US833889A - Locomotive-lubricator. - Google Patents

Description

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J. P. MGGANNA. -LOCOMOTIVE 'LUBRIGATOR. APPLICATION FILED .r UhY 20, 1904' -Un TE-n STATES PATENT OFFICE.

JOHN FFMcCANNA, OF CHICAGO. ILLINOIS, ASSIGNOR TO THE JOHN F. MoCANNA COMPANY, OF TLLINOIS.

CHICAGO, lLLlNOlS, A CORPORATION OF LQCOMOTlVE-LUBRICATOR.

Application filed July 25,1904. swarm. 217.943.

Specification of Letters Patent.

Patented Oct. 23, 1906.

certain and accurate lubrication is of great importance in order to keep up the speed and efficiency of the engine and-prevent undue wear of the parts.

The invention also has reference to certain new and useful improvements in boiler-oompound feeders; and it consists in certain organizations and arrangements of parts Whereby the mechanism which operates the pump or pumps of the lubricating apparatus may be employed for actuating the boilercompound feeder. I

The invention, furthermore, consists of cer' tain combinations of instrumentalities and details of construction, as will be hereinafter fully described and-which are designated in the appended claims.

Referring to the accompanying sheets of drawings, Figure 1 is a side elevation of a locoinotive equipped with my lubricating system and boiler-compound feeder, a portion of the cab being broken away to disclose the arrangement of the parts. Fig. 2 is a'vertical longitudinal section through the lubricantreservoir, showing one of the oil-pumps, the

pump for supplying boiler compound to the boiler, and the mechanism for reciprocating the pump-plungers. Fig. 3 is a horizontal section on the line 3 3 of Fig. 2 looking in the direction of the arrow. Fig. 4 is a front elevation of the lubricating apparatus as arranged for a series of four pumps. Fig. 5 is a top plan of the casing containing the valve for controlling the supply of fluid-pressure for the pump-actuating piston. Fig. 6' is an outer face view ofthe rotary valve, showing the ratchetteeth with whichthe pawls engage to rotate the valve. Fig. 7-is a view of the opposite face of the valve and the arrangement of inlet and exhaust ports.

Fig. 8 is a section on the line 8 8 of Fig. 5.,

, tr'ated.

. As the oil used forlubricating the several illustrating the valve mechanism. Fig. 9 is a section on the line 9 9 of Fig. 8, illustrating the rotary valve and the pawl-carrier and pawls for rotating the valve.

Fig. 10 is a de- I tail end elevation, and Fig. 11 a detail plan view, of thepawl-carrier seen in Fig. 9 12 isa detail of one of the pawls. detail side elevation of the reservoir of the Fig.

boiler-compound feeder, and Fig. 14 is a sectional view through a three-way cock andits gage-glass employed in connection with the reservoir containing the boiler-cleaning compound. p

In illustrating my invention 1- have shown the system applied to the lubrication of the driving steam-cylinder l, theair-pump steamcylinder 2, and the air-pump 30f a locomotive, as shown in Fig. 1, audit is to be understo'od that a connection is also provided for the opposite side of the locomotive for lubri-. eating the cylinder at the other side 'corresponding with the steam-cylinder 1 and also Fig. 13 is a that, if'desired, connections. may be made I for lubricating other parts thanv those illus;

operative parts is of the same character, 1 preferably employ 'a single reservoir 4, which is mounted "in any suitable and convenient position in the'cab of the engine, as by-screw-- ing it to a bracket'5 onthe rear end of the boiler, as shown in Fig. 1. This reservoir has associated therewith a plurality of pumps for forcing oil therefrom to the bearings, connection being made from each of such pumps to one of the bearings. supplied with ubricant from the common reservoir. Each pump, as clearly shown in Figs. 2. and 3, comprises a horizontal barrel 6, extending into the reservoir 4 and the end of which projects through the wall of the reservoir and is heldv in position by a nut 7, screwing upon the projecting threaded end of the barrel 6v and clamping the wall of the reservoir between such nut and a collar 8 on the pump-barrel within the reservoir. A piston or plunger 9 reciprocates ineach barrel 6 and is designed to be operated in the manner hereinafter described. Each pum is provided with an intake 10 and an out et 11. In theconstructiop illustrated the intake: 10 consists of a short tube screwing into a threaded downwardly-extending socket '12, carried by the barrele at its innerend. A chamber is provided the socket 12, in which is located a gravity-valve 13,'n0 rmally resting u on a seat formed by the upper end ofqthe tu e and this valve is prevented from being drawn into the pump-barrel upon the outstroke of the piston; by a web 14, havin'gapertures ..re and the socket 15.

