US2024205A - Journal box - Google Patents

Description

Dec. 17, 1935.

W. BLACKMORE JOURNAL BOX.

Filed March 15, 1932 4 Sheets-Sheet 1 1 aywembo 'c [HM/am Bum Hora 35 m aumw I w. BLACKMORE 2,024,205

JOURNAL BQX Filed March 15, 19 32 17, 193; w, BLACKMQR: 4 2,024 JOURNAL I Filed March 15, 1932 4Sheets-Sheet 4 .F. I a

i gl 18 14 Q? I I 15 INV OR- wzamm BY 4 Patented Dec. 17, 1935 UITED STATES OFFICE Application March-15,

16 Claims.

This invention relates to improvements in journal boxes applied to railway cars. Ithas'particular reference to the provision of effective-lubrication of a plain bearing. In accordance with the invention oil is taken from a reservoir at the bottom of the box and is forced onto the bearing surface of the journal with the result that continuous and thorough lubrication is main.- tained.

A feature of the invention is the provision of an oil ring on the end of the journal cooperating with a portion of the brass in such a wayas to cause oil picked up by the ring to be forced through suitable passages in the brass and distributed over the surfaces requiring lubrication. Mounting of the ring on the end of the journal in the manner contemplated will leave substantially the entire bearing surface of the brass unbroken,

except for the grooves or channels provided for the distribution of the oil. Any objectionable reduction of the bearing area will in this way be avoided.

Another feature of the invention is the formation of the ring receiving groove in'thebrass such a way that the resistance to the-movement of the ring through the groove is reducedto a minimum. This groove, furthermore, is so formed in accordance with the present invention as to most effectively force the oil carried up by the ring into the distributing channels provided in the brass.

A further feature is the provision of improved means in cooperation with the oil ring? for more effectively removing the; oil from its surface and forcing the oil into the distributing passagesin the brass.

Other features and advantages of theinventtion will appear from a detailed description of an illustrative form of the invention which wilLnow' be given in conjunction with the accompanying" drawings in which:

Fig. 1 is a vertical longitudinal sectionthrough Fig, 4 is a transverse, vertical section through:

the box, the left half of the viewbeing takenalong the line L- t of Figure 1 and the right -half being taken along the line 4A-4A- of Figure 1,

Fig. '5 is a detail view in section taken along the line 5--5 of Figure 2, a

Fig. 6 is a view similar to Figure 4' showing the upper portion of a modified form of box;

193 2, SerialNo. 598,971

Fig. =7 'is'a detail sectional View along the line 1-1 of: Figure -6-,

. Fig.8 is a view: similar to Figure 4 showing a portion of a-furthermodification, and

Fig. 9 is a detail sectional View along the line 5 9.& of Figure 8.-

Referring now to the drawings there is'illustrated a journal box 10 of the'detachable type adapted to be mounted in: a standard arch bar frame. The box is of substantially standard di- 10 mensions and construction, being modified only sufficiently to providea reservoir H for the; retention of a body of lubricant. It should be understood thattheinvention is equally applicable'to aboxof thetype commonly formed integrally. withthe side frame.

A journal l2' extends'into the'box through an opening 13 at-the-rear. A- wedge l4 and brass i5= may be interposed in the" usual way between the top of the box and: the upper side of the journal; The wedge-'may be of standard con-' struction and may cooperate with the brass in the ordinary way.. On'the enlarged collar portion l6 attheendofthe journal there is mounted an oilring Ilof' sufficient diameter to depend into the body-of lubricant maintained in the reser'-- voir;- This; in the arrangement shown, will not necessitate any increase in the distance between the side walls of the box. At its forward endthe-brassis provided with a downwardly ex- 0 tendingflange portion til-"which serves to retain the ring; Won the collar of the journal. For this pugio'se-the flange may extend to substantially the imerscircumferential surfaceof the ring and its lower edgemay; in part, substantially fol1ow'35 the contour'of' this-surface'. The flange should not'extend radially inward beyond the' periphery of the collar It since it must not interferewith the relativelongitudinal movement normally permitted between the journal and the "brass.

