US1650173A

US1650173A - Car truck

Info

Publication number: US1650173A
Application number: US75863A
Authority: US
Inventors: Akitt Norman Beatty
Original assignee: Buckeye Steel Castings Co
Current assignee: Buckeye Steel Castings Co
Priority date: 1925-12-16
Filing date: 1925-12-16
Publication date: 1927-11-22
Anticipated expiration: 1944-11-22

Description

Nov. 22, 1927. 1,650,173

- N. B. AKITT cm TRUCK Filed Dec. 16. 1925 2 Sheets-Sheet l Nov. 22, 1927.

N. B. AKITT CAR TRUCK Filed Dec. 16. 1925 2 Sheets-Sheet 2 Patented Nov. 22, 1927.

UNITED ST NORMAN IBEATTY AKI'IT, OF WILMINGTON, NORTH CAROLINA, ASSIGNOR TO THE BUCKEYE STEEL CASTINGS COMPANY, OF COLUMBUS, OHIO.

GAE TRUCK.

Application filed December 16, 1925. Serial No. 75,863.

This invention relates to car trucks and has for its object the provision of a novel construction whereby wheel changes may be made, when necessary, without completely disassembling the truck. The invention also has for an object the provision of a novel bolster, spring plank, and brake hanger bracket. The invention is illustrated in the accompanying drawings and will be hereinafter fully described, the novel features being pointed out in the appended claims.

In the drawings, Figure 1 is a plan view of a portion of a car truck, illustrating the invention;

Figure 2 is a side elevation;

Figure 3 is a view showing the side frame in section and the bolster and spring plank in elevation;

Figure 3 is a plan view showing the spring plank;

Figure 4 is a detail end elevation of the spring plank and the brake hanger bracket:

Figure 5 is a detail perspective showing one construction for locking the spring plank in the side frame.

In'the drawings. the numeral 1 designates the side frame having integral journal boxes 2, and of any approved design providing an opening 3 to receive the ends of the spring plank 4 and the bolster 5. The bolster is of the usual general form and is provided on its sides near its end with a vertical offset lug or shoulder 6 adapted to bear against the inner side of the side frame so that endwise movement of the bolster outwardly through the side frame will be prevented. Spaced inwardly from the stops 6 are other stop lugs or shoulders 7 on the sides of the bolster. The spring plank is substantially U-shaped in cross section to fit snugly in the lower portion of the opening 3, and openings or sockets 8 may be provided through the base of the plank to receive lugs 9 on the side frame and thereby lock the plank and side frame together. The brake hanger brackets 10 are cast integral with the spring plank and are so located that when the parts are assembled to form the truck, the stop lugs or shoulders 7 will bear against the sides of the brackets, as shown in Figure 1, thereby preventing lateral separation of the bolster and s rin plank.

With the escribed construction, when the parts remainlng intact. When the parts are assembled, the

lugs

6 and 7 cause the lateral forces working through the bolster to be transmitted to the side frame simultaneously at upper and lower levels so that the forces are distributed and the tendency of the side frame to rock is overcome to a degree not possible when the force is applied above the journal bearings as in the usual type of truck.

Instead of locking the spring plank to the side frame by the lugs 9 and sockets 8, the arrangement shown in Figure 5 may be employed. In this form. lugsll are formed on the sides of the opening through the side frame and are arranged in pairs spaced apart both vertically and horizontally. Vertically spaced lugs 12 are formed on the side flanges of the spring plank and so disposed that when the spring plank is slid into position in the side frame. the lugs 12 will ride over the respective lugs 11 and then .drop into place between the horizontally alined lugs to positively lock the plank to the side frame.

Having fully described my invention what I claim as new and desire to secure by Lettors-Patent, is f- 1. In a car truck, a side frame having an opening therethrough. spaced lugs on the sides of the opening through the side frame arranged in vertical and horizontal alinement, a spring plank having its end 'inserted in the opening in the side frame, and vertically spaced and aligned lugs on the spring plank to pass between the vertically alined lugs on the side frame and engage between the horizontally alined lugs.

2. In a car truck, a side frame having an opening therethrough. spaced lugs on the sides of the opening through the side frame arranged in vertical and horizontal alinement, a spring plank having its end inserted in the opening in the side frame, vertically spaced and alined lugs on the spring plank to pass between the vertically alined lugs on the side frame and engage between the horizontally alined lugs, and brake hanger brackets carried by the spring plank.

III

(iii

3. In a. car truck, a side frame having an opening therethrough, a spring plank locked in said opening, brake'hanger brackets carried by the spring plank, and a bolster inserted in the opening through the side frame above the spring plank and provided on its sideswith stops engaging the inner side of the side frame and the inner side of the brake hanger bracket respectively.

