US1740562A

US1740562A - Side frame

Info

Publication number: US1740562A
Application number: US339906A
Authority: US
Inventors: Donald S Barrows; Byers W Kadel
Original assignee: Symington Co
Current assignee: Symington Co
Priority date: 1929-02-14
Filing date: 1929-02-14
Publication date: 1929-12-24
Anticipated expiration: 1946-12-24

Description

DCC- 24, 1929- D. s. BARRoWs ET Al..

SIDE FRAME Filed Feb. 14, 1929- Patented Dec. 24, -1929 UNITED STATES PATENT OFFICE DONALD S. BARROWS, OF ROCHESTER, NEW YORK, AND BYERS W. KABEL, OF BALTI- MORE, MARYLAND, ASSIGNORS T0 THE SYMINGTON COMPANY, OF NEW YORK,

N. Y., A CORPORATION OF MARYLAND SIDE FRAME Application led February 14, i929. Serial No. 339,906.

,This invention relates to side frames for railway car trucks and, more particularly. to strengthening the connection between said frames and journal boxes integrally formed therewith.

rlhe principal object of our invention, generally considered, is to improve the general appearance of cast steel side frames with integral journal boxes and eliminate the separate core heretofore used at the junction between the journal boxes and side frames and improve the strength of connection between such frames and their journal boxes.

Another object of our invention is to improve the connection between integral journal boxes and their associated frames by downwardly convoluting the web of the tension member of the frame to provide a hollow bracket between said member and the adjacent side wall of the box, the lower edge of said bracket being preferably curved and the sidewalls flaring upwardly and outwardly `but maintained of a width less than the distance between the flanges of the tension member.

'A further object of our invention is to provide a side frame-with integral journal boxes, the roofs of 'said boxes being preferably beveled rearwardlyy of the front flange of the tension member with the web of the tension member forming, in effect, a continuation of the corresponding beveled portion of the j ournal box roof, the connection between the tension member and ournal box being reinforced byan integral pending convolution of rounded triangular form maintained of less width than the tension member web with the remainder of the web extended to directly join the roof of the box, said roof at the junction being of increased thickness and gradually tapering to normal thickness at the other side of the box for efficiently distributing forces from the tension member to the roofof the box.

A still further object of our invention isto provide a side frame and integral journal box construction in which the connection with the box is rigidified, and the formerly used separate core obviated, by a depending hollow corrugation in the web of the tension member of less width than said web, the remaining portions of said web being iiared outwardly beyond the flanges'of said tension member and united with the roof of the box.

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 drawings illustrating our invention, the scope whereof is defined by the appended claims.

Figure l is a fragmentary sectional view of one end of a side frame and integral journal box embodying our invention, said section being taken on the line 11 of Figure 8 looking in the direction of the arrows.

l Figure 2 is a fragmentary transverse sectional view on the line Qf-EZ of Figure l looking in the direction of the arrows.

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

Figure 4; is a longitudinal sectional view on the line 1 4 of Figure 3 looking in the direction ofthe arrows.

Figure 5 is a fragmentary end view of the frame and associated journal box particularly showing the construction of the brass lug.

Figure 6 is a fragmentary sectional view corresponding to Figure l showing the j unction between the tension member of the frame and journal box in perspective.

Referring to the drawings in detail, like parts being designated by like referencecharacters, there is shown aside frame l of the cast type comprising a tension member 2 and a compression` member 3 uniting at their ends and to integral journal boxes 4, only 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 Hankins Patent No. 1,637,696 of August 2, 1927, and said frame has a compression member and a tension member spaced at intermediate portions by struts or bolster guide columns, the tension and compression members converging at their ends and united together and to integral journal boxes. Inasmuch, however, as the portions of the frame not illustrated are of well known construction, it is not deemed necessaryv to show any more than just the novel features which will now be pointed out.

In the Hankins patent heretofore referred to, the connection between thetension member and journal box was reinforced by a pair of web portions spaced from the junction between the web of the tension member and box and from each other, thereby necessitating a separate core/ In the present-case,lthe'con nection 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 bracket 7 of hollow rounded triangular form preferably constructed as a convolution or depending corrugation in the web 5 of the tension member 2. Said bracket 7 is preferably of less width than the web 5 of the tension member and the lower edge thereof is preferably rounded, as ,indicated at 8, and of approximately semi-circular form, the sides 9 being preferably thinner than the curved portion 8 and flaring outwardly and upwardly to join .with the remaining portion 10 ofthe web'5 of thev tension member, which portion is preferably thickened as illustrated particularly in Figure 2, to compensatefor the convolution in said web, vand continued outwardly and upwardly to join with the roof .A 11 of the box preferably at the junction with the inner or adjacent brass lug 1 2. Said roof yatthe junction with the thickened web 1() of the tension member is preferably of corres7 pending thickness, as indicated at 13, and tapers outwardly from a maximum to normal width adjacent the other side of the box, as

shown most clearly in Figure 1.

