US1381113A

US1381113A - Side-frame arrangement

Info

Publication number: US1381113A
Application number: US372222A
Authority: US
Inventors: George G Floyd
Original assignee: American Steel Foundries
Current assignee: American Steel Foundries
Priority date: 1920-04-08
Filing date: 1920-04-08
Publication date: 1921-06-14
Anticipated expiration: 1938-06-14

Description

G. G. FLOYD.

SIDE FRAME ARRANGEMENT.

APPLICATION FILED APR. 8, 1920.

1,38 l, 1 l 3. Patented June 14, 1921.

. fnoqz 109- Georg c (oyd,

GEORGE G. FLOYD, OF CHICAGO, ILLINOIS, A$SIGNOR 1'0 AMERICAN STEEL FGUNDRIES, OF CHICAGO, ILLINOIS, A. CORPORATION OF NEW JERSEY.

SIDE-FRAME ARRAN GEMZEN' '1.

To all whom it may concern:

Be it known that I, Gnonon G. FLOYD, a citizen of the United States, residin at Chicago, in the county of Cook and tate of Illinois, have invented certain new and useful Improvements in Side-Frame Arrangements, of which the following is a Specification.

This invention relates to truck side frame arrangements.

In my oopending application, Serial No. 344,7 69, filed December 15, 1919, I have set forth at great length the causes and effects of compression, tension and bending stresses set up in a cast metal side frame, and which are peculiar to the cast type of side frame. In such case I disclosed a cast metal side frame having pedestal jaws for receiving separate journal boxes.

This present application relates more specifically to a cast metal truck side frame which has no pedestal jaws and which has no integrally formed journal box, but preferably has integrally-formed longitudinallyextending portions at the ends of the frame to which the standard Master Car Builders journal boxes are bolted. So far as the compression, tension and bending stresses set up in the frame, and the means for overcoming same, are concerned, this application is the same as my copending application above mentioned. Accordingly, no repetition will be made of the subject matter claimed in the copending application, and only such points as are necessary to give a complete understanding of this present invention will be considered.

In my said copending application I have emphasized the value of transmitting'forces through the upper Web side of the tension member and the compression member by directly connecting the upper Web side of the tension member to the compression member instead of transmitting such forces through the 'ournal box jaws or receiving portions.

owever, in the type of side frame disclosed in this application some mechanical obstacles are resented in securing the journal; boxes to the frame in a manner to meet all requirements.

Accordingly, one object of this invention i to provide simple, efiicient and reliable means for securing journal boxes to cast side frames, in which the Web of the tension memher is secured directly to the compression Specification of Letters Patent. Patent d J 14 1921 1920. Serial No. 372,222.

member at a point adjacent the box fasten ing or securing members.

Another object is to connect a tie bar to a side frame in a simple and efiicient manner and which permits all movement of the tie rod to facilitate connecting and disconnectmg the journal boxes to the side frame.

These and other objects are accomplished by means of the arrangement disclosed on the accompanying sheet of drawings, in wh1ch Figure 1 is a fragmenta side elevation of a truck side frame embo ying my invention, a part of the side frame being broken away to show the journal box connecting means;

Fig. 2 1s a top plan view of the same, a part being broken away for the sake of clearness;

Figs. 3 and 4 are sectional views taken, respectively, on lines 3-3 and 4r-4: of Fig. 1;

Fig. 5 is a detail view showing a modification of the means for connecting the tie rod to the side frame; and, T

Fig. 6 is a sectional view taken in the plane of line 6-6 of Fig. 5.

The variou novel features of my invention will be apparent from the following description and drawings and will be particularly pointed out in the appended claims.

Referring to the figures of the drawings, it will be noted that I have shown a cast side frame having a tension member 10, compression member 11, columns 12 (only one being shown) and journal box receiving portions 13 cast in a single piece. In this particular case the tension and compression members are U-shaped in section and have their webs 1 1 and 15, respectively, at the upper sides of said membersand connected to each other at a point 16 over the flange 17 which receives the journal box 18, which in this case is the standard Master Car Builders journal box having the

