US1740565A

US1740565A - Side frame

Info

Publication number: US1740565A
Application number: US344451A
Authority: US
Inventors: Donald S Barrows
Original assignee: Symington Co
Current assignee: Symington Co
Priority date: 1929-03-05
Filing date: 1929-03-05
Publication date: 1929-12-24
Anticipated expiration: 1946-12-24

Description

Dec. 24, 1929. a BARRQWS 1,740,565

5 IDE FRAME Filed March 1929 Patented Dec. 24, 1929 UNITED STATES PATENT OFFICE DONALD S, BARR-W8, OF ROCHESTER, NEW YORK, ASSIGNOR TO THE SYMINGTON COMPANY, on NEW YORK, n. Y.,

A COREORATION OF MARYLAND SIDE FRAME Application filed March 5,

This invention relates to side frames for railway car trucks and, more particularly, to a construction involving improvement in the strength of connection between such frames of the cast type and integral journal boxes at the ends thereof.

The principal object of my invention, generally considered, is to improve the general appearance of cast metal side frames integrally formed with journal boxes at the ends and consolidate in the main core the strengthening ribs or brackets generally provided adjacent the junctions between the frame and boxes, thereby eliminating external reinforcing flanges at said junctions.

Another object of my invention is to improve the connection between integral journal boxes and their associated frames by widening and downwardly convo'luting the web portions of the tension member to provide a hollow bracket between said member and the adjacent side wall of the box, the lower edge of said bracket preferably extending to the side wall of the box and meeting said wall adjacent the lower end of the corresponding brass lug, the side walls of said bracket being flared .upwardly away from each othert-o form a construction V shape in crosssectiomthe flanges of saidmember at the widened portion of the web extending thereabove being maintained at a normal distance with respect to one another and joining with bifurcated web portions disposed in the normal plane of the web of the tension member.

A further object of my invention is to provide a side frame with integral journal boxes, the roofs of said boxes being preferably beveled rearwardly of the front flange of the tension'member with the web of the member sloping generally in line with the beveling of the journal box roof, the connection between the tension member, or junction between said tension and compression members, and journal box being reinforced by increasingthe width of the tension member web and providing a hollow convolution therebeneath connected to the side edges of said increased portion, the flanges of said member extending upwardly from that portion of the web 1929. Serial No. 344,451.

in the normal plane thereof and disposed at a normal distance with respect to one another.

A still further object of my invention is to provide a side frame and integral journal box construction in which the connection with the box is rigidified and all strengthening ribs or brackets consolidated in the main core, thereby eliminating external flared flanges at the junction of the tension member and box, this being accomplished by bifurcating and spreading the web of .the tension member at the junction with the box and forming a V shaped hollow reinforcing bracket therebeneath connected to the side edges of said web at the spread portion thereof and gradually tapering away from said box to finally merge into :the normal portion of said web, the side flanges of said tension member extending upwardly from the web thereof but being und-iver-te'd from their normal position.

Other objects and advantages of the invention relating -.to the particular arrangement and construction of the various parts will become apparent as the description proceeds.

Referring to the drawing illustrating my invention, the scope whereof is defined by the appended claims.

Figure 1 is a fragmentarysectiona'l view of one end of a side frame and integral journal box embodying my invention, said section being taken on the line l1 of Figure 3 looking in the direction o-f-the arrows.

Figure 2 is a transverse sectional view on the line 2-2 of Figure l looki-ngin the ,direction of the arrows.

Figure 3 is a fragmentary horizontal sectional view on the line 33 of Figure 1 looking in the direction of the arrows.

Figure 4 is a fragmentary longitudinal sectional view on the line 14 of Figure 3 looking in the direction of the arrows.

Figure5 is a fragmentary-longitudin a1 sectional view on the line 5&5 of Figure 31001:- ing in the direction of the arrows.

Figures '6 and 7 are fragmentary transverse sectional views on the correspondingly numbered lines of Figure 1 looking in the direction ofsthe arrows.

