with means for cutting off the steam from the engine cylinder and turning it on from the air pump and simultaneously and automatically cutting olf the oil feeding devices from the engine cylinders.

12. A lubricating device for av locomotive having two cylinders and an air pump, comprising three oil feeding devices one for each cylinder and the air pump, and an actuator adapted to cause the operation of the feeding devices operated in one direction by the steam from an engine cylinder or the pump and in the reverse direction. by

the steam from the boiler, in combination with means for cutting off the steam fr m the engine :ylinder and turning it on from the air pump, said means including devices for cutting off the oil supply to the engine cylinders.

13. In a device of the character described, a plurality of oil reservoirs, pipes leading pipe adapted to force oil delivered by gravity from a reservoir into and through its pipe and means for operating the rams in unison by steam from the engine cylinders, and moving them to their initial position by steam from the boiler.

1%. The combination with a locomotive of a plurality of oil reservoirs, a pipe from one reservoir to one engine cylinder, a pipe from a second reservoir to the other engine cylinder, rams one for each pipe adapted to force the oil forward from the reservoir along its pipe, and a cylinder and single piston therein for moving all the rams actuated by steam taken from an engine cylin der at the beginning of its stroke and cut off when it is cut oil from the engine cylinder whereby the oil is fed to the engine cylinders only while the steam is being admitted thereto.

15. The combination with. a locomotive of a plurality of oil reservoirs, a pipe from one reservoir to one engine cylinder, a pipe from a secondL reservoir to the other engine cylinder, rams, one for each pipe adapted to force the oil forward from the reservoir along its pipe, and means for moving the rams actuated by steam taken from an engine cylinder at the beginning of its stroke and cut off when it is cut off from the engine cylinder, whereby the oil is fed to the engine cylinders only while the steam is being admitted thereto and means constantly act' ated on by steam from the boiler for re turning the rains to their initial positions as soon as the steam ceases to be'admitted to the engine cylinders.

16. The combination with a locomotive of a plurality of oil reservoirs, a pipe from one reservoir to one engine cylinder, a pipe from a second reservoir to theother engine cylinder, rams, one for each pipe adapted to force the oil forward from the reservoir along its pipe, and means for moving the rams actuated by steam taken from an engine cylinder at the beginning of its stroke and cut 05 when it is cut off from the engine cylinder, and means for returning the rams to their initial position when the steam is again admitted to the cylinder, such means including a piston subject to the constant pressure of the steam in the boiler.

17. The combination with a locomotive of a plurality of oil reservoirs,'a pipe from one reservoir to one engine cylinder, a pipe from a second reservoir to the other engine cylinthereto and means for returning the rams to their initial positions as soon as the steam ceases to be admitted to the engine cylinders, such means including a piston subject to the constant pressure of the steam in the boiler. 18. The combination with a locomotive providedavith an air pump, ot'a plurality of oil reservoirs, pipes from two of the reservoirs to the engine cylinders and from another reservoir to the air pump, rams, one for'each pipe adapted tofforcc the oil from the several reservoirs along their respective Y pipes, all oi. the rams being moved in com-i men by an actuator including a reciprocating piston receiving steam from the inlet end of an engine cylinder so long as the steam is being admitted to such cylinder and cut oft when the steam is cut oil therefrom \vhereby such steam forces the piston'in one direction, and means under constant v steam pressure andopposing the action of the piston tor returnin the iston to its initial position. 7 v

19.The combination with a locomotive provided with an air pump, of a plurality of oil reservoirs, pipes from two of the reservoirs to the engine cylinders and from another reservoir to the air pump, rams, one for eachpipe'adapte'cl' to forcethe oil from the several reservoirs along their respective pipes, all of the rams being moved in comanother reservoir to the air pump, rams,

[one for each pipe adapted to force the oil from the several reservoirs along their re- 7 spective'pipes, all of the rams being moved ill commonby an actuator including a reciprocating piston receiving steam from the inlet end or" an engine cylinder or from the pump, and means for supplying steam from either source. L