"The flange" I8 is formed at theiforwai'd end of a portion lflll'which' extends beyond the normal end" of a Standaidbrass; This portion or extension [80, as best seen in Figures'2 and 4, is relatively narrow and is so formed'that the walls MI ofthe wedge may be-slidover the edges lt'l" of the. extension. It will be apparent therefore, that the extensiononthe-brass will not'interfere with theassembly of-i-the parts upon the journal. On

its opposit'e -side the ring: maybe retained-by a surface l9 'on the brass, a slight clearance being: allowed- =-between' the ring and the cooperating face ofthe flange- 8 on one side and 'the surface.

l9- on the other side: A groove, recess, or pocket f where the ring enters the recess.

in the under surface of the brass is thus provided over the ring.

As best shown in Figures 1 and 2 the side walls of the groove or recess formed between the flange l8 and shoulder H! are flared outwardly at. the sides where the advancing portion of the ring first enters the groove. This is accomplished by tapering the inner surface I82 of the flange away from the ring as indicated at I83 (Fig. 5) adjacent the free ends of the flangeand by similarly tapering the surface l9 at the points l9l. It should be noted, however, that the portion I92 of the surface [9, which lies within the circumference of the ring, approaches more nearly the inner surface of the collar I6. The provision of the tapered surfaces I83 and l9l serves to form a flared pocket at each side of the ring for the accumulation of oil which is carried up by the side faces of the ring. This oil is then squeezed into the restricted passage between the surfaces I82 and I90 and the sides of the ring. If these flared portions were not provided there would be danger that the oil carried up by the sides of the ring would be wiped off by the relatively sharp corners at the edge of the brass This would permit direct contact of the ring with the inner surface of the flange l8 or with the surface l9 which would tend to retard and possibly arrest the rotation of the ring. On the other hand when the flared surfaces are employed ample lubrication is provided between the sides of the'ring and the adjacent faces of the brass so that practically no retarding force is applied to the ring. The top or roof 20 of the recess above the ring may be in the form of a surface substantially concentric with the ring although it is preferably inclined at a suitable angle to the axis of the journal and adapted to cooperate with the ring in a manner to be explained.

An opening 2| may conveniently be formed through the top of the recess in the brass and may be adapted to rather snugly receive a member 22 which may suitably be bent in the form indicated. The member 22 is preferably pro- Vided with laterally extending feet 23 which rest upon the upper surface of the oil ring while the main portion of the member substantially fills the opening 2|. Oil which is picked up by the ring is carried into the pocket formed between the outer surface of the ring and the surface 29 on the brass. It is stopped by the member 22 which serves to wipe it from the ring' as the latter is rotated with the journal. This oil is deflected from the pocketlmentioned by the member 22 and is forced through anopening 24 which communicates with a recess or channel 25in the top of the brass. The oil is forced under an appreciable pressure, created by the pumping action of the ring, through the opening 24, the inclination of the surface 20, as shown in Figure 3, as-' sisting in forcing the oil toward the opening. From the opposite end of the channel 25 it is fed through an opening 26 to a recess 2'! in the under side of the brass. From this recess the oil is fed to all portions of the bearing'surface of the journal by means of longitudinally extending grooves 28. These deliver the oil to the upwardly moving side of the journal so that the latter is well luibricated as it is brought into the zone of main bearing contact with the brass. It will be understood that the construction just described is duplicated and symmetrically arranged on both sides of a vertical plane passing through the axis of the journal. Thus the opening 24, channel 25, opening 26, recess 27 and groove 28 are duplicated on the two sides of the brass so that inspector replenish the oil in the reservoir 1 I.'

To prevent escape of this oil a cover 33 may be provided at the front of the box and adapted to force a packing ring or gasket 3| against the mouth of the box. This cover may be retained by a bolt 32 which at its inner end is held by a channel member 33 that may be turned when inserted in the mouth of the box to engage the inner side of a flange 34. At the inner end of the box. a felt member 35 may be retained in a recess 36 and adapted to engage the periphery of the journal to prevent escape of the lubricant at this point. In addition an oil collecting or retaining ring 37 may be mounted on the journal adjacent the inner end of the box, this ring serving largely to prevent the passage of oil along the journal.

