US2195814A

US2195814A - Waste grab preventer

Info

Publication number: US2195814A
Application number: US254394A
Authority: US
Inventors: Walter M Gibbs
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-02-03
Filing date: 1939-02-03
Publication date: 1940-04-02
Anticipated expiration: 1957-04-02

Description

April 2, 1940. w. M. Glass wAs'rE sima PREVENTER 5 Sheets-Sheet 1 Filed Feb. 3 1959 April 2, w. M. Giens WASTE GRAB PREVENTER s sheets-sheet 2 Fiied Feb. 5. l19u39 10 sa c sa 2227 ala M1 figg.

w. M. GlBBs wAsTn GRAB ranvnnrn Filed Feb. s. 1939 April 2,

3. Sheets-Sheet 3 Patented Apr. 1940 g 2,195,814` l WASTE GRAB PREVENTER walter M. Gibbs, chicago, .111. Applicationliebruary 3, .1939, ,Serial No.` k254,394

3 Claims.

My invention contemplates and provides novel,

or. chunks of lubricating packing upwardly toI the bearing brass (or other journal-engaging box-supporting shoe) for lodgment between the brass and "journaL-such lodgment being permitted by momentary separations@ of -brass and journal resulting from the jolts and jars of trafc. When so lodged, the grabbed packing ma.- terial, acting very much like a squeegee, prevents the very necessary continuous film of oil from existing between the-brass and journal. The results, of Va waste grab, unless it is'speedilyl discovered, and corrected, are a hot box and ,sometimes a destroyed journal-possibly awreck.

Waste grabs occur mostl frequently in cold weather when the oil which saturates the packing is quite sti". However, waste grabs occur at all times of the year. The -grabbed packing material usually comes from the upper surface ofthe packing contained in the journal box, but

it does, in some cases, come from below the upper' surface of the packing. v The term bearing brass as hereinafter use in this specification, should be regarded as broad enough toinclude any box-supporting journal engaging shoe of whatsoever material or materials made.

AIn its most simple and preferred form,: the

Waste grab-preventer of the present inventionv consists of a metal sheet (preferably but not nec essarily of brass) which is conformed to consti# tute -a partial sleeve which snugly embraces, and by its inherentl springiness vclings to, the major portion of the cylindrical surface of a journal (at rest or in rotation) `which. is not in the ernbracegof the bearing brass. The longitudinal edges of the partial sleeve are preferably provided with' flanges adapted to engagev the bearing brass to insure that suchvpartial sleeve cannot have either of its longitudinal edges become caught between the journal and the bearing brass. That portion of the partial sleeve which lies beneath the upper surface of the packing is provided with a plurality of apertures through which the packing may contact the cylindrical surface of the journal and effect its lubrication. The

portions of` the partial sleeve which lie aboveA (01,..sos-s9) imperforate for some distance. above the packing both fore and aft of the journal; 1 f

In a modified embodiment olf-,my yinvention the longitudinal edges of the waste grabpre- Venter are conformed to interengage with portions of thebearing brass to lpreventthe waste grab preventer from moving longitudinally of the journal'into engagement withy either the coleA lar (end flange) or fillet'fshoulder) of thejournal. Such modified embodiment of my invention isalso characterized by a plurality of oil collecting grooves which are formed onthe innery surface of that portion of the waste grab pre-l venter which is apertured ,t0r allow contact of the packing with the journal.

These and other objects, features and ladvantages of my invention will appear fromgthe `fol-. lowing detailed description, wherein reference is madel to thel accompanying three sheets, of

drawings, in which Fig; 1 is a vertical section, through a conventional journal box assembly, which is taken Ain a plane parallel with the vjournal axisthe journal being shown in elevation and the waste grab preventer partially in elevation and partially in section;

UNITED STATES PATENT'FFICE l. 30 sectional View, taken in the samev plane as Fig.2, but on larger scale,

packing and waste grab preventer;

Fig, 4 is an isolated perspective viewl of ythe waste grab preventer ofthe preceding figures; j y Fig. 5 is a View generally corresponding to Fig. 1 butillustrating a modified form of the waste grab preventer; Y

Fig. '6 is an isolated perspective view of the waste grab preventer of Figs. 5, 7, and 8;

Fig. 7 is a horizontal sectional view which may be regarded astaken in the several horizontal planes of the line 'll-fi of Fig. 5, a portion of the brass bearing being shown in top plan and the illustrating portions of the journal, bearing brass,

. remainder lbeing. `broken away to reveall parts therebeneath; andA H Fig. 8 is a Viewv corresponding generally to that of Fig. 3, but illustrating the modified form of Waste grab preventer in its appropriate' relationship to the elements with which it cooperates.