union 17, to a tube -18,the passage of which stance upon the tube 18.

enters a casing 19, formed in the present in.- Seated in the casing 19 is agravity-valve 20, provided with a conical pro ection 21," which normally closes the passage of the tube.18. The casing 19 is provided with a-cover, such as a screw-cap "22. The tube 18 is provided with a lateral branch 23, having a duct opening through the bottom of the casing 19 and leading to a pi e 24, joined to the branch 23 in any suitv ab e manner, as by the nut 25. This pipe 24 leads to a bearing-much, for instance, as the cylinder 1,-as shown in Fig. 1'while pipes 26 and 27, each associated with one of the pumps in the reservoir, conduct I lubricant to the steam-cylinder 2 andair-cylinder 3, respectively, of the air-pump, the fourth pump of the series shown being designed to 'su ply oil to the cylinder on the other side of the locomotive.

Mounted in any suitable position,wand preferably in the cab of the engine, as shown in Fig. 1, is a cylinder 28, which in the present instance is horizontally disposed'and secured to the wall of the cylinder 4 opposite that through which thepistons 9 pass, as shown'in Figs. 2 and 3. This cylinder 28 is provided with a reciprocating piston 29 and has near its opposite ends ports 30 and 31, the range of movement of the piston being between such ports, but not su'llicient to close the same. Fixed to the piston 29 are rods 32, which pass through the'end of the cylinder 28 opposite the reservoir 4,' suitable packingboxes 33 being provided at the apertures through which they pass, These rods 32 are fixed, as by means of nuts 34, to a cross-head 35; Fixed to the outer ends of the cross head 35 in the same manner as the rods 32 are rods 36, which extend parallel with the rods 32 and pass through walled passages 37, extending through the reservoir 4, as clearly shown in Fig. 3. Guides, such as the lugs 38, extending from the cylinder and having apertures in which the rods 36 reciprocate, may also be provided, if desired. The front ends .to operate a boiLer-compoimd feeder.

of the rods 36 are fixed to a cross-head 39 parallel with the cross-head 35, and to the 1 latter the pistons 9 are connected. In the construction illustrated the cross-helad 39 is provided with apertures corresponding to the positions orthe plungers 9, and the outer ends of such plungers pass through such a e'rtures andare provided with suitable ahutments against which the cross-head 39 reacts to reciprocate the plungers. In the present instance these abutments take the form of shoulders 40, formed on the plungcrs on one side ofthe cross-head 39, and nuts 41 screwed upon the threaded ends of the ilungers and held against rotation by locknuts 42. g