Referring to the drawing in detail, like parts being designated by like reference char acters, there is shown a side frame 1 of the cast type comprising a tension member 2 and a compression member 8 united at their ends and to integrally connected ournal boxes 41, only a portion of one of which is illustrated. Although only a fragmentary portion of the frame is shown, it will be understood that the construction is an improvement of the type of frame illustrated and described in the I-Iankins Patent No. 1,637,696 of August 2, 1927, and that said frame has a compression member and a tension member spaced at intermediate portions thereof by struts or bolster guide columns, the tension and compression members converging at their endsand united together and to integral journal boxes. As those portions of the frame, not illustrated, are of well known construction, it is not deemed necessary to show any more than the novel features which will now be pointed out.

In the Hankins patent above referred to, the connection between the tension member and each box was reinforced by a pair of connection between the tension member 2,

which is preferably channel shape in cross section and comprises a lower web 5 and upstanding flanges 6, and the journal box 4, is reinforced by a hollow bracket 7 approximately V shape in cross section as illustrated particularly in Figure 2. Said bracket ispreferably formed beneath a widened or expanded portion 8 of the web 5, said web being preferably extended to meet the roof 9 of the journal box at the junction with the inner brass lug 10, said web not only being increased in width, but preferably increased in thickness to a maximum at the junction 11 with the roof of the box to compensate for the aperture 12 above the hollow bracket 7 which provides for core removal. The bracket 7 is preferably formed by downwardly curving the web of the tension member to meet the side wall of the box at approximately or slightly below the lower end of the brass lug 10, the side walls of said bracket portion flaring upwardly and outwardly to the side edges of the flared or expanded portion 8 of the web where they are curved or fllleted at the junctions with said web portions. The bracket or convolution 7 preferably tapers or decreases away from the box not only in depth but also in width to finally merge into the normal web portion 5 of said tension member, as illustrated particularly in Figures 1, 3 and 4.

The journal box is preferably beveled at its upper corners rearwardly of the front flange 6 of the tension member or that portion of the frame after the union between the tension and compression members, said beveling being preferably produced by sloping the roof of said box downwardly and outwardly from the planes of the inner walls of the brass lugs, only one of which is illustrated, said sloping preferably corresponding with the normal or general inclination of the web 5 of the tension member 2, so that the tension member web forms, in effect, a continuation of the sloping portion of the roof at the adjacent side wall of the box.

From a consideration of Figures 2 and 3 particularly, it will be seen that the flanges 6 of the tension member are not diverted or flared away from one another to correspond with the flaring or widening of the web, but are extended over said web portion and the roof 9 of the box while normally disposed with respect to one another. From a consideration of Figure 2, it will be seen that the flanges meet the normally disposed web portion 8 inwardly of the junction with the hollow bracket 7 and outwardly of the inner edges of said web portion defining the aperture 12 therethrough. It will also be noted that although the web portion is thickened between the flanges 6 adjacent the aperture 12, yet those portions of the web 8 beyond the flanges 6 are of normal thickness, that is, they correspond with the thickness of the flanges and the depending convolution or bracket portion 7. It will be seen that those portions of the widened web 8 forwardly of the outer or front flange 6 of the tension member are slightly offset upwardly, as indicated at 13, with respect to the normal web portion on account of the box forwardly of said front flange 6 of the tension member not being beveled like the rearward portion of the box, as illustrated particularly in Figure 1, so that said web portion 12 is extended to meet the upper inner corner of the box at a portion thereof where the roof and inner side wall meets at an angle of 90 degrees with only the normal fillet therebetween. Except for this difference and the fact that the side walls of the box forwardly of the longitudinal center line are tapered slightly and then disposed slightly closer together, the construction of the bracket 7 on opposite sides of said center line may be as nearly symmetrical as possible.

From the foregoing description taken in connection with the accompanying drawing, it will be seen that I'have improved the construction, strength and general appearance of east side frames with integral journal boxes by reinforcing the connection between the tension member and box by means of a bracket formed as an integral depending convolution or corrugationgenerallyV shape in section beneath the normally disposed web portion of said tension member, said web portion thereabove being widened and joining the sides of said bracket, the lower edge of said bracket preferably meeting the adjacent wall of the box adjacent the bottom of the corresponding brass lug. The convolution or hollow connecting bracket is preferably wider than the normal width of the tension member at the unction with the box, but tapers or decreases in width away from said box to gradually merge into the normal web portion of the tension member. The flanges of the tension member or the side walls of the frame at the junction between the tension and compression members are normally disposed with respect to one another and are notdiverted outwardly to correspond with the flaring or increase in width of the tension member web. The aforedescribed construction results in consolidating in the main core all strengthening ribs or brackets, thereby facilitating the manufacture of the frame.