In Figures 6 and 7 there is shown a slightly modified arrangement for forcing the oil into the distributing passages of the brass. The undersurface 38 of the roof of the recess in the brass which receives the oil ring is curved along an arc thatis eccentric with respect to the ring and it is so arranged that the pocket between this surface and the ring converges toward the top of the journal. In addition to its circumferential convergence toward the top of the ring the recess has its surface 38 inclined at a suitable angle to the axis of the journal,'as shown in Figure 7. This, as previously explained, tends to direct the oil into the passages in the brass. Due to the necessity of allowingfor the wear of the brass in the course of its use it is not possible to bring the portion 38I of the surface 38 at the top of the journal into close proximity to the outer surface of the 'ring.' However, a definite restriction or reduction in cross-section of the passage between these surfaces at the top of the journal may be provided and this restriction will gradually become more pronounced as the brass wears away. Furthermore the restriction may be made i more pronounced at the outset by leaving the portion 38l parallel with the journal axis instead of inclining it to this'axis. The inclined and parallel portions of the surface 38 may suitably be gradually merged so that the inner edge of this surface follows the curvature indicated by the line 382 in Figure 6. If desired, however, a more abrupt shoulder may be provided between these portions of the surface. As a result of the. restriction in the passage the oil will not be permitted to flow over the top of the journal as rapidly as it is fed by the oil ring into the pocket adjacent the upwardly moving side of the ring. This causes the oil to be readily diverted by the inclined surface 38, as in the first embodiment of the invention, into an opening 39 through which it will then be forced and distributed along the journal in the same manner as previously explained. It should again be understood that the construction is duplicated on the two sides of a vertical plane through the axis of the journal so that the oil will be properly distributed regardless may be substantially the same as that of the first embodiment; The roller 4111s adapted to rotate within the recess 4| provided through the top of the brass and thus minimizes the drag upon the ring which tends to retard its rotation. Even if the roller were held stationary it will be apparent that substantially only a line contact with the surface of the ring would be obtained. It will be understood that as the journal is rotated the oil carried up on the outer surface of the ring will be blocked or obstructed by the roller and will be forced through the opening 42 by the inclined surface 43 of the recess.

' While certain illustrative forms of construction embodying features of the invention have been disclosed in detail it will be understood that various changes may be made in the construction and arrangement of the parts without departing from the general spirit and scope of the invention. For example the ring I I might be replaced by a chain of suitable form such as the typecommonly designated a silent chain. The terms and expressions employed herein have been used as terms of description and not of limitation and it is not intended by their use in the claims to exclude equivalent structures.

What I claim is:

1. In a structure of the class described a car journal having an enlarged end, a journal box, brass and wedge members between said journal and box, an oil conveying member mounted freely on said enlarged end, said brass extending over the oil conveying member, an element slidably mounted in said brass and cooperating with said 011 conveying member to force the oil therefrom to the journal.

2. In a structure of the class described a car journal having an enlarged end, a journal box, brass and wedge members between said journal and box, an oil conveying member mounted freely on said enlarged end, said brass having a recess therein cooperating with said oil conveying member to form a pocket, said brass having a passage extending from said pocket to the journal, and means mounted in the brass at said pocket for forcing oil into said passage.

3. In a structure of the class described a car journal having an enlarged end, a journal box, brass and wedge members between said journal and box, an oil conveying member freely mounted on said enlarged end, said brass extending over said enlarged end and having a recess therein cooperating with said oil conveying member to form a pocket, said brass having a passage extending from said pocket to the journal, means projecting into said pocket toward said conveying member to form a restricted passage adjacent the top of the journal to force oil, carried up by the conveying member, into said passage.

4. In a structure of the class described a car journal, a journal box adapted to receive said journal, brass and wedge members between said journal and box, an oil conveying member freely mounted on said journal, said brass having a recess adapted to receive the oil conveying member and form a pocket therewith, means carried by said conveying member and separate therefrom for blocking said pocket toward the top of the journal, and said brass having a passage for conveying oil from said pocket to the journal.

5. In a structure of the classdescribed, a car journal, a journal box adapted to receive said journal, brass and wedge members between said journal and box, an oil conveying member freely mounted. on said journal, said brass having a journal and box, an oil conveying member freely 10 I mounted on said journal, said brass having a recess adapted to receive'the'oil conveyingmember and form a pocket therewith, means. mounted within said recess and adapted'to rest upon said oil conveying member; to remove oil from the 5 outer surface thereof, said brass having a passage communicating with .said pocket at a pointremoved from said means for conveying oil to the journal.