The piston 29 by its reciprocation, as hereinafter explained, serves to operate the pumpphingers 9 to supply the lubricant to the bearings, and I may also employ this plunger To this end there is located in any convenient position, as in the cab of the engine and near the reservoir 4, a second reservoir 43, designed to contain a suitable boiler-cleaning compound. This reservoir 43 is provided with a removable cap 44 for convenience in filling the tank. This reservoir is preferably provided with a gage-glass 45, leading from the top of said'reservoir and connected thereto at its lower end by a three-way cook 46, Figs. 13 and 14. A supplypipe 47 leads from the valve to the inlet 43 of a pump designed to discharge the compound into the boiler. The barrel 49 of the boiler-com pound-feeding pump is disposed horizontally, as shown in Figs. 2 and 3, and reciprocating therein is a plunger 50, adjustably attached to the cross-head 35. The cross-head is provided with a central aperture through which asses the end of the ilun cr which is )I() -vided with an abutment taking the form of a shoulder 51 on the plunger, and an adjustable abutment, such as the nut 52, screwed to the outer; end of the plunger and held against movement by a jam-nut, as shown. The intake 48 in the present instance consists of a nipple in threaded engagement with a socket '53, extending downwardly from and in communication with the inner end of the pumpbarrel 49. The socket 533 provides a chamher for a gravity-valve 54, which is normally seated upon the upper end of the nipple 43 and is prevented from ei'itering the chamber of the pump-barrel by a web 55, having apertures leading from the valve-chamber to the pump-barrel, as shown in Fig. 2. The pumpbarrel 49 is provided with a corresponding socket 56, extending above the same and designed to provide a chamber for a gravityvalve 57, which normally ineloses a reduced passage leading from the barrel 49 into the said socket. The valve 57 is held in the socket by the lower end of a nipple 53, which is exteriorly threaded to engage an internal thread on the said socket. Connected to the nipple 58 1s a pipe or conduit 59, which exg The piston 29 is designed to be reciprocated by fluid-pressure, and the supply of pressure for this purpose may bedrawn from any suit able source. In the present instance I provide a connection with. the air-storage cylinder from which pressure is drawn for operat- 'ing the air-brakes, and in order to regulate and control the movement of the piston 29 a valve is provided and so controlled by a mov able part of the operating mechanism of the locomotive as to periodically supply air to.

the cylinder 28 to reverse the movement of the piston 29 and reciprocate thepump-pluIi ge'rs. This valve mechanism, shown in the a portion 62 and a cap 63, which is'secured to present embodiment of the invention and now to be. described,.is illustrated in Figs. 5

to 12, inclusive.

Mounted in any suitable position, as upon .the framework of the locomotive adjacent the cylinder 1, Fig. 1, is 'a valve-casing 61.

This casing is shown as substantially circular in cross-section and as composed of a body the body portion by any suitable means such as the cap-screw 64, as shown in Figs. 8 and 9.

Extending concentrically with the casing 61' and passing through'an opening in-the cap is a shaft 65, =pr'ovidedon its endinside the casing with a pawl-carrier 66,. comprising in the present-instance a pair of lateral arms 67.

/ Theends of arms 67 are provided with sockets or cups 68, disposed parallel with the shaft 65 and lfavingtheir open ends facing the rear end of the body portion of the casing.

Seated in the cups or sockets 68 are sliding pawls '69, which are thrust outwardly by meansof coil expansion-springs 70, reacting between the bottom of the cups and the inner face of the pawls, the latter being preferably provided with pockets to receive the springs, as shown in Fig. 9.' Disposed concentrically with and located in the casing 61 is a valve 71. (Shown in detail in Figs. 6'and' 7.) The valve 71. is in the form of a disk and is seated in the casing between the pawls 69 and the rear wall or endof the body 62 of the casing. Onits face adjacent the pawls 69 the valve is provided with .a concentric row of ratchetteeth 72, so positioned as to be engaged by the pawls 69, each of the latter being provided with a pin or stud 73', engaging an elonv gated slot 74 in its associated cup, Fig. 1 1, thereby permitting the pawl to slide longitudinally, but holding the same against turning in the cup. This valve 71 is of such size as to rotate freely in the casing and is supported in position by the rear wall 'of the casing and the inner end 75 of the shaft, which enters a recess formed-in the adjacent face of the valve, the shaft thereby forming a journal or bearing for the valve.

' the pawls 67 and as shown in Fig..11.

