US1211146A

US1211146A - Car-truck.

Info

Publication number: US1211146A
Application number: US255015A
Authority: US
Inventors: Soren Hansson
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-01-16
Filing date: 1915-01-16
Publication date: 1917-01-02
Anticipated expiration: 1934-01-02

Description

S. HANSSON.

C'AR TRUCK.

Armenian meu um. le. m5.

Patented Jan. 2,1917.

2 SHEETS-SHEET 2.

FIG. 2

S. HANSSUN.

CAR TRUCK.

APPLICATION mw 1^n.16.|s1s.

i, 1,211,146. l *Ilwnted Jan.2,`1917.

' 9 2 SHETS-SHEET FIGA INVENTOR SOREN HANSSON', 0F NEW GLASGOW, NOVA SCOTIA, CANADA.

CAR-TRUCK Specification of Letters Patent.

Patented Jan. 2, 1917.

Application led January 16, 1915. Serial No. 2,550.

To all whom z't may concern:

Be it known that I, SoREN HANssoN, a resident of New Glasgow, in the Province of Nova Scotia and Dominion of Canada, have invented a new and useful Improvement in Car-Trucks, of which the following is a specification.

This invention relates to railwa car trucks, and particularly to the side rames thereof.

The object of the invention is to provide an improved truck side frame construction which can be readily assembled in the railway shop, which can be artly built up out of ordinary rolled stock bars, which is very rigid and is thoroughly reinforced against loosening or bending under service conditions, and in which all lateral play between the column post or journal box and arch bars is positively prevented.

A further object of the invention is to provide an improved truck side frame which does away with the usual column post bolt, and which therefore is stronger and more durable than truck side frames as now constructed.

A further object of the invention is to provide a ltruck side frame having the column post formed in one piece so that it forms a solid, rigid connection between the arch bars and not only strengthens the construction but also enables it to be more readily and cheaply assembled.

Further objects of the invention are in art obvious and in part will appear more 1n detail hereinafter.

In the drawings, Figure 1 represents a side elevation, partly in section, of one half of a truck side frame embodying the invention; Fig. 2 is a sectional, elevation on the lie 2 2, Fig. 1, and showing the column ost and the arch bars connected thereto; Fig. 3 is a detailed sectional elevation through the upper end of the column post and showing the top arch bar in cross section, and illustratin a modification; Fig. 4 is a side elevation o the construction shown in Fig. 3; Fig. 5 is a longitudinal section through the joint between the top .arch bar and t e up er `end of the column post and showing a fiirther modification; Fig.' 6 is a cross section on the line 6 6, Fig. 1; Fig. 7 is a detail view of a brake hanger loop; and Fig. 8 is a longitudinal sectional view through the upper end of the journal box and showin a modified form of connection to the arch ars. v

The truck frame shown in the drawings comprises top arch bar l, lower arch bar 2, tic bar 3, column post 4, and journal box 5, all assembled in the usual manner of arranging the several parts of a truck side frame.

The column post 4 is of special construction, being formed of cast or forged metal and in one piece so that it provides a rigid connection between the top and bottom arch bars. As shown, the column post has a cavity or channel 6 on its inner face to enable the bolster to be inserted after the side frame is assembled. On its opposite face it is provided with a hook 7 for receiving the brake hanger loop 8. This hook may be formed integral with the column post but as shown is integral with a transverse web 4 extending between two vertical side flanges 4P on the inner side of the column post. Its upper and' lower ends straddle the top and bottom arch bars l and 2 respectively, the upper end being provided with side arms or extensions 9 lying at the sides of the top arch bar l, and its lower end being provided with depending side arms or extensions l() lying at the sides of the bottom arch bar. This enables the arch bars to be bent to the proper form from regular bar stock and assembled with the journal box 5, after which the column posts can bc inserted in 'an inclined position and then turned up and secured in their final position. The sidearms of the column post prevent side play between the column post and arch bars and the arms at the lower end of the column post tie the bottom arch bar 2 `and the tie bar 3 together, so that they cannot escape from each other. The column post is also connected to the arch bars by wedges which take up all play and tighten up all of the 'oints so as to produce a very strong and solid truss. As shown, the side arms 10 at the lower end of the column post are provided with apertures 11 to receive a' cross wedge 12, which is driven in with heavy pressure after the truss has been assembled and which draws the column ost tightly down against the bottom arch ar. A similar wedge 13 is inserted between the upper end of the column post and the top arch bar 1, so as to take up all play between the column post and the arch bars. The