usual bolt lugs

19, 20, 21 and 22. The advantages of having the tension and

compression members

10 and 11 formed and connected in the manner here shown, has been considered in detail in my said copending application. Suffice to say, in this connection, that by means of this arrangement excessive tension and bending stresses are obviated. While improving the cast type of side frame in the mannerindicated, certain obstacles have been encountered in securing the journal boxes to theside frame in an efficient manner. For example, by having the web 14 of the tension member extend to the web of the compression member in a straight line, as shown in Fig. 1, for the reasons given, difliculty was resented in placing the inner journal box bolt 23 in position for holding the journal box. In two other copending applications, Serial Nos. 372,220 and 372,221, filed April 8, 1920, I have overcome the difliculties mentioned by providing the webs of the tension and compression members with alined openings for the reception of the inner journal box bolt. It may be preferable to secure the journal box to the side frame without punc-- turing the webs of the tension and compression members. To this end I have provided the arrangement disclosed in this case, in which the inner journal box bolt 23 is applied, in a different manner. It will be noted that the side frame flange 17, to which the journal box is attached, is provided with an elongated slot 24 below and sllghtly 1nwardly from the point of connection 16 between the webs of the tension and compression members. By providing the elongated slot, the inner journal box bolt 23 may be applied with the journal box in an inclined position, as indicated in dotted lines. After the bolt is applied to the journal box, the bolt and journal box are moved into normal vertical position, this being done after the head 25 of the bolt can pass under the web 14 of the tension member. As shown in full lines in Figs. 1 and 2, the inner bolt 23 is in its proper fastening position wherein the bolt head 25 is located behind spaced lugs 26 to prevent lateral movement of the lug. The head 25 of bolt 23, and also the head 27 of outer bolt 28, rest upon the flange 17 the bolts passing down through their respective journal box lugs and openings in a tie bar 29, the lower ends of the bolts receiving washers 30 and nuts 31.

To accommodate the journal box 18 in its inclined position, as shown in dotted lines in Fig. 1, to permit the application of inner bolt 23, I have connected the tie bar 29 to the tension member of the side frame for swinging movement, a pivot pin or rivet 32 serving to pivotally connect the parts in question. As shown in Figs. 1, 3 and 4, the inner end of the tie bar 30 extends up into the channel of the tension member. However, I prefer to provide the tension member with integrally formed ears 33 between which the tie bar 29 may be pivotally connected, as shown in Figs. 5 and 6. The tie bar is bent intermediate its ends to form a horizontal portion at the under side. of the journal box and an inclined portion which extends upwardly toward the tension member of the side frame and at substantially right angles ,thereto. By means of this arrangement the journal box may be applied and fastened to the side frame in a simple, eflicient and reliable manner without puncturing the webs of the tension and compression members.

By providing the pivotal connectionbeof a tie bar bracket is obviated. such tie bar brackets cast integrally with side frames as used heretofore are objectionable to a certain extent in that there is a tendenc for the metal to shrink or crank aroun the juncture of the bracket and the frame; also the average tie bar bracket adds from fifteen to sixteen pounds to the side frame, while the pivotal connection which I have providedadds only about three or four pounds to the weight of the side frame.

It is my intention to cover all modifications of the invention falling within the spirlt and scope of the following claims.

I claim:

1. In combination, a truck side frame having a journal box receiving flange with an elongated slot therein whereby a securing bolt may be passed therethrough at an nclined angle, and a journal box receivmg said bolt in an. inclined position, after which the bolt and box may be moved into normal position.

2. In combination, a truck side frame having a journal box receiving flange with an elongated slot therein whereby a securing bolt may be passed therethrough at an inclined angle, a journal box receiving said bolt in an inclined position, after which the bolt and box may be moved into normal position, and a tie bar connected to said box and pivotally connected to the side frame.

3. In combination, a truck side frame having a journal box receiving flange with an elongated slot therein whereby a securmg bolt may be passed therethrough at an tween the tie bar and the side frame the use inclined angle, a journal box receiving said bolt in an inclined position, after which the bolt and box may be moved into normal position, and a tie bar connected to said box and connected to the side frame.

4. In combination, a truck side frame having tension and compression members joined to each other, a journal box receiving flange with an elongated slot therein below the connection between said tension and compression members whereby the securing bolt may be passed through said opening at an inclined angle to avoid the point of connection between said tension and compression members, and a journal box receivin said bolt in an inclined position, after whic the bolt and box may be moved into normal position.

5. In combination, a truck side frame having tension and compression members joined to each other, a journal box receiving flange with an elongated slot therein below the connection between said tension and compression members whereby the securing bolt may be passed throu h said opening at an inclined angle to avoi the point of connection between said tension and compression members, a journal box receiving said bolt in an inclined position, after which the bolt and box may be moved into normal position, and a tie bar connected to said box and pivotally connected to the side frame.

6. A truck side frame including a journal box receiving flange with an elongated slot therein below the connection between said tension and compression members whereby the securing bolt may be passed through said opening at an inclined angle.

7. A truck side frame having a journal box receiving flange with an elongated slot therein whereby the securing bolt may be passed therethrough at an inclined angle to avoid a part of said frame, whereupon the bolt may take its normal position.

8. A truck side frame having a journal box receiving flange with an elongated slot bolt may be therein whereby the securin passed therethrough at an lnclined angle to avoid a part of said frame, whereupon the bolt may take its normal position, and means associated with said bolt for holding same in a given position in said elongated s ot.

9. In combination, a truck side frame having a tension member, and a journal box tie bar pivotally connected thereto within same.

10. In combination, a truck side frame having a tension member with spaced portions, and a journal box tie bar pivotally connected between said spaced portions within the confines of the tension memberwalls.

Si ned at Chicago, Illinois, this 24th day of h arch, 1920.

GEORGE G. FLOYD.