The valve 71 is held against backward movement by a dog or, as shown in the pies ent instance, a pair of dogs 76, which engage the teeth 72 of the valve.' be supported in any suitable manner The are shown in the present embodiment of the These dogisjmayf invention, as illustrated in Fig-8, as slidingly mounted in cups or sockets v77 upon the inner face of the cap, and are held in their engaged position with the ratchet-teeth 72 of the valve by'coil expansion-springs 78, reactin between the'bottom of the cups 77 and the adjacent face of the dogs, the latterbeing also provided with recesses in which the springs are seated. The dcgs76 are also held against turning in the same manner as j The valve 71 is provided with a port 79, passing therethrough and opening from the chamber in the casing between the valve and the cap 63, and this port preferably communicates witha curved'channel 80, formed on the face ing on the same radius with the axis of the valve as a center as the port 79. The face of the valve 71, in which the channel SO-is formed, is also provided with a central recess 81, which connects by a lateral passage 82- With a channel 83, concentric with the valve of the valve adjacent the end wall of the body portion of the casing, sch chanhel beand on the same radius as the channel 80, r

such channels being, as shown in Fig.- 7, diametrically opposite each other. Passing through the end wall of the casing are two ports 84 85, which communicate with conduits or tubes 86 87, respectively, as by means of connections 88, as shown in Fig.9. The conduit 87 leads to the port 31, while the conduit 86 leads to the port- 30 of the cylinder 28,

as shown in Figs. 1 and 2, preferably passing under the sheathing of the boiler of the locomotive, so that these conduits will be kept heated and prevent cangealingof the oil in cold weather. The inner ends of the ports 84 are so positioned as to register with the channels 80 and 83 when the valve is rotated in the manner hereinafter described. EX- tending through the wall of the valve-casing is a dnct89, which is centrally disposed and registers at all times with the central cavity 81 in the valve. An exhaust-pipe 90 is in communication with the port 89, as by means of aconn'ection 91, and may be ex" tended to any convenient point to discharge. the air from the cylinder 28.

Leading from the reservoir 92, in which the air for controlling the air-brakes is stored, is a conduit or tube 93, which enters the valvecasing 61 through the side thereof, shown in Fig. 8, the end of the tube 93 being connected to a nipple 94, screwing .into the said casing, by means of a nut 95. The connection 93 maybe provided with a valve 96 for controlling the supply of air to the valve loo tory movement, it may be connected. as

16. shown in the present instance, to the valverod 98 'of the locomotive by a link 99, jointed to the said arm and valve-rod.

In operation and when the engine is running, owing to the reciprocation of the rod 98,

I5 anoscillatory movementis imparted to the arm 97,- and consequently the pawl-carrier 66. As the pawls are moved back and forth they give to thevalve an intermittent rotary motion, backward movement of the valve being prevented by the dogs 76. i/Vhen the end of the channel 80 remote from the port 79 registerswith the port 85, leading to conduit 87, the air under pressure passes through .the port 85 into the pipe 87 and thenceby way of the port 31 into the cylinder 28, thereby moving the piston 29 in one direction. The supply of air is continued until the port 79 by reason of the rotation of the valve passes out of register with the" port 0 85, leading to the conduit 87. At the same time that the channel 80 passes into register with the port 85 the port 84 connecting with the conduit 86 comes into alinement with the channel .83, thereby permitting the air upon 3 5 the side of the piston 29 adjacent the port 30 to pass pack through the pipe-conduit 86 into the channel 83 and by way of thelateral passage 82 out to the exhaust-pipe 90. By providing the elongated channels 80 and 83 the connection between the inlet and exhaust ports; remains established for'a sufficient length of time to insure the proper sup ply of air to and exhaust from the cylinder 28 1o produce a full stroke of the piston 29. As the rotation of the valve is continued, bringing the port 79 into cooperation with the port 84 and the exhaust-channel into registerlwith port 85, the action is reversed, air then' entering the port 30 and exhaustin 5 from the port 31, and the reversal is effects ateach half-revolution of the valve.

The movement of the piston 29 by reason of the connecting- rods 32 and 36 and crossboiler-compound feeder is accomplished at the same time as the outstroke of the lubricating-pumps Upon the outstroke of the plurwer boiler compound is sucked into the arrel 49 past the gravity-valve 54. Upon the instroke of this plunger the valve 54 is forced to its seat, the valve 57 lifted, and the compound forced through the pipe 59 to the sprayer 60.