2'1. The combination with a locomotive provided With an air pump, of a plurality of oil reservoirs, pipes from two of the reservoirs to the engine cylinders and from another reservoir to the air pump, rams, one for each pipe adapted to force the oil from the several reservoirs along their respective pipes, all of the same being moved in commen by an actuator including a reciprocating piston receiving steam from the inlet end of an engine cylinder or lrom the pump, and means for supplying steam from either boil source, and when supplied from the pump ltotl' from the engine automatically cutting cylinder supply pipes. v

A sight feed lubricato-r for locomotires or the like comprising a plurality of 'feed devices each including a ram and cornmon means for moving all offthe rams in unison including two pistons, one adapted to receivcsteanr intermittently the steam is fed a; the engine cylinders, and the other adapted to" receive steam constantly from the tives or the like comprising'a plurality of devices, each includingja ram and; com- 7' of the in men means'for moving a unison including t m pistons, oneadapted to receive steamintermittently as-the steam is an te th-eengine cylinders; and the other adapted to receive'steam constantly from the r, th-e 1' st pistonbeinfgrof larger cross sectional: area than the second piston;

A lubricating device comprising a casingginclosing an oil reservoir, ap-lurality o? houfings, each containing an oil feeding device 1'11 proXimity thereto and each adapt ed to'r'ece" rams, one for each housing arranged across the casing," levers, onefor each ram. all

mounted a common shaft outside the A sight steed lubricato-r for: locomo- 1 oil tiomthecommon reservoir,

casingand"means forlroclriii g' the shaft to reciprocate the rams.

casing, inclosingan oil reservoir, apl urality or" housings, each containing an oil feeding devicein proximity thereto-and each adapt ed to receive oil from the common reservoir,

a. lubricating*device c -p g rams, one" for each housing arranged across the 'oilreservoir, levers, one for e'ach ram all "mounted one common shaft outside the reservoinand nieans'lor rocking the shaft g to reciprocate theirams including a manually operated Wheel outside of thecasing;

26. A lubricating device comprising a casingfinclosing an oil reservoir, a plurali ofhousings, each containing an oil feeding device in proximity thereto andeach adapted to' receive" oil from the common reservoir, rams, one for each housing arranged across the casing, levers, one for each ram all mounted on a common shaft and means for rocking the shaft to reciprocate the rams including two" pistons, one adapted to receive steam intermittently as'the steani'is fed to the engine cylinders, and the'other adapted to receive steam constantly from theboiler.

911 lubricating device comprising a 1 casing, inclosing'an oil reservoir, a plurality housings, each containing an oil feeding device in proximity thereto and each adapts ed to receiveoi'l from thecommon reservoir, rams, one for each housing arranged across the casing, levers, one for. each ram all mounted one common shaft" and means for rocking the shaft to reciprocate the rams insteam intermittently as the steam is fed to the engine cylinders, and the other adapted to receive steam constantly from the boiler, the first piston being of larger cross sectional area than the second piston.

28. In a locomotive provided with. an air pump and the usual engine cylinders, a plurality of oil feeding devices operated from a common actuator moved in one direction by steam from the boiler intermittently supplied to a piston and in the opposite direction by steam from the boiler constantly supplied to a piston of smaller cross sectional area.

29. In a locomotive provided with an air pump and the usual enginecylinders, a plurality of oil feeding devi'ces'operated from a common actuator moved in one direction by steam from the boiler intermittently supplied to a piston and in the opposite direction by steam from the boiler constantly supplied to a piston of smaller cross sectional area, in combination with two sources of such intermittent supply.

30. In a locomotive provided with an air pump and the usual engine cylinders, a plurality of oil feeding devices operated from a common actuator moved in one direction by steam from the boiler intermittently supplied to a piston and in the opposite direction by steam from the boiler constantly supplied to apiston of smaller cross sectional area, in combination with two sources of such intermittent supply, via, one from an engine'cylinder near its admission port and the other from an air pump.

