US2218315A - Journal lubrication pad - Google Patents

Description

Oct. 15, 1940.

A. J. JONES JOURNAL LUBRICATION PAD Filed sept. 1, 195e Patented Oct. 15, 1940 PATENT OFFICE JOURNAL LUBRICATION PAD Aldred J. Jones, deceased, late of Chicago, Ill., by Edith W. Jones, adminstratrix, Chicago, lll.

\pplication September 1, 1938, Serial No. 227,938

3 Claims.

The invention relates to lubricating devices, and more particularly, it relates to a pad comprising a body of absorbent material having capillary properties and adapted to carry the oil contents of a car journal box to the journal.

The pad herein illustrated and described is of the same general type as that shown in the co-pending application of Aldred J. Jones, Se-

rial No.` 54,231, filed December 13, 1935, nowy Patent No. 2,132,420 for Car journal lubricators, of which this application is a continuation in part.

The invention has among its objects the provision of improvements in a pad of the kind described adapting it to be held against the journal to be lubricated in a manner such that the pad has uniform capillarity and an even bearing surface in contact with the pad. The pad is adapted to be suspended from a suitable holder with its lower end immersed in the lubricant,

`the bearing surface of the pad being maintained in contact with the journalby the holder. Uniform delivery of the lubricant over the bear- .ing area of the journal obviously requires that the pad have an even journal bearing surface and that its connection with the holder be such as not to interfere with the capillary travel of the lubricant to the bearing surface. Any direct connection of a holder or pressure plate with the journal contacting portion of a pad necessarily produces depressions in the journal contacting surface of the pad and also interferes with its capillary action at the points of connection. Journal lubricating pads as heretofore constructed have had their journal contacting or lubricating portion directly connected with a holder or with a pressure plate by rivets, staples, stitches or similar means which provide recesses in the delivery face of the pad and also interfere with capillary action at such points. It is found in practice that car journals lubricated by such pads have bright annular bands or areas corresponding to such points of connection which indicate that such areas are insuiciently lubricated, and that the deficiency in lubrication is very pronounced on high speed equipment. The invention contemplates the provision of a pad having a fold, flap or other suitable element positioned between the journal bearing portion of the pad and the holder and with which both the holder and the pad are connected. the pad proper being thereby suspended from and indirectly connected with the holder with the result that the pad has the requisite even journal bearing surface and uni- (cl. s-.243)

form capillary action and the thrust of the holder is uniformly distributed over that portion of the pad in direct contact with the journal.

Another object of the invention is the provision of a pad of increased durability, this being accomplished by providing a cover for the pad except at the journal bearing portion. The pad is quilted to give suflicient rigidity to prevent the wick material from bunching when inserted in the journal box. A cover of tough, durable material not only prolongs the useful life of the pad, but also facilitates its renovation by preventing dirt, grit and other foreign contents of the lubricant from working into the absorbent material. A further advantage of the cover is that it prevents direct frictional contact of the absorbent material with the journal box which would otherwise tend to abrade certain areas thereof and also minimizes or prevents injury to the absorbent material through the inadvertent using of a hook or pointed tool in the journal box.

Still another object of the invention is the provision of a pad of the kind described which is durable, inexpensive to manufacture and install, and so constructed that it remains completely saturated without waste of the lubricant.

Many other objects and advantages of the construction herein shown and described will be obvious to those skilled in the art from the disclosure herein given.

To this end, the invention consists in the novel construction, arrangement, and combination of parts herein shown and described and more particularly pointed out in the claims.

In the drawing, wherein like reference characters indicate like or corresponding parts:

Fig. 1 is a transverse sectional view through a journal box equipped with a pad embodying the principles of the invention, the view being taken approximately along the line I-I of Fig. 2;

Fig. 2 is a view approximately along the line 2 2 of Fig. 1, showing a side elevational view of the pad and a pad holder in operative position;

Fig. 3 is a back view of the pad, illustrating means for attaching it to the holder;

Fig. 4 is a view of the front side of the pad showing a gap in the fabric covering so positioned as to prevent engagement of the fabric cover with the journal and to permit direct contact of the absorbent material with the journal; Fig. 5 is a longitudinal sectional view of the pad taken along the line -5 of Fig. 3 and drawn to alarger scale;

Pig. 6 is a view similar to Fig. 5 illustrating a modiiled form of pad construction; and 5 Fig. 7 is a view illustrating a modified form of pad holder.

Referring now more particularly to the drawing, the numeral I5 generally designates a pad embodying 'the principles of the invention. The pad preferably consists of a plurality of strands or rovings II of cotton or similar material having a high degree of capillarity and each acting as an individual wick extending the full length ofthe pad. The individual rovings II are substantially rectangular in cross section and are held in closely spaced juxtaposition by a plurality of transverse lines of stitches I2 having a spacing of approximately the width of the rovings. Lines of stitches I3, respectively extending between the contiguous rovings, are interwoven with the stitches I2 and cooperate therewith to give a quilted effect to the rovings. The

rovings II are preferably of relatively loose texture to facilitate free ilow of oil to the journal. The stitches I2 are sumciently taut to impart a uniform slightly quilted effect to the rovings II without, interfering with their capillary action.

The rovings II, having been connected as described by the stitches I2 and I3, fabric sheets .I4 and I5 arefastened thereto to provide a cover, the sheet Il preferably extending the full length of the rovings on the back side and around the top and downwardly on the front side to form a border Ila. 'I'he sheet I5 extendsfrom the bottom of the rovings and terminates at a distance from the marginal border Ila to providea substantial transverse gap in the cover. The edges of the sheets I4 and I5 are folded and overlap at the edges of the rovings so as to form`a hem I6, the overlapping portions being connected by lines of stitches 16a extending through the pad, all preferably in a manner such that the rovings are completely covered except at the gap adjacent the top portion of the pad where the hem is omitted. The pad is strengthened and given substantial rigidity by providing transversely and diagonally extending lines of stitches designated by the numerals I1 and I3, respectively, which extend through and connect the opposite cover sheets I4 and I5. The main body of the pad quilted as described is easily inserted in a journal box without bunching and is adapted to bend to conform to and lie on the bottom of the journal box I9, as shown in Fig. 1. The fabric sheets I4' and I5 are preferably constructed of duck or similar durable material adapted to prevent foreign particles from entering into the rovings and which is resistant to abrasive wear and is not easily torn by inadvertent engagement therewith of a hook or other pointed tool.

The gap between the marginal border Ila and the top of the sheet I5 provides an uncovered area of the. rovings adapted to be positioned in direct uniformly pressed contact with the journal 20, as shown in Figs. 1 and '1. The gap in the fabric cover is desirable since it isfound in practice that lubricant collects on the fabric and tends to cake and the fabric thereby becomes impervious to oil if it is maintained in direct pressure contact with the journal.

The pad has a width corresponding to the length of the journal bearing requiring lubrication and the width of the gap between the border Ila and the sheet I5 is sulcient that neither the lflap or fold 2I positioned oppositethe uncovered portion of the rovings, the fold being fastened to the body of the pad by means of stitches 22 which maybe omitted if desired. A bar or plate 23 connected with the fold 2| provides a connection of the fold witha pad holder and maintains the pad with the uncovered rovings II pressed against the journal 23.

One form of pad holder, mounted in the journal box Il, comprises a horizontal rod 24 suitably fastened to the box, and a vertically extending member 25 having its lower end forked and turned to provide eyes 25 through which the rod extends. The bar 23 is pivotally connected with the member by a pin 21 extending through'- loops or eyes 23 provided by the upper end of the member. A plurality of transversely extending metal bands or strips 25 are mounted on and fastened to the plate 23 by rivets 30 extending through the fold 2|, the middle portion of the bands or strips being'curved to provide sockets through which the pin 21 extends. The pad is easily detached from the holder by moving the pin 21 longitudinally to disengage the member 25. 'The pin 21 is normally held against longitudinal movement by providing one end with a laterally extending stem 3| and by providing the corresponding end of the plate or bar 23 with a projection 32. The stem 3| -may be formed by bending the pin 21 and the projection 32 is preferably formed by bifurcating the end of the bar or plate 23 and bending the lower bifurcated portion outwardly. The pin 21 is normally positioned as shown with the stem 3I lying inside of the projection 32, the projection serving as a stop permitting removal of the pin only by rotating it to elevate the stem above the projection.

The supporting member 25 is inclined upwardly and inwardly toward the journal 20 whereby the weight of the pad tends to press it against the journal. The pressure of the pad on the journal due to the weight of the pad is increased by means of a weight member 35 eccentrically mounted on an inclined rod 35, the rod being rigidly connected with or forming an extension of the member 25 and extending through a slot 31 in the p'ad. The weight of the member 34 increases the pressure of the pad against the journal, the amount of such pressure being varied and maintained constant as desired; by shifting the member along the rod 35 and fastening it in adjusted position by means of a set screw 35. The

1 rod 35 is relatively narrow and the slot 31, y through which the rodextends, is formed bepad is such that it contacts with the full'length 7 5 of the bearing area of the journal. The rovings being substantially rectangular-in cross section and in close lateral juxtaposition, the pad thereby provides a continuous arcuate lubricating surface constantly pressed against the journal 20. The provision of the pressure bar 23 and the fold 2| are important features of the invention since they cooperate to hold the pad uniformly against the journal. I'he heads of the rivets 30 compress the fold 2| substantially in a small area immediately surrounding the rivets as is best shown in Fig. 5 which illustrates the position of the fold when the pad is detached from the holder. The pressure exerted on the fold 2| by the bar 23 when the pad is in operative position compresses the fold and flattens its inner surface so that the fold and the rivets have equal bearing on the journal contacting portion of the pad.

A modified form of pad is shown in Fig. 6 as providing a pad section 38 similar in all respects to thevfold 2| shown in Figs. 1 to 5 except that the rovings Il are discontinuous, and bending thereof at the top of the pad is avoided. The fabric cover I4 is preferably continuous and connects tion -being preferably held in position by stitches 22 in the same manner as shown for the fold 2|.

If desired, the section 38 may be formed separate being completed by connecting the section withv the body of the pad by stitches 22.

An alternative form of pad holder is shown in Fig. 7 as comprising a member 39 mounted in and fastened to the journal box I9 by a plurality of bolts 40. The top of the member 39 is forked with its forked portions respectively forming eyes 4|, positioned between the middle and the end bands 29 carried by the bar 23, and in alignment with the sockets provided by such bands. The member 39 is connected with the bar 23 by a pin 21 extending through the eyes 4| and the sockets provided by the bands 29, the pin being held in position and removable in the same manner as described for the construction shown in Figs. 1 to 5. The member 39 is resilient and is so positioned that it constantly forces the bar 23 toward the whereby the pad has an even journal contacting" surface and uniform capillarity for delivery of lubricant uniformity overa `journal. The improvements also include a fabric cover for the pad other than the journal contacting area, the cover being adapted to prevent grit or foreign particles in the lubricant from reaching the rovings or capillary material whereby it is unnecessary to renovate the pad except at long intervals and such renovation is easily accomplished when it becomes necessary.

Having thus described the invention, it is obvious that various immaterial modifications may be made in the same without departing from the spiritof the invention; lhence I do not wish to be understood as limiting myself to the exact form, construction,- arrangement and combination of parts herein shown and described or uses mentioned.

What I claim as new and desire to secure by Letters Patent is:

1. A journal lubrication pad of the kind described comprising an absorbent body of material having capillary properties, a fabric cover encasing the body and providing a gap leaving an area of one side of the body uncoveredvadjacent its top, a section of said body being fastened to the side of the pad opposite said uncovered area, and means for attaching said section to a pad holder with said uncovered area pressed against the journal.

2. A lubrication pad of the kind described comprising an absorbent body consisting of a plurality of laterally juxtaposed rovings having capillary properties, said body being quilted by longitudinal lines of stitches positioned between said rovings and a. plurality of ltransverse lines of stitches interwoven with said longitudinal lines, fabric sheets forming a cover for said body and fastened thereto by stitches, there being a gap in one of said sheets adjacent the upper end of the pad through which said rovings are exposed, the end portionl of the pad beyond said exposed rovings being doubled back and fastened to the pad on the side opposite the exposed rovings, and means for attaching the folded portion of the pad to a pad holder with said folded portion pressed towards and said exposed rovings pressedagainst the journal. .Y

3. In a journal lubricator, a pad composed of an absorbent body formed of lengths of rovings extending lengthwise of the pad and stitched together, a textile fabric covering, enclosing the rovings and fastened thereto, there being a gap in the covering adjacent the upper end of the pad through which the rovings are exposed, the end portion of the pad beyond said exposed part being doubled back upon the pad and secured thereto, and means for attaching the pad to a pad holder.

. EDITH W. JONES. Administratriz of Estate of Aldred J. Jones, De-

ceased.

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