By making the abutment 41 of each of the pumps adjustable the stroke of the piston, and consequently the quantity of oil supplied to any particular bearing, may be varied at will. This variation is accomplished by adjusting the nut 41 upon the threaded end of the pump-plunger to provide or eliminate. as the case may be, lost motion between the crosshead and the abutments 40 and 41 of the pump-plungers, it being apparent that the greater the lost play the shorter the stroke of the plunger will be. If desired, any pump may be thrown out of action at will by moving the nut ll far enough away from the abutment 40 so that the cross-head will merely reciprocate between these abutments without reacting against the same to move the plunger.

in order to determine when the proper adjustment of the pump has been attained, each tube 18 has a branch tube 100, the duct or passage of which is closed by a screwvalve 101. This branch tube is provided with a downwardly-extending outlet 10?, located over an aperture 108 in the top of the reservoir, and in order to insure the oil passing out of the outlet 102 flowing back into the tank by way of the aperture 103 a glass tube 104, surrounding the said. outlet and aperturc, is provided. This arrangement pro- .vides a sight-fecd, and when it is desired to determine the rate of feed of a pump, as when an adjustment has been made in the stroke ofthc piston. valve 101 is o )encd, thus permitting the oil to flow out t irough the branch tube 100 and drip through the tube 104 back into the reservoir, the gravity-valve 20 being of suiiicient weight to prevent the oil finding its way past the same when the valve 101 is open.

The stroke of the plunger of the compound feeder may be varied to regulate the amount of the discharge by adjusting the nut 52 in the same manner as the nuts 41 are adjusted, and the rate of discharge of the compound feeding-pump may be readily ascertained by turning the three-way cook 46 to a position one hundred-and eighty degrees from that shown in Fig. 14, where it will be seen that the boiler-cleaning compound will be drawn slowly through the gage-glass 45, the small diameter of which permits the ready ascertaining of the amount of the feed by merely watching it.

By means of the mechanism hereinbefore described the engineer in the cab is enabled to determine by opening the valves 101 the rate at which each pump is delivering oil to the particular bearing associated with such load is heavy, as'upon an upgrade, or to di-v minish the lubrication when theload is light,

as on a downgrade, and by means'of the con .nection with the slide-rod associated with the driving-cylinder the amount of lubrication is increased automatically when the slide ,is given a longstroke and likewise diminished proportionately when the length of the stroke is decreased for lesser loads.

, The pipes or conduits leadin to theparts being lubricated being inelosed by the jacket of the boiler, so as to be heated at all times,

the oil is prevented from becoming congealed in very cold weather.

Each oil-feed pipe may be provided, adj acent the part being lubricated thereby, .with' a valve 105 whioh may take the form of, the gravity vacuum-valve shown and described in an application filed by me November 5, 1901, Serial No,. 81,424, and designed to prevent the oil in the pipes from flowing down by hydrostaticpressure and wasting the o il when theen ine is at rest,- as well as to prevent the 'suc g of the oil into the cylinder when the-steamis shut off, or any other preferredcharacter of valve may be employed forjthis purpose;

Various'modifications maybe made in the invention,-"andI do not, therefore, restrict myself to the particular embodiment illus-' trated.

I Having described myfinvention, what I claimis'' 1. In a lubricatonthe combination with a reservoir, of a pump su plied from the reservoir, reciprocating fiui -pres sure mechanism for operating the pump, and a rotary valve actuatedby the movement'of the apparatus being lubricated for controlling the admission of fluid to the said mechanism to reciprocate the same in both directions.

' 2;v Ina lubricator, the combination with a reservoir, of 'a pump su plied from the reservoir, reciprocating fiui -pressure mechanism for operating'the pump, a valve for controlling admission of fluid to the saidjneans to reeiprocate the samein both directions, and a connection with apparatus beinglubricated for imparting intermittent rotary movement to, the valve.

