US1310531A - Planoghaph co - Google Patents

Description

D. JONES. LUBRICATING DEVICE FOR LOCOMOTIVE ROD PN CONNECTIONS.

APPLICATION FILED JAN. 12. 191B.

1 ,3 0,53 1 Patented July 22, 1919.

3 SHEETSSHEET I.

0. JONES. LUBRICATING DEVICE FOR LOCOMOTIVE ROD PIN CONNECTION; APPLICATION FILED JAN. 12. I918.

' '1 ,3 1 O, 53. Patented July 22, l9I9.

3 SHEETS-SHEET 2- Quinn;

'lllE COLUMBIA PLANOGRAFII co.. WASHINGTON, D. c.

D. JONES. LUBRICATING DEVICE FOR-LOCOMOTIVE ROD PIN CONNECTIONS.

APPLICATION FILED lAN.lZ.19I8

Patented July 22, 1919.

3 SHEETSSHEET 3.

A w 0 0 0 M I Tm: COLUMBIA PLANOGRAPH 50., WASHINGTON, D. c-

iinrrnn srarns PATENT orrien DEYO J' ONES, 0F DETROIT, MICHIGAN.

To all whom it may concern Be it known that I, DEYO J ONES, a citizen of the United States, residing in Detroit, county of lVayne, and State of Michigan, have invented a new and useful Improvement in Lubricating Devices for Locomotive-Rod-Pin Connections, and which is an improvement over the device now in use.

This invention relates to lubricating devices for locomotive rod pin connections, and an object thereof is to provide an automatic device for feeding grease to the crank pin connection of locomotive drive wheels, and a further object is to provide a selffeeding lubricating device actuated by movement of the locomotive rod to continuously feed grease to the rod pin connection during operation thereof. A further object is to provide a self-lubricating device of the char acter stated in which the rate of feed may be increased or diminished as occasion may require, and an additional ob ect is to provide a rease cup having a plunger adapted to be automatically screwed into the cup to feed grease by operation of a sliding block actuated by the throw of the rod to which the device is attached. A further object is to provide means in a construction of the character stated whereby, when the plunger has been turned practically to its limit downward in thecup, actuation thereof by the sliding block automatically ceases. These objects and the several novel features of the invention are hereinafter more fully described and claimed and shown in the preferred form inthe acconrpanying drawings in i which- Figure l is a vertical section of my improved device taken on line AA of Fig. 2.

Fig. 2.is a horizontal section taken on line B--B of Fig. 1.

Fig. 3 is a section taken on line CC of Fig. 1.

Fig. 4c is a similar section showing a different IGlfiLlOD ship of parts.

Fig. 5 is a detail of part of the feed control device.

Fig. 6 is a diagram showing the means for automatically releasing the feeding device.

Fig. :7 is a diagrammatic view illustrating the grease cup in position on the locomotive rou.

The usual grease cup heretofore employedon locomotive rods forv lubrication of the crank pin requires turning thereof by hand .to feed grease to thebearing point and it LUBBICATING DEVICE FOR LOCOM'OTIVE-ROD-PIN CONNECTIONS.

Specification of Letters Patent. Patented July 22 1919.

Application filed January 12, 1918.- i I Serial No. 211,514.

frequently happens that, especially on long runs, the crank pin bearing becomes overheated. This invention seeks to provide mechanism to continuously feed grease to a predetermined extent to the bearing during operation of the device, the rate of feed varying directly in accord with the. rate of speed of travel of the locomotive. As shown in Fig.7, the grease cup l is provided on the upper side of the locomotive rod 2 and a channel 3 is provided leading to the aperture t in the blocks for the crank pin of the driving wheel. As-will be understoodmore clearly from Fig. .1,.,the greasecup 1. is

