US1760196A - Car truck - Google Patents

Description

M. R. HANSEN May 27, 1930.

CAR TRUCK Filed July 23, 1929 2 Sheets-Sheet 1 attorneys M. R. HANSEN May 27, 1930.

CAR TRUCK 2 Sheets-Sheet 2 Filed July 23, 1929 Patented May 27, 1930 P A T MERRITT R. HANSEN, F COLUMBUS, OHIO, ASSIGNOR TO THE BUCKEYE STEEL CAST- INGS COMPANY, OF COLUMBUS, OHIO CAR TRUCK Application filed m 23,

sists in the novel features hereinafter described in detail, illustrated in the accompanying drawings, and more particularly pointed out in the appended claims.

Referring to the drawings,

Fi 1 is a side elevation of my improved side rame.

Fig. 2 is a plan view, the right hand portion being a bottom plan, and the left hand portion being a top plan.

Fig. 3 is a transverse vertical sectional view on the line 3-3 of Fig. 1.

Fig. 4.- is a transverse sectional view of a detail on the line t-1 of Fig. 1.

Fig. 5 is a horizontal sectional view of a detail on the line 55 of Fig. 1.

.Fig. 6 is a transverse vertical sectional view on the line 6-6 of Fig. 1.

Fig. 7 is a detail sectional view on the line 77 of Fig. 1.

In the drawings, the compression member of the side frame is designated 8, the tension member 9, the columns 10, and the journal boxes 11.

In my improved construction, the diagonal portions 12 of the tension member converge downwardly from the tops of the journal boxes to the points X where they join the spring seat 13. It has been customary heretofore to extend the main web14 of these diagonal portions downwardly, so as to merge the same into the ends of the spring seat, but in my improved construction, the main portions of such webs are curved upwardly, as shown at 15, and they merge into the main webs 16 of the columns.

.The side portions however, of the inclined webs 14, form straps 17 which are spaced apart and which merge at the points X into the spring seat. It will be noted that the lower portions of these straps extend diag- 1929. Serial No. 380,363.

onally across the lower corners of the bolster opening of the side frame, and thus provide internal cavities 18 to accommodate some of the springs which support the bolster, (not shown).

From Fig. 4 it may be seen that each of the inclined portions 12 is of inverted U-shape throughout its intermediate portion to provide downwardly extending flanges 19 which merge into the sides of the box section 20, whose top is formed by the spring seat 13.

This design provides for increased spring capacity and permits all the springs to be arranged on one level, that is, to rest on the spring seat 13 which is in a single plane. Furthermore, thetension member web establishes a direct continuous connection from the top of the journal boxes to the top of the spring seat 13, and also a continuous connection to the webs of the columns. It will also be noted that the spring seat plate 13 continues horizontally outward to support spring coils at the foot of the columns, and then curves vertically upward as shown at Y to form transverse webs 21 for the lower parts of the columns.

In this design, the diagonal tension member really originates at the points X, instead of at the usual points Y. This arrangement has two distinct structural advantages, viz.:

The effective span of the spring seat memher is materially reduced, which makes it a stronger member.

Lifting the lower end of the diagonal tension members also raises the line of action of the forces in these members with respect to the spring seat member force, and produces a favorable counter active bending tendency which reduces the bending in the central portion of the spring seat member.

From the foregoing it is believed that the construction, and advantages of the invention may be readily understood, by those skilled in the art, and it is apparent that changes may be made in the details disclosed, without departing from the spirit of the invention, as expressed in the claims.

What I claim and desire to secure by Letters Patent is:

1. In a car truck side. frame, a tension memthe web of the column.

her having an inclined transverse web, and a bolster opening column having a transverse web merging into the web of the tension member.

2. A car truck side frame including a spring seat, a bolster opening column and an inclined portion forming part of a tension member, the lower end part of said inclined portion being divided at its upper side into connected elements, one of said elements extending transversely and upwardly and merging into the column, and another one of said elements continuing downwardly and merging into the spring seat.

' 3. In a car truck side frame, a bolster opening column and a tension member having a downwardly inclined portion, said ,column having a transverse web and the downwardly inclined portion having a web, the lower end part of the web of the inclined portion being extended upwardly and merging into 4. In a car truck side frame, a bolster opening column and a tension member havinga substantially channel-shaped downwardly inclined portion, the lower end part of the downwardly inclined portion having its web turned upwardly and merging into the lower end of the web of the column.

5. In a car truck side frame, a bolster'opening column, a spring seat, straps extending upwardly from the spring seat to the lower end of the web of the column, a tension mem her having an inclined portion provided with a web, a portion of the last mentioned web being turned upwardly and merging into the web-of the column between said straps.

- 6. In a car truck side frame, a bolster opening colulnn having a web, a spring seat,-

spaced straps uniting the spring seat with the lower end of the web of the. column, a diagonal tension member having a web, the lower end portion of the web of the tension member being divided into a central part and side straps, the central part merging into the central portion of the web of the column, and

the last mentioned side straps merging at their ends into the spring seat.

7 A car truck side frame including a compresslon member, a tenslon member having its ends joined to the ends of the com ression member, columns arranged between said members, journal boxes arranged at the ends of said members, a spring seat formed on the tension member between said columns, the tension member including downwardly converging portions having webs, the lower end portions of the webs being divided into a central tab and side straps, the central tabs merging into-the columns, and the side straps merging into the spring seat at points spaced inwardly from said columns. Y

8. In a'car truck side frame, bolster open ing columns provided with webs, a spring seat, spaced straps joining each end portion of the spring seat to the web of the column at that end of the seat, and converging tension members, each tension member having a web divided at its lower end portion into a central tab and side straps, the central tabs merging into the webs of the columns between'the first mentioned straps, and the straps of the tension members merging into the spring seat at points spaced inwardly from the columns.

9. In a car truck side frame, bolster opening columns provided with substantially vertically disposed webs, a spring seat arranged below the lower ends of the columns, straps joining the ends of the spring seat to the webs of the columns, and diagonal tension members provided with webs, a portion of the last mentioned webs merging into the webs of the columns, and other portions of the tension member webs merging into the spring seat at points spaced inwardly from the columns. I

' 10. In a car truck side frame, a bolster opening column having a transverse web at the inner side thereof, a spring seat, spaced straps uniting the spring seat with the lower end of the web of the column, a diagonal tension member having a transverse web, the lower end portion of the web of the tension member being divided into a central part and side straps, the central part merging into the central portion of the web of the column, and the last mentioned side straps merging at their ends into the spring seat at points spaced inwardly from the lower end of the column. i

In testimony whereof, I have signed'this specification.

' V 1 MERRITT R. HANSEN.

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