' 3 he lubricator, the combination witha' reservoir, of a. pump supplied from the resere voir, fluid-pressure mechanism'for operating cillating the pawl-carrier.

the pump andfconsisting of acylinderand a piston therein connected, to the pump-plunger, a source of fluid under pressure, a rotary' valve for controlling admission of fluid tothe opposite sides of the and means for rotatin'g the valve intermittently. 7

4. In a lubricator, the combination with a reservoir, of a pump supplied from the reservoir, fluid-pressure mechanism for operating the pump and consisting of a cylinder and a piston therein connected. to the pump-plunger, a source of fluid under pressure, a rotary valve for controlling the admission of fluid. to

iston in alternation,

the opposite sides of the iston in alternation,

and an oscillating mem er for im arting intermittent rotary motionto the va ve.

'5. In a lubricator, the combination wit-ha reservoir, of apump supplied from the reservoir, fluid-pressure mechanism for operating the pump, a source of fluid under ressure, a rotary valve for controlling admission of fluid to the said mechanism and provided with ratchet-teeth, and an oscillating pawl-carrier provided with pawls engaging the teeth of the valve to rotate the same intermittently. 6. Ina lubricator, the combination with a reservoir, of a pump supplied from the reservoir, fluid-pressure mechanism foroperating the pump, -a source of fluid under pressure, a rotary valve for controlling admission of fluid to the said mechanism and-provided with ratchet-teeth, a pawl-carrier provided with spring-pressed awls engaging the ratchetteeth to rotate t e valve intermittently.

7. In a lubricator, the combination with a' reservoir, of a pump supplied from the reservoir, fluid-pressure mechanism for o erating.

the pump, a source of fluid-supplyun er pressure, a valve-casing having an inlet from the said source and a pair of outlets to the said mechanism, a rotary valve in the casin and having a port alternately registering wit the. outlets, an oscillating. pawl-carrier provided with a pawl for rotating the valve, and a con nection with. a moving part of the apparatus being lubricated for oscillating the pawl-carrier.

8. Ina lubricator, the combination with areservoir, of a pump supplied'from the reservoir, fluid-pressure mechanism for operating the pump, a source of fluid-supply under pressure, a valve-casing, a connection leading from the source'of fluid-supply to the'casing,

a pair of conduits leading om the casing to"; the said mechanism, a rotary-valvelocated in the casing and having'a ort adapted to reg-. ister with the said eondults in alternation, an oscillating pawl-carrier provided with pawls engagin, the valve, ,and a connection for os- 9. In a lubricator, the. combination with a reservoir, of a pump supplied from the reservoir, fluid-pressure meohanismfor operating the pump, a source of fluid-supplyunder pres sure, a connection between the said source c holding the valve and the casing, a valve-casing having a pair of sup 1y-ports and an exh.austport in one of its walls, a rotary valve in the casing provided with ratchet-teeth and having a port adapted to register with either of the supplyports and a channel leading to the exhaustport, conduits leading from the supply-ports to the said mechanism, an oscillating pawlcarrier 'in the casing and having s aringpressed pawls engaging the ratchet-teeth oi the valve, a connection with a moving part of i the apparatus being lubricated for oscillating the pawl-carrier, and airing-pressed (logs for against backward movement. I

10. In a lubricator, the combination with a reservoir, of a plurality of pumps supplied from the reservoir and having connections leading to the parts to be lubricated, a cylinder, a piston in the cylinder for reciprocating the pump-plungers, a source of fluid-supply, a valve-casing, conduits between the casing and the opposite sides of the piston, a connection between the source of fluid-supply and the casing, a valve in the casing for controlling the supply of fluid to and exhaust from the cylinder and automatically-actuated means for imparting intermittent rotary movement to the valve.

11. In a lubricator, the combination with a reservoir, of a plurality of pumps supplied ate the pawl-and-ratchet mechanism.