threaded plunger 5..., It .-is to be noted that the rod 2 is provided with a recess 6 slightly greater in diameter with the diameter of the cup and of a depth at. least equal to the thickness of the-threaded portion of the plunger wherebythe said plunger may be fully withdrawn fromthe cup into the said recess 6 and this recess may be provided by the addition of an apertured plate 7 on theupper surface of the rod 2, or may be provided by counter-boring the rod itself. The plunger 5 has a square stem 8 extending upwardly therefromandon this plate 7 or directly on the upper face. of the locomotive rod is positioned a case 9 preferablyhinged at 10 on one side to the block 7 or to the rod 2 as the construction may be. This case is preferably formed of a body member having a base 11 a slight distance above which is provided a shoulder 12 to receive a plate 13 which provides a shallow chamber 14: between the plate 13 and base 11. Bosses 15 are provided between this base 11 and plate 13 at each corner, as will be understood from the drawings, threaded to receive the threaded end of the binding rod 16 which rod passes through the upper cover member 17 fitting in the-upper end of the case and through the member 13 whereby both of the covers are retained in positioning. The rod 16 is provided With a shoulder at the bottom engaging against the. cover 13 and the head of the bolt engages against the cover 17. In the chamber 14 at the bottom of the case is provided a feed gear 18 having a squared actuated through operation ofa ratchet I provided with athreadedwall to receive the wheel shown in Fig. 2 and in bottom view in Fig. 5 from which it may be observedthatthe ratchet wheel is provided on the lower side with a single tooth 21' of a character to engage between the teeth of the feed wheel 18. This-single tooth 21 moves the feed wheel one tooth each complete revolution of the ratchet wheel to whiclrit is secured and of which it forms a part and the said wheel 18 is therefore moved slowly even witha com-- paratively rapid rotation of the ratchet wheel. The ratchet wheel'as will be understood from Figs. 1 and is operated by means ofi a spring-controlled pawl 22 pivotally mounted on alever 23 which lever is'pivoted" tothe shaft'of the ratchetwheelmounted in the partition wall13 and base'll block 25-between the=cap plates 17' and. the

plate=13i- This block and the case is'to be understood as being positioned on the lo'co; motive rod in-sueh' position that the rotation of the rodthrows-the Weight backward and forward in'the' case and, to prevent the striking of 'theblock against the sides of the case, buffers 26' and 27 are provided at opposite sides of the case'against which the-block engages. I These may be of rubber or of any approved form to prevent the block from striking forcibly any unyielding part. For

this latter purpose also'the blockshould be cut out at each corner asindicated at 66 in Figs. 3- and {L to prevent the block from striking the binding r0ds'16 at the corners of the case. The block is provided with a central aperture or'slot 31 through which the plunger stem 8 projects-allowing the block to move freely to its fullest extent. It will be seen that, as the locomotive rod is reciprocated the block will automatically be drawn forward and backward in the case and this movement of the block, due to the fact that the end 2 1 of the lever lies in a recess in the block turns the lever 23 on its axis on the shaft of theratchet wheel 20. This causes the pawl to turn the ratchet wheel during' movement of the lever to the left of Fig. 2, and each complete forward and backward block has a certain predetermined extent of movement and the feed of the plun'ger'fiis therefore at a predeterminedrate relative to the revolution of the" drive-wheels of the locomotive. If it be desired to increase the rateof feed, however, the buffer 27 may be moved to position shown in dotted lines in Fig. L by loosening the'threaded nut 3st and repositioning the buifer as shown by dotted lines. In this position shown by dotted lines the buffer is opposite a notch 35 formed in 'one'side of the block 25 allowing a greater rate of movement of the crank pin; Thatis-if the'locomotive is operated at a high rate of speed, the grease is fed to agreater extent per unit'of time than if it is'operated at a slow rate of speed and the rapidity of feed per unit of time varies in accordance with the' variation in speed although the rate of feed for each complete movement of the locomotive rod is constant.

To prevent the feed wheel continuing to be turned when the plunger has reache lowermost point of travel in the grease cup, I' provide an automatic device for disengaging th ratchet from the feed wheel. This is shown somewhat in diagrammatic form in Fig. 6' and' includes a vertical plunger 40 which has an angularly shaped lower end 41 terminating in the chamber 13. This end 41 lies in contact with the end of the pawl 22 shown clearly in Fig. 2 and, as is indicated at 22 in Fig. 6. The plunger is vertically movable in an aperture in the plate 13 and 7 above this aperture the rod 40 is provided with a flexible spring member 42 tending to hold the plunger l0 in its uppermost posi tion indicated by dotted lines in Fig. 6. The plunger is provided with a cap member 43 that is in the path of movement of a washer or flange 4c4c'provided on the stem 8. This flange 44: is circular so that irrespective of the turning of the gear and stem the flange is at all times in position to engage the part 4-3'of the plunger 40 and depress the same as the plunger travels downward near the finish of its stroke. This carries the plunger 40 downward with it against the tension of the spring 41-2 and releases the pawl 22 whereupon continued operation of the block in the case does not result in actuation of the plunger. The stem 40 projects up through the block which is provided with a slot 45 for this purpose and the block is so formed as to allow freedom of movement of the spring 42 in expanding and contracting. This spring member may be of any type desired adapted for the purpose.

