US2859073A - Railway journal bearing - Google Patents

Description

| EQFURNISS RAILWAY JOURNAL BEARING 2 Sheets-Sheet 1 Filed Nov. 12, 1954 INVENTOR Mgzz-zwrxvwkma;

I "'I" ATTORNEY Q Q m Nov. 4, 1958 L. E. FURNISS RAILWAY JOURNAL BEARING 2 Sheets-v-Sheet 2 Filed Nov. 12. 1954 lllllll nlllll- Illllnlll.

ATTORNEY RAILWAY JOURNAL BEARING Loree Elwyn Furniss, Groveport, Ohio, assignor to The Buckeye Steel Castings Company, Columbus, Ohio Application November 12, 1954, Serial No. 468,371

2 Claims. (Cl. 308-53) The present invention relates to journal boxes for railway rolling stock and more particularly pertains to the bearing structure within the journal box providing improvements in the cooperation of the bearing member with the journal and with portions of the journal box structure.

The bearing structures employed in railway journal boxes in the past have a disadvantage in that inward axial movement of the journal with regard to the journal box is limited by means of. lateral lugs engaging the brass stops within the journal box. In other words when the end collar .on the journal contacts the outer end of the bearing member it moves inwardly until the lat- I erally extending lugs on the bearing member engage the brass stops. In service such inward movement of the journal with respect to the journal box is often violent enough to cause the laterally projecting lugs of existing bearing members to be broken off creating a dangerous condition that has been corrected only by the application of a new bearing member carrying proper lugs.

It is an object of the invention to provide means adjacent the inner end of the bearing member for abutting an end wall of the journal box when there is an inward axial movement of the journal with respect to the journal box to efiectively arrest such relative movement of the journal with reference to the box without the necessity of providing side lugs on the brass or bearing member.

Another object of the invention is to provide means at the inner end of the brass or hearing member in the form of a flange which overlaps portions at the inner end of the journal box and to provide a reinforced end wall in this area for effectively arresting inward movement of the bearing member as a result of inward axial movement of the journal with regard to the journal box.

A still further object of the invention is to provide an improved bearing assembly for a railway journal box which will reduce the probability of the brass riding upwardly on the journal and more effectively preventing inward endwise movement of the journal with respect to the journal box and to provide an assembly which will fit existing journals.

Other objects and features of the invention will be appreciated and become apparent to those skilled in the railway art as the present disclosure proceeds and upon consideration of the following detailed description and the accompanying drawings wherein an'embodiment of the invention is disclosed.

In the drawings:

Fig. 1 is an end view of a journal box and bearing structure exhibiting the invention.

Fig 2 is a sectional view taken on the line 22 of Fig. 3.

Fig. 3 is a longitudinal sectional view taken on the line 33 of Fig. 1.

Fig. 4 is an end elevational view ofthe bearing member or brass and Fig. 5 is a plan view.

Fig. 6 is a plan view of the wedge or. liner and Fig. 7 is an end elevational view.

United States PatentO 2,859,073 Patented Nov. 4, 1958 I journal box in the usual manner.

An axle for one pair of wheels is shown at 19 (Fig. 3) having a cylindrical journal 21 at the end thereof which is accommodated within the journal box. The axle 19 extends through an opening 22 in a rear wall 23 of the journal box and through an opening 24 in the adjacent rear wall 26. The openings 22 and 24 are in horizontal alignment and the area of the opening 24 is shown in Fig. 2. The free or outer end of the journal carries an integral collar 27. The space between the lower wall 11 of the journal box and the journal 21 is adapted to accommodate packing material such as waste which carries lubricant to the cylindrical surface of the journal 21. An oil and dust seal (not shown) is provided in the space 25 between the walls 23 and 26 which fits about the enlarged cylindrical portion 31 of the axle. The structure thus far described is of conventional construction. .The invention pertains to the provision of a novel bearing member or brass 32 in association with the journal box and the journal 21. The structural characters of the bearing member 32 is best shown in Figs. 4 and 5 and it includes a body portion having an under concave surface 33 which extends throughout the length of the hearing member and spans one hundred and eighty degrees. This concave surface thus contacts the entire top half of the journal 21 as shown in Figs. 1 and 2. Any tendency of the journal 21 to move sidewise with respect to the journal box 10 in the direction of the double arrows 34 of Fig. 1 will cause the bearing member or brass 32 to move with the journal because it spans one-half of the journal. Thus there is less tendency for the bearing member to ride upwardly on the journal than is the case with bearing members which span less than the top half portion of the journal. Any movement of the journal 21 in the direction of the double arrows 34 in Fig. 1 moves the bearing member 32 in the same direction until the vertical side surface 36 or 37 of the bearing member engages the brass stop 38 or 39 of the journal box.