12 In a lubricator, the combination with a reservoir, of a plurality of pumps supplied from the reservoir and having connections for supplying lubricant to the parts to be lubricated, a cylinder, a reciprocating pistontherefor, a connection between the piston and the pumpplungers, a Valve-casing, conduits between the casing and the cylinder, a connection between the source of fluid-supply and the casing, a rotary valve in the casing for controlling the supply of fluid to and exhaust from the cylinder through the conduit, and an oscillating carrier provided with pawls to rotate the valve.

13. In a lubricator, the combination with a reservoir, of a plurality of pumps supplied from the reservoir and each of which has a plunger, a cylinder, a reciprocating piston therefor, aconnection between the piston and the pump-plungers, a source of fluid-supply, a

valve-casing having a pair of ports, conduits between such ports to the cyhnder at opposite ,sides of the piston, a source of fluid-supply, a

connection between the source of fluid-supp] y and the casing, a rotating valve having an outlet-port and an exhaust-channel alternately connnu-nicating with the said conduits, the valve having ratchet-teeth, an oscillating carrier, pawls on the carrier and en gaging the ratchet-teeth, and a dog engaging the valve to hold the same against backward movement.

1'4. In a lubricator, the combination with a reservoir, of a plurality of pumps supplied from the reservoir and each of which has a plunger, a cylinder, a reciprocating piston therefor, an operative connection between the piston and the pumpplnngers-, a v alve-casing having a pair of ports, conduits between such ports and the cylinder at opposite sides of the piston, a source of fluid-supply, a connection between the said source and the casm a rotating valve having an outlet-port and an exhaust-channel alternately communieating with the said conduits, the valve having ratchet-teeth, an oscillating "warrior provided with cups, a spring-pressed pawl in each cup and engaging the ratchet-teeth, cups on the casing, and spring-pressed dogs in the latter cups engaging the ratchet-teeth to hold the valve against backward movement.

15. In a lubricator, the combination with a reservoir, a pump, and a connection leading from the pump to the part to he lubricated, of a cylinder having arcciprocat ing piston for operating the pump, a valve-casing. conduits between the casing and cylinder at opposite sides ol the piston, a rotary valve in the casing and having a port for opening communication between the using and the conduits in alternation, means For exhausting the cylinder, an oscillating membcractuated by the mechanism being luhr' rated, pawl-and-rachet connection between the said member and the alve.

16. In a lubricator, in combination with a reservoir, a plurality o'l pumps in the reservoir, and each of which is provided wi'lh a plunger, a cylinder, a reciprocating piston therefor, a cross-head to which the pumpplungers are connected, a connection between the piston and the cross-head, a valvecasing, onduits between the casing and the cylinde at opposite sides oi the piston, a set. no of fluid-supply, a connection between I the said source and the casing, a valve in the casing having supply and exhaust ports alternately communicating with the said conduits, asha'lt journaled in the using and having a pawl-carrier, there being ratchcl-teeth on the valve engaged by the pawl of the carrier, a connection for oscillating the pawl-carrier, and dogs carried by the casing for holding the valve against backward movement.

17. In a lubricator, in combination with a reservoir, a plurality of pumps in the reservoir and each of which is provided with a plunger,-

, a cylinder, a reciprocating piston therefor,

a cross-head to which the pump-plungers are connected, a connection between the pisti'm and the cross-head, acyhndrical valve-cas ng having in its end a central port and a air "of ports at opposite sides? of the contra port,

conduits between the said pair of ports and the cylinder at opposite sides of the iston, a.

source of fiuid-su-pcply, a connection etween the said source an the casing, arotary diskshaped valve having a passage therethrough' andratchet mechanism for rotating the valve.