a position'where'the'threads therof are out its of engagement with the threaded wall of the grease cup whereupon the latch 50, provided on the side of the device opposite the hinge 10, may be released and the entire case and plunger turned outward on the hinge as is indicated in dotted lines in Fig. 7 exposing the cup and permitting its filling. Thereupon the case may be returned to position and the latch 50 secured and the plunger started in the threads in the cup or grease receptacle whereupon the device is ready for automatic operation.

From the foregoing description, it is evident that the device is comparatively simple in form and is entirely automatic in operation, which operation is in conformity with and corresponding to the speed of operation of the locomotive rod, and further, that the rate of the grease by reciprocation of the crank pin may be varied by alteration of the position of the buffers and varying the throw of the block.

Having thus briefly described 'my invention, what I claim isl. A lubricating device for locomotive rod pin connections comprising the combination with the rod and crank pin, of a cup for grease having a conduit opening to the bearing, a plunger provided with a stem adapted to force the grease through the conduit, a casing above the grease cup through which the stem of the plunger extends, the casing having an upper and a lower chamber, a block in the said casing adapted to slide back and forth therein by motion of the rod,

andapawl and ratchet device in the lower casing, a lever for operating the same, said lever having an end extending through the upper wall of the chamber into the block, a single toothed gear rotated by the ratchet, a gear operated thereby, the gear being apertured to receive the plunger and adapted to rotate the same while allowing the plunger to move longitudinally therethrough.

2. A lubricating device for locomotive rod pin connections comprising the combination with the rod and crank pin, of a cup for grease having a conduit at the bottom opening to the bearing, the cup being counterbored providing an upper end of a greater diameter than the body, and the body therebelow being threaded, a threaded plunger for engagement therewith, a casing forming a cover for the cup and hinged to the rod permitting the casing, when the plunger has been drawn from threaded relation and positioned within the said counter-bore, to be turned to open the cup, a block slidable in the casing by movement of the rod, means for varying the extent of movement of the block in the casing, a ratchet and gear device by rotation of which the said plunger is turned in the cup, said mechanism having a part connected with the block whereby movement of the same actuates the ratchet and gear, and means for releasing the ratchet from operation by the block.

3. A lubricating device for locomotive rod pin connections comprising the combination with the rod and pin therefor, of a grease cup carried by the rod, a plunger having threaded relation with the cup, a casing p0- sitioned over the cup and through which the stem of the plunger extends, a block free to slide in the casing by movement of the rod, a pawl and ratchet mechanism carried in the casing actuated by movement of the block, means forreleasing the pawl from the ratchet, and means on the plunger engaging said pawl releasing means as the plunger approaches its lowermost position in the cup.

4. A lubricating device for locomotive rod pin connections comprising the combination with the rod and pin therefor, of a grease cup formed in the rod, the cup being counter bored providing an upper end of greater diameter than the body, the body below the counter-bore being threaded, a threaded plunger for engagement therewith, the length of the plunger being slightly less than the depth of the counter bore whereby the plunger may be withdrawn from the thread ed walls into the said counter bore, a feeding mechanism for the plunger, and a case for the mechanism, said mechanism including a block reciprocated by the throw of the rod, and means connected therewith for turning the plunger, the case being adapted to eX- pose the open end of the cup when the plunger has been withdrawn from threaded re lation therewith.

5. A lubricating device for locomotive rod pin connections comprising the combination with a rod and pin therefor, of a grease cup carried by the rod, a plunger adapted for threaded relation with the cup, a block adapted for limited reciprocal movement by movement of,the rod, mechanism whereby said movement of the block causes rotation of the plunger relative to the cup, and means causing cessation of rotation of the plunger actuated by the plunger on approaching the limit of its movement.

DE-YO JONES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, I). G.

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