The journal box is preferably beveled at its upper corners rearwardly of the frontiiange of the tension member, 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

12 and 14, said slope preferably correspond-V ying with the general inclination of the web 5 ofthe tension member. 2 so that said tension member forms in effect a continuation ofthe sloping portion of the roof at the adjacent side walls of the box.

For further reinforcing thelconnection between the frame 1 or the` tension member 2 thereof and the journal box 4, the web 5 of the tension member is preferably flared beyond although of normal thickness rather than in- .rear flange 6 ofthe tension member.

Tha/

brass lugs

12 and 14 are Vof normally vless width than the tension member 2 or the distance between the flanges 6 thereof, but for increasing the strengtlr of the box and the connection with the frame aswell as improving the appearance, the

walls

18 and 19 of said brass lugs are preferably flared outwardly and upwardly as shown particularly in Figure 5 for the brass lug 14. The lug 12 is preferably made of similar contour so that the green sand core used in making the journal box may be symmeti ical and the same atboth ends of the frame. On account of the beveling 'of theV roof of the box, a similar beveling 4occurs at the upper ends of the brass lugs as volution or corrugation of rounded trianguv lar -form in the web of the tension member, the lower edge of said convolution preferably meeting the adjacent wall-of the box at the bottom 'of the corresponding brass lug, said convolution or hollow connecting bracket being of a width generally less than the width of the tension member and approximatingv that of the brass lugs, the sides of said bracket fflaring upwardly and outwardlyV from a substantially semi-circular lower edge, and the brass lugs providedwith walls flaring outwardly to approximately or slightly less than the distance between the flanges of the tension member or the side walls of said frame at the junction between the tension andcompression members. The mner contour of the brass lugs is preferably uniform to make it possible tov l use symmetrical journal box cores, thereby making the cores the same for both journal boxes, the outer contour, however, being necessarily different because of therjunction with the tension member. The core forthe reinforcing bracket and correspondingbrass lug is unitary with that for the tension member,-

thereby avoiding the separate core heretofore usedV for constructing the reinforcing web or webs between the bottom of the tension member andthe adjacent side wall of the box. `The tension member webon either side ofthe reinforcing bracket orconvolution is preferably thickened to compensate for the divergence of the central portion of said web, and the roof of the journal box is correspondingly ,thickened and gradually tapered outwardly 'to normal thickness adjacent the other side of the box. The remaining portion of the tension inember web above the convolutin or depending reinforcement therein is not only thickened towards its junction with the vroof of the box, but is preferably extended laterally beyond the llanges of the member to provide transverse gusscts of normal thickness between the sides of the tension member and the roof of,y

the box at the junction with the inner side wall thereof: Although a preferred embodiment of our invention is illustrated and de scribed, it will be understood that modifications may be made therein within the spirit and scope of the appended claims.

Having now described our invention, we clairn':l

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 inv 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 journal box being rigidified by a hollow curved bracket formed as a down-y ward convolution of the web of the tension f.\member, said connection beingfurther reinforced by gussets extending laterally beyond the flanges of the tension member and joining with the roof of the box.

2. A truck side frame comprising a tension member, a journal box with brass lugs integrally united to an end of sai'd 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 being. strengthened by a hollow bracket depending from theweb of the tension member with the lower edge curved approximately semi-circular andthe sides Haring outwardly and upwardly to join with the normal web of the tension member.

3. A truck side frame comprising a 'tension member, a journal box with brass lugs inte` sponding beveled portion, the connection between the tension member and box being rey inforced by a downward convolution in the web of the tension member, said convolution 4. A truck side frame comprising a tension member,y a journal box with brass lugs integrally united to an end of said member, said connection box being rigidified b a downward convolution in the web of t e tension member approximately the width of the adjacent brass lug, the remaining portion of the tension member web being ared outwardly beyond the flanges to the adjacent portions of the roof of said box' as external gussets.

5. yA truck side frame comprising integrally formed tension and compression mem bers and journal boxes at, the ends of said members, said journal boxes 'having hollow inwardly extending brass lugs generally narrower than the width of the tension member with their side walls flared outwardly to approximately the width of said tension member, the inner surfaces of the brass lugs on opposite sides of the journal box being correspondingly formed to provide for a symmetrical journal box core.

6. A truck side frame comprising a tension member, a journal 1box with brass `lugs integrally formed at an end of said member, said tension member having a lower web and upstanding flanges, said langes being spaced a greater distance than the normal distance between the side walls of the brass lugs, the upper portions of said side walls aring out wardly to approximately the width of the tension member, the roof of said box being beveled between the flanges of said tension member from the inner walls of the brass lugs downwardly and outwardly to correspond with the general slope of the tension member web at the junction between said tension member and journal box.

7 A truck side frame comprising a tension member, a journal box integrally united to the end of said member, said member havin a lower web and'upstanding flanges, said we joinin the roof of the journal box, the thickness o said journal box roof at said junction being a maximum and gradually tapering outwardly therefrom to normal thickness at the outer side of said box. f

In testimony whereof we aix our signa-l between the tension member and`