18. In a lubricator, in combination with areservoir, a plurality of pumps in the reservoir having plu-ngers, a cylinder, a reciprocat ing piston therefor, a cross-head to which the pump-plungers are connected, a connectidn between the piston and the cross-head, a cylindrical valve-ca sing having in its end a cen tral port and a pair of ports at opposite sides of the central port, conduits between the said pair of ports and the cylinder at opposite sides of the piston, a source of fluid-supply, connectionbetween the said source and the casing, a rotary disk-shaped valve having a "passage therethrough adapted to register with the said pair. of ports in alternation and provided with a channel for connecting one of said. ports with the exhaust-port when the other of said sports is in register with the valve-passagc a shaft extending into the casing and on which the valve is journaled,.

pawls carriedby the-shaft and engaging the valve, dogscarried by the; casing for holding" the valve against backward movement, and

' a connection with a moving part of the apparatus being lubricated for oscillatingv the shaft.

19. In a lubricator, in combination with a'.

reservoir, a plurality of pumps connected with the reservoir and each of which is provided with a plunger,.a cylinder, a reciproeating pistpn therefor, an operative connection between the piston and the pump-plungers, a valve-casing, a valve located in the casing and for controlling the supply and exhaust of the cylinder, the said valve being disk-shaped and having a recess in one of its 'faces, 'a shaft extending into the ca'sing'and seated at its end in the recess, the said valve [having an annular row of ratchet-teeth, a

pawl carrier on\ the shaft and consisting of lateral arms having cups opening toward the valvc, pawls seated in the cups, springs in the cups for pressing the pawls into engagement 1 with the ratchet-teeth, cups on the casing, spring-pressed dogs in the cups engaging the ratchet-teeth to hold the valve against backward movement, and a connection for oscillating the shaft.

20. In a locomotive-lubric ating apparatus, the combination with an oil-reservoir, of a pump connected therew1th,-a fluid-pressure .cylinder,- areciproceting piston in the cylinder and operatively connected with the pump,'pipes connected with the cylinder at opposite sides of .the'piston,e fluid-pressuresupply pipe, a rotary valveiconnected witli the three pipes to putthe supply-pipe in 0mm munication with the cylinder-pipesin alternation, and "means controlled by the move-- ment- 9f the apparatus to be lubricated for rotati the -valve. 4 e

pump connected therewith, a fluid-pressure cylinder, a reciprocating piston in the cylinder and operatively connected with the pump, pipes connected witn the cylinder at opposite sides of the piston, a fluid-pressure-supply pipe, arotary valve connected with thethree pipes to put the supply-pipe in communication with the cylinder-pipes in alternation the valve, and a connection between the arm and the apparatus being lubricated forrock n a locomotive-lubricating apparatus, {the combinat on with an oil-reservoir, of a ICO 23. In combination, a lubricant-reservoir,

a plurality of pumps located therein and each. of which is, provided with a reciprocating plunger, a cross-head to which the plungers are connected, a second reservoir, a'pump I supplied by the latter reservoir and having a reciprocating plunger, a cross-head connected to the latter plunger and to the other crosshead, a cylinder, a fluid-pressure-operated piston reciprocating in the cylinder, a connection between the piston and'one of the cross-heads, and an automatic rotary valve for controlling the admission and exhaust of fluid-pressure for operating the piston.

24. Incombination, a lubricant-reservoir, a'plurality of pumps located in the reservoir and each of which is provided with a reciproeating plunger, 2. cross-head to'which the plungers are connected, a second reservoir, apump supplied from the latter reservoir and having. a reciprocatin plunger, a cross-head to which the latter p unger is connected, a

, and having an exhaust-passage, an arm, pawland-ratchet mechanism between thearm and t cylinder, a fiuid-pressure-operated piston re- I parting intermittent rotary motion to the Q ciprocating in the cylinder, 1 connection bevalve. tween the piston and the latter cross-heed, In testimony whereof I affix my signature rods connecting the cross-heads, means for 1n presence of two-witnesses.

Varying the stroke of each plunger independ- T ently of the others, a alve for controlling JOHN MCCAL the edrnissi'on of fluid-pressure for operating Witnesses:

the piston, and a connection with a moving I ARTHUR B. SEIBOLD,

part of the apparatus being lubricated for im-il ELIZABETH MQLITER.

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