Although a preferred embodiment of my invention is illustrated and described, it will be understood that modifications may be made therein within the spirit and scope of the appended claims.

Having now described my invention, I claim:

1. A truck side frame comprising a tension member, a compression member, said members united together at their ends, a journal box with brass lugs integrally united to each end of the frame, said tension member being channel shape in cross section with the web of the channel sloping generally in the direction of the upper inner corner of the adjacent brass lug, the connection between said tension member and box being rigidified by widening the web of said member and clownwardly convoluting it to the full width thereof at said widened portion and extending it to join with the adjacent side wall of the box, the flanges of said tension member being maintained the normal distance apart to the normal plane of said web where they are joined to the convoluted portion of said web by connecting webs disposed in the normal plane of the web of said member and meeting the webs inwardly of the junctions with the convoluted widened portion thereof.

2. A truck side frame comprising a tension member, a journal box with brass lugs integrally united to an end of said member, said tension member being channel shape in cross section with the web of the channel sloping generally in the direction of the upper inner corner of the adjacent brass lug, the connection between said tension member and box be ing strengthened by widening and downwardly convoluting the entire web of said tension member and extending it to join the side Wall of the box, the flanges of said member extending at the normal distance therebetween to the normal line of the web of said member where said flanges are extended outwardly in the normal plane of the web to join the side edges of the convoluted portion of said web.

3. A truck side frame comprising a tension member, a journal box with brass lugs integrally united to one end of said member, said member being channel shape in cross section, the roof of said box being beveled rearwardly of the front flange of said tension member from the transverse plane of the inner side of the inner' brass lug, the web of the tension member sloping generally in line with the corresponding beveled portion, the connec- "tion between said tension member and box being reinforced by flaring the web of said member in width at the junction with said box and forming a downwardly convoluted branch thereof generally V shape in cross section, the side edges of said branch meeting the side edges of the normally positioned web at the widened portion thereof, the flanges of said tension member continuing over the widened portion of the web and being normally disposed with respect to one another.

4. A truck side frame comprising a tension member, a journal box integrally united t-o'an end of said member, the connection between said tension member and box being rigidified by widening and downwardly convoluting a lower web portion of said tension member, said convolution at the widened portion thereof extending to the side edges and tapering or decreasing away from said box to merge into the normal plane of said web, said web being bifurcated above the downwardly convoluted portion and continued toward the box in the normal plane of said web and joined with the side edges of said downwardly convoluted portion, the flanges of said member being continued over the web and roof of the box while normally disposed with respect to one another.

5. A truck side frame comprising integrally formed tension and compression members and journal boxes at the ends of said members, the junctions between said boxes and frame being reinforced by providing hollow convolutions bulging downwardly and outwardly from the web of said tension member at the junctions with the boxes and tapering away from said boxes to merge into the normal plane of said web, said web being bifurcated and continued in the normal plane thereof above said convolutions to join the roofs of the boxes, the flanges of said member extending upwardly from the normally disposed web portion and normally spaced with respect to one another.

6. A truck side frame comprising a tension member formed U shape in cross section with a lower web and upstanding flanges, a journal box integrally connected to one end of said frame, the junction between said frame and box being rigidified by increasing the width of said web and forming therebeneath a depending V shaped convolution connected to the side edges thereof at the widened portion and tapering away from said box to finally merge into the normally disposed web portion of the tension member, the'normally disposed web portion of said tension member being apertured above said convolution to permit core removal.

7. A truck side frame comprising integrally formed compression and tension members and journal boxes at the ends of said members, the junctions between said boxes 'and frame being reinforced by increasing the width of the tension member and providing therebeneath hollow convolutions meeting the side edges of the widened portion of the web and tapering away from the box to gradually merge into the normal disposed portion of said web, said normally disposed portion being apertured above said convolutions to provide for core removal with the flanges meeting said web portions at the widened portions thereof intermediate the ex treme outer edges and the inner edges thereof at the apertures.

In testimony whereof I affix my signature.

DONALD S. BARROWVS.