wedges

12 and 13 may be headed up at both ends in order to secure them in place, nr may be of the form shown at 14 in Fig. 3, where the wedge is provided at its smaller end with a threaded shank 15 to receive a nut 16. Said wedges preferably are fiat on one side and curved-on the other, as shown at 30, to fit a curved seat on the' column post. This enablesl them to tilt or adjust themselves, when driven in cold, and thereby insure a good bearing on the arch bars.

The upper and lower ends of the column post may be either open or closed, as desired. Figs. 3 and 4 show an arrangement where the upper end of the column post is open or, in other words, the outer ends of the side arms 9 of the 4column post are free of connection with each other and merely straddle the sides of the arch bar. The lower end of the column post may be constructed in a similar manner. In the forms shown in Figs. 1 and 2 the outer ends of the arms at the upper and lower ends of the column post are connected by an integral cross member 17, which forms a loop wholly surrounding*l the arch bar and materially increases t e strength of the truss as a whole, as it prevents the side arms from opening up and permitting the arch bars to escape. With this form of truss the arch bars must be inserted endwise through the open loops to assemble the truss, the wedgesl being driven in to finally tighten up all of the joints.

The journal box 5 is of the usual form and is connected to the

arch bars

1 and 2 and tie bar 3 by the usual bolts passing through apertures 18 in the journal box and bars.

To further increase the strength of the truss and prevent play between the parts, the upright compression members of the truss, such as the column posts and journal box, are'provided with direct interlocking connectlons with the arch bars, such as by a dowel pin orprojection on one part interitt-ing with a socket or aperture in the other part. It is immaterial whether the dowel pin is on the upright compression member lor on the arch bar. As shown in Fig..1, the lower endof the column post 4 is provided with a dowel pin or projection 19 fitting within a correspondingV socket or depression in the lower arch bar 2. Said pin and its ysocket may be slightly tapered or conical in order to provide a neat fit and secure a wedging action and tight connection between the column post and arch bar when the wedge 12 is driven in. The cross member 17 of the loop at the u per end of the column post is alsmprovid with a similar pin or projection 19* which fits in a. corresponding seat or socket in the upper surface of the top arch bar 1. These dowel pins form guides for properly locating the column post with reference to the arch bars and wholly prevent any relative horizontal movement therebetween. The sockets preferably extend only part way through the arch bars, which secures the benefits of the interlocking or dowelV connection without materially decreasing the strength of the arch bars.

As shown in Figs. 3 and 4, the dowel pin 19b at the upper end of the column post may be located on the column post, with the socket in the lower surface of the up er arch bar. Fig. 5 shows an arrangement W ere the dowel pin, marked 19, is formed by punching or forging out a portion of the upper arch bar to form a projection which fits within a socket or aperture in the upper end of the column post. Similar connections are provided between the journal box and` arch bars, two forms of. said connections being shown.

In Fig. 1 the journal box is provided with an upwardly extending pin or projection 19d which fits within a corresponding seat or socket in the lower face of the lower arch bar 2. Fig. 8 shows an arrangement in which the upper and lower arch bars are connected above the journal box by a bolt or rivet 20, which isprovided at its lower end with a head 19 which fits within a socketor depression formed within the upper face of the journal box. The dowel connections between the journal box and arch bars prevent relative horizontal movement and form a rigid and solid connection between theeeparts. Similar connections may also be provided, if desired, between the lower face Qi' the journal box and the tie bar 3.