4. In a car truck, a side frame, a spring plank having its end fitted in the side frame, a bolster fitted in the side frame above the spring plank, and means for limiting relatively outward movement of the bolster and the spring plank while permitting vertical movement whereby the spring plank and bolster may be raised and the side frame then, withdrawn.

5. In a car truck, a side frame, a spring plank having its end fitted in the side frame, rake hanger-brackets carried by the spring plank, a bolster fitted in the side frame above the spring plank, and means for limiting relatively outward movement of the bolster and the spring plank while permitting vertical movement whereby the spring plank and bolster may be raised and the side fra'me then withdrawn.

6. In a car truck, a side frame having an opening therethrough, a spring plank locked in said opening, brake hanger brack-.

ets carried by the spring plank, and a bolster inserted in the opening through the side frame above the spring plank and provided on its sides with stops engaging the inner side of the side frame and the inner side of the brake hanger bracket respectively, said stops being disposed at different elevations.

7 In a car truck. a side frame with journal boxes, a spring plank locked thereto, brake hanger brackets carried by the spring plank, bolster springs resting in the spring v lank, a bolster passing through the opening 1n the side frame, said opening permitting vertical movement of spring plank and bolster for the purpose of unlocking the spring plank and permitting the removal of the side I frame as one piece.

8. In a car truck, a side frame with journal boxes, a spring plank locked thereto, brake hanger brackets carried by the spring plank, bolster springs resting in the spring plank, a bolster passing through the opening in the side frame, said opening permitting vertical movement of spring plank and bolster for the purpose of unlocking the spring plank and permitting the removal of the side frame as one piece, without disturbance of brake gear. 7

9. In a car truck, a side frame with journal boxes attached having an opening therethrough, a spring plank having its end disposed in saidopening and resting 'on the frame, interengaging means on the spring plahk and the side frame to lock the side frame to the spring plank, brake hanger brackets carried by the spring plank, stops on the bolster engaging the inner side of the side frame and the inner side of the brake hanger bracket respectively and means for disengaging the locking devices when the system comprising the frame, spring plank,

springs, and bolster have been raised to permit the withdrawal of the side frames, all without disturbance of the brake gear.

. 10. In a car truck, a side frame having integral journal boxes and having a central opening, a spring plank inserted in the opening and gravity-locked with the side frame and carrying brake hangers and springs. and a bolster resting on the springs and extending through the opening, said bolster having stops on its sides limiting relative inward movement of the side frame, but permitting withdrawal of the side frame without disturbing the normal relation between spring plank, brake rigging, springs and bolster.

11. In a car truck, a side frame having integral journal boxes and having a central opening, a spring plank inserted in the opening and gravity-locked with the side frame and carrying brake hangers and springs, and a bolster resting on the springs and extending through the opening, the bolster having stops on its sides at the inner side of the side frame wherebythe spring plank and superposed parts may be raised vertically, without disturbing the relation of the bolster, brake rigging, springs and spring plank,

to release the spring plank from the side frame and permit disengagement of the journal box parts and subsequent lateral withdrawal of the side frame.

12. In a car truck, a side frame, a spring plank carrying brake hanger brackets and interlocking with the side frame. a bolster fitted in the side frame above the spring plank. stops on the sides of the bolster abutting the inner sides of the side frames. and other stops on the sides of the bolster abutting the inner sides of the brake hanger brackets to limit outward movement of the bolster relative to the side frame but permit vertical movement of the spring plank and bolster and subsequent lateral withdrawal of the side frame.

13. In a car truck, a side frame, a spring plank carrying brake hanger brackets and interlocking with the side frame, a bolster fitted in the side frame above the spring plank, and stops on the sides of the bolster abutting the inner sides of the brake hanger brackets to limit the relative outward movement of the bolster and permit vertical move ment of the spring plank and bolster and lateral withdrawal of the side frame.

14. In a car truck, a side frame, a spring plank having its end fitted in the side frame, a bolster fitted in the side frame above the spring plank, and stops on the sides of the bolster abutting the inner side of the side frame whereby to limit the relative outward movement of the bolster and permitting withdrawal of the side frame after the spring 5 plank and bolster are raised.

15. A method of assembling a side frame With the spring plank, springs and bolster of a car truck, which consists in supporting the spring plank, springsand bolster in a position -above normal, moving the" side frame bodily sidewise to and about the ends of the bolster and the spring plank; and then lowering the spring plank into interlocking engagement with the bottom member of the side frame.

16. A method of disassembling a side frame from other members of a car truck which consists in raising the spring plank out of engagement with the side frame while retainingfthe springs and bolster in position supported by the spring plank, and then moving the side frame bodily outward.

In testimony whereof, I havesigned this specification.

NORMAN BEATTY AKITT.