81. In a locomotive provided with an air pump and the usual engine cylinders, a plurality of oil feeding devices, two supplying oil to the engine cylinders and one to the air pump, all of said feeding devices being operated from a common actuator moved in one direction by steam supplied intermittently, either from an engine cylinder or the air pump, and in the opposite direction by steam supplied constantly from the boiler.

32. In a locomotive provided with an air pump and the usual engine cylinders, a plurality of oil feeding devices, two supplying oil to the engine cylinders and one to the air pump, all of said feeding devicesbeing operated from a common actuator moved in one direction by steam supplied intermittently, either from an engine cylinder. or the air pump, and in the opposite direction by steam supplied constantly from the boiler, in combination with a three-way cock interposed between the actuator and the two sources of intermittent steam supply.

33. In a locomotive provided with an air pump and the usual engine cylinders, a plurality of oil feeding'devices, two supplying oil to the engine cylinders and one to the air pump, all of said feeding devices being operated from a commonlactuator moved in one direction by steam supplied intermittently, either from an engine cylinder or the air pump,and in theopposite direction by steam supplied constantly from the boiler, in combination with a three-way cock interposed between the actuator and the two sources of intermittent steam supply, and a device within the engine cylinders oil feeding devices automatically moved by the three-waycock when the intermittent steam supply, coming from the engine cylinder, is shut 05.

84:, The combination with an oil feeding device comprising an oil channel, a valve adapted to close the channel and steam operated means adapted to actuate the oil feeding means, of a cock for cutting off the steam from such means, and a connection between the same and the channel valve whereby when the movement of the cock is cut ofi the steam automatically closes the valve.

35. The combination with an oil feeding device comprising an oil channel, a valve adapted to close the channel and steam operated means adapted to actuate the oil feeding means, of a cock for cutting off the steam'from such means, and a connection between the same and the channel valve whereby when the movement of the cock is out off the steam automatically closes the valve, such connection including a rock shaft and a link and lever connection between it and the cock handle.

36. In a lubricating device for steam engines lubricant controlling means including two pistons each capable of reciprocating motion and acting against each other, one supplied with steam intermittently and the other constantly.

37. Ina lubricating device for steam engines lubricant controlling means including two pistons each capable of reciprocating motion and acting against each other, one supplied with steam intermittently from two difierent members to be lubricated and the other supplied with steam constantly from one source.

38. In a lubricating device, the combination with a lubricant pump, of means for operating the same, including opposing pistons, means for producing a constant pressure against one piston, and means for producing an intermittent pressure against the other.

39. In a lubricating device, the combination with a lubricant pump, of means for operating the same, including opposing pistons having opposite pressure surfaces of different areas, means for producing a constant pressure against the piston having the surface of smaller area, and means for producmg an lntermlttent pressure against the piston havlng the'surface of larger area.

450; I11 21 lubricator, the combilna'tibn with bfiiler and an engine supplied" therefrom, of a lubricating mechanism for tFm en gi'he including a pum andmeansfor operating the pump one direction by steam sitpp-Hed from the engin and in the opposite cl'i fec tion by steztm supplied ft'omth bailer 41. Ina,- hlbricator, a Lubricant pl'op'ellin'g pump,- means for operating the sa ine com' prising oppositelyacting piston ImeiItS, means for maintaining fi m-id under pressure against VVOHGVOEE the elements; to movei the move the first mentioned piston against the,

action of the fluidz operating thereagainstQ In testimony whereof I affix my signature inpresence" at tW Witnesses.

' ROBERT WOOD.

Witnesses:

MARX H. LEWIS, v ALBA L. MILLER-L;

' Copie' of this p atent may be obtaiuedfor five-cents aeh, by adch 'essin'g the' 'flommi ssion'er ofVP atent-s,

Washington, D. C.

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