To furtfi'er increase the sidewise rigidity of the truss and prevent shearing strain on the bolts for connecting the journal box and arch bars, I provide a suitable clamp for connecting the two arch bars adjacent the journal box. As shown, these clamps consist of two side members 21 having grooves or channels 22, ea/chmember' being arranged to straddle the side edges of the tw'o arch bars. The side walls of the channels are preferably slightly inclined or tapered, as shown at 23. The two clamps are placed over the arch bars and are then connected in any suitable manner, as by a rivet 24 headed over on both ends. When thisrivet cools and shrinks it draws the clamps tightly against the arch bars so that they wedge between the inclined walls of the grooves in the clamps and form a close and firm connection which prevents all lateral plat between the arch bars. The clamps descri ed also increase the bending stren h of the arch bars where they are appli and also pevent relative longitudinal movement tween the arch bars.

The brake hanger loop 8 is forged in one if desired, be welded at the the dotted line 25. One or both of its side portions are slightly fiattened, as at 26, to enable it to be slipped through the opening 27 above the hook 7, after which the loop is turned to its proper position on said hook, and in which position its round body cannot escape through the restricted passage 27. This prevents loss of the brake hanger loop.

The truck side frame described is very strong and rigid and the parts are not liable to work loose under the racking strains and stresses of service. It is iully reinforced at all of the usual weak points and d'oes away entirely with the usual column post for connecting the column to the arch bars. It can be readily assembled and can also be built up in the ordinary railway shop by forming the arch bars and tie bar from ordinary rolled stock bars and assembling them with the special column post. The frame may be constructed at relatively low cost and is also very durable'.

lVhat I claim is 1. A truck side frame, comprising arch bars, integral column posts connecting the same, and wedge members whose length is perpendicular to the plane of the frame and arranged to tighten and connect said arch bars and column posts.

2. A truck side frame, comprising upper and lower arch bars, integral column posts connecting the same, and wedges driven in between said arch bars and portions of said column posts for tightening'and connecting the same.

3. A truck side frame', comprising upper and lower arch bars, integral column posts connecting the same and'having side arms embracing said bars, said arms being provided with openings, and wedges driven in through said openin s for securing the co1- umn posts to the arc bars.

4. A truck side frame, comprising arch bars, integral column posts connecting the same, said column posts being provided with side arms straddling said bars and lateral piece and may, bottom, as along extending wedges connecting said column posts and arch bars.

5. A truck side frame, comprising upper and lower arch bars, integral column posts connecting said arch bars, interlocking c0nnections between said column posts and arch bars at each en'd of said column posts, a journal box, and dowel connections between said journal box and arch bars.

6. A truck side frame, comprising upper and lower arch bars, integral column posts lying between said bars and at their ends provided with integral loops surrounding the same, and Wedges passing th'rough side members of said loops and securing said posts and arch bars together.

7. A truck side frame, comprising upper and lower arch bars, integral column posts lying between said bars and at their ends provided with integral loops surrounding the same, wedges passing through side members of said loops and securing said posts and arch bars together, and dowel connections between the end portions of said column posts and said arch bars.

8. A truck side frame, comprising upper and lower arch bars, column posts connecting the same and secured thereto, a journal box to which the arch bars are secured, and clamping members arranged to embrace and engage said arch bars adJacent to said journal box and prevent lateral play therebetween.

9. A truck side frame, comprising upper and lower arch bars, column posts connecting the same and secured thereto, a journal box to which said arch bars are secured, and grooved clamping members adjacent to said journal box and arranged to receive both of said arch bars and prevent lateral play therebetween.

In testimony whereof, I have hereunto set my band.

SOREN HANSSON.

Witnesses:

SADm M. Plums, JEAN I. REID.