US1745736A - Car-truck construction - Google Patents

Description

Feb. 4, 1930.

S. P. BUSH CAR TRUCK CONSTRUCTION Filed Dec. 21. 1926 3 Sheets-Sheet Feb. 4, 1930. s. P. BUSH 1,745,736 CAR TRUCK CONSTRUCTION I Filed D80. 21, 1926 3 Sheets-Sheet 2 ,Qzd IiiiiF Feb. 4, 1930 s. P. BUSH CAR TRUCK CONSTRUCTION 5 Sheets-Sheet 5 Filed Dec. 21, 1926 I Patented Feb. 4, 1930 sAnt ELr. nusrror COLUMBUS, c1110, ssr'enon to THE BUCKEESZE- S EEL CASTINGS COMPANY, or COLUMBUS, OHIO CAR-TRUCK oons'rnuo'rron Application filed December 21, 1926. Serial No. 156,169.

I This invention relates to car trucks of that type in which the truck bolster and bolster support mayswing laterallywith respect to the side frames, the object being to provide a novel construction whereby the transoms and hangers will be supported within the side frames so that, in the event of breakage,

the partswill be caught in the side frame and will not drop onto the track toderail thecar. s The invention is illustrated in the accom-' panying drawing and resides in certain novel features which will be first fully described and then more particularly defined in the appended claims. v

In the drawing, Figure 1 is a side elevation of a portion of a car truck embodying the invention;

Figure 2 is a view showing the side frame F i in transverse section and the end of the bolster'and associated parts in elevation;

Figure 3 is a view partly in plan and partly in section on the line 33 of Figure 1;

Figure 1 is a section on the line 44 of i I Figure 1 Figure 5'is an elevation of'an end portion of a transom;

; to Figs. 1, 2 and 3, respectively, showing a Figures 6, 7 and 8 are views corresponding modification I hangers 8, one at each side of thebolster and the spring carrier, and just below the upper V member 3 the columns 4' are inset to define recesses 9 receiving the ends of the transoms 10 which connect the two side frames.

will be noted that the transoms rest on shoulders 11, formed on the columns 4, and

, are provided on their under sides with lugs 12 engaging in sockets provided therefor in the-shoulders whereby separation of the tran- I soms transverselyfrom the side frames is prevented, In their upper edges, adjacent their menti more effectually withstand the impact of the Figures 9 and 10 are detail views showing ends, the transoms areformed with concave notches 13 forming seats for pins 14: which passthrough the upper ends of the hangers to pivotally "suspend the latter, said pins being inserted through and supported by lugs or webs 15 depending from the upper member 3 of the side frame. The lugs or webs 15 and the columns 4 effectually prevent movement of the hangers and transoms longitudinally of the side frames,.and, to support the brake mechanism in fixed position on the truck, brake hanger brackets 16 are formed integral with the transoms. As shown most clearly in Fig. 1, the lugs 15 are provided on their inner sides with .stop'lips 15 to prevent endwise movement of the pins '14:, the pin dropping behind the lip,-as it is put in place, in an obvious manner. The lower ends of the hangers receive trunnions 18 on the spring carrier 7 whereby said carrier will be supported by the hangers and may have some swinging move- To reenforce the side frames and hangers and spring carrier, in the event that some accident should cause them to fall, the ribs 19 are formed on the lower member 2 of the side frame at the base of each column 4. Y The side frame is preferably provided on its inne'rside with inwardly projecting stopvarms or brackets 20 which extend alongsideithe bolster to guide it sidewise and effectually resist the reactions due to forces transverse of the bolster. These arms or brackets may, however, be omitted in small trucks intended for lightservice.

Instead of the hangers 8 which are in the form of elongated loops, the hangers 21, shown in Figs. 6, 7 and 8, may be employed. The hanger 21 consists of a bar tapered toward'gits lower end and provided with the slot 22 in itsupper. portion whereby it may beypivot-ally suspended on the pin 14, as in the previously described form of the inventio'n.v wAt its lowerxend, the-hanger 21 is provided with a crossheadorstud 23, and thespring carrier 24 is provided with alug 25-011 itsrside having anotch 26 in its, lower edge t'o engage over the crosshead 23,-the crosshead being circular, in cross section vvfh'ereby the spring carrier may have relaing surface.

tive rocking or pivotal movement, as will be understood on reference to Fig. 7. The lug is in the form of a bail as shown in Fig. 8, being open at top and bottom and of proper dimension to permit the hanger to be inserted upwardly therethrough in assembling the parts. The column of the side frame is offset, as at 27, to accommodate the greater width of the lug 25 and the outer side of the lug provides an extended wearing surface against the wall of the bolster opening.

The .transoms may be cast in one integral unit, the two side members being connected by a horizontal plate or web 31, as indicated in Fig. -7.

In the form shown in Figures 9 and 10, the hanger 8 of the first-described form is used, but the trunnion on the spring carrier 28 is formed at its outer end with a head 29 which is laterally elongated, as shown in Fig. 10, whereby it will retain the hanger on the trunnion and will also furnish the desired wear- The improved construction herein shown and described minimizes the number of necessary parts and produces a compact and strong truck which will possess the desired swinging characteristic of the bolster and its support while preventing such excessive movement as might cause separation of the parts.

Having fully described myinvention what I claim as new and desire to secure by Letters Patent, is

1. In a car truck construction, a side frame having columns provided at their upper ends with transverse shoulders and sockets in the shoulders, hangers pivotally suspended in the frame, a spring carrier supported by the hangers, and transoms having their ends resting on said shoulders and provided on their under sides with lugs engaging in said sockets the transoms being further provided engaging the sockets in the shoulders, hang ers, pivot pins for said hangers, said pivot pins resting upon said transoms, supports for said pivot pins depending from the upper portion of the side frame, a spring carrier supported by said hangers, and a bolster en-' tering between said columns above the spring carrier.

5. The combination of a car truck side frame including columns spacedapart, shoulders formed on the upper portions ofsaid columns, transoms supported by said shoulders, hangers, pivot pins for said hangers, said pivot pins resting upon said transoms,

supports for said pivot pins depending from the upper portion of the side frame, stops on said supports for said pivot pins, a spring carrier supported by said hangers, and a bolster entering between said columns above the spring carrier. I

In testimony whereof, I have signed this specification. I r

I SAMUEL P. BUSH.

withrecesses in their upper sides to accommodate and support-the hanger pivots.

2. In a car truck construction, a side frame having a bolster opening, hangers pivotally suspended'in' the opening of the side frame, and 'a spring carrier disposed between the hangers, trunnions connecting said carrier and hangers, there being wearsurfaces on the trunnions to prevent the hangers from wearing against the sides of the bolster opening.

3. In a car truck construct-ion, a side frame having a bolster opening, hangers pivotally suspended in the opening of the side frame,

and a spring carrier pivotally mounted in the hangers, there being wear surfaces on the sides of the hanger connection of the spring carrier to prevent the hangers from wearing against the sides of the bolster opening.

4. The combination of a car truck side frame including columns spaced apart, shoule ders formed on. the upper portions of said columns and provided with sockets, transoms supported by said shoulders and having lugs

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