A wedge or liner 41 is interposed between the top of the bearing member 32 and the top wall 16 of the journal box. The wedge 41 is provided with downwardly sloping surfaces 42 and 43 which fit along complementary inclined surfaces 44 and 46 on the bearing member 32. The wedge is provided with straight vertical side surfaces 47 and 48 which engage the brass stops 38 and 39 and serve to limit sidewise movement of the wedge and hearing member '32 and the journal relative to the journal box.

A further feature of the bearing structure includes an upstanding flange 51 carried by the inner end of the bearing member 32. This flange includes ear portions 52 and 53 which overlap the rear wall 26 in the areas 54 and 56 (Fig. 2) above the opening 24. The rear wall 26 in the area above the level 57 is of greater thickness tlhan the wall 26 below the center of the axle as shown in An inward movement of the axle and the journal 21 with reference to the journal box 10 causes the collar 27 of the journal to contact the outer end 59 of the bearing member 32. The bearing member can move inwardly relative to the journal box only until the inner end face 61 of the flange 51 contacts the rear wall 26. The overlapping or contact area of the two ear portions 52 and 53 of the flange is shown by the heavy cross hatched areas 54 and 56 in Fig. 2. The rear wall 26 departing from the spirit and scope of the invention as set forth in the appended claims.

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

1. A bearing and journal box assembly for a railway truck comprising, a journal box having a rear wall and a top wall, side walls on said journal box, a brass stop on each side wall presenting substantially parallel vertical inner faces, said rear wall having an arcuate opening therein, an axle extending through said opening and having a journal positioned within the journal box, a bearing member having a concave surface fitting about and engaging an upper portion of said journal, substantially parallel vertical side surfaces on said bearing member abutting said inner faces, said vertical side surfaces extending throughout the length of and constituting the lateral extremities of said bearing member, a wedge between said bearing member and the top wall of the journal box, an upwardly extending flange at an inner end of said bearing member having portions of suflicient height to abut said rear wall above the perimeter of said opening and thereby limit inward movement of the hearing member with respect to the journal box, and said vertical inner faces extending below the level of the axis of said journal with each face terminating in a downwardly facing surface.

2. A bearing and journal box assembly for a railway truck comprising, a journal box having a rear wall and a top wall, side walls on said journal box, brass stops formed from portions of said side walls presenting substantially parallel vertical confronting faces throughout a central portion of the journal box, said rear wall having an arcuate opening therein, an axle extending through said opening terminating in a journal within the journal box, a bearing member having a concave surface fitting over the journal, substantially parallel vertical side surfaces defining the lateral extremities of the bearing member throughout the length thereof, said surfaces being in abutting relationship with said faces, a wedge between said bearing member and the top wall of the journal box, an upwardly extending flange at an inner end of said bearing member having ear portions in abutting relationship with said rear wall above said opening to thereby limit inward movement of the bearing member with respect to the journal box, and said vertical confronting faces extending below the lower extremities of said bearing member with each face terminating in a downwardly facing substantially horizontal surface.

References Cited in the file of this patent UNITED STATES PATENTS 477,768 Miller June 28, 1892 846,397 Clamer et al Mar. 5, 1907 1,054,189 Ekstedt Feb. 25, 1913 1,179,199 Lorenz Apr. 11, 1916 1,315,007 Campbell Sept. 2, 1919 1,361,000 Blain Dec. 7, 1920 FOREIGN PATENTS 358,616 Germany Sept. 12, 1922

Images