US1868561A - Driving shoe box oiling mechanism - Google Patents

Description

July 26, 1932. H. G. BECKER DRIVING SHOE BOX OILING MECHANISM Filed Oct. 26. 1929 3/ 5 x9 M 29 a v T41-) M w/ w m w Patented July 26, 1932 PATENT OFFICE HARRY G. BECKER, OF ALBANY, NEW YORK DRIVING SHOE BOX OILING MECHANISM 5 It is a general object of the present invention to provide a novel and improved automatic lubricator for locomotive driving boxes.

One of the important features of the in- 1'0 vention resides in the provision of lubricant receptacles encompassed within the outline of the driving box which automatically supply a regulated quantity of lubricant to the faces of the driving box which engage the wedge,

the shoe and the hub thrust face.

Another important feature of the invention resides in the arrangement of conduits within the driving box and lubricant grooves on the rubbing faces arranged to distribute a regulated quantity of lubricant from suitable reservoirs carried by the box in order that there may be no unnecessary wear of the various rubbing faces of the driving box.

Other and further objects and features of 5 novelty of the invention will be apparent to those skilled in this particular art upon a consideration of the accompanying drawing and following specification. Although the invention is particularly disclosed in con- 30 nection with one well known type of driving box, it is to be understood that with slight modifications which fall within the scope of the appended claims, it can be adapted to any of the various driving boxes of present 35 locomotive practice.

In said drawing:

Figure 1 is a vertical longitudinal section through the center transversely of a driving box;

l Figure 2 is an elevation of one of the gibcontacting wearing faces of a driving box; and

Figure 3 is a horizontal section on line 3-3 of Figure 1.

L5 The driving boxes of locomotives are subject to considerable wear in their movement in the pedestal jaws and particularly on the faces which engage the shoe and wedge, and it is highly important that these sliding faces i0 be amply and continuously lubricated to pre- Application filed October 26, 1929. Serial No. 402,724.

vent undue wear and to promote easy riding. The outer face of each driving box is subject to lateral thrust from the hub face and serves to laterally position the drivers. It is also essential that this face be properly lubricated in order that wear may not spoil the box, materially shorten its life or permit of excess lateral play of the drivers. The present invention contemplates a single lubricating means to lubricate both the hub face and the sliding faces of locomotive driving boxes and to provide this lubricant entirely independently of the main journal lubricating means.

Referring to the drawing in which is disclosed one conventional form of pedestal and driving box there is shown at 10, a main or side frame of a locomotive having the pedestal 11 provided with the jaws 12 and 13 between which are received the driving box generally indicated by the reference character 14.

This driving box comprises a heavy block of suitable metal recessed on the under surface to provide an inverted U-shaped opening through which the journal of the axle 15 is passed to be received against the crown brass 16 recessed in the driving box and forming the main bearing for the journal of a driving axle. This bearing between the journal and the crown brass is lubricated by means of the oil cellar 17, which is a box or receptacle for lubricant fitted in the space beneath the journal and filled with suitable packing as at 18, saturated with lubricant. The packing is held against the under face of the journal by means of the spring 19 and the lubricant is carried around between the journal and the crown brass as the axle rotates.

The fore and aft faces of the journal box are vertically channelled as at 19 to provide the side flanges 20 which cooperate with the side faces of the jaws to prevent lateral movement of the driving box. On the one jaw is provided a driving box gib 21 generally referred to as the shoe to provide a suitable lining between the jaw 12 and the walls of the recess 19, and the main portion 22 of this shoe is of uniform thickness to conform to 3 driving box.

the vertical faces of the jaw and the driving box. The other aw 13 has its inner face inclined as at 24 and the driving box gib has its main portion 25 tapered as shown in Figure 1 to fill the space between the vertical side of the box and the inclined jaw face. Vertical adjustment of this gib, which is commonly called the driving-box wedge, compensates for wear on the jaws and driving box sliding faces so that there is no undue fore and aft movement of the driving box in the jaw. V

The springs, equalizersor other linkage for supporting the framefrom the drivers, bear directly on or are' attached to a hanger orother member 26 which itself rests on the driving box saddle 27 formed on the upper surface'of the side flanges 20. There is one of these on each side of the frame to balance the load on the driving box and prevent canting.

Between the flanges 20 the top surface of the box is recessed as shown at 28 and then is provided with further shallow recesses 29 and in these recesses are received the lubricant reservoirs 30 in the form of irregularly shaped cups adapted to fit the shape of the recess. These cups may be made of pressed or cast metal and contain the main lubricant chamber 31 and theplurality of lubricant wells 32, 33 which are of substantially the same depth as the chamber. All of these compartments are open at the top and covered by a suitable lid 34 spaced from their tops. Lubricant, preferably oil, is delivered by capillary attraction from the chamber 31 into the wells by means of suitable wool wicking 35 and the quantity of oil delivered to each well is regulated by the number of wicks connecting it to the oil chamber.

The two oil cups, as will be seen, are spaced on opposite sides of the saddles 27 and each lubricates the driving box gib on its side of the journal as well as the hub face 36 of the This is done by providing bores in the driving box to receive oil conduits. Thus from the well 32 of each oil reservoir is seen to lead the conduit 37 which'ends just short of its corresponding gib engaging face as at 38. Here the conduit communicates with the upper part of a series of oil channels 40 in the face so that oil is supplied over a large area of the gib with which the face engages by means of the distributing channels.

Each well 33 has emerging from it a conduit 41 leading to the hub engaging face 36 of the driving box where it communicates with two channels 42, 43 respectively in this face so that oil is well distributed over this face, both on the end of the crown brass and on the box face about it, which engages the hub thrust face, thus adequately lubricating the surfaces to prevent wear.

It should be noted that adequate'lubrication is provided for all of the surfaces of the driving box which receive what may be considered minor friction, as distinguished from the major friction between the journal and the crown brass, which bearing has its own independent lubricating system. It should be noted particularly that the oil receptacles are readily available for filling and that they hold a liberal quantity of lubricant and supply it in regulated quantities to the surfaces continuously. The conduits which conduct the oil from the. reservoirs also function to maintain the reservoirs in position in their recesses since the conduits extend at a sharp angle to the line of movement necessary to remove the reservoirs from their receptacles.

Having thus described the invention, what is claimed as new and desired tobe secured by Letters Patent is:

1. In a locomotive havinga pedestal provided with jaws, a wedge and shoe lining said jaws, a driving box in said pedestal having side faces engaging said wedge and shoe, a driving wheel having an axle journaled in said box and a hub engaging the hub face of said box, said box having a pair of recesses in the top surface below the saddle and between it and the side faces, the combination of an oil cup in each recess entirely below the saddle, an oil reservoir in each cup, a well in each cup, means to supply oil in regulated quantity from the reservoirs to the wells, each cup having a pair of'conduits entering the lower portion of the well to receive oil therefrom, bores in said box to receive saidconduits, one opening on a side'face and one on said hub faceand grooves in said faces below the outlets of the conduits thereto and in communication therewith.

2. The combination with a locomotive driving box having a shallow recess in the upper surface thereof, of a lubricant'holding cup set in said recess anda' conduit passing through said box and engaging said cup laterally.

In testimony whereof I hereunto aflix signature.

G. BECKER.

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