'7. In a structure of. the class described acargo journal having an enlarged end, a journalbox adapted to receive said journal and having an oil reservoir beneath said enlarged end, a brass bearing upon said journal, an oil conveying member freely mounted on said enlarged end of the jour- 25 nal, said brass having'a portion extending .over

said conveying member and a flange extending downwardly in front of the same, said portion and flange being so constructed and arranged with relation to said conveying member as to form a passage having a smaller cross: sectional area near the top of the journalthan at either-side thereof to force oil conveyed by the member onto the journal.

8. In a structure of the class described a car journal having an enlarged end, a journal box adapted to receive said journal and having an oil reservoir beneath said enlarged end, a brass bearing upon said journal, an oil conveying member freely mounted on and in the plane of said enlarged end of the journal, said brasshaving a portion extending over said conveying member and a flange extending downwardly in front of the same and immediately adjacent the outer surface of said enlarged end, said flange termi- 45 nating substantially in line with the inner edge of said conveying member, and means including said portion and flange cooperating with said conveying member to force oil conveyed thereby onto the journal. r

9. In a journal box adapted to receive a journal, a bearing member above said journal, an oil conveying member adapted to be rotated by the journal but supported for free movement thereon, said bearing member having a transversely extending groove adapted to receive a portion of said conveying member, and means comprising portions of said bearing member for preventing contact between the sides of said conveying member and the side faces of said groove.

10. In a journal box adapted to receive a journal, a bearing member above said journal, an oil conveying member adapted to be rotated by the journal but supported for free movement thereon, said bearing member having a transversely extending groove adapted to receive a portion of said conveying member, and means for preventing contact between the sides of said conveying member and the side faces of said groove, said means comprising outwardly flared portions on the surfaces at the sides of said groove.

11. In a journal box adapted to receive a journal, a bearing member above said-journal, an'oil j conveying member adapted to be rotated by the journal but supp rted for free movement thereon,

said bearing member having a transversely extending groove adapted to receive a portion 'of said conveying member, and means including surfaces at the sides of said groove inclined to the sides of the conveying member for insuring the provision of an oil film between the opposed surfaces of said conveying member and groove.

12. In a journal box adapted to receive a journal, a bearing member above said journal, an oil conveying member adapted to be rotated by the journal, said bearing member having a recess in its under surface adapted to receive a portion of said conveying member, and means including a surface on said bearing member above said recess opposite and inclined axially to the outer surface of said conveying member for forcing oil onto the bearing surfaces of said journal.

13. In a journal box adapted to receive a journal, a bearing member above said journal, an oil conveying member adapted to be rotated by the journal, said bearing member having a recess in its under surface adapted to receive a portion of said conveying member, and forming a pocket therewith, said bearing member also having oil distributing passages in communication with said pocket, the pocket being so formed and arranged as to increase in radial dimension. toward said oildistributing passages.

14. In a structure of the class described a journal having an enlarged end, a brass cooperating with said journal and having a portion extending over said enlarged end, an oil conveying member carried by said enlarged end but movable rel ative thereto and cooperating with a recess in said extending portion to distribute oil to the bearing surfaces, said extending portion being so constructed and arranged as to permit insertion 5 and removal of a standard wedge in and from operative relation to the brass.

15. In a journal box, a journal having an enlarged end, a bearing member between said journal and box, said member having a portion extending over but spaced from said enlarged end and provided with a depending flange, passages in said member for conducting oil to the journal bearing, an oil conveying element freely mounted on said enlarged end, and means comprising said member, flange and element forming a pocket between said portion and said enlarged end more restricted in cross section at the top of the journal than at either side for forcing oil into said passages.

16. In a structure of the class described a car journal having an enlarged end, a journal box, a brass member between said journal and box, an oil conducting passage in said brass, an oil conveying member freely mounted on said enlarged end, a roller mounted on said conveying member to direct oil into said passage, and means comprising a downwardly extending projection on said brass to substantially prevent oil from flowing outwardly of said enlarged end.

WILLIAM BLACKMORE.

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