Similar characters of reference refer to similar parts throughout the several views.l n In the x,accompanying drawings reference nu- -meral I0 denotes what is or, may be a conventional box for the journal II of an axle I2. The journal box IIJ, as illustrated, comprises the usual opening I3 normally closed by cover I4, and the usual dust guard Well I5 in which is disposed a suitable dust guard represented as a whole by reference numeral I6. At I'I is depicted the usual bearing brass which, in the present instance, is provided with babbit lining I8. The usual or any suitable bearing brass wedge is indicated at I9. The journal II, being of conventional design, comprises the collar or end flange 20, and the shoulder or llet 2l.

Disposed in the lower portion or well of the journal box I Il is a suitable quantity or" oil soaked packing 22, which usually consists of Wool waste or cotton waste having coiled springs interspersed therewith. The packing depicted in the accompanying drawings may be presumed to have been placed in accordance with approved present-day railway practice, and may be regarded as consisting of three portions, vnamely the back roll {l2-a, the principal packing body 22-b and the front plug 22-c. The upper surfaces of those packing portions (back plug 22-a and principal paclnng body 22-19) which lie under and partially around the cylindrical surface of journal II are at a level somewhat below the horizontal plane which includes the journal axis. In fact, the horizontal plane of the upper surfaces of such portions of the packing is usually approximately one inch below the horizontal plane which includes the axis of the conventional journal found in general use by American railroads.

The several elements thus far mentioned in this detailed description of the accompanying drawings, are old. They have been shown and described because collectively they constitute a preferred environment for the now-to-be-described waste grab preventer which is the salient feature cf the present invention.

The waste grab preventer, in its more simple form of Figs. l to 4 inclusive, consists of a sheet 23 of metal, preferably but not necessarily brass, which is conformed to constitute a partial sleeve which will snugly embrace the greater portion of so much of the cylindrical surface of journal II as is not embraced by the concavity of bearing brass I'I (see Fig. 2). Such partial sleeve possesses inherent resiliency in the sense that when it is removed from the journal its longitudinal (upper) edges assume positions wherein they are closer together than are the closest positions which they are permitted to assume when such partial sleeve is embracing the journal. Consequently, the waste grab preventer, by virtue of such inherent resiliency, acts to hold itself snugly upon the portion of the journal which it embraces, and maintains that position, despite relative rotation of the journal in either direction.

The longitudinal edges of the waste grab preventer are provided with outwardly turned flanges 24. Such waste grab preventerr also has imperforate lateral portions 25-25 and a perforate intermediate portion 26. The apertures in the perforate portion 26 are preferably of rather large size, and most of them desirably are square or of diamond shape, as indicated at 28. The apertures 21, at the ends of the waste grab preventer, preferably are triangular to complete a regular pattern of spaced-apart apertures occupying a laterally curved rectangular iield.` I prefer that the several apertures in each longitudinal row be staggered with respect to the apertures of the adjacent row or rows, as illustrated.

In that embodiment of my invention which is shown in Figs. 1 to 4 inclusive all of the inner surface of the waste grab preventer is smooth.

When the waste grab preventer is in cooperating relationship with the journal II, the packing 22 and the bearing brass I'l, as illustrated in Figs. 1, 2 and 3, all of the

apertures

21 and 28 lie below the upper surfaces of those portions of packing 22 upon which the journal depends for direct lubrication, and such portions of the packing can only engage the cylindrical surface of the journal through such apertures. Flanges 24 stand ready to engage the lower lateral edges of the bearing brass I 'I if the journal II, when rotating in and with respect to the waste grab preventer, should tend to carry either of the longitudinal edges of the waste grab preventer between the journal and the bearing brass. I prefer that the flanges 24 shall be out of Contact with bearing brass I1 when the waste grab preventer is initially installed-thus compensating in advance for expected wear of journal and bearing brass.

If any threads or chunks of the packing in contact with the cylindrical surface of the journal should adhere to the journal, when the journal starts from rest or at any other time when it is rotating, such threads or chunks of packing material can move only a very slight distance with the journal before they are scraped therefrom by the trailing margins or margin of the particular aperture 2l' or 28 at and through which such threads or chunks of packing material are contacting the journal. Thus waste grabs are thwarted by a very simple and effective means which does not prevent the cylindrical surface of the journal from being effectively lubricated by the oil saturated packing. An additional but by no means inconsequential advantage afforded by the waste grab preventer of the present invention is attributable to the fact that when the journal comes to rest a substantial quantity of oil tends to collect, as a film bridging the narrow .spaces between the smooth cylindrical surface of the journal and the opposed smooth inner f surfaces of the waste grab preventersuch oil iilm affording the journal its initial lubrication when its rotation recommences.

I prefer to install the waste grab preventer as follows: With the journal box I0 jacked up and with the bearing brass I1 removed, the waste grab preventer, with its longitudinal edges extending downwardly, is slipped over the journal II, to take a position between its collar 20 and its shoulder 2|. is turned through to its operating position depicted in the drawings.

The waste grab preventer of Figs. 5 to 8 inclusive differs from the waste grab preventer of the preceding gures only in that (a) it is proi vided with means arranged to interlock with the bearing brass to insure that the waste grab preventer shall not engage either the collar 20 or the shoulder 2| of the journal II, and (b) it is provided with oil grooves in the inner surface of its perforate portion 26 to permit an increased quantity of oil to collect between the cylindrical surface of the journal II and the opposed inner surfaces of the Waste grab preventer when the journal is at rest.

The portions of the waste grab preventer of Figs. 5 to 8 inclusive which interlock withthe bearing brass I'I are the triangular lugs 29 which are turned upwardly from the flanges 24, and the integral extensions 30 of the waste grab preventer Then the waste grab preventer j secure by Letters Patent of the United States is:

` which lie adjacent to but rise above the flanges 24. Triangular lugs 29 are adapted to engage the contiguous surfaces of the conventional stop lugs 3l of the bearing brass I`l,to keep the right hand end (Fig. 7) of the waste grab preventer from slipping into scraping engagement with the journal shoulder 2|. The extensions 30, to which I have previously alluded, are adapted to engage the right hand ends (Eg. 7 of the stop lug extensions 32, to keep the left handvend of the waste grab the Waste grab preventer and the cylindrical surface of the journal'when the journal is at rest, are indicated at 33. preferably intersects .and communicates with one or more of the other grooves, as is most clearly illustrated in Fig. 6. f

Under most practical conditions I find that the more simple form of waste grab preventer `depicted in Figs. 1 to 4 both inclusive, will serve is in motion. Moreover, I find that the more sim.

p-le form of waste grab preventer will, when used with the ordinary journal, develop a suiiicient oil lm between itself and the journal when the journal is at rest, notwithstanding that it lacks the oil vcollecting grooves 33 of Fig. 6.

In certain situations, however, the more elaborate form of waste grab preventer shown in Fig. 6 will justify the additional manufacturing expense which its addedl features entail.

Having thus illustrated and described my invention in connection with two practical embodiments thereof, what I claim as new and desire to Each of these grooves 33 1. In combination a journal, a journal box, a journal-engaging box-supporting shoe and journal lubricating packing carried in the journal box; a waste grab preventer in the form of a partial sleeve of inherently springy metal embracing `the cylindrical surface of the journal, said waste grab preventer extending more than 180 around the cylindrical surface of the journal and having its longitudinal` edges lying adjacent the shoe, apertures in said waste grab preventer through which the packing may contact the cylindrical surface of the journal, said waste grab preventer lying in the packing and said apertures lying belowr the upper surfaces of the packing, said apertures being arranged in a plurality of longitudinal rows with some of said apertures staggered with respect to others.

2. A waste grab preventer consisting of a sheet of inherently springy metal having the shape of a partial sleeve adapted to embrace and extend more than 180n around the cylindrical surface of a packing lubricated shoe-supportingjournal, a portion of said partial sleeve which is spaced-from and lies intermediate its longitudinal ledges being provided with a multiplicty of apertures through which packing material may engage the cylindrical surface of a journal which the waste grab preventer embraces.

3. A waste grab preventer consisting of a metal sheet having the shape of a partial sleeve adapted to embrace and extend more than 180 around the cylindrical surface of a packing lubricated shoesupporting journal, a portion of said partial-sleeve intermediate its longitudinal edges being provided with a multiplicity of apertures through which packing material may engage the cylindrical surface of a journal which the waste grab preventer embraces, the longitudinal edges of said waste v grab preventer being normally resiliently urged to